; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 3 ; RUN: opt -passes=loop-idiom-vectorize -mtriple=riscv64-unknown-linux-gnu -loop-idiom-vectorize-style=predicated -mattr=+v -S < %s | FileCheck %s ; RUN: opt -passes=loop-idiom-vectorize -mtriple=riscv64-unknown-linux-gnu -loop-idiom-vectorize-style=predicated -loop-idiom-vectorize-bytecmp-vf=64 -mattr=+v -S < %s | FileCheck %s --check-prefix=LMUL8 ; RUN: opt -passes='loop(loop-idiom-vectorize),simplifycfg' -mtriple=riscv64-unknown-linux-gnu -loop-idiom-vectorize-style=predicated -mattr=+v -S < %s | FileCheck %s --check-prefix=LOOP-DEL ; RUN: opt -passes=loop-idiom-vectorize -mtriple=riscv64-unknown-linux-gnu -loop-idiom-vectorize-style=masked -mattr=+v -S < %s | FileCheck %s --check-prefix=MASKED define i32 @compare_bytes_simple(ptr %a, ptr %b, i32 %len, i32 %n) { ; CHECK-LABEL: define i32 @compare_bytes_simple( ; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0:[0-9]+]] { ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1 ; CHECK-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]] ; CHECK: mismatch_min_it_check: ; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 ; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64 ; CHECK-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]] ; CHECK-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0:![0-9]+]] ; CHECK: mismatch_mem_check: ; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]] ; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]] ; CHECK-NEXT: [[TMP8:%.*]] = ptrtoint ptr [[TMP5]] to i64 ; CHECK-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64 ; CHECK-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]] ; CHECK-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]] ; CHECK-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP10]] to i64 ; CHECK-NEXT: [[TMP14:%.*]] = ptrtoint ptr [[TMP13]] to i64 ; CHECK-NEXT: [[TMP6:%.*]] = lshr i64 [[TMP7]], 12 ; CHECK-NEXT: [[TMP9:%.*]] = lshr i64 [[TMP11]], 12 ; CHECK-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP8]], 12 ; CHECK-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP14]], 12 ; CHECK-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP6]], [[TMP9]] ; CHECK-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP12]], [[TMP15]] ; CHECK-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]] ; CHECK-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VECTOR_LOOP_PREHEADER:%.*]], !prof [[PROF1:![0-9]+]] ; CHECK: mismatch_vec_loop_preheader: ; CHECK-NEXT: br label [[MISMATCH_VECTOR_LOOP:%.*]] ; CHECK: mismatch_vec_loop: ; CHECK-NEXT: [[MISMATCH_VECTOR_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VECTOR_LOOP_PREHEADER]] ], [ [[TMP24:%.*]], [[MISMATCH_VECTOR_LOOP_INC:%.*]] ] ; CHECK-NEXT: [[AVL:%.*]] = sub nuw nsw i64 [[TMP2]], [[MISMATCH_VECTOR_INDEX]] ; CHECK-NEXT: [[TMP19:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 16, i1 true) ; CHECK-NEXT: [[TMP20:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VECTOR_INDEX]] ; CHECK-NEXT: [[LHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP20]], splat (i1 true), i32 [[TMP19]]) ; CHECK-NEXT: [[TMP21:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VECTOR_INDEX]] ; CHECK-NEXT: [[RHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP21]], splat (i1 true), i32 [[TMP19]]) ; CHECK-NEXT: [[MISMATCH_CMP:%.*]] = icmp ne [[LHS_LOAD]], [[RHS_LOAD]] ; CHECK-NEXT: [[FIRST:%.*]] = call i32 @llvm.vp.cttz.elts.i32.nxv16i1( [[MISMATCH_CMP]], i1 false, splat (i1 true), i32 [[TMP19]]) ; CHECK-NEXT: [[TMP22:%.*]] = icmp ne i32 [[FIRST]], [[TMP19]] ; CHECK-NEXT: br i1 [[TMP22]], label [[MISMATCH_VECTOR_LOOP_FOUND:%.*]], label [[MISMATCH_VECTOR_LOOP_INC]] ; CHECK: mismatch_vec_loop_inc: ; CHECK-NEXT: [[TMP23:%.*]] = zext i32 [[TMP19]] to i64 ; CHECK-NEXT: [[TMP24]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX]], [[TMP23]] ; CHECK-NEXT: [[TMP25:%.*]] = icmp ne i64 [[TMP24]], [[TMP2]] ; CHECK-NEXT: br i1 [[TMP25]], label [[MISMATCH_VECTOR_LOOP]], label [[MISMATCH_END:%.*]] ; CHECK: mismatch_vec_loop_found: ; CHECK-NEXT: [[FIRST1:%.*]] = phi i32 [ [[FIRST]], [[MISMATCH_VECTOR_LOOP]] ] ; CHECK-NEXT: [[MISMATCH_VECTOR_INDEX2:%.*]] = phi i64 [ [[MISMATCH_VECTOR_INDEX]], [[MISMATCH_VECTOR_LOOP]] ] ; CHECK-NEXT: [[TMP26:%.*]] = zext i32 [[FIRST1]] to i64 ; CHECK-NEXT: [[TMP27:%.*]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX2]], [[TMP26]] ; CHECK-NEXT: [[TMP28:%.*]] = trunc i64 [[TMP27]] to i32 ; CHECK-NEXT: br label [[MISMATCH_END]] ; CHECK: mismatch_loop_pre: ; CHECK-NEXT: br label [[MISMATCH_LOOP:%.*]] ; CHECK: mismatch_loop: ; CHECK-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP35:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; CHECK-NEXT: [[TMP29:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64 ; CHECK-NEXT: [[TMP30:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP29]] ; CHECK-NEXT: [[TMP31:%.*]] = load i8, ptr [[TMP30]], align 1 ; CHECK-NEXT: [[TMP32:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP29]] ; CHECK-NEXT: [[TMP33:%.*]] = load i8, ptr [[TMP32]], align 1 ; CHECK-NEXT: [[TMP34:%.*]] = icmp eq i8 [[TMP31]], [[TMP33]] ; CHECK-NEXT: br i1 [[TMP34]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]] ; CHECK: mismatch_loop_inc: ; CHECK-NEXT: [[TMP35]] = add i32 [[MISMATCH_INDEX]], 1 ; CHECK-NEXT: [[TMP36:%.*]] = icmp eq i32 [[TMP35]], [[N]] ; CHECK-NEXT: br i1 [[TMP36]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]] ; CHECK: mismatch_end: ; CHECK-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VECTOR_LOOP_INC]] ], [ [[TMP28]], [[MISMATCH_VECTOR_LOOP_FOUND]] ] ; CHECK-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]] ; CHECK: while.cond: ; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[MISMATCH_END]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ] ; CHECK-NEXT: [[INC:%.*]] = add i32 [[LEN_ADDR]], 1 ; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]] ; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; CHECK: while.body: ; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64 ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP37:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP38:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP37]], [[TMP38]] ; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; CHECK: byte.compare: ; CHECK-NEXT: br label [[WHILE_END]] ; CHECK: while.end: ; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[WHILE_COND]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ] ; CHECK-NEXT: ret i32 [[INC_LCSSA]] ; ; LMUL8-LABEL: define i32 @compare_bytes_simple( ; LMUL8-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0:[0-9]+]] { ; LMUL8-NEXT: entry: ; LMUL8-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1 ; LMUL8-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]] ; LMUL8: mismatch_min_it_check: ; LMUL8-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 ; LMUL8-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64 ; LMUL8-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]] ; LMUL8-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0:![0-9]+]] ; LMUL8: mismatch_mem_check: ; LMUL8-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]] ; LMUL8-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]] ; LMUL8-NEXT: [[TMP8:%.*]] = ptrtoint ptr [[TMP5]] to i64 ; LMUL8-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64 ; LMUL8-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]] ; LMUL8-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]] ; LMUL8-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP10]] to i64 ; LMUL8-NEXT: [[TMP14:%.*]] = ptrtoint ptr [[TMP13]] to i64 ; LMUL8-NEXT: [[TMP6:%.*]] = lshr i64 [[TMP7]], 12 ; LMUL8-NEXT: [[TMP9:%.*]] = lshr i64 [[TMP11]], 12 ; LMUL8-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP8]], 12 ; LMUL8-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP14]], 12 ; LMUL8-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP6]], [[TMP9]] ; LMUL8-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP12]], [[TMP15]] ; LMUL8-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]] ; LMUL8-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VECTOR_LOOP_PREHEADER:%.*]], !prof [[PROF1:![0-9]+]] ; LMUL8: mismatch_vec_loop_preheader: ; LMUL8-NEXT: br label [[MISMATCH_VECTOR_LOOP:%.*]] ; LMUL8: mismatch_vec_loop: ; LMUL8-NEXT: [[MISMATCH_VECTOR_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VECTOR_LOOP_PREHEADER]] ], [ [[TMP24:%.*]], [[MISMATCH_VECTOR_LOOP_INC:%.*]] ] ; LMUL8-NEXT: [[AVL:%.*]] = sub nuw nsw i64 [[TMP2]], [[MISMATCH_VECTOR_INDEX]] ; LMUL8-NEXT: [[TMP19:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 64, i1 true) ; LMUL8-NEXT: [[TMP20:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VECTOR_INDEX]] ; LMUL8-NEXT: [[LHS_LOAD:%.*]] = call @llvm.vp.load.nxv64i8.p0(ptr [[TMP20]], splat (i1 true), i32 [[TMP19]]) ; LMUL8-NEXT: [[TMP21:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VECTOR_INDEX]] ; LMUL8-NEXT: [[RHS_LOAD:%.*]] = call @llvm.vp.load.nxv64i8.p0(ptr [[TMP21]], splat (i1 true), i32 [[TMP19]]) ; LMUL8-NEXT: [[MISMATCH_CMP:%.*]] = icmp ne [[LHS_LOAD]], [[RHS_LOAD]] ; LMUL8-NEXT: [[FIRST:%.*]] = call i32 @llvm.vp.cttz.elts.i32.nxv64i1( [[MISMATCH_CMP]], i1 false, splat (i1 true), i32 [[TMP19]]) ; LMUL8-NEXT: [[TMP22:%.*]] = icmp ne i32 [[FIRST]], [[TMP19]] ; LMUL8-NEXT: br i1 [[TMP22]], label [[MISMATCH_VECTOR_LOOP_FOUND:%.*]], label [[MISMATCH_VECTOR_LOOP_INC]] ; LMUL8: mismatch_vec_loop_inc: ; LMUL8-NEXT: [[TMP23:%.*]] = zext i32 [[TMP19]] to i64 ; LMUL8-NEXT: [[TMP24]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX]], [[TMP23]] ; LMUL8-NEXT: [[TMP25:%.*]] = icmp ne i64 [[TMP24]], [[TMP2]] ; LMUL8-NEXT: br i1 [[TMP25]], label [[MISMATCH_VECTOR_LOOP]], label [[MISMATCH_END:%.*]] ; LMUL8: mismatch_vec_loop_found: ; LMUL8-NEXT: [[FIRST1:%.*]] = phi i32 [ [[FIRST]], [[MISMATCH_VECTOR_LOOP]] ] ; LMUL8-NEXT: [[MISMATCH_VECTOR_INDEX2:%.*]] = phi i64 [ [[MISMATCH_VECTOR_INDEX]], [[MISMATCH_VECTOR_LOOP]] ] ; LMUL8-NEXT: [[TMP26:%.*]] = zext i32 [[FIRST1]] to i64 ; LMUL8-NEXT: [[TMP27:%.*]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX2]], [[TMP26]] ; LMUL8-NEXT: [[TMP28:%.*]] = trunc i64 [[TMP27]] to i32 ; LMUL8-NEXT: br label [[MISMATCH_END]] ; LMUL8: mismatch_loop_pre: ; LMUL8-NEXT: br label [[MISMATCH_LOOP:%.*]] ; LMUL8: mismatch_loop: ; LMUL8-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP35:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; LMUL8-NEXT: [[TMP29:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64 ; LMUL8-NEXT: [[TMP30:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP29]] ; LMUL8-NEXT: [[TMP31:%.*]] = load i8, ptr [[TMP30]], align 1 ; LMUL8-NEXT: [[TMP32:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP29]] ; LMUL8-NEXT: [[TMP33:%.*]] = load i8, ptr [[TMP32]], align 1 ; LMUL8-NEXT: [[TMP34:%.*]] = icmp eq i8 [[TMP31]], [[TMP33]] ; LMUL8-NEXT: br i1 [[TMP34]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]] ; LMUL8: mismatch_loop_inc: ; LMUL8-NEXT: [[TMP35]] = add i32 [[MISMATCH_INDEX]], 1 ; LMUL8-NEXT: [[TMP36:%.*]] = icmp eq i32 [[TMP35]], [[N]] ; LMUL8-NEXT: br i1 [[TMP36]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]] ; LMUL8: mismatch_end: ; LMUL8-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VECTOR_LOOP_INC]] ], [ [[TMP28]], [[MISMATCH_VECTOR_LOOP_FOUND]] ] ; LMUL8-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]] ; LMUL8: while.cond: ; LMUL8-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[MISMATCH_END]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ] ; LMUL8-NEXT: [[INC:%.*]] = add i32 [[LEN_ADDR]], 1 ; LMUL8-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]] ; LMUL8-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; LMUL8: while.body: ; LMUL8-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64 ; LMUL8-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; LMUL8-NEXT: [[TMP37:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; LMUL8-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; LMUL8-NEXT: [[TMP38:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; LMUL8-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP37]], [[TMP38]] ; LMUL8-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; LMUL8: byte.compare: ; LMUL8-NEXT: br label [[WHILE_END]] ; LMUL8: while.end: ; LMUL8-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[WHILE_COND]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ] ; LMUL8-NEXT: ret i32 [[INC_LCSSA]] ; ; LOOP-DEL-LABEL: define i32 @compare_bytes_simple( ; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0:[0-9]+]] { ; LOOP-DEL-NEXT: entry: ; LOOP-DEL-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1 ; LOOP-DEL-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 ; LOOP-DEL-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64 ; LOOP-DEL-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]] ; LOOP-DEL-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0:![0-9]+]] ; LOOP-DEL: mismatch_mem_check: ; LOOP-DEL-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]] ; LOOP-DEL-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]] ; LOOP-DEL-NEXT: [[TMP8:%.*]] = ptrtoint ptr [[TMP5]] to i64 ; LOOP-DEL-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64 ; LOOP-DEL-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]] ; LOOP-DEL-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]] ; LOOP-DEL-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP10]] to i64 ; LOOP-DEL-NEXT: [[TMP14:%.*]] = ptrtoint ptr [[TMP13]] to i64 ; LOOP-DEL-NEXT: [[TMP6:%.*]] = lshr i64 [[TMP7]], 12 ; LOOP-DEL-NEXT: [[TMP9:%.*]] = lshr i64 [[TMP11]], 12 ; LOOP-DEL-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP8]], 12 ; LOOP-DEL-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP14]], 12 ; LOOP-DEL-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP6]], [[TMP9]] ; LOOP-DEL-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP12]], [[TMP15]] ; LOOP-DEL-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]] ; LOOP-DEL-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VECTOR_LOOP:%.*]], !prof [[PROF1:![0-9]+]] ; LOOP-DEL: mismatch_vec_loop: ; LOOP-DEL-NEXT: [[MISMATCH_VECTOR_INDEX:%.*]] = phi i64 [ [[TMP24:%.*]], [[MISMATCH_VECTOR_LOOP_INC:%.*]] ], [ [[TMP1]], [[MISMATCH_MEM_CHECK]] ] ; LOOP-DEL-NEXT: [[AVL:%.*]] = sub nuw nsw i64 [[TMP2]], [[MISMATCH_VECTOR_INDEX]] ; LOOP-DEL-NEXT: [[TMP19:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 16, i1 true) ; LOOP-DEL-NEXT: [[TMP20:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VECTOR_INDEX]] ; LOOP-DEL-NEXT: [[LHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP20]], splat (i1 true), i32 [[TMP19]]) ; LOOP-DEL-NEXT: [[TMP21:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VECTOR_INDEX]] ; LOOP-DEL-NEXT: [[RHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP21]], splat (i1 true), i32 [[TMP19]]) ; LOOP-DEL-NEXT: [[MISMATCH_CMP:%.*]] = icmp ne [[LHS_LOAD]], [[RHS_LOAD]] ; LOOP-DEL-NEXT: [[FIRST:%.*]] = call i32 @llvm.vp.cttz.elts.i32.nxv16i1( [[MISMATCH_CMP]], i1 false, splat (i1 true), i32 [[TMP19]]) ; LOOP-DEL-NEXT: [[TMP22:%.*]] = icmp ne i32 [[FIRST]], [[TMP19]] ; LOOP-DEL-NEXT: br i1 [[TMP22]], label [[MISMATCH_VECTOR_LOOP_FOUND:%.*]], label [[MISMATCH_VECTOR_LOOP_INC]] ; LOOP-DEL: mismatch_vec_loop_inc: ; LOOP-DEL-NEXT: [[TMP23:%.*]] = zext i32 [[TMP19]] to i64 ; LOOP-DEL-NEXT: [[TMP24]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX]], [[TMP23]] ; LOOP-DEL-NEXT: [[TMP25:%.*]] = icmp ne i64 [[TMP24]], [[TMP2]] ; LOOP-DEL-NEXT: br i1 [[TMP25]], label [[MISMATCH_VECTOR_LOOP]], label [[WHILE_END:%.*]] ; LOOP-DEL: mismatch_vec_loop_found: ; LOOP-DEL-NEXT: [[FIRST1:%.*]] = phi i32 [ [[FIRST]], [[MISMATCH_VECTOR_LOOP]] ] ; LOOP-DEL-NEXT: [[MISMATCH_VECTOR_INDEX2:%.*]] = phi i64 [ [[MISMATCH_VECTOR_INDEX]], [[MISMATCH_VECTOR_LOOP]] ] ; LOOP-DEL-NEXT: [[TMP26:%.*]] = zext i32 [[FIRST1]] to i64 ; LOOP-DEL-NEXT: [[TMP27:%.*]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX2]], [[TMP26]] ; LOOP-DEL-NEXT: [[TMP28:%.*]] = trunc i64 [[TMP27]] to i32 ; LOOP-DEL-NEXT: br label [[WHILE_END]] ; LOOP-DEL: mismatch_loop_pre: ; LOOP-DEL-NEXT: br label [[MISMATCH_LOOP:%.*]] ; LOOP-DEL: mismatch_loop: ; LOOP-DEL-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP35:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; LOOP-DEL-NEXT: [[TMP29:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64 ; LOOP-DEL-NEXT: [[TMP30:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP29]] ; LOOP-DEL-NEXT: [[TMP31:%.*]] = load i8, ptr [[TMP30]], align 1 ; LOOP-DEL-NEXT: [[TMP32:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP29]] ; LOOP-DEL-NEXT: [[TMP33:%.*]] = load i8, ptr [[TMP32]], align 1 ; LOOP-DEL-NEXT: [[TMP34:%.*]] = icmp eq i8 [[TMP31]], [[TMP33]] ; LOOP-DEL-NEXT: br i1 [[TMP34]], label [[MISMATCH_LOOP_INC]], label [[WHILE_END]] ; LOOP-DEL: mismatch_loop_inc: ; LOOP-DEL-NEXT: [[TMP35]] = add i32 [[MISMATCH_INDEX]], 1 ; LOOP-DEL-NEXT: [[TMP36:%.*]] = icmp eq i32 [[TMP35]], [[N]] ; LOOP-DEL-NEXT: br i1 [[TMP36]], label [[WHILE_END]], label [[MISMATCH_LOOP]] ; LOOP-DEL: while.end: ; LOOP-DEL-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VECTOR_LOOP_INC]] ], [ [[TMP28]], [[MISMATCH_VECTOR_LOOP_FOUND]] ] ; LOOP-DEL-NEXT: ret i32 [[MISMATCH_RESULT]] ; ; MASKED-LABEL: define i32 @compare_bytes_simple( ; MASKED-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0:[0-9]+]] { ; MASKED-NEXT: entry: ; MASKED-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1 ; MASKED-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]] ; MASKED: mismatch_min_it_check: ; MASKED-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 ; MASKED-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64 ; MASKED-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]] ; MASKED-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0:![0-9]+]] ; MASKED: mismatch_mem_check: ; MASKED-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]] ; MASKED-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]] ; MASKED-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP5]] to i64 ; MASKED-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64 ; MASKED-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]] ; MASKED-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]] ; MASKED-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP8]] to i64 ; MASKED-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP9]] to i64 ; MASKED-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP7]], 12 ; MASKED-NEXT: [[TMP13:%.*]] = lshr i64 [[TMP10]], 12 ; MASKED-NEXT: [[TMP14:%.*]] = lshr i64 [[TMP6]], 12 ; MASKED-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP11]], 12 ; MASKED-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP12]], [[TMP13]] ; MASKED-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP14]], [[TMP15]] ; MASKED-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]] ; MASKED-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VEC_LOOP_PREHEADER:%.*]], !prof [[PROF1:![0-9]+]] ; MASKED: mismatch_vec_loop_preheader: ; MASKED-NEXT: [[TMP19:%.*]] = call @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP1]], i64 [[TMP2]]) ; MASKED-NEXT: [[TMP20:%.*]] = call i64 @llvm.vscale.i64() ; MASKED-NEXT: [[TMP21:%.*]] = mul nuw nsw i64 [[TMP20]], 16 ; MASKED-NEXT: br label [[MISMATCH_VEC_LOOP:%.*]] ; MASKED: mismatch_vec_loop: ; MASKED-NEXT: [[MISMATCH_VEC_LOOP_PRED:%.*]] = phi [ [[TMP19]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP30:%.*]], [[MISMATCH_VEC_LOOP_INC:%.*]] ] ; MASKED-NEXT: [[MISMATCH_VEC_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP29:%.*]], [[MISMATCH_VEC_LOOP_INC]] ] ; MASKED-NEXT: [[TMP22:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VEC_INDEX]] ; MASKED-NEXT: [[TMP23:%.*]] = call @llvm.masked.load.nxv16i8.p0(ptr [[TMP22]], i32 1, [[MISMATCH_VEC_LOOP_PRED]], zeroinitializer) ; MASKED-NEXT: [[TMP24:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VEC_INDEX]] ; MASKED-NEXT: [[TMP25:%.*]] = call @llvm.masked.load.nxv16i8.p0(ptr [[TMP24]], i32 1, [[MISMATCH_VEC_LOOP_PRED]], zeroinitializer) ; MASKED-NEXT: [[TMP26:%.*]] = icmp ne [[TMP23]], [[TMP25]] ; MASKED-NEXT: [[TMP27:%.*]] = select [[MISMATCH_VEC_LOOP_PRED]], [[TMP26]], zeroinitializer ; MASKED-NEXT: [[TMP28:%.*]] = call i1 @llvm.vector.reduce.or.nxv16i1( [[TMP27]]) ; MASKED-NEXT: br i1 [[TMP28]], label [[MISMATCH_VEC_LOOP_FOUND:%.*]], label [[MISMATCH_VEC_LOOP_INC]] ; MASKED: mismatch_vec_loop_inc: ; MASKED-NEXT: [[TMP29]] = add nuw nsw i64 [[MISMATCH_VEC_INDEX]], [[TMP21]] ; MASKED-NEXT: [[TMP30]] = call @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP29]], i64 [[TMP2]]) ; MASKED-NEXT: [[TMP31:%.*]] = extractelement [[TMP30]], i64 0 ; MASKED-NEXT: br i1 [[TMP31]], label [[MISMATCH_VEC_LOOP]], label [[MISMATCH_END:%.*]] ; MASKED: mismatch_vec_loop_found: ; MASKED-NEXT: [[MISMATCH_VEC_FOUND_PRED:%.*]] = phi [ [[TMP27]], [[MISMATCH_VEC_LOOP]] ] ; MASKED-NEXT: [[MISMATCH_VEC_LAST_LOOP_PRED:%.*]] = phi [ [[MISMATCH_VEC_LOOP_PRED]], [[MISMATCH_VEC_LOOP]] ] ; MASKED-NEXT: [[MISMATCH_VEC_FOUND_INDEX:%.*]] = phi i64 [ [[MISMATCH_VEC_INDEX]], [[MISMATCH_VEC_LOOP]] ] ; MASKED-NEXT: [[TMP32:%.*]] = and [[MISMATCH_VEC_LAST_LOOP_PRED]], [[MISMATCH_VEC_FOUND_PRED]] ; MASKED-NEXT: [[TMP33:%.*]] = call i32 @llvm.experimental.cttz.elts.i32.nxv16i1( [[TMP32]], i1 true) ; MASKED-NEXT: [[TMP34:%.*]] = zext i32 [[TMP33]] to i64 ; MASKED-NEXT: [[TMP35:%.*]] = add nuw nsw i64 [[MISMATCH_VEC_FOUND_INDEX]], [[TMP34]] ; MASKED-NEXT: [[TMP36:%.*]] = trunc i64 [[TMP35]] to i32 ; MASKED-NEXT: br label [[MISMATCH_END]] ; MASKED: mismatch_loop_pre: ; MASKED-NEXT: br label [[MISMATCH_LOOP:%.*]] ; MASKED: mismatch_loop: ; MASKED-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP43:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; MASKED-NEXT: [[TMP37:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64 ; MASKED-NEXT: [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP37]] ; MASKED-NEXT: [[TMP39:%.*]] = load i8, ptr [[TMP38]], align 1 ; MASKED-NEXT: [[TMP40:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP37]] ; MASKED-NEXT: [[TMP41:%.*]] = load i8, ptr [[TMP40]], align 1 ; MASKED-NEXT: [[TMP42:%.*]] = icmp eq i8 [[TMP39]], [[TMP41]] ; MASKED-NEXT: br i1 [[TMP42]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]] ; MASKED: mismatch_loop_inc: ; MASKED-NEXT: [[TMP43]] = add i32 [[MISMATCH_INDEX]], 1 ; MASKED-NEXT: [[TMP44:%.*]] = icmp eq i32 [[TMP43]], [[N]] ; MASKED-NEXT: br i1 [[TMP44]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]] ; MASKED: mismatch_end: ; MASKED-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VEC_LOOP_INC]] ], [ [[TMP36]], [[MISMATCH_VEC_LOOP_FOUND]] ] ; MASKED-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]] ; MASKED: while.cond: ; MASKED-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[MISMATCH_END]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ] ; MASKED-NEXT: [[INC:%.*]] = add i32 [[LEN_ADDR]], 1 ; MASKED-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]] ; MASKED-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; MASKED: while.body: ; MASKED-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64 ; MASKED-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; MASKED-NEXT: [[TMP45:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; MASKED-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; MASKED-NEXT: [[TMP46:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; MASKED-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP45]], [[TMP46]] ; MASKED-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; MASKED: byte.compare: ; MASKED-NEXT: br label [[WHILE_END]] ; MASKED: while.end: ; MASKED-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[WHILE_COND]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ] ; MASKED-NEXT: ret i32 [[INC_LCSSA]] ; entry: br label %while.cond while.cond: %len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ] %inc = add i32 %len.addr, 1 %cmp.not = icmp eq i32 %inc, %n br i1 %cmp.not, label %while.end, label %while.body while.body: %idxprom = zext i32 %inc to i64 %arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom %0 = load i8, ptr %arrayidx %arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom %1 = load i8, ptr %arrayidx2 %cmp.not2 = icmp eq i8 %0, %1 br i1 %cmp.not2, label %while.cond, label %while.end while.end: %inc.lcssa = phi i32 [ %inc, %while.body ], [ %inc, %while.cond ] ret i32 %inc.lcssa } define i32 @compare_bytes_signed_wrap(ptr %a, ptr %b, i32 %len, i32 %n) { ; CHECK-LABEL: define i32 @compare_bytes_signed_wrap( ; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1 ; CHECK-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]] ; CHECK: mismatch_min_it_check: ; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 ; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64 ; CHECK-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]] ; CHECK-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]] ; CHECK: mismatch_mem_check: ; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]] ; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]] ; CHECK-NEXT: [[TMP8:%.*]] = ptrtoint ptr [[TMP5]] to i64 ; CHECK-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64 ; CHECK-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]] ; CHECK-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]] ; CHECK-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP10]] to i64 ; CHECK-NEXT: [[TMP14:%.*]] = ptrtoint ptr [[TMP13]] to i64 ; CHECK-NEXT: [[TMP6:%.*]] = lshr i64 [[TMP7]], 12 ; CHECK-NEXT: [[TMP9:%.*]] = lshr i64 [[TMP11]], 12 ; CHECK-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP8]], 12 ; CHECK-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP14]], 12 ; CHECK-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP6]], [[TMP9]] ; CHECK-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP12]], [[TMP15]] ; CHECK-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]] ; CHECK-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VECTOR_LOOP_PREHEADER:%.*]], !prof [[PROF1]] ; CHECK: mismatch_vec_loop_preheader: ; CHECK-NEXT: br label [[MISMATCH_VECTOR_LOOP:%.*]] ; CHECK: mismatch_vec_loop: ; CHECK-NEXT: [[MISMATCH_VECTOR_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VECTOR_LOOP_PREHEADER]] ], [ [[TMP24:%.*]], [[MISMATCH_VECTOR_LOOP_INC:%.*]] ] ; CHECK-NEXT: [[AVL:%.*]] = sub nuw nsw i64 [[TMP2]], [[MISMATCH_VECTOR_INDEX]] ; CHECK-NEXT: [[TMP19:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 16, i1 true) ; CHECK-NEXT: [[TMP20:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VECTOR_INDEX]] ; CHECK-NEXT: [[LHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP20]], splat (i1 true), i32 [[TMP19]]) ; CHECK-NEXT: [[TMP21:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VECTOR_INDEX]] ; CHECK-NEXT: [[RHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP21]], splat (i1 true), i32 [[TMP19]]) ; CHECK-NEXT: [[MISMATCH_CMP:%.*]] = icmp ne [[LHS_LOAD]], [[RHS_LOAD]] ; CHECK-NEXT: [[FIRST:%.*]] = call i32 @llvm.vp.cttz.elts.i32.nxv16i1( [[MISMATCH_CMP]], i1 false, splat (i1 true), i32 [[TMP19]]) ; CHECK-NEXT: [[TMP22:%.*]] = icmp ne i32 [[FIRST]], [[TMP19]] ; CHECK-NEXT: br i1 [[TMP22]], label [[MISMATCH_VECTOR_LOOP_FOUND:%.*]], label [[MISMATCH_VECTOR_LOOP_INC]] ; CHECK: mismatch_vec_loop_inc: ; CHECK-NEXT: [[TMP23:%.*]] = zext i32 [[TMP19]] to i64 ; CHECK-NEXT: [[TMP24]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX]], [[TMP23]] ; CHECK-NEXT: [[TMP25:%.*]] = icmp ne i64 [[TMP24]], [[TMP2]] ; CHECK-NEXT: br i1 [[TMP25]], label [[MISMATCH_VECTOR_LOOP]], label [[MISMATCH_END:%.*]] ; CHECK: mismatch_vec_loop_found: ; CHECK-NEXT: [[FIRST1:%.*]] = phi i32 [ [[FIRST]], [[MISMATCH_VECTOR_LOOP]] ] ; CHECK-NEXT: [[MISMATCH_VECTOR_INDEX2:%.*]] = phi i64 [ [[MISMATCH_VECTOR_INDEX]], [[MISMATCH_VECTOR_LOOP]] ] ; CHECK-NEXT: [[TMP26:%.*]] = zext i32 [[FIRST1]] to i64 ; CHECK-NEXT: [[TMP27:%.*]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX2]], [[TMP26]] ; CHECK-NEXT: [[TMP28:%.*]] = trunc i64 [[TMP27]] to i32 ; CHECK-NEXT: br label [[MISMATCH_END]] ; CHECK: mismatch_loop_pre: ; CHECK-NEXT: br label [[MISMATCH_LOOP:%.*]] ; CHECK: mismatch_loop: ; CHECK-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP35:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; CHECK-NEXT: [[TMP29:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64 ; CHECK-NEXT: [[TMP30:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP29]] ; CHECK-NEXT: [[TMP31:%.*]] = load i8, ptr [[TMP30]], align 1 ; CHECK-NEXT: [[TMP32:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP29]] ; CHECK-NEXT: [[TMP33:%.*]] = load i8, ptr [[TMP32]], align 1 ; CHECK-NEXT: [[TMP34:%.*]] = icmp eq i8 [[TMP31]], [[TMP33]] ; CHECK-NEXT: br i1 [[TMP34]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]] ; CHECK: mismatch_loop_inc: ; CHECK-NEXT: [[TMP35]] = add nsw i32 [[MISMATCH_INDEX]], 1 ; CHECK-NEXT: [[TMP36:%.*]] = icmp eq i32 [[TMP35]], [[N]] ; CHECK-NEXT: br i1 [[TMP36]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]] ; CHECK: mismatch_end: ; CHECK-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VECTOR_LOOP_INC]] ], [ [[TMP28]], [[MISMATCH_VECTOR_LOOP_FOUND]] ] ; CHECK-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]] ; CHECK: while.cond: ; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[MISMATCH_END]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ] ; CHECK-NEXT: [[INC:%.*]] = add nsw i32 [[LEN_ADDR]], 1 ; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]] ; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; CHECK: while.body: ; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64 ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP37:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP38:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP37]], [[TMP38]] ; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; CHECK: byte.compare: ; CHECK-NEXT: br label [[WHILE_END]] ; CHECK: while.end: ; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[WHILE_COND]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ] ; CHECK-NEXT: ret i32 [[INC_LCSSA]] ; ; LMUL8-LABEL: define i32 @compare_bytes_signed_wrap( ; LMUL8-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { ; LMUL8-NEXT: entry: ; LMUL8-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1 ; LMUL8-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]] ; LMUL8: mismatch_min_it_check: ; LMUL8-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 ; LMUL8-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64 ; LMUL8-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]] ; LMUL8-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]] ; LMUL8: mismatch_mem_check: ; LMUL8-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]] ; LMUL8-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]] ; LMUL8-NEXT: [[TMP8:%.*]] = ptrtoint ptr [[TMP5]] to i64 ; LMUL8-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64 ; LMUL8-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]] ; LMUL8-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]] ; LMUL8-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP10]] to i64 ; LMUL8-NEXT: [[TMP14:%.*]] = ptrtoint ptr [[TMP13]] to i64 ; LMUL8-NEXT: [[TMP6:%.*]] = lshr i64 [[TMP7]], 12 ; LMUL8-NEXT: [[TMP9:%.*]] = lshr i64 [[TMP11]], 12 ; LMUL8-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP8]], 12 ; LMUL8-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP14]], 12 ; LMUL8-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP6]], [[TMP9]] ; LMUL8-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP12]], [[TMP15]] ; LMUL8-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]] ; LMUL8-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VECTOR_LOOP_PREHEADER:%.*]], !prof [[PROF1]] ; LMUL8: mismatch_vec_loop_preheader: ; LMUL8-NEXT: br label [[MISMATCH_VECTOR_LOOP:%.*]] ; LMUL8: mismatch_vec_loop: ; LMUL8-NEXT: [[MISMATCH_VECTOR_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VECTOR_LOOP_PREHEADER]] ], [ [[TMP24:%.*]], [[MISMATCH_VECTOR_LOOP_INC:%.*]] ] ; LMUL8-NEXT: [[AVL:%.*]] = sub nuw nsw i64 [[TMP2]], [[MISMATCH_VECTOR_INDEX]] ; LMUL8-NEXT: [[TMP19:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 64, i1 true) ; LMUL8-NEXT: [[TMP20:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VECTOR_INDEX]] ; LMUL8-NEXT: [[LHS_LOAD:%.*]] = call @llvm.vp.load.nxv64i8.p0(ptr [[TMP20]], splat (i1 true), i32 [[TMP19]]) ; LMUL8-NEXT: [[TMP21:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VECTOR_INDEX]] ; LMUL8-NEXT: [[RHS_LOAD:%.*]] = call @llvm.vp.load.nxv64i8.p0(ptr [[TMP21]], splat (i1 true), i32 [[TMP19]]) ; LMUL8-NEXT: [[MISMATCH_CMP:%.*]] = icmp ne [[LHS_LOAD]], [[RHS_LOAD]] ; LMUL8-NEXT: [[FIRST:%.*]] = call i32 @llvm.vp.cttz.elts.i32.nxv64i1( [[MISMATCH_CMP]], i1 false, splat (i1 true), i32 [[TMP19]]) ; LMUL8-NEXT: [[TMP22:%.*]] = icmp ne i32 [[FIRST]], [[TMP19]] ; LMUL8-NEXT: br i1 [[TMP22]], label [[MISMATCH_VECTOR_LOOP_FOUND:%.*]], label [[MISMATCH_VECTOR_LOOP_INC]] ; LMUL8: mismatch_vec_loop_inc: ; LMUL8-NEXT: [[TMP23:%.*]] = zext i32 [[TMP19]] to i64 ; LMUL8-NEXT: [[TMP24]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX]], [[TMP23]] ; LMUL8-NEXT: [[TMP25:%.*]] = icmp ne i64 [[TMP24]], [[TMP2]] ; LMUL8-NEXT: br i1 [[TMP25]], label [[MISMATCH_VECTOR_LOOP]], label [[MISMATCH_END:%.*]] ; LMUL8: mismatch_vec_loop_found: ; LMUL8-NEXT: [[FIRST1:%.*]] = phi i32 [ [[FIRST]], [[MISMATCH_VECTOR_LOOP]] ] ; LMUL8-NEXT: [[MISMATCH_VECTOR_INDEX2:%.*]] = phi i64 [ [[MISMATCH_VECTOR_INDEX]], [[MISMATCH_VECTOR_LOOP]] ] ; LMUL8-NEXT: [[TMP26:%.*]] = zext i32 [[FIRST1]] to i64 ; LMUL8-NEXT: [[TMP27:%.*]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX2]], [[TMP26]] ; LMUL8-NEXT: [[TMP28:%.*]] = trunc i64 [[TMP27]] to i32 ; LMUL8-NEXT: br label [[MISMATCH_END]] ; LMUL8: mismatch_loop_pre: ; LMUL8-NEXT: br label [[MISMATCH_LOOP:%.*]] ; LMUL8: mismatch_loop: ; LMUL8-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP35:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; LMUL8-NEXT: [[TMP29:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64 ; LMUL8-NEXT: [[TMP30:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP29]] ; LMUL8-NEXT: [[TMP31:%.*]] = load i8, ptr [[TMP30]], align 1 ; LMUL8-NEXT: [[TMP32:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP29]] ; LMUL8-NEXT: [[TMP33:%.*]] = load i8, ptr [[TMP32]], align 1 ; LMUL8-NEXT: [[TMP34:%.*]] = icmp eq i8 [[TMP31]], [[TMP33]] ; LMUL8-NEXT: br i1 [[TMP34]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]] ; LMUL8: mismatch_loop_inc: ; LMUL8-NEXT: [[TMP35]] = add nsw i32 [[MISMATCH_INDEX]], 1 ; LMUL8-NEXT: [[TMP36:%.*]] = icmp eq i32 [[TMP35]], [[N]] ; LMUL8-NEXT: br i1 [[TMP36]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]] ; LMUL8: mismatch_end: ; LMUL8-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VECTOR_LOOP_INC]] ], [ [[TMP28]], [[MISMATCH_VECTOR_LOOP_FOUND]] ] ; LMUL8-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]] ; LMUL8: while.cond: ; LMUL8-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[MISMATCH_END]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ] ; LMUL8-NEXT: [[INC:%.*]] = add nsw i32 [[LEN_ADDR]], 1 ; LMUL8-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]] ; LMUL8-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; LMUL8: while.body: ; LMUL8-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64 ; LMUL8-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; LMUL8-NEXT: [[TMP37:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; LMUL8-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; LMUL8-NEXT: [[TMP38:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; LMUL8-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP37]], [[TMP38]] ; LMUL8-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; LMUL8: byte.compare: ; LMUL8-NEXT: br label [[WHILE_END]] ; LMUL8: while.end: ; LMUL8-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[WHILE_COND]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ] ; LMUL8-NEXT: ret i32 [[INC_LCSSA]] ; ; LOOP-DEL-LABEL: define i32 @compare_bytes_signed_wrap( ; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { ; LOOP-DEL-NEXT: entry: ; LOOP-DEL-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1 ; LOOP-DEL-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 ; LOOP-DEL-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64 ; LOOP-DEL-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]] ; LOOP-DEL-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]] ; LOOP-DEL: mismatch_mem_check: ; LOOP-DEL-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]] ; LOOP-DEL-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]] ; LOOP-DEL-NEXT: [[TMP8:%.*]] = ptrtoint ptr [[TMP5]] to i64 ; LOOP-DEL-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64 ; LOOP-DEL-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]] ; LOOP-DEL-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]] ; LOOP-DEL-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP10]] to i64 ; LOOP-DEL-NEXT: [[TMP14:%.*]] = ptrtoint ptr [[TMP13]] to i64 ; LOOP-DEL-NEXT: [[TMP6:%.*]] = lshr i64 [[TMP7]], 12 ; LOOP-DEL-NEXT: [[TMP9:%.*]] = lshr i64 [[TMP11]], 12 ; LOOP-DEL-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP8]], 12 ; LOOP-DEL-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP14]], 12 ; LOOP-DEL-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP6]], [[TMP9]] ; LOOP-DEL-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP12]], [[TMP15]] ; LOOP-DEL-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]] ; LOOP-DEL-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VECTOR_LOOP:%.*]], !prof [[PROF1]] ; LOOP-DEL: mismatch_vec_loop: ; LOOP-DEL-NEXT: [[MISMATCH_VECTOR_INDEX:%.*]] = phi i64 [ [[TMP24:%.*]], [[MISMATCH_VECTOR_LOOP_INC:%.*]] ], [ [[TMP1]], [[MISMATCH_MEM_CHECK]] ] ; LOOP-DEL-NEXT: [[AVL:%.*]] = sub nuw nsw i64 [[TMP2]], [[MISMATCH_VECTOR_INDEX]] ; LOOP-DEL-NEXT: [[TMP19:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 16, i1 true) ; LOOP-DEL-NEXT: [[TMP20:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VECTOR_INDEX]] ; LOOP-DEL-NEXT: [[LHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP20]], splat (i1 true), i32 [[TMP19]]) ; LOOP-DEL-NEXT: [[TMP21:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VECTOR_INDEX]] ; LOOP-DEL-NEXT: [[RHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP21]], splat (i1 true), i32 [[TMP19]]) ; LOOP-DEL-NEXT: [[MISMATCH_CMP:%.*]] = icmp ne [[LHS_LOAD]], [[RHS_LOAD]] ; LOOP-DEL-NEXT: [[FIRST:%.*]] = call i32 @llvm.vp.cttz.elts.i32.nxv16i1( [[MISMATCH_CMP]], i1 false, splat (i1 true), i32 [[TMP19]]) ; LOOP-DEL-NEXT: [[TMP22:%.*]] = icmp ne i32 [[FIRST]], [[TMP19]] ; LOOP-DEL-NEXT: br i1 [[TMP22]], label [[MISMATCH_VECTOR_LOOP_FOUND:%.*]], label [[MISMATCH_VECTOR_LOOP_INC]] ; LOOP-DEL: mismatch_vec_loop_inc: ; LOOP-DEL-NEXT: [[TMP23:%.*]] = zext i32 [[TMP19]] to i64 ; LOOP-DEL-NEXT: [[TMP24]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX]], [[TMP23]] ; LOOP-DEL-NEXT: [[TMP25:%.*]] = icmp ne i64 [[TMP24]], [[TMP2]] ; LOOP-DEL-NEXT: br i1 [[TMP25]], label [[MISMATCH_VECTOR_LOOP]], label [[WHILE_END:%.*]] ; LOOP-DEL: mismatch_vec_loop_found: ; LOOP-DEL-NEXT: [[FIRST1:%.*]] = phi i32 [ [[FIRST]], [[MISMATCH_VECTOR_LOOP]] ] ; LOOP-DEL-NEXT: [[MISMATCH_VECTOR_INDEX2:%.*]] = phi i64 [ [[MISMATCH_VECTOR_INDEX]], [[MISMATCH_VECTOR_LOOP]] ] ; LOOP-DEL-NEXT: [[TMP26:%.*]] = zext i32 [[FIRST1]] to i64 ; LOOP-DEL-NEXT: [[TMP27:%.*]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX2]], [[TMP26]] ; LOOP-DEL-NEXT: [[TMP28:%.*]] = trunc i64 [[TMP27]] to i32 ; LOOP-DEL-NEXT: br label [[WHILE_END]] ; LOOP-DEL: mismatch_loop_pre: ; LOOP-DEL-NEXT: br label [[MISMATCH_LOOP:%.*]] ; LOOP-DEL: mismatch_loop: ; LOOP-DEL-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP35:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; LOOP-DEL-NEXT: [[TMP29:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64 ; LOOP-DEL-NEXT: [[TMP30:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP29]] ; LOOP-DEL-NEXT: [[TMP31:%.*]] = load i8, ptr [[TMP30]], align 1 ; LOOP-DEL-NEXT: [[TMP32:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP29]] ; LOOP-DEL-NEXT: [[TMP33:%.*]] = load i8, ptr [[TMP32]], align 1 ; LOOP-DEL-NEXT: [[TMP34:%.*]] = icmp eq i8 [[TMP31]], [[TMP33]] ; LOOP-DEL-NEXT: br i1 [[TMP34]], label [[MISMATCH_LOOP_INC]], label [[WHILE_END]] ; LOOP-DEL: mismatch_loop_inc: ; LOOP-DEL-NEXT: [[TMP35]] = add nsw i32 [[MISMATCH_INDEX]], 1 ; LOOP-DEL-NEXT: [[TMP36:%.*]] = icmp eq i32 [[TMP35]], [[N]] ; LOOP-DEL-NEXT: br i1 [[TMP36]], label [[WHILE_END]], label [[MISMATCH_LOOP]] ; LOOP-DEL: while.end: ; LOOP-DEL-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VECTOR_LOOP_INC]] ], [ [[TMP28]], [[MISMATCH_VECTOR_LOOP_FOUND]] ] ; LOOP-DEL-NEXT: ret i32 [[MISMATCH_RESULT]] ; ; MASKED-LABEL: define i32 @compare_bytes_signed_wrap( ; MASKED-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { ; MASKED-NEXT: entry: ; MASKED-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1 ; MASKED-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]] ; MASKED: mismatch_min_it_check: ; MASKED-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 ; MASKED-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64 ; MASKED-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]] ; MASKED-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]] ; MASKED: mismatch_mem_check: ; MASKED-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]] ; MASKED-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]] ; MASKED-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP5]] to i64 ; MASKED-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64 ; MASKED-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]] ; MASKED-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]] ; MASKED-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP8]] to i64 ; MASKED-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP9]] to i64 ; MASKED-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP7]], 12 ; MASKED-NEXT: [[TMP13:%.*]] = lshr i64 [[TMP10]], 12 ; MASKED-NEXT: [[TMP14:%.*]] = lshr i64 [[TMP6]], 12 ; MASKED-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP11]], 12 ; MASKED-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP12]], [[TMP13]] ; MASKED-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP14]], [[TMP15]] ; MASKED-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]] ; MASKED-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VEC_LOOP_PREHEADER:%.*]], !prof [[PROF1]] ; MASKED: mismatch_vec_loop_preheader: ; MASKED-NEXT: [[TMP19:%.*]] = call @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP1]], i64 [[TMP2]]) ; MASKED-NEXT: [[TMP20:%.*]] = call i64 @llvm.vscale.i64() ; MASKED-NEXT: [[TMP21:%.*]] = mul nuw nsw i64 [[TMP20]], 16 ; MASKED-NEXT: br label [[MISMATCH_VEC_LOOP:%.*]] ; MASKED: mismatch_vec_loop: ; MASKED-NEXT: [[MISMATCH_VEC_LOOP_PRED:%.*]] = phi [ [[TMP19]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP30:%.*]], [[MISMATCH_VEC_LOOP_INC:%.*]] ] ; MASKED-NEXT: [[MISMATCH_VEC_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP29:%.*]], [[MISMATCH_VEC_LOOP_INC]] ] ; MASKED-NEXT: [[TMP22:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VEC_INDEX]] ; MASKED-NEXT: [[TMP23:%.*]] = call @llvm.masked.load.nxv16i8.p0(ptr [[TMP22]], i32 1, [[MISMATCH_VEC_LOOP_PRED]], zeroinitializer) ; MASKED-NEXT: [[TMP24:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VEC_INDEX]] ; MASKED-NEXT: [[TMP25:%.*]] = call @llvm.masked.load.nxv16i8.p0(ptr [[TMP24]], i32 1, [[MISMATCH_VEC_LOOP_PRED]], zeroinitializer) ; MASKED-NEXT: [[TMP26:%.*]] = icmp ne [[TMP23]], [[TMP25]] ; MASKED-NEXT: [[TMP27:%.*]] = select [[MISMATCH_VEC_LOOP_PRED]], [[TMP26]], zeroinitializer ; MASKED-NEXT: [[TMP28:%.*]] = call i1 @llvm.vector.reduce.or.nxv16i1( [[TMP27]]) ; MASKED-NEXT: br i1 [[TMP28]], label [[MISMATCH_VEC_LOOP_FOUND:%.*]], label [[MISMATCH_VEC_LOOP_INC]] ; MASKED: mismatch_vec_loop_inc: ; MASKED-NEXT: [[TMP29]] = add nuw nsw i64 [[MISMATCH_VEC_INDEX]], [[TMP21]] ; MASKED-NEXT: [[TMP30]] = call @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP29]], i64 [[TMP2]]) ; MASKED-NEXT: [[TMP31:%.*]] = extractelement [[TMP30]], i64 0 ; MASKED-NEXT: br i1 [[TMP31]], label [[MISMATCH_VEC_LOOP]], label [[MISMATCH_END:%.*]] ; MASKED: mismatch_vec_loop_found: ; MASKED-NEXT: [[MISMATCH_VEC_FOUND_PRED:%.*]] = phi [ [[TMP27]], [[MISMATCH_VEC_LOOP]] ] ; MASKED-NEXT: [[MISMATCH_VEC_LAST_LOOP_PRED:%.*]] = phi [ [[MISMATCH_VEC_LOOP_PRED]], [[MISMATCH_VEC_LOOP]] ] ; MASKED-NEXT: [[MISMATCH_VEC_FOUND_INDEX:%.*]] = phi i64 [ [[MISMATCH_VEC_INDEX]], [[MISMATCH_VEC_LOOP]] ] ; MASKED-NEXT: [[TMP32:%.*]] = and [[MISMATCH_VEC_LAST_LOOP_PRED]], [[MISMATCH_VEC_FOUND_PRED]] ; MASKED-NEXT: [[TMP33:%.*]] = call i32 @llvm.experimental.cttz.elts.i32.nxv16i1( [[TMP32]], i1 true) ; MASKED-NEXT: [[TMP34:%.*]] = zext i32 [[TMP33]] to i64 ; MASKED-NEXT: [[TMP35:%.*]] = add nuw nsw i64 [[MISMATCH_VEC_FOUND_INDEX]], [[TMP34]] ; MASKED-NEXT: [[TMP36:%.*]] = trunc i64 [[TMP35]] to i32 ; MASKED-NEXT: br label [[MISMATCH_END]] ; MASKED: mismatch_loop_pre: ; MASKED-NEXT: br label [[MISMATCH_LOOP:%.*]] ; MASKED: mismatch_loop: ; MASKED-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP43:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; MASKED-NEXT: [[TMP37:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64 ; MASKED-NEXT: [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP37]] ; MASKED-NEXT: [[TMP39:%.*]] = load i8, ptr [[TMP38]], align 1 ; MASKED-NEXT: [[TMP40:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP37]] ; MASKED-NEXT: [[TMP41:%.*]] = load i8, ptr [[TMP40]], align 1 ; MASKED-NEXT: [[TMP42:%.*]] = icmp eq i8 [[TMP39]], [[TMP41]] ; MASKED-NEXT: br i1 [[TMP42]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]] ; MASKED: mismatch_loop_inc: ; MASKED-NEXT: [[TMP43]] = add nsw i32 [[MISMATCH_INDEX]], 1 ; MASKED-NEXT: [[TMP44:%.*]] = icmp eq i32 [[TMP43]], [[N]] ; MASKED-NEXT: br i1 [[TMP44]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]] ; MASKED: mismatch_end: ; MASKED-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VEC_LOOP_INC]] ], [ [[TMP36]], [[MISMATCH_VEC_LOOP_FOUND]] ] ; MASKED-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]] ; MASKED: while.cond: ; MASKED-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[MISMATCH_END]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ] ; MASKED-NEXT: [[INC:%.*]] = add nsw i32 [[LEN_ADDR]], 1 ; MASKED-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]] ; MASKED-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; MASKED: while.body: ; MASKED-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64 ; MASKED-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; MASKED-NEXT: [[TMP45:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; MASKED-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; MASKED-NEXT: [[TMP46:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; MASKED-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP45]], [[TMP46]] ; MASKED-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; MASKED: byte.compare: ; MASKED-NEXT: br label [[WHILE_END]] ; MASKED: while.end: ; MASKED-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[WHILE_COND]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ] ; MASKED-NEXT: ret i32 [[INC_LCSSA]] ; ; NO-TRANSFORM-LABEL: define i32 @compare_bytes_signed_wrap( ; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) { ; NO-TRANSFORM-NEXT: entry: ; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]] ; NO-TRANSFORM: while.cond: ; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ] ; NO-TRANSFORM-NEXT: [[INC]] = add nsw i32 [[LEN_ADDR]], 1 ; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]] ; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; NO-TRANSFORM: while.body: ; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64 ; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]] ; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; NO-TRANSFORM: while.end: ; NO-TRANSFORM-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ] ; NO-TRANSFORM-NEXT: ret i32 [[INC_LCSSA]] entry: br label %while.cond while.cond: %len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ] %inc = add nsw i32 %len.addr, 1 %cmp.not = icmp eq i32 %inc, %n br i1 %cmp.not, label %while.end, label %while.body while.body: %idxprom = zext i32 %inc to i64 %arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom %0 = load i8, ptr %arrayidx %arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom %1 = load i8, ptr %arrayidx2 %cmp.not2 = icmp eq i8 %0, %1 br i1 %cmp.not2, label %while.cond, label %while.end while.end: %inc.lcssa = phi i32 [ %inc, %while.body ], [ %inc, %while.cond ] ret i32 %inc.lcssa } define i32 @compare_bytes_simple_end_ne_found(ptr %a, ptr %b, ptr %c, ptr %d, i32 %len, i32 %n) { ; CHECK-LABEL: define i32 @compare_bytes_simple_end_ne_found( ; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], ptr [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1 ; CHECK-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]] ; CHECK: mismatch_min_it_check: ; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 ; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64 ; CHECK-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]] ; CHECK-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]] ; CHECK: mismatch_mem_check: ; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]] ; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]] ; CHECK-NEXT: [[TMP8:%.*]] = ptrtoint ptr [[TMP5]] to i64 ; CHECK-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64 ; CHECK-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]] ; CHECK-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]] ; CHECK-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP10]] to i64 ; CHECK-NEXT: [[TMP14:%.*]] = ptrtoint ptr [[TMP13]] to i64 ; CHECK-NEXT: [[TMP6:%.*]] = lshr i64 [[TMP7]], 12 ; CHECK-NEXT: [[TMP9:%.*]] = lshr i64 [[TMP11]], 12 ; CHECK-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP8]], 12 ; CHECK-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP14]], 12 ; CHECK-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP6]], [[TMP9]] ; CHECK-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP12]], [[TMP15]] ; CHECK-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]] ; CHECK-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VECTOR_LOOP_PREHEADER:%.*]], !prof [[PROF1]] ; CHECK: mismatch_vec_loop_preheader: ; CHECK-NEXT: br label [[MISMATCH_VECTOR_LOOP:%.*]] ; CHECK: mismatch_vec_loop: ; CHECK-NEXT: [[MISMATCH_VECTOR_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VECTOR_LOOP_PREHEADER]] ], [ [[TMP24:%.*]], [[MISMATCH_VECTOR_LOOP_INC:%.*]] ] ; CHECK-NEXT: [[AVL:%.*]] = sub nuw nsw i64 [[TMP2]], [[MISMATCH_VECTOR_INDEX]] ; CHECK-NEXT: [[TMP19:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 16, i1 true) ; CHECK-NEXT: [[TMP20:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VECTOR_INDEX]] ; CHECK-NEXT: [[LHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP20]], splat (i1 true), i32 [[TMP19]]) ; CHECK-NEXT: [[TMP21:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VECTOR_INDEX]] ; CHECK-NEXT: [[RHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP21]], splat (i1 true), i32 [[TMP19]]) ; CHECK-NEXT: [[MISMATCH_CMP:%.*]] = icmp ne [[LHS_LOAD]], [[RHS_LOAD]] ; CHECK-NEXT: [[FIRST:%.*]] = call i32 @llvm.vp.cttz.elts.i32.nxv16i1( [[MISMATCH_CMP]], i1 false, splat (i1 true), i32 [[TMP19]]) ; CHECK-NEXT: [[TMP22:%.*]] = icmp ne i32 [[FIRST]], [[TMP19]] ; CHECK-NEXT: br i1 [[TMP22]], label [[MISMATCH_VECTOR_LOOP_FOUND:%.*]], label [[MISMATCH_VECTOR_LOOP_INC]] ; CHECK: mismatch_vec_loop_inc: ; CHECK-NEXT: [[TMP23:%.*]] = zext i32 [[TMP19]] to i64 ; CHECK-NEXT: [[TMP24]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX]], [[TMP23]] ; CHECK-NEXT: [[TMP25:%.*]] = icmp ne i64 [[TMP24]], [[TMP2]] ; CHECK-NEXT: br i1 [[TMP25]], label [[MISMATCH_VECTOR_LOOP]], label [[MISMATCH_END:%.*]] ; CHECK: mismatch_vec_loop_found: ; CHECK-NEXT: [[FIRST1:%.*]] = phi i32 [ [[FIRST]], [[MISMATCH_VECTOR_LOOP]] ] ; CHECK-NEXT: [[MISMATCH_VECTOR_INDEX2:%.*]] = phi i64 [ [[MISMATCH_VECTOR_INDEX]], [[MISMATCH_VECTOR_LOOP]] ] ; CHECK-NEXT: [[TMP26:%.*]] = zext i32 [[FIRST1]] to i64 ; CHECK-NEXT: [[TMP27:%.*]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX2]], [[TMP26]] ; CHECK-NEXT: [[TMP28:%.*]] = trunc i64 [[TMP27]] to i32 ; CHECK-NEXT: br label [[MISMATCH_END]] ; CHECK: mismatch_loop_pre: ; CHECK-NEXT: br label [[MISMATCH_LOOP:%.*]] ; CHECK: mismatch_loop: ; CHECK-NEXT: [[MISMATCH_INDEX3:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP35:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; CHECK-NEXT: [[TMP29:%.*]] = zext i32 [[MISMATCH_INDEX3]] to i64 ; CHECK-NEXT: [[TMP30:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP29]] ; CHECK-NEXT: [[TMP31:%.*]] = load i8, ptr [[TMP30]], align 1 ; CHECK-NEXT: [[TMP32:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP29]] ; CHECK-NEXT: [[TMP33:%.*]] = load i8, ptr [[TMP32]], align 1 ; CHECK-NEXT: [[TMP34:%.*]] = icmp eq i8 [[TMP31]], [[TMP33]] ; CHECK-NEXT: br i1 [[TMP34]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]] ; CHECK: mismatch_loop_inc: ; CHECK-NEXT: [[TMP35]] = add i32 [[MISMATCH_INDEX3]], 1 ; CHECK-NEXT: [[TMP36:%.*]] = icmp eq i32 [[TMP35]], [[N]] ; CHECK-NEXT: br i1 [[TMP36]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]] ; CHECK: mismatch_end: ; CHECK-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX3]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VECTOR_LOOP_INC]] ], [ [[TMP28]], [[MISMATCH_VECTOR_LOOP_FOUND]] ] ; CHECK-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]] ; CHECK: while.cond: ; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[MISMATCH_END]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ] ; CHECK-NEXT: [[INC:%.*]] = add i32 [[LEN_ADDR]], 1 ; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]] ; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; CHECK: while.body: ; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64 ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP37:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP38:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP37]], [[TMP38]] ; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_FOUND:%.*]] ; CHECK: while.found: ; CHECK-NEXT: [[MISMATCH_INDEX1:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ] ; CHECK-NEXT: [[FOUND_PTR:%.*]] = phi ptr [ [[C]], [[WHILE_BODY]] ], [ [[C]], [[BYTE_COMPARE]] ] ; CHECK-NEXT: br label [[END:%.*]] ; CHECK: byte.compare: ; CHECK-NEXT: [[TMP39:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]] ; CHECK-NEXT: br i1 [[TMP39]], label [[WHILE_END]], label [[WHILE_FOUND]] ; CHECK: while.end: ; CHECK-NEXT: [[MISMATCH_INDEX2:%.*]] = phi i32 [ [[N]], [[WHILE_COND]] ], [ [[N]], [[BYTE_COMPARE]] ] ; CHECK-NEXT: [[END_PTR:%.*]] = phi ptr [ [[D]], [[WHILE_COND]] ], [ [[D]], [[BYTE_COMPARE]] ] ; CHECK-NEXT: br label [[END]] ; CHECK: end: ; CHECK-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[MISMATCH_INDEX1]], [[WHILE_FOUND]] ], [ [[MISMATCH_INDEX2]], [[WHILE_END]] ] ; CHECK-NEXT: [[STORE_PTR:%.*]] = phi ptr [ [[END_PTR]], [[WHILE_END]] ], [ [[FOUND_PTR]], [[WHILE_FOUND]] ] ; CHECK-NEXT: store i32 [[MISMATCH_INDEX]], ptr [[STORE_PTR]], align 4 ; CHECK-NEXT: ret i32 [[MISMATCH_INDEX]] ; ; LMUL8-LABEL: define i32 @compare_bytes_simple_end_ne_found( ; LMUL8-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], ptr [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { ; LMUL8-NEXT: entry: ; LMUL8-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1 ; LMUL8-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]] ; LMUL8: mismatch_min_it_check: ; LMUL8-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 ; LMUL8-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64 ; LMUL8-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]] ; LMUL8-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]] ; LMUL8: mismatch_mem_check: ; LMUL8-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]] ; LMUL8-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]] ; LMUL8-NEXT: [[TMP8:%.*]] = ptrtoint ptr [[TMP5]] to i64 ; LMUL8-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64 ; LMUL8-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]] ; LMUL8-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]] ; LMUL8-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP10]] to i64 ; LMUL8-NEXT: [[TMP14:%.*]] = ptrtoint ptr [[TMP13]] to i64 ; LMUL8-NEXT: [[TMP6:%.*]] = lshr i64 [[TMP7]], 12 ; LMUL8-NEXT: [[TMP9:%.*]] = lshr i64 [[TMP11]], 12 ; LMUL8-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP8]], 12 ; LMUL8-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP14]], 12 ; LMUL8-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP6]], [[TMP9]] ; LMUL8-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP12]], [[TMP15]] ; LMUL8-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]] ; LMUL8-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VECTOR_LOOP_PREHEADER:%.*]], !prof [[PROF1]] ; LMUL8: mismatch_vec_loop_preheader: ; LMUL8-NEXT: br label [[MISMATCH_VECTOR_LOOP:%.*]] ; LMUL8: mismatch_vec_loop: ; LMUL8-NEXT: [[MISMATCH_VECTOR_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VECTOR_LOOP_PREHEADER]] ], [ [[TMP24:%.*]], [[MISMATCH_VECTOR_LOOP_INC:%.*]] ] ; LMUL8-NEXT: [[AVL:%.*]] = sub nuw nsw i64 [[TMP2]], [[MISMATCH_VECTOR_INDEX]] ; LMUL8-NEXT: [[TMP19:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 64, i1 true) ; LMUL8-NEXT: [[TMP20:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VECTOR_INDEX]] ; LMUL8-NEXT: [[LHS_LOAD:%.*]] = call @llvm.vp.load.nxv64i8.p0(ptr [[TMP20]], splat (i1 true), i32 [[TMP19]]) ; LMUL8-NEXT: [[TMP21:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VECTOR_INDEX]] ; LMUL8-NEXT: [[RHS_LOAD:%.*]] = call @llvm.vp.load.nxv64i8.p0(ptr [[TMP21]], splat (i1 true), i32 [[TMP19]]) ; LMUL8-NEXT: [[MISMATCH_CMP:%.*]] = icmp ne [[LHS_LOAD]], [[RHS_LOAD]] ; LMUL8-NEXT: [[FIRST:%.*]] = call i32 @llvm.vp.cttz.elts.i32.nxv64i1( [[MISMATCH_CMP]], i1 false, splat (i1 true), i32 [[TMP19]]) ; LMUL8-NEXT: [[TMP22:%.*]] = icmp ne i32 [[FIRST]], [[TMP19]] ; LMUL8-NEXT: br i1 [[TMP22]], label [[MISMATCH_VECTOR_LOOP_FOUND:%.*]], label [[MISMATCH_VECTOR_LOOP_INC]] ; LMUL8: mismatch_vec_loop_inc: ; LMUL8-NEXT: [[TMP23:%.*]] = zext i32 [[TMP19]] to i64 ; LMUL8-NEXT: [[TMP24]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX]], [[TMP23]] ; LMUL8-NEXT: [[TMP25:%.*]] = icmp ne i64 [[TMP24]], [[TMP2]] ; LMUL8-NEXT: br i1 [[TMP25]], label [[MISMATCH_VECTOR_LOOP]], label [[MISMATCH_END:%.*]] ; LMUL8: mismatch_vec_loop_found: ; LMUL8-NEXT: [[FIRST1:%.*]] = phi i32 [ [[FIRST]], [[MISMATCH_VECTOR_LOOP]] ] ; LMUL8-NEXT: [[MISMATCH_VECTOR_INDEX2:%.*]] = phi i64 [ [[MISMATCH_VECTOR_INDEX]], [[MISMATCH_VECTOR_LOOP]] ] ; LMUL8-NEXT: [[TMP26:%.*]] = zext i32 [[FIRST1]] to i64 ; LMUL8-NEXT: [[TMP27:%.*]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX2]], [[TMP26]] ; LMUL8-NEXT: [[TMP28:%.*]] = trunc i64 [[TMP27]] to i32 ; LMUL8-NEXT: br label [[MISMATCH_END]] ; LMUL8: mismatch_loop_pre: ; LMUL8-NEXT: br label [[MISMATCH_LOOP:%.*]] ; LMUL8: mismatch_loop: ; LMUL8-NEXT: [[MISMATCH_INDEX3:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP35:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; LMUL8-NEXT: [[TMP29:%.*]] = zext i32 [[MISMATCH_INDEX3]] to i64 ; LMUL8-NEXT: [[TMP30:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP29]] ; LMUL8-NEXT: [[TMP31:%.*]] = load i8, ptr [[TMP30]], align 1 ; LMUL8-NEXT: [[TMP32:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP29]] ; LMUL8-NEXT: [[TMP33:%.*]] = load i8, ptr [[TMP32]], align 1 ; LMUL8-NEXT: [[TMP34:%.*]] = icmp eq i8 [[TMP31]], [[TMP33]] ; LMUL8-NEXT: br i1 [[TMP34]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]] ; LMUL8: mismatch_loop_inc: ; LMUL8-NEXT: [[TMP35]] = add i32 [[MISMATCH_INDEX3]], 1 ; LMUL8-NEXT: [[TMP36:%.*]] = icmp eq i32 [[TMP35]], [[N]] ; LMUL8-NEXT: br i1 [[TMP36]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]] ; LMUL8: mismatch_end: ; LMUL8-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX3]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VECTOR_LOOP_INC]] ], [ [[TMP28]], [[MISMATCH_VECTOR_LOOP_FOUND]] ] ; LMUL8-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]] ; LMUL8: while.cond: ; LMUL8-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[MISMATCH_END]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ] ; LMUL8-NEXT: [[INC:%.*]] = add i32 [[LEN_ADDR]], 1 ; LMUL8-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]] ; LMUL8-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; LMUL8: while.body: ; LMUL8-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64 ; LMUL8-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; LMUL8-NEXT: [[TMP37:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; LMUL8-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; LMUL8-NEXT: [[TMP38:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; LMUL8-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP37]], [[TMP38]] ; LMUL8-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_FOUND:%.*]] ; LMUL8: while.found: ; LMUL8-NEXT: [[MISMATCH_INDEX1:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ] ; LMUL8-NEXT: [[FOUND_PTR:%.*]] = phi ptr [ [[C]], [[WHILE_BODY]] ], [ [[C]], [[BYTE_COMPARE]] ] ; LMUL8-NEXT: br label [[END:%.*]] ; LMUL8: byte.compare: ; LMUL8-NEXT: [[TMP39:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]] ; LMUL8-NEXT: br i1 [[TMP39]], label [[WHILE_END]], label [[WHILE_FOUND]] ; LMUL8: while.end: ; LMUL8-NEXT: [[MISMATCH_INDEX2:%.*]] = phi i32 [ [[N]], [[WHILE_COND]] ], [ [[N]], [[BYTE_COMPARE]] ] ; LMUL8-NEXT: [[END_PTR:%.*]] = phi ptr [ [[D]], [[WHILE_COND]] ], [ [[D]], [[BYTE_COMPARE]] ] ; LMUL8-NEXT: br label [[END]] ; LMUL8: end: ; LMUL8-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[MISMATCH_INDEX1]], [[WHILE_FOUND]] ], [ [[MISMATCH_INDEX2]], [[WHILE_END]] ] ; LMUL8-NEXT: [[STORE_PTR:%.*]] = phi ptr [ [[END_PTR]], [[WHILE_END]] ], [ [[FOUND_PTR]], [[WHILE_FOUND]] ] ; LMUL8-NEXT: store i32 [[MISMATCH_INDEX]], ptr [[STORE_PTR]], align 4 ; LMUL8-NEXT: ret i32 [[MISMATCH_INDEX]] ; ; LOOP-DEL-LABEL: define i32 @compare_bytes_simple_end_ne_found( ; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], ptr [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { ; LOOP-DEL-NEXT: entry: ; LOOP-DEL-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1 ; LOOP-DEL-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 ; LOOP-DEL-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64 ; LOOP-DEL-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]] ; LOOP-DEL-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]] ; LOOP-DEL: mismatch_mem_check: ; LOOP-DEL-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]] ; LOOP-DEL-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]] ; LOOP-DEL-NEXT: [[TMP8:%.*]] = ptrtoint ptr [[TMP5]] to i64 ; LOOP-DEL-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64 ; LOOP-DEL-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]] ; LOOP-DEL-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]] ; LOOP-DEL-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP10]] to i64 ; LOOP-DEL-NEXT: [[TMP14:%.*]] = ptrtoint ptr [[TMP13]] to i64 ; LOOP-DEL-NEXT: [[TMP6:%.*]] = lshr i64 [[TMP7]], 12 ; LOOP-DEL-NEXT: [[TMP9:%.*]] = lshr i64 [[TMP11]], 12 ; LOOP-DEL-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP8]], 12 ; LOOP-DEL-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP14]], 12 ; LOOP-DEL-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP6]], [[TMP9]] ; LOOP-DEL-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP12]], [[TMP15]] ; LOOP-DEL-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]] ; LOOP-DEL-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VECTOR_LOOP:%.*]], !prof [[PROF1]] ; LOOP-DEL: mismatch_vec_loop: ; LOOP-DEL-NEXT: [[MISMATCH_VECTOR_INDEX:%.*]] = phi i64 [ [[TMP24:%.*]], [[MISMATCH_VECTOR_LOOP_INC:%.*]] ], [ [[TMP1]], [[MISMATCH_MEM_CHECK]] ] ; LOOP-DEL-NEXT: [[AVL:%.*]] = sub nuw nsw i64 [[TMP2]], [[MISMATCH_VECTOR_INDEX]] ; LOOP-DEL-NEXT: [[TMP19:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 16, i1 true) ; LOOP-DEL-NEXT: [[TMP20:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VECTOR_INDEX]] ; LOOP-DEL-NEXT: [[LHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP20]], splat (i1 true), i32 [[TMP19]]) ; LOOP-DEL-NEXT: [[TMP21:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VECTOR_INDEX]] ; LOOP-DEL-NEXT: [[RHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP21]], splat (i1 true), i32 [[TMP19]]) ; LOOP-DEL-NEXT: [[MISMATCH_CMP:%.*]] = icmp ne [[LHS_LOAD]], [[RHS_LOAD]] ; LOOP-DEL-NEXT: [[FIRST:%.*]] = call i32 @llvm.vp.cttz.elts.i32.nxv16i1( [[MISMATCH_CMP]], i1 false, splat (i1 true), i32 [[TMP19]]) ; LOOP-DEL-NEXT: [[TMP22:%.*]] = icmp ne i32 [[FIRST]], [[TMP19]] ; LOOP-DEL-NEXT: br i1 [[TMP22]], label [[MISMATCH_VECTOR_LOOP_FOUND:%.*]], label [[MISMATCH_VECTOR_LOOP_INC]] ; LOOP-DEL: mismatch_vec_loop_inc: ; LOOP-DEL-NEXT: [[TMP23:%.*]] = zext i32 [[TMP19]] to i64 ; LOOP-DEL-NEXT: [[TMP24]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX]], [[TMP23]] ; LOOP-DEL-NEXT: [[TMP25:%.*]] = icmp ne i64 [[TMP24]], [[TMP2]] ; LOOP-DEL-NEXT: br i1 [[TMP25]], label [[MISMATCH_VECTOR_LOOP]], label [[BYTE_COMPARE:%.*]] ; LOOP-DEL: mismatch_vec_loop_found: ; LOOP-DEL-NEXT: [[FIRST1:%.*]] = phi i32 [ [[FIRST]], [[MISMATCH_VECTOR_LOOP]] ] ; LOOP-DEL-NEXT: [[MISMATCH_VECTOR_INDEX2:%.*]] = phi i64 [ [[MISMATCH_VECTOR_INDEX]], [[MISMATCH_VECTOR_LOOP]] ] ; LOOP-DEL-NEXT: [[TMP26:%.*]] = zext i32 [[FIRST1]] to i64 ; LOOP-DEL-NEXT: [[TMP27:%.*]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX2]], [[TMP26]] ; LOOP-DEL-NEXT: [[TMP28:%.*]] = trunc i64 [[TMP27]] to i32 ; LOOP-DEL-NEXT: br label [[BYTE_COMPARE]] ; LOOP-DEL: mismatch_loop_pre: ; LOOP-DEL-NEXT: br label [[MISMATCH_LOOP:%.*]] ; LOOP-DEL: mismatch_loop: ; LOOP-DEL-NEXT: [[MISMATCH_INDEX3:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP35:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; LOOP-DEL-NEXT: [[TMP29:%.*]] = zext i32 [[MISMATCH_INDEX3]] to i64 ; LOOP-DEL-NEXT: [[TMP30:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP29]] ; LOOP-DEL-NEXT: [[TMP31:%.*]] = load i8, ptr [[TMP30]], align 1 ; LOOP-DEL-NEXT: [[TMP32:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP29]] ; LOOP-DEL-NEXT: [[TMP33:%.*]] = load i8, ptr [[TMP32]], align 1 ; LOOP-DEL-NEXT: [[TMP34:%.*]] = icmp eq i8 [[TMP31]], [[TMP33]] ; LOOP-DEL-NEXT: br i1 [[TMP34]], label [[MISMATCH_LOOP_INC]], label [[BYTE_COMPARE]] ; LOOP-DEL: mismatch_loop_inc: ; LOOP-DEL-NEXT: [[TMP35]] = add i32 [[MISMATCH_INDEX3]], 1 ; LOOP-DEL-NEXT: [[TMP36:%.*]] = icmp eq i32 [[TMP35]], [[N]] ; LOOP-DEL-NEXT: br i1 [[TMP36]], label [[BYTE_COMPARE]], label [[MISMATCH_LOOP]] ; LOOP-DEL: byte.compare: ; LOOP-DEL-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX3]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VECTOR_LOOP_INC]] ], [ [[TMP28]], [[MISMATCH_VECTOR_LOOP_FOUND]] ] ; LOOP-DEL-NEXT: [[TMP37:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]] ; LOOP-DEL-NEXT: [[SPEC_SELECT:%.*]] = select i1 [[TMP37]], i32 [[N]], i32 [[MISMATCH_RESULT]] ; LOOP-DEL-NEXT: [[SPEC_SELECT4:%.*]] = select i1 [[TMP37]], ptr [[D]], ptr [[C]] ; LOOP-DEL-NEXT: store i32 [[SPEC_SELECT]], ptr [[SPEC_SELECT4]], align 4 ; LOOP-DEL-NEXT: ret i32 [[SPEC_SELECT]] ; ; MASKED-LABEL: define i32 @compare_bytes_simple_end_ne_found( ; MASKED-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], ptr [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { ; MASKED-NEXT: entry: ; MASKED-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1 ; MASKED-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]] ; MASKED: mismatch_min_it_check: ; MASKED-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 ; MASKED-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64 ; MASKED-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]] ; MASKED-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]] ; MASKED: mismatch_mem_check: ; MASKED-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]] ; MASKED-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]] ; MASKED-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP5]] to i64 ; MASKED-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64 ; MASKED-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]] ; MASKED-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]] ; MASKED-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP8]] to i64 ; MASKED-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP9]] to i64 ; MASKED-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP7]], 12 ; MASKED-NEXT: [[TMP13:%.*]] = lshr i64 [[TMP10]], 12 ; MASKED-NEXT: [[TMP14:%.*]] = lshr i64 [[TMP6]], 12 ; MASKED-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP11]], 12 ; MASKED-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP12]], [[TMP13]] ; MASKED-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP14]], [[TMP15]] ; MASKED-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]] ; MASKED-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VEC_LOOP_PREHEADER:%.*]], !prof [[PROF1]] ; MASKED: mismatch_vec_loop_preheader: ; MASKED-NEXT: [[TMP19:%.*]] = call @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP1]], i64 [[TMP2]]) ; MASKED-NEXT: [[TMP20:%.*]] = call i64 @llvm.vscale.i64() ; MASKED-NEXT: [[TMP21:%.*]] = mul nuw nsw i64 [[TMP20]], 16 ; MASKED-NEXT: br label [[MISMATCH_VEC_LOOP:%.*]] ; MASKED: mismatch_vec_loop: ; MASKED-NEXT: [[MISMATCH_VEC_LOOP_PRED:%.*]] = phi [ [[TMP19]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP30:%.*]], [[MISMATCH_VEC_LOOP_INC:%.*]] ] ; MASKED-NEXT: [[MISMATCH_VEC_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP29:%.*]], [[MISMATCH_VEC_LOOP_INC]] ] ; MASKED-NEXT: [[TMP22:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VEC_INDEX]] ; MASKED-NEXT: [[TMP23:%.*]] = call @llvm.masked.load.nxv16i8.p0(ptr [[TMP22]], i32 1, [[MISMATCH_VEC_LOOP_PRED]], zeroinitializer) ; MASKED-NEXT: [[TMP24:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VEC_INDEX]] ; MASKED-NEXT: [[TMP25:%.*]] = call @llvm.masked.load.nxv16i8.p0(ptr [[TMP24]], i32 1, [[MISMATCH_VEC_LOOP_PRED]], zeroinitializer) ; MASKED-NEXT: [[TMP26:%.*]] = icmp ne [[TMP23]], [[TMP25]] ; MASKED-NEXT: [[TMP27:%.*]] = select [[MISMATCH_VEC_LOOP_PRED]], [[TMP26]], zeroinitializer ; MASKED-NEXT: [[TMP28:%.*]] = call i1 @llvm.vector.reduce.or.nxv16i1( [[TMP27]]) ; MASKED-NEXT: br i1 [[TMP28]], label [[MISMATCH_VEC_LOOP_FOUND:%.*]], label [[MISMATCH_VEC_LOOP_INC]] ; MASKED: mismatch_vec_loop_inc: ; MASKED-NEXT: [[TMP29]] = add nuw nsw i64 [[MISMATCH_VEC_INDEX]], [[TMP21]] ; MASKED-NEXT: [[TMP30]] = call @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP29]], i64 [[TMP2]]) ; MASKED-NEXT: [[TMP31:%.*]] = extractelement [[TMP30]], i64 0 ; MASKED-NEXT: br i1 [[TMP31]], label [[MISMATCH_VEC_LOOP]], label [[MISMATCH_END:%.*]] ; MASKED: mismatch_vec_loop_found: ; MASKED-NEXT: [[MISMATCH_VEC_FOUND_PRED:%.*]] = phi [ [[TMP27]], [[MISMATCH_VEC_LOOP]] ] ; MASKED-NEXT: [[MISMATCH_VEC_LAST_LOOP_PRED:%.*]] = phi [ [[MISMATCH_VEC_LOOP_PRED]], [[MISMATCH_VEC_LOOP]] ] ; MASKED-NEXT: [[MISMATCH_VEC_FOUND_INDEX:%.*]] = phi i64 [ [[MISMATCH_VEC_INDEX]], [[MISMATCH_VEC_LOOP]] ] ; MASKED-NEXT: [[TMP32:%.*]] = and [[MISMATCH_VEC_LAST_LOOP_PRED]], [[MISMATCH_VEC_FOUND_PRED]] ; MASKED-NEXT: [[TMP33:%.*]] = call i32 @llvm.experimental.cttz.elts.i32.nxv16i1( [[TMP32]], i1 true) ; MASKED-NEXT: [[TMP34:%.*]] = zext i32 [[TMP33]] to i64 ; MASKED-NEXT: [[TMP35:%.*]] = add nuw nsw i64 [[MISMATCH_VEC_FOUND_INDEX]], [[TMP34]] ; MASKED-NEXT: [[TMP36:%.*]] = trunc i64 [[TMP35]] to i32 ; MASKED-NEXT: br label [[MISMATCH_END]] ; MASKED: mismatch_loop_pre: ; MASKED-NEXT: br label [[MISMATCH_LOOP:%.*]] ; MASKED: mismatch_loop: ; MASKED-NEXT: [[MISMATCH_INDEX3:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP43:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; MASKED-NEXT: [[TMP37:%.*]] = zext i32 [[MISMATCH_INDEX3]] to i64 ; MASKED-NEXT: [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP37]] ; MASKED-NEXT: [[TMP39:%.*]] = load i8, ptr [[TMP38]], align 1 ; MASKED-NEXT: [[TMP40:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP37]] ; MASKED-NEXT: [[TMP41:%.*]] = load i8, ptr [[TMP40]], align 1 ; MASKED-NEXT: [[TMP42:%.*]] = icmp eq i8 [[TMP39]], [[TMP41]] ; MASKED-NEXT: br i1 [[TMP42]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]] ; MASKED: mismatch_loop_inc: ; MASKED-NEXT: [[TMP43]] = add i32 [[MISMATCH_INDEX3]], 1 ; MASKED-NEXT: [[TMP44:%.*]] = icmp eq i32 [[TMP43]], [[N]] ; MASKED-NEXT: br i1 [[TMP44]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]] ; MASKED: mismatch_end: ; MASKED-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX3]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VEC_LOOP_INC]] ], [ [[TMP36]], [[MISMATCH_VEC_LOOP_FOUND]] ] ; MASKED-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]] ; MASKED: while.cond: ; MASKED-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[MISMATCH_END]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ] ; MASKED-NEXT: [[INC:%.*]] = add i32 [[LEN_ADDR]], 1 ; MASKED-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]] ; MASKED-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; MASKED: while.body: ; MASKED-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64 ; MASKED-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; MASKED-NEXT: [[TMP45:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; MASKED-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; MASKED-NEXT: [[TMP46:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; MASKED-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP45]], [[TMP46]] ; MASKED-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_FOUND:%.*]] ; MASKED: while.found: ; MASKED-NEXT: [[MISMATCH_INDEX1:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ] ; MASKED-NEXT: [[FOUND_PTR:%.*]] = phi ptr [ [[C]], [[WHILE_BODY]] ], [ [[C]], [[BYTE_COMPARE]] ] ; MASKED-NEXT: br label [[END:%.*]] ; MASKED: byte.compare: ; MASKED-NEXT: [[TMP47:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]] ; MASKED-NEXT: br i1 [[TMP47]], label [[WHILE_END]], label [[WHILE_FOUND]] ; MASKED: while.end: ; MASKED-NEXT: [[MISMATCH_INDEX2:%.*]] = phi i32 [ [[N]], [[WHILE_COND]] ], [ [[N]], [[BYTE_COMPARE]] ] ; MASKED-NEXT: [[END_PTR:%.*]] = phi ptr [ [[D]], [[WHILE_COND]] ], [ [[D]], [[BYTE_COMPARE]] ] ; MASKED-NEXT: br label [[END]] ; MASKED: end: ; MASKED-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[MISMATCH_INDEX1]], [[WHILE_FOUND]] ], [ [[MISMATCH_INDEX2]], [[WHILE_END]] ] ; MASKED-NEXT: [[STORE_PTR:%.*]] = phi ptr [ [[END_PTR]], [[WHILE_END]] ], [ [[FOUND_PTR]], [[WHILE_FOUND]] ] ; MASKED-NEXT: store i32 [[MISMATCH_INDEX]], ptr [[STORE_PTR]], align 4 ; MASKED-NEXT: ret i32 [[MISMATCH_INDEX]] ; ; NO-TRANSFORM-LABEL: define i32 @compare_bytes_simple_end_ne_found( ; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], ptr [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) { ; NO-TRANSFORM-NEXT: entry: ; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]] ; NO-TRANSFORM: while.cond: ; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ] ; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1 ; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]] ; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; NO-TRANSFORM: while.body: ; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64 ; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]] ; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_FOUND:%.*]] ; NO-TRANSFORM: while.found: ; NO-TRANSFORM-NEXT: [[MISMATCH_INDEX1:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ] ; NO-TRANSFORM-NEXT: [[FOUND_PTR:%.*]] = phi ptr [ [[C]], [[WHILE_BODY]] ] ; NO-TRANSFORM-NEXT: br label [[END:%.*]] ; NO-TRANSFORM: while.end: ; NO-TRANSFORM-NEXT: [[MISMATCH_INDEX2:%.*]] = phi i32 [ [[N]], [[WHILE_COND]] ] ; NO-TRANSFORM-NEXT: [[END_PTR:%.*]] = phi ptr [ [[D]], [[WHILE_COND]] ] ; NO-TRANSFORM-NEXT: br label [[END]] ; NO-TRANSFORM: end: ; NO-TRANSFORM-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[MISMATCH_INDEX1]], [[WHILE_FOUND]] ], [ [[MISMATCH_INDEX2]], [[WHILE_END]] ] ; NO-TRANSFORM-NEXT: [[STORE_PTR:%.*]] = phi ptr [ [[END_PTR]], [[WHILE_END]] ], [ [[FOUND_PTR]], [[WHILE_FOUND]] ] ; NO-TRANSFORM-NEXT: store i32 [[MISMATCH_INDEX]], ptr [[STORE_PTR]], align 4 ; NO-TRANSFORM-NEXT: ret i32 [[MISMATCH_INDEX]] entry: br label %while.cond while.cond: %len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ] %inc = add i32 %len.addr, 1 %cmp.not = icmp eq i32 %inc, %n br i1 %cmp.not, label %while.end, label %while.body while.body: %idxprom = zext i32 %inc to i64 %arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom %0 = load i8, ptr %arrayidx %arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom %1 = load i8, ptr %arrayidx2 %cmp.not2 = icmp eq i8 %0, %1 br i1 %cmp.not2, label %while.cond, label %while.found while.found: %mismatch_index1 = phi i32 [ %inc, %while.body ] %found_ptr = phi ptr [ %c, %while.body ] br label %end while.end: %mismatch_index2 = phi i32 [ %n, %while.cond ] %end_ptr = phi ptr [ %d, %while.cond ] br label %end end: %mismatch_index = phi i32 [ %mismatch_index1, %while.found ], [ %mismatch_index2, %while.end ] %store_ptr = phi ptr [ %end_ptr, %while.end ], [ %found_ptr, %while.found ] store i32 %mismatch_index, ptr %store_ptr ret i32 %mismatch_index } define i32 @compare_bytes_extra_cmp(ptr %a, ptr %b, i32 %len, i32 %n, i32 %x) { ; CHECK-LABEL: define i32 @compare_bytes_extra_cmp( ; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]], i32 [[X:%.*]]) #[[ATTR0]] { ; CHECK-NEXT: entry: ; CHECK-NEXT: [[CMP_X:%.*]] = icmp ult i32 [[N]], [[X]] ; CHECK-NEXT: br i1 [[CMP_X]], label [[PH:%.*]], label [[WHILE_END:%.*]] ; CHECK: ph: ; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1 ; CHECK-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]] ; CHECK: mismatch_min_it_check: ; CHECK-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 ; CHECK-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64 ; CHECK-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]] ; CHECK-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]] ; CHECK: mismatch_mem_check: ; CHECK-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]] ; CHECK-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]] ; CHECK-NEXT: [[TMP8:%.*]] = ptrtoint ptr [[TMP5]] to i64 ; CHECK-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64 ; CHECK-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]] ; CHECK-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]] ; CHECK-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP10]] to i64 ; CHECK-NEXT: [[TMP14:%.*]] = ptrtoint ptr [[TMP13]] to i64 ; CHECK-NEXT: [[TMP6:%.*]] = lshr i64 [[TMP7]], 12 ; CHECK-NEXT: [[TMP9:%.*]] = lshr i64 [[TMP11]], 12 ; CHECK-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP8]], 12 ; CHECK-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP14]], 12 ; CHECK-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP6]], [[TMP9]] ; CHECK-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP12]], [[TMP15]] ; CHECK-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]] ; CHECK-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VECTOR_LOOP_PREHEADER:%.*]], !prof [[PROF1]] ; CHECK: mismatch_vec_loop_preheader: ; CHECK-NEXT: br label [[MISMATCH_VECTOR_LOOP:%.*]] ; CHECK: mismatch_vec_loop: ; CHECK-NEXT: [[MISMATCH_VECTOR_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VECTOR_LOOP_PREHEADER]] ], [ [[TMP24:%.*]], [[MISMATCH_VECTOR_LOOP_INC:%.*]] ] ; CHECK-NEXT: [[AVL:%.*]] = sub nuw nsw i64 [[TMP2]], [[MISMATCH_VECTOR_INDEX]] ; CHECK-NEXT: [[TMP19:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 16, i1 true) ; CHECK-NEXT: [[TMP20:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VECTOR_INDEX]] ; CHECK-NEXT: [[LHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP20]], splat (i1 true), i32 [[TMP19]]) ; CHECK-NEXT: [[TMP21:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VECTOR_INDEX]] ; CHECK-NEXT: [[RHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP21]], splat (i1 true), i32 [[TMP19]]) ; CHECK-NEXT: [[MISMATCH_CMP:%.*]] = icmp ne [[LHS_LOAD]], [[RHS_LOAD]] ; CHECK-NEXT: [[FIRST:%.*]] = call i32 @llvm.vp.cttz.elts.i32.nxv16i1( [[MISMATCH_CMP]], i1 false, splat (i1 true), i32 [[TMP19]]) ; CHECK-NEXT: [[TMP22:%.*]] = icmp ne i32 [[FIRST]], [[TMP19]] ; CHECK-NEXT: br i1 [[TMP22]], label [[MISMATCH_VECTOR_LOOP_FOUND:%.*]], label [[MISMATCH_VECTOR_LOOP_INC]] ; CHECK: mismatch_vec_loop_inc: ; CHECK-NEXT: [[TMP23:%.*]] = zext i32 [[TMP19]] to i64 ; CHECK-NEXT: [[TMP24]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX]], [[TMP23]] ; CHECK-NEXT: [[TMP25:%.*]] = icmp ne i64 [[TMP24]], [[TMP2]] ; CHECK-NEXT: br i1 [[TMP25]], label [[MISMATCH_VECTOR_LOOP]], label [[MISMATCH_END:%.*]] ; CHECK: mismatch_vec_loop_found: ; CHECK-NEXT: [[FIRST2:%.*]] = phi i32 [ [[FIRST]], [[MISMATCH_VECTOR_LOOP]] ] ; CHECK-NEXT: [[MISMATCH_VECTOR_INDEX3:%.*]] = phi i64 [ [[MISMATCH_VECTOR_INDEX]], [[MISMATCH_VECTOR_LOOP]] ] ; CHECK-NEXT: [[TMP26:%.*]] = zext i32 [[FIRST2]] to i64 ; CHECK-NEXT: [[TMP27:%.*]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX3]], [[TMP26]] ; CHECK-NEXT: [[TMP28:%.*]] = trunc i64 [[TMP27]] to i32 ; CHECK-NEXT: br label [[MISMATCH_END]] ; CHECK: mismatch_loop_pre: ; CHECK-NEXT: br label [[MISMATCH_LOOP:%.*]] ; CHECK: mismatch_loop: ; CHECK-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP35:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; CHECK-NEXT: [[TMP29:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64 ; CHECK-NEXT: [[TMP30:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP29]] ; CHECK-NEXT: [[TMP31:%.*]] = load i8, ptr [[TMP30]], align 1 ; CHECK-NEXT: [[TMP32:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP29]] ; CHECK-NEXT: [[TMP33:%.*]] = load i8, ptr [[TMP32]], align 1 ; CHECK-NEXT: [[TMP34:%.*]] = icmp eq i8 [[TMP31]], [[TMP33]] ; CHECK-NEXT: br i1 [[TMP34]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]] ; CHECK: mismatch_loop_inc: ; CHECK-NEXT: [[TMP35]] = add i32 [[MISMATCH_INDEX]], 1 ; CHECK-NEXT: [[TMP36:%.*]] = icmp eq i32 [[TMP35]], [[N]] ; CHECK-NEXT: br i1 [[TMP36]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]] ; CHECK: mismatch_end: ; CHECK-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VECTOR_LOOP_INC]] ], [ [[TMP28]], [[MISMATCH_VECTOR_LOOP_FOUND]] ] ; CHECK-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]] ; CHECK: while.cond: ; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[MISMATCH_END]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ] ; CHECK-NEXT: [[INC:%.*]] = add i32 [[LEN_ADDR]], 1 ; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]] ; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END_LOOPEXIT:%.*]], label [[WHILE_BODY]] ; CHECK: while.body: ; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64 ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP37:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP38:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP37]], [[TMP38]] ; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END_LOOPEXIT]] ; CHECK: byte.compare: ; CHECK-NEXT: br label [[WHILE_END_LOOPEXIT]] ; CHECK: while.end.loopexit: ; CHECK-NEXT: [[INC_LCSSA1:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_COND]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ] ; CHECK-NEXT: br label [[WHILE_END]] ; CHECK: while.end: ; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[X]], [[ENTRY:%.*]] ], [ [[INC_LCSSA1]], [[WHILE_END_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[INC_LCSSA]] ; ; LMUL8-LABEL: define i32 @compare_bytes_extra_cmp( ; LMUL8-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]], i32 [[X:%.*]]) #[[ATTR0]] { ; LMUL8-NEXT: entry: ; LMUL8-NEXT: [[CMP_X:%.*]] = icmp ult i32 [[N]], [[X]] ; LMUL8-NEXT: br i1 [[CMP_X]], label [[PH:%.*]], label [[WHILE_END:%.*]] ; LMUL8: ph: ; LMUL8-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1 ; LMUL8-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]] ; LMUL8: mismatch_min_it_check: ; LMUL8-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 ; LMUL8-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64 ; LMUL8-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]] ; LMUL8-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]] ; LMUL8: mismatch_mem_check: ; LMUL8-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]] ; LMUL8-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]] ; LMUL8-NEXT: [[TMP8:%.*]] = ptrtoint ptr [[TMP5]] to i64 ; LMUL8-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64 ; LMUL8-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]] ; LMUL8-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]] ; LMUL8-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP10]] to i64 ; LMUL8-NEXT: [[TMP14:%.*]] = ptrtoint ptr [[TMP13]] to i64 ; LMUL8-NEXT: [[TMP6:%.*]] = lshr i64 [[TMP7]], 12 ; LMUL8-NEXT: [[TMP9:%.*]] = lshr i64 [[TMP11]], 12 ; LMUL8-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP8]], 12 ; LMUL8-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP14]], 12 ; LMUL8-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP6]], [[TMP9]] ; LMUL8-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP12]], [[TMP15]] ; LMUL8-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]] ; LMUL8-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VECTOR_LOOP_PREHEADER:%.*]], !prof [[PROF1]] ; LMUL8: mismatch_vec_loop_preheader: ; LMUL8-NEXT: br label [[MISMATCH_VECTOR_LOOP:%.*]] ; LMUL8: mismatch_vec_loop: ; LMUL8-NEXT: [[MISMATCH_VECTOR_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VECTOR_LOOP_PREHEADER]] ], [ [[TMP24:%.*]], [[MISMATCH_VECTOR_LOOP_INC:%.*]] ] ; LMUL8-NEXT: [[AVL:%.*]] = sub nuw nsw i64 [[TMP2]], [[MISMATCH_VECTOR_INDEX]] ; LMUL8-NEXT: [[TMP19:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 64, i1 true) ; LMUL8-NEXT: [[TMP20:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VECTOR_INDEX]] ; LMUL8-NEXT: [[LHS_LOAD:%.*]] = call @llvm.vp.load.nxv64i8.p0(ptr [[TMP20]], splat (i1 true), i32 [[TMP19]]) ; LMUL8-NEXT: [[TMP21:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VECTOR_INDEX]] ; LMUL8-NEXT: [[RHS_LOAD:%.*]] = call @llvm.vp.load.nxv64i8.p0(ptr [[TMP21]], splat (i1 true), i32 [[TMP19]]) ; LMUL8-NEXT: [[MISMATCH_CMP:%.*]] = icmp ne [[LHS_LOAD]], [[RHS_LOAD]] ; LMUL8-NEXT: [[FIRST:%.*]] = call i32 @llvm.vp.cttz.elts.i32.nxv64i1( [[MISMATCH_CMP]], i1 false, splat (i1 true), i32 [[TMP19]]) ; LMUL8-NEXT: [[TMP22:%.*]] = icmp ne i32 [[FIRST]], [[TMP19]] ; LMUL8-NEXT: br i1 [[TMP22]], label [[MISMATCH_VECTOR_LOOP_FOUND:%.*]], label [[MISMATCH_VECTOR_LOOP_INC]] ; LMUL8: mismatch_vec_loop_inc: ; LMUL8-NEXT: [[TMP23:%.*]] = zext i32 [[TMP19]] to i64 ; LMUL8-NEXT: [[TMP24]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX]], [[TMP23]] ; LMUL8-NEXT: [[TMP25:%.*]] = icmp ne i64 [[TMP24]], [[TMP2]] ; LMUL8-NEXT: br i1 [[TMP25]], label [[MISMATCH_VECTOR_LOOP]], label [[MISMATCH_END:%.*]] ; LMUL8: mismatch_vec_loop_found: ; LMUL8-NEXT: [[FIRST2:%.*]] = phi i32 [ [[FIRST]], [[MISMATCH_VECTOR_LOOP]] ] ; LMUL8-NEXT: [[MISMATCH_VECTOR_INDEX3:%.*]] = phi i64 [ [[MISMATCH_VECTOR_INDEX]], [[MISMATCH_VECTOR_LOOP]] ] ; LMUL8-NEXT: [[TMP26:%.*]] = zext i32 [[FIRST2]] to i64 ; LMUL8-NEXT: [[TMP27:%.*]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX3]], [[TMP26]] ; LMUL8-NEXT: [[TMP28:%.*]] = trunc i64 [[TMP27]] to i32 ; LMUL8-NEXT: br label [[MISMATCH_END]] ; LMUL8: mismatch_loop_pre: ; LMUL8-NEXT: br label [[MISMATCH_LOOP:%.*]] ; LMUL8: mismatch_loop: ; LMUL8-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP35:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; LMUL8-NEXT: [[TMP29:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64 ; LMUL8-NEXT: [[TMP30:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP29]] ; LMUL8-NEXT: [[TMP31:%.*]] = load i8, ptr [[TMP30]], align 1 ; LMUL8-NEXT: [[TMP32:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP29]] ; LMUL8-NEXT: [[TMP33:%.*]] = load i8, ptr [[TMP32]], align 1 ; LMUL8-NEXT: [[TMP34:%.*]] = icmp eq i8 [[TMP31]], [[TMP33]] ; LMUL8-NEXT: br i1 [[TMP34]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]] ; LMUL8: mismatch_loop_inc: ; LMUL8-NEXT: [[TMP35]] = add i32 [[MISMATCH_INDEX]], 1 ; LMUL8-NEXT: [[TMP36:%.*]] = icmp eq i32 [[TMP35]], [[N]] ; LMUL8-NEXT: br i1 [[TMP36]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]] ; LMUL8: mismatch_end: ; LMUL8-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VECTOR_LOOP_INC]] ], [ [[TMP28]], [[MISMATCH_VECTOR_LOOP_FOUND]] ] ; LMUL8-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]] ; LMUL8: while.cond: ; LMUL8-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[MISMATCH_END]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ] ; LMUL8-NEXT: [[INC:%.*]] = add i32 [[LEN_ADDR]], 1 ; LMUL8-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]] ; LMUL8-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END_LOOPEXIT:%.*]], label [[WHILE_BODY]] ; LMUL8: while.body: ; LMUL8-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64 ; LMUL8-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; LMUL8-NEXT: [[TMP37:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; LMUL8-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; LMUL8-NEXT: [[TMP38:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; LMUL8-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP37]], [[TMP38]] ; LMUL8-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END_LOOPEXIT]] ; LMUL8: byte.compare: ; LMUL8-NEXT: br label [[WHILE_END_LOOPEXIT]] ; LMUL8: while.end.loopexit: ; LMUL8-NEXT: [[INC_LCSSA1:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_COND]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ] ; LMUL8-NEXT: br label [[WHILE_END]] ; LMUL8: while.end: ; LMUL8-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[X]], [[ENTRY:%.*]] ], [ [[INC_LCSSA1]], [[WHILE_END_LOOPEXIT]] ] ; LMUL8-NEXT: ret i32 [[INC_LCSSA]] ; ; LOOP-DEL-LABEL: define i32 @compare_bytes_extra_cmp( ; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]], i32 [[X:%.*]]) #[[ATTR0]] { ; LOOP-DEL-NEXT: entry: ; LOOP-DEL-NEXT: [[CMP_X:%.*]] = icmp ult i32 [[N]], [[X]] ; LOOP-DEL-NEXT: br i1 [[CMP_X]], label [[PH:%.*]], label [[WHILE_END:%.*]] ; LOOP-DEL: ph: ; LOOP-DEL-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1 ; LOOP-DEL-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 ; LOOP-DEL-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64 ; LOOP-DEL-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]] ; LOOP-DEL-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]] ; LOOP-DEL: mismatch_mem_check: ; LOOP-DEL-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]] ; LOOP-DEL-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]] ; LOOP-DEL-NEXT: [[TMP8:%.*]] = ptrtoint ptr [[TMP5]] to i64 ; LOOP-DEL-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64 ; LOOP-DEL-NEXT: [[TMP10:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]] ; LOOP-DEL-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]] ; LOOP-DEL-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP10]] to i64 ; LOOP-DEL-NEXT: [[TMP14:%.*]] = ptrtoint ptr [[TMP13]] to i64 ; LOOP-DEL-NEXT: [[TMP6:%.*]] = lshr i64 [[TMP7]], 12 ; LOOP-DEL-NEXT: [[TMP9:%.*]] = lshr i64 [[TMP11]], 12 ; LOOP-DEL-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP8]], 12 ; LOOP-DEL-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP14]], 12 ; LOOP-DEL-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP6]], [[TMP9]] ; LOOP-DEL-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP12]], [[TMP15]] ; LOOP-DEL-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]] ; LOOP-DEL-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VECTOR_LOOP:%.*]], !prof [[PROF1]] ; LOOP-DEL: mismatch_vec_loop: ; LOOP-DEL-NEXT: [[MISMATCH_VECTOR_INDEX:%.*]] = phi i64 [ [[TMP24:%.*]], [[MISMATCH_VECTOR_LOOP_INC:%.*]] ], [ [[TMP1]], [[MISMATCH_MEM_CHECK]] ] ; LOOP-DEL-NEXT: [[AVL:%.*]] = sub nuw nsw i64 [[TMP2]], [[MISMATCH_VECTOR_INDEX]] ; LOOP-DEL-NEXT: [[TMP19:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 16, i1 true) ; LOOP-DEL-NEXT: [[TMP20:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VECTOR_INDEX]] ; LOOP-DEL-NEXT: [[LHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP20]], splat (i1 true), i32 [[TMP19]]) ; LOOP-DEL-NEXT: [[TMP21:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VECTOR_INDEX]] ; LOOP-DEL-NEXT: [[RHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP21]], splat (i1 true), i32 [[TMP19]]) ; LOOP-DEL-NEXT: [[MISMATCH_CMP:%.*]] = icmp ne [[LHS_LOAD]], [[RHS_LOAD]] ; LOOP-DEL-NEXT: [[FIRST:%.*]] = call i32 @llvm.vp.cttz.elts.i32.nxv16i1( [[MISMATCH_CMP]], i1 false, splat (i1 true), i32 [[TMP19]]) ; LOOP-DEL-NEXT: [[TMP22:%.*]] = icmp ne i32 [[FIRST]], [[TMP19]] ; LOOP-DEL-NEXT: br i1 [[TMP22]], label [[MISMATCH_VECTOR_LOOP_FOUND:%.*]], label [[MISMATCH_VECTOR_LOOP_INC]] ; LOOP-DEL: mismatch_vec_loop_inc: ; LOOP-DEL-NEXT: [[TMP23:%.*]] = zext i32 [[TMP19]] to i64 ; LOOP-DEL-NEXT: [[TMP24]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX]], [[TMP23]] ; LOOP-DEL-NEXT: [[TMP25:%.*]] = icmp ne i64 [[TMP24]], [[TMP2]] ; LOOP-DEL-NEXT: br i1 [[TMP25]], label [[MISMATCH_VECTOR_LOOP]], label [[WHILE_END]] ; LOOP-DEL: mismatch_vec_loop_found: ; LOOP-DEL-NEXT: [[FIRST2:%.*]] = phi i32 [ [[FIRST]], [[MISMATCH_VECTOR_LOOP]] ] ; LOOP-DEL-NEXT: [[MISMATCH_VECTOR_INDEX3:%.*]] = phi i64 [ [[MISMATCH_VECTOR_INDEX]], [[MISMATCH_VECTOR_LOOP]] ] ; LOOP-DEL-NEXT: [[TMP26:%.*]] = zext i32 [[FIRST2]] to i64 ; LOOP-DEL-NEXT: [[TMP27:%.*]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX3]], [[TMP26]] ; LOOP-DEL-NEXT: [[TMP28:%.*]] = trunc i64 [[TMP27]] to i32 ; LOOP-DEL-NEXT: br label [[WHILE_END]] ; LOOP-DEL: mismatch_loop_pre: ; LOOP-DEL-NEXT: br label [[MISMATCH_LOOP:%.*]] ; LOOP-DEL: mismatch_loop: ; LOOP-DEL-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP35:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; LOOP-DEL-NEXT: [[TMP29:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64 ; LOOP-DEL-NEXT: [[TMP30:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP29]] ; LOOP-DEL-NEXT: [[TMP31:%.*]] = load i8, ptr [[TMP30]], align 1 ; LOOP-DEL-NEXT: [[TMP32:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP29]] ; LOOP-DEL-NEXT: [[TMP33:%.*]] = load i8, ptr [[TMP32]], align 1 ; LOOP-DEL-NEXT: [[TMP34:%.*]] = icmp eq i8 [[TMP31]], [[TMP33]] ; LOOP-DEL-NEXT: br i1 [[TMP34]], label [[MISMATCH_LOOP_INC]], label [[WHILE_END]] ; LOOP-DEL: mismatch_loop_inc: ; LOOP-DEL-NEXT: [[TMP35]] = add i32 [[MISMATCH_INDEX]], 1 ; LOOP-DEL-NEXT: [[TMP36:%.*]] = icmp eq i32 [[TMP35]], [[N]] ; LOOP-DEL-NEXT: br i1 [[TMP36]], label [[WHILE_END]], label [[MISMATCH_LOOP]] ; LOOP-DEL: while.end: ; LOOP-DEL-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[X]], [[ENTRY:%.*]] ], [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VECTOR_LOOP_INC]] ], [ [[TMP28]], [[MISMATCH_VECTOR_LOOP_FOUND]] ] ; LOOP-DEL-NEXT: ret i32 [[INC_LCSSA]] ; ; MASKED-LABEL: define i32 @compare_bytes_extra_cmp( ; MASKED-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]], i32 [[X:%.*]]) #[[ATTR0]] { ; MASKED-NEXT: entry: ; MASKED-NEXT: [[CMP_X:%.*]] = icmp ult i32 [[N]], [[X]] ; MASKED-NEXT: br i1 [[CMP_X]], label [[PH:%.*]], label [[WHILE_END:%.*]] ; MASKED: ph: ; MASKED-NEXT: [[TMP0:%.*]] = add i32 [[LEN]], 1 ; MASKED-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]] ; MASKED: mismatch_min_it_check: ; MASKED-NEXT: [[TMP1:%.*]] = zext i32 [[TMP0]] to i64 ; MASKED-NEXT: [[TMP2:%.*]] = zext i32 [[N]] to i64 ; MASKED-NEXT: [[TMP3:%.*]] = icmp ule i32 [[TMP0]], [[N]] ; MASKED-NEXT: br i1 [[TMP3]], label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]] ; MASKED: mismatch_mem_check: ; MASKED-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP1]] ; MASKED-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP1]] ; MASKED-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP5]] to i64 ; MASKED-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP4]] to i64 ; MASKED-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[A]], i64 [[TMP2]] ; MASKED-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[B]], i64 [[TMP2]] ; MASKED-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP8]] to i64 ; MASKED-NEXT: [[TMP11:%.*]] = ptrtoint ptr [[TMP9]] to i64 ; MASKED-NEXT: [[TMP12:%.*]] = lshr i64 [[TMP7]], 12 ; MASKED-NEXT: [[TMP13:%.*]] = lshr i64 [[TMP10]], 12 ; MASKED-NEXT: [[TMP14:%.*]] = lshr i64 [[TMP6]], 12 ; MASKED-NEXT: [[TMP15:%.*]] = lshr i64 [[TMP11]], 12 ; MASKED-NEXT: [[TMP16:%.*]] = icmp ne i64 [[TMP12]], [[TMP13]] ; MASKED-NEXT: [[TMP17:%.*]] = icmp ne i64 [[TMP14]], [[TMP15]] ; MASKED-NEXT: [[TMP18:%.*]] = or i1 [[TMP16]], [[TMP17]] ; MASKED-NEXT: br i1 [[TMP18]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VEC_LOOP_PREHEADER:%.*]], !prof [[PROF1]] ; MASKED: mismatch_vec_loop_preheader: ; MASKED-NEXT: [[TMP19:%.*]] = call @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP1]], i64 [[TMP2]]) ; MASKED-NEXT: [[TMP20:%.*]] = call i64 @llvm.vscale.i64() ; MASKED-NEXT: [[TMP21:%.*]] = mul nuw nsw i64 [[TMP20]], 16 ; MASKED-NEXT: br label [[MISMATCH_VEC_LOOP:%.*]] ; MASKED: mismatch_vec_loop: ; MASKED-NEXT: [[MISMATCH_VEC_LOOP_PRED:%.*]] = phi [ [[TMP19]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP30:%.*]], [[MISMATCH_VEC_LOOP_INC:%.*]] ] ; MASKED-NEXT: [[MISMATCH_VEC_INDEX:%.*]] = phi i64 [ [[TMP1]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP29:%.*]], [[MISMATCH_VEC_LOOP_INC]] ] ; MASKED-NEXT: [[TMP22:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[MISMATCH_VEC_INDEX]] ; MASKED-NEXT: [[TMP23:%.*]] = call @llvm.masked.load.nxv16i8.p0(ptr [[TMP22]], i32 1, [[MISMATCH_VEC_LOOP_PRED]], zeroinitializer) ; MASKED-NEXT: [[TMP24:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[MISMATCH_VEC_INDEX]] ; MASKED-NEXT: [[TMP25:%.*]] = call @llvm.masked.load.nxv16i8.p0(ptr [[TMP24]], i32 1, [[MISMATCH_VEC_LOOP_PRED]], zeroinitializer) ; MASKED-NEXT: [[TMP26:%.*]] = icmp ne [[TMP23]], [[TMP25]] ; MASKED-NEXT: [[TMP27:%.*]] = select [[MISMATCH_VEC_LOOP_PRED]], [[TMP26]], zeroinitializer ; MASKED-NEXT: [[TMP28:%.*]] = call i1 @llvm.vector.reduce.or.nxv16i1( [[TMP27]]) ; MASKED-NEXT: br i1 [[TMP28]], label [[MISMATCH_VEC_LOOP_FOUND:%.*]], label [[MISMATCH_VEC_LOOP_INC]] ; MASKED: mismatch_vec_loop_inc: ; MASKED-NEXT: [[TMP29]] = add nuw nsw i64 [[MISMATCH_VEC_INDEX]], [[TMP21]] ; MASKED-NEXT: [[TMP30]] = call @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP29]], i64 [[TMP2]]) ; MASKED-NEXT: [[TMP31:%.*]] = extractelement [[TMP30]], i64 0 ; MASKED-NEXT: br i1 [[TMP31]], label [[MISMATCH_VEC_LOOP]], label [[MISMATCH_END:%.*]] ; MASKED: mismatch_vec_loop_found: ; MASKED-NEXT: [[MISMATCH_VEC_FOUND_PRED:%.*]] = phi [ [[TMP27]], [[MISMATCH_VEC_LOOP]] ] ; MASKED-NEXT: [[MISMATCH_VEC_LAST_LOOP_PRED:%.*]] = phi [ [[MISMATCH_VEC_LOOP_PRED]], [[MISMATCH_VEC_LOOP]] ] ; MASKED-NEXT: [[MISMATCH_VEC_FOUND_INDEX:%.*]] = phi i64 [ [[MISMATCH_VEC_INDEX]], [[MISMATCH_VEC_LOOP]] ] ; MASKED-NEXT: [[TMP32:%.*]] = and [[MISMATCH_VEC_LAST_LOOP_PRED]], [[MISMATCH_VEC_FOUND_PRED]] ; MASKED-NEXT: [[TMP33:%.*]] = call i32 @llvm.experimental.cttz.elts.i32.nxv16i1( [[TMP32]], i1 true) ; MASKED-NEXT: [[TMP34:%.*]] = zext i32 [[TMP33]] to i64 ; MASKED-NEXT: [[TMP35:%.*]] = add nuw nsw i64 [[MISMATCH_VEC_FOUND_INDEX]], [[TMP34]] ; MASKED-NEXT: [[TMP36:%.*]] = trunc i64 [[TMP35]] to i32 ; MASKED-NEXT: br label [[MISMATCH_END]] ; MASKED: mismatch_loop_pre: ; MASKED-NEXT: br label [[MISMATCH_LOOP:%.*]] ; MASKED: mismatch_loop: ; MASKED-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ [[TMP0]], [[MISMATCH_LOOP_PRE]] ], [ [[TMP43:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; MASKED-NEXT: [[TMP37:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64 ; MASKED-NEXT: [[TMP38:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[TMP37]] ; MASKED-NEXT: [[TMP39:%.*]] = load i8, ptr [[TMP38]], align 1 ; MASKED-NEXT: [[TMP40:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[TMP37]] ; MASKED-NEXT: [[TMP41:%.*]] = load i8, ptr [[TMP40]], align 1 ; MASKED-NEXT: [[TMP42:%.*]] = icmp eq i8 [[TMP39]], [[TMP41]] ; MASKED-NEXT: br i1 [[TMP42]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]] ; MASKED: mismatch_loop_inc: ; MASKED-NEXT: [[TMP43]] = add i32 [[MISMATCH_INDEX]], 1 ; MASKED-NEXT: [[TMP44:%.*]] = icmp eq i32 [[TMP43]], [[N]] ; MASKED-NEXT: br i1 [[TMP44]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]] ; MASKED: mismatch_end: ; MASKED-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ [[N]], [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ [[N]], [[MISMATCH_VEC_LOOP_INC]] ], [ [[TMP36]], [[MISMATCH_VEC_LOOP_FOUND]] ] ; MASKED-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]] ; MASKED: while.cond: ; MASKED-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[MISMATCH_END]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ] ; MASKED-NEXT: [[INC:%.*]] = add i32 [[LEN_ADDR]], 1 ; MASKED-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], [[N]] ; MASKED-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END_LOOPEXIT:%.*]], label [[WHILE_BODY]] ; MASKED: while.body: ; MASKED-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64 ; MASKED-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; MASKED-NEXT: [[TMP45:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; MASKED-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; MASKED-NEXT: [[TMP46:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; MASKED-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP45]], [[TMP46]] ; MASKED-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END_LOOPEXIT]] ; MASKED: byte.compare: ; MASKED-NEXT: br label [[WHILE_END_LOOPEXIT]] ; MASKED: while.end.loopexit: ; MASKED-NEXT: [[INC_LCSSA1:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_COND]] ], [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ] ; MASKED-NEXT: br label [[WHILE_END]] ; MASKED: while.end: ; MASKED-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[X]], [[ENTRY:%.*]] ], [ [[INC_LCSSA1]], [[WHILE_END_LOOPEXIT]] ] ; MASKED-NEXT: ret i32 [[INC_LCSSA]] ; ; NO-TRANSFORM-LABEL: define i32 @compare_bytes_extra_cmp( ; NO-TRANSFORM-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]], i32 [[X:%.*]]) { ; NO-TRANSFORM-NEXT: entry: ; NO-TRANSFORM-NEXT: [[CMP_X:%.*]] = icmp ult i32 [[N]], [[X]] ; NO-TRANSFORM-NEXT: br i1 [[CMP_X]], label [[PH:%.*]], label [[WHILE_END:%.*]] ; NO-TRANSFORM: ph: ; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]] ; NO-TRANSFORM: while.cond: ; NO-TRANSFORM-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[PH]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ] ; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1 ; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]] ; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END]], label [[WHILE_BODY]] ; NO-TRANSFORM: while.body: ; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64 ; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]] ; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; NO-TRANSFORM: while.end: ; NO-TRANSFORM-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ], [ [[X]], [[ENTRY:%.*]] ] ; NO-TRANSFORM-NEXT: ret i32 [[INC_LCSSA]] entry: %cmp.x = icmp ult i32 %n, %x br i1 %cmp.x, label %ph, label %while.end ph: br label %while.cond while.cond: %len.addr = phi i32 [ %len, %ph ], [ %inc, %while.body ] %inc = add i32 %len.addr, 1 %cmp.not = icmp eq i32 %inc, %n br i1 %cmp.not, label %while.end, label %while.body while.body: %idxprom = zext i32 %inc to i64 %arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom %0 = load i8, ptr %arrayidx %arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom %1 = load i8, ptr %arrayidx2 %cmp.not2 = icmp eq i8 %0, %1 br i1 %cmp.not2, label %while.cond, label %while.end while.end: %inc.lcssa = phi i32 [ %inc, %while.body ], [ %inc, %while.cond ], [ %x, %entry ] ret i32 %inc.lcssa } define void @compare_bytes_cleanup_block(ptr %src1, ptr %src2) { ; CHECK-LABEL: define void @compare_bytes_cleanup_block( ; CHECK-SAME: ptr [[SRC1:%.*]], ptr [[SRC2:%.*]]) #[[ATTR0]] { ; CHECK-NEXT: entry: ; CHECK-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]] ; CHECK: mismatch_min_it_check: ; CHECK-NEXT: br i1 false, label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]] ; CHECK: mismatch_mem_check: ; CHECK-NEXT: [[TMP0:%.*]] = getelementptr i8, ptr [[SRC1]], i64 1 ; CHECK-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[SRC2]], i64 1 ; CHECK-NEXT: [[TMP9:%.*]] = ptrtoint ptr [[TMP1]] to i64 ; CHECK-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP0]] to i64 ; CHECK-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[SRC1]], i64 0 ; CHECK-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[SRC2]], i64 0 ; CHECK-NEXT: [[TMP4:%.*]] = ptrtoint ptr [[TMP3]] to i64 ; CHECK-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP6]] to i64 ; CHECK-NEXT: [[TMP2:%.*]] = lshr i64 [[TMP10]], 12 ; CHECK-NEXT: [[TMP5:%.*]] = lshr i64 [[TMP4]], 12 ; CHECK-NEXT: [[TMP8:%.*]] = lshr i64 [[TMP9]], 12 ; CHECK-NEXT: [[TMP11:%.*]] = lshr i64 [[TMP7]], 12 ; CHECK-NEXT: [[TMP12:%.*]] = icmp ne i64 [[TMP2]], [[TMP5]] ; CHECK-NEXT: [[TMP13:%.*]] = icmp ne i64 [[TMP8]], [[TMP11]] ; CHECK-NEXT: [[TMP14:%.*]] = or i1 [[TMP12]], [[TMP13]] ; CHECK-NEXT: br i1 [[TMP14]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VECTOR_LOOP_PREHEADER:%.*]], !prof [[PROF1]] ; CHECK: mismatch_vec_loop_preheader: ; CHECK-NEXT: br label [[MISMATCH_VECTOR_LOOP:%.*]] ; CHECK: mismatch_vec_loop: ; CHECK-NEXT: [[MISMATCH_VECTOR_INDEX:%.*]] = phi i64 [ 1, [[MISMATCH_VECTOR_LOOP_PREHEADER]] ], [ [[TMP20:%.*]], [[MISMATCH_VECTOR_LOOP_INC:%.*]] ] ; CHECK-NEXT: [[AVL:%.*]] = sub nuw nsw i64 0, [[MISMATCH_VECTOR_INDEX]] ; CHECK-NEXT: [[TMP15:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 16, i1 true) ; CHECK-NEXT: [[TMP16:%.*]] = getelementptr i8, ptr [[SRC1]], i64 [[MISMATCH_VECTOR_INDEX]] ; CHECK-NEXT: [[LHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP16]], splat (i1 true), i32 [[TMP15]]) ; CHECK-NEXT: [[TMP17:%.*]] = getelementptr i8, ptr [[SRC2]], i64 [[MISMATCH_VECTOR_INDEX]] ; CHECK-NEXT: [[RHS_LOAD:%.*]] = call @llvm.vp.load.nxv16i8.p0(ptr [[TMP17]], splat (i1 true), i32 [[TMP15]]) ; CHECK-NEXT: [[MISMATCH_CMP:%.*]] = icmp ne [[LHS_LOAD]], [[RHS_LOAD]] ; CHECK-NEXT: [[FIRST:%.*]] = call i32 @llvm.vp.cttz.elts.i32.nxv16i1( [[MISMATCH_CMP]], i1 false, splat (i1 true), i32 [[TMP15]]) ; CHECK-NEXT: [[TMP18:%.*]] = icmp ne i32 [[FIRST]], [[TMP15]] ; CHECK-NEXT: br i1 [[TMP18]], label [[MISMATCH_VECTOR_LOOP_FOUND:%.*]], label [[MISMATCH_VECTOR_LOOP_INC]] ; CHECK: mismatch_vec_loop_inc: ; CHECK-NEXT: [[TMP19:%.*]] = zext i32 [[TMP15]] to i64 ; CHECK-NEXT: [[TMP20]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX]], [[TMP19]] ; CHECK-NEXT: [[TMP21:%.*]] = icmp ne i64 [[TMP20]], 0 ; CHECK-NEXT: br i1 [[TMP21]], label [[MISMATCH_VECTOR_LOOP]], label [[MISMATCH_END:%.*]] ; CHECK: mismatch_vec_loop_found: ; CHECK-NEXT: [[FIRST1:%.*]] = phi i32 [ [[FIRST]], [[MISMATCH_VECTOR_LOOP]] ] ; CHECK-NEXT: [[MISMATCH_VECTOR_INDEX2:%.*]] = phi i64 [ [[MISMATCH_VECTOR_INDEX]], [[MISMATCH_VECTOR_LOOP]] ] ; CHECK-NEXT: [[TMP22:%.*]] = zext i32 [[FIRST1]] to i64 ; CHECK-NEXT: [[TMP23:%.*]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX2]], [[TMP22]] ; CHECK-NEXT: [[TMP24:%.*]] = trunc i64 [[TMP23]] to i32 ; CHECK-NEXT: br label [[MISMATCH_END]] ; CHECK: mismatch_loop_pre: ; CHECK-NEXT: br label [[MISMATCH_LOOP:%.*]] ; CHECK: mismatch_loop: ; CHECK-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ 1, [[MISMATCH_LOOP_PRE]] ], [ [[TMP31:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; CHECK-NEXT: [[TMP25:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64 ; CHECK-NEXT: [[TMP26:%.*]] = getelementptr i8, ptr [[SRC1]], i64 [[TMP25]] ; CHECK-NEXT: [[TMP27:%.*]] = load i8, ptr [[TMP26]], align 1 ; CHECK-NEXT: [[TMP28:%.*]] = getelementptr i8, ptr [[SRC2]], i64 [[TMP25]] ; CHECK-NEXT: [[TMP29:%.*]] = load i8, ptr [[TMP28]], align 1 ; CHECK-NEXT: [[TMP30:%.*]] = icmp eq i8 [[TMP27]], [[TMP29]] ; CHECK-NEXT: br i1 [[TMP30]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]] ; CHECK: mismatch_loop_inc: ; CHECK-NEXT: [[TMP31]] = add i32 [[MISMATCH_INDEX]], 1 ; CHECK-NEXT: [[TMP32:%.*]] = icmp eq i32 [[TMP31]], 0 ; CHECK-NEXT: br i1 [[TMP32]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]] ; CHECK: mismatch_end: ; CHECK-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ 0, [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ 0, [[MISMATCH_VECTOR_LOOP_INC]] ], [ [[TMP24]], [[MISMATCH_VECTOR_LOOP_FOUND]] ] ; CHECK-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]] ; CHECK: while.cond: ; CHECK-NEXT: [[LEN:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ], [ 0, [[MISMATCH_END]] ] ; CHECK-NEXT: [[INC:%.*]] = add i32 [[LEN]], 1 ; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], 0 ; CHECK-NEXT: br i1 [[CMP_NOT]], label [[CLEANUP_THREAD:%.*]], label [[WHILE_BODY]] ; CHECK: while.body: ; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64 ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr i8, ptr [[SRC1]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP33:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr i8, ptr [[SRC2]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP34:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP33]], [[TMP34]] ; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[IF_END:%.*]] ; CHECK: byte.compare: ; CHECK-NEXT: [[TMP35:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], 0 ; CHECK-NEXT: br i1 [[TMP35]], label [[CLEANUP_THREAD]], label [[IF_END]] ; CHECK: cleanup.thread: ; CHECK-NEXT: ret void ; CHECK: if.end: ; CHECK-NEXT: [[RES:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ] ; CHECK-NEXT: ret void ; ; LMUL8-LABEL: define void @compare_bytes_cleanup_block( ; LMUL8-SAME: ptr [[SRC1:%.*]], ptr [[SRC2:%.*]]) #[[ATTR0]] { ; LMUL8-NEXT: entry: ; LMUL8-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]] ; LMUL8: mismatch_min_it_check: ; LMUL8-NEXT: br i1 false, label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]] ; LMUL8: mismatch_mem_check: ; LMUL8-NEXT: [[TMP0:%.*]] = getelementptr i8, ptr [[SRC1]], i64 1 ; LMUL8-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[SRC2]], i64 1 ; LMUL8-NEXT: [[TMP9:%.*]] = ptrtoint ptr [[TMP1]] to i64 ; LMUL8-NEXT: [[TMP10:%.*]] = ptrtoint ptr [[TMP0]] to i64 ; LMUL8-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[SRC1]], i64 0 ; LMUL8-NEXT: [[TMP6:%.*]] = getelementptr i8, ptr [[SRC2]], i64 0 ; LMUL8-NEXT: [[TMP4:%.*]] = ptrtoint ptr [[TMP3]] to i64 ; LMUL8-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP6]] to i64 ; LMUL8-NEXT: [[TMP2:%.*]] = lshr i64 [[TMP10]], 12 ; LMUL8-NEXT: [[TMP5:%.*]] = lshr i64 [[TMP4]], 12 ; LMUL8-NEXT: [[TMP8:%.*]] = lshr i64 [[TMP9]], 12 ; LMUL8-NEXT: [[TMP11:%.*]] = lshr i64 [[TMP7]], 12 ; LMUL8-NEXT: [[TMP12:%.*]] = icmp ne i64 [[TMP2]], [[TMP5]] ; LMUL8-NEXT: [[TMP13:%.*]] = icmp ne i64 [[TMP8]], [[TMP11]] ; LMUL8-NEXT: [[TMP14:%.*]] = or i1 [[TMP12]], [[TMP13]] ; LMUL8-NEXT: br i1 [[TMP14]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VECTOR_LOOP_PREHEADER:%.*]], !prof [[PROF1]] ; LMUL8: mismatch_vec_loop_preheader: ; LMUL8-NEXT: br label [[MISMATCH_VECTOR_LOOP:%.*]] ; LMUL8: mismatch_vec_loop: ; LMUL8-NEXT: [[MISMATCH_VECTOR_INDEX:%.*]] = phi i64 [ 1, [[MISMATCH_VECTOR_LOOP_PREHEADER]] ], [ [[TMP20:%.*]], [[MISMATCH_VECTOR_LOOP_INC:%.*]] ] ; LMUL8-NEXT: [[AVL:%.*]] = sub nuw nsw i64 0, [[MISMATCH_VECTOR_INDEX]] ; LMUL8-NEXT: [[TMP15:%.*]] = call i32 @llvm.experimental.get.vector.length.i64(i64 [[AVL]], i32 64, i1 true) ; LMUL8-NEXT: [[TMP16:%.*]] = getelementptr i8, ptr [[SRC1]], i64 [[MISMATCH_VECTOR_INDEX]] ; LMUL8-NEXT: [[LHS_LOAD:%.*]] = call @llvm.vp.load.nxv64i8.p0(ptr [[TMP16]], splat (i1 true), i32 [[TMP15]]) ; LMUL8-NEXT: [[TMP17:%.*]] = getelementptr i8, ptr [[SRC2]], i64 [[MISMATCH_VECTOR_INDEX]] ; LMUL8-NEXT: [[RHS_LOAD:%.*]] = call @llvm.vp.load.nxv64i8.p0(ptr [[TMP17]], splat (i1 true), i32 [[TMP15]]) ; LMUL8-NEXT: [[MISMATCH_CMP:%.*]] = icmp ne [[LHS_LOAD]], [[RHS_LOAD]] ; LMUL8-NEXT: [[FIRST:%.*]] = call i32 @llvm.vp.cttz.elts.i32.nxv64i1( [[MISMATCH_CMP]], i1 false, splat (i1 true), i32 [[TMP15]]) ; LMUL8-NEXT: [[TMP18:%.*]] = icmp ne i32 [[FIRST]], [[TMP15]] ; LMUL8-NEXT: br i1 [[TMP18]], label [[MISMATCH_VECTOR_LOOP_FOUND:%.*]], label [[MISMATCH_VECTOR_LOOP_INC]] ; LMUL8: mismatch_vec_loop_inc: ; LMUL8-NEXT: [[TMP19:%.*]] = zext i32 [[TMP15]] to i64 ; LMUL8-NEXT: [[TMP20]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX]], [[TMP19]] ; LMUL8-NEXT: [[TMP21:%.*]] = icmp ne i64 [[TMP20]], 0 ; LMUL8-NEXT: br i1 [[TMP21]], label [[MISMATCH_VECTOR_LOOP]], label [[MISMATCH_END:%.*]] ; LMUL8: mismatch_vec_loop_found: ; LMUL8-NEXT: [[FIRST1:%.*]] = phi i32 [ [[FIRST]], [[MISMATCH_VECTOR_LOOP]] ] ; LMUL8-NEXT: [[MISMATCH_VECTOR_INDEX2:%.*]] = phi i64 [ [[MISMATCH_VECTOR_INDEX]], [[MISMATCH_VECTOR_LOOP]] ] ; LMUL8-NEXT: [[TMP22:%.*]] = zext i32 [[FIRST1]] to i64 ; LMUL8-NEXT: [[TMP23:%.*]] = add nuw nsw i64 [[MISMATCH_VECTOR_INDEX2]], [[TMP22]] ; LMUL8-NEXT: [[TMP24:%.*]] = trunc i64 [[TMP23]] to i32 ; LMUL8-NEXT: br label [[MISMATCH_END]] ; LMUL8: mismatch_loop_pre: ; LMUL8-NEXT: br label [[MISMATCH_LOOP:%.*]] ; LMUL8: mismatch_loop: ; LMUL8-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ 1, [[MISMATCH_LOOP_PRE]] ], [ [[TMP31:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; LMUL8-NEXT: [[TMP25:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64 ; LMUL8-NEXT: [[TMP26:%.*]] = getelementptr i8, ptr [[SRC1]], i64 [[TMP25]] ; LMUL8-NEXT: [[TMP27:%.*]] = load i8, ptr [[TMP26]], align 1 ; LMUL8-NEXT: [[TMP28:%.*]] = getelementptr i8, ptr [[SRC2]], i64 [[TMP25]] ; LMUL8-NEXT: [[TMP29:%.*]] = load i8, ptr [[TMP28]], align 1 ; LMUL8-NEXT: [[TMP30:%.*]] = icmp eq i8 [[TMP27]], [[TMP29]] ; LMUL8-NEXT: br i1 [[TMP30]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]] ; LMUL8: mismatch_loop_inc: ; LMUL8-NEXT: [[TMP31]] = add i32 [[MISMATCH_INDEX]], 1 ; LMUL8-NEXT: [[TMP32:%.*]] = icmp eq i32 [[TMP31]], 0 ; LMUL8-NEXT: br i1 [[TMP32]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]] ; LMUL8: mismatch_end: ; LMUL8-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ 0, [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ 0, [[MISMATCH_VECTOR_LOOP_INC]] ], [ [[TMP24]], [[MISMATCH_VECTOR_LOOP_FOUND]] ] ; LMUL8-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]] ; LMUL8: while.cond: ; LMUL8-NEXT: [[LEN:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ], [ 0, [[MISMATCH_END]] ] ; LMUL8-NEXT: [[INC:%.*]] = add i32 [[LEN]], 1 ; LMUL8-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], 0 ; LMUL8-NEXT: br i1 [[CMP_NOT]], label [[CLEANUP_THREAD:%.*]], label [[WHILE_BODY]] ; LMUL8: while.body: ; LMUL8-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64 ; LMUL8-NEXT: [[ARRAYIDX:%.*]] = getelementptr i8, ptr [[SRC1]], i64 [[IDXPROM]] ; LMUL8-NEXT: [[TMP33:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; LMUL8-NEXT: [[ARRAYIDX2:%.*]] = getelementptr i8, ptr [[SRC2]], i64 [[IDXPROM]] ; LMUL8-NEXT: [[TMP34:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; LMUL8-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP33]], [[TMP34]] ; LMUL8-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[IF_END:%.*]] ; LMUL8: byte.compare: ; LMUL8-NEXT: [[TMP35:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], 0 ; LMUL8-NEXT: br i1 [[TMP35]], label [[CLEANUP_THREAD]], label [[IF_END]] ; LMUL8: cleanup.thread: ; LMUL8-NEXT: ret void ; LMUL8: if.end: ; LMUL8-NEXT: [[RES:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ] ; LMUL8-NEXT: ret void ; ; LOOP-DEL-LABEL: define void @compare_bytes_cleanup_block( ; LOOP-DEL-SAME: ptr [[SRC1:%.*]], ptr [[SRC2:%.*]]) #[[ATTR0]] { ; LOOP-DEL-NEXT: entry: ; LOOP-DEL-NEXT: br label [[MISMATCH_LOOP:%.*]] ; LOOP-DEL: mismatch_loop: ; LOOP-DEL-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ 1, [[ENTRY:%.*]] ], [ [[TMP6:%.*]], [[MISMATCH_LOOP]] ] ; LOOP-DEL-NEXT: [[TMP0:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64 ; LOOP-DEL-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[SRC1]], i64 [[TMP0]] ; LOOP-DEL-NEXT: [[TMP2:%.*]] = load i8, ptr [[TMP1]], align 1 ; LOOP-DEL-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[SRC2]], i64 [[TMP0]] ; LOOP-DEL-NEXT: [[TMP4:%.*]] = load i8, ptr [[TMP3]], align 1 ; LOOP-DEL-NEXT: [[TMP5:%.*]] = icmp ne i8 [[TMP2]], [[TMP4]] ; LOOP-DEL-NEXT: [[TMP6]] = add i32 [[MISMATCH_INDEX]], 1 ; LOOP-DEL-NEXT: [[TMP7:%.*]] = icmp eq i32 [[TMP6]], 0 ; LOOP-DEL-NEXT: [[OR_COND:%.*]] = or i1 [[TMP5]], [[TMP7]] ; LOOP-DEL-NEXT: br i1 [[OR_COND]], label [[COMMON_RET:%.*]], label [[MISMATCH_LOOP]] ; LOOP-DEL: common.ret: ; LOOP-DEL-NEXT: ret void ; ; MASKED-LABEL: define void @compare_bytes_cleanup_block( ; MASKED-SAME: ptr [[SRC1:%.*]], ptr [[SRC2:%.*]]) #[[ATTR0]] { ; MASKED-NEXT: entry: ; MASKED-NEXT: br label [[MISMATCH_MIN_IT_CHECK:%.*]] ; MASKED: mismatch_min_it_check: ; MASKED-NEXT: br i1 false, label [[MISMATCH_MEM_CHECK:%.*]], label [[MISMATCH_LOOP_PRE:%.*]], !prof [[PROF0]] ; MASKED: mismatch_mem_check: ; MASKED-NEXT: [[TMP0:%.*]] = getelementptr i8, ptr [[SRC1]], i64 1 ; MASKED-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[SRC2]], i64 1 ; MASKED-NEXT: [[TMP2:%.*]] = ptrtoint ptr [[TMP1]] to i64 ; MASKED-NEXT: [[TMP3:%.*]] = ptrtoint ptr [[TMP0]] to i64 ; MASKED-NEXT: [[TMP4:%.*]] = getelementptr i8, ptr [[SRC1]], i64 0 ; MASKED-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[SRC2]], i64 0 ; MASKED-NEXT: [[TMP6:%.*]] = ptrtoint ptr [[TMP4]] to i64 ; MASKED-NEXT: [[TMP7:%.*]] = ptrtoint ptr [[TMP5]] to i64 ; MASKED-NEXT: [[TMP8:%.*]] = lshr i64 [[TMP3]], 12 ; MASKED-NEXT: [[TMP9:%.*]] = lshr i64 [[TMP6]], 12 ; MASKED-NEXT: [[TMP10:%.*]] = lshr i64 [[TMP2]], 12 ; MASKED-NEXT: [[TMP11:%.*]] = lshr i64 [[TMP7]], 12 ; MASKED-NEXT: [[TMP12:%.*]] = icmp ne i64 [[TMP8]], [[TMP9]] ; MASKED-NEXT: [[TMP13:%.*]] = icmp ne i64 [[TMP10]], [[TMP11]] ; MASKED-NEXT: [[TMP14:%.*]] = or i1 [[TMP12]], [[TMP13]] ; MASKED-NEXT: br i1 [[TMP14]], label [[MISMATCH_LOOP_PRE]], label [[MISMATCH_VEC_LOOP_PREHEADER:%.*]], !prof [[PROF1]] ; MASKED: mismatch_vec_loop_preheader: ; MASKED-NEXT: [[TMP15:%.*]] = call @llvm.get.active.lane.mask.nxv16i1.i64(i64 1, i64 0) ; MASKED-NEXT: [[TMP16:%.*]] = call i64 @llvm.vscale.i64() ; MASKED-NEXT: [[TMP17:%.*]] = mul nuw nsw i64 [[TMP16]], 16 ; MASKED-NEXT: br label [[MISMATCH_VEC_LOOP:%.*]] ; MASKED: mismatch_vec_loop: ; MASKED-NEXT: [[MISMATCH_VEC_LOOP_PRED:%.*]] = phi [ [[TMP15]], [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP26:%.*]], [[MISMATCH_VEC_LOOP_INC:%.*]] ] ; MASKED-NEXT: [[MISMATCH_VEC_INDEX:%.*]] = phi i64 [ 1, [[MISMATCH_VEC_LOOP_PREHEADER]] ], [ [[TMP25:%.*]], [[MISMATCH_VEC_LOOP_INC]] ] ; MASKED-NEXT: [[TMP18:%.*]] = getelementptr i8, ptr [[SRC1]], i64 [[MISMATCH_VEC_INDEX]] ; MASKED-NEXT: [[TMP19:%.*]] = call @llvm.masked.load.nxv16i8.p0(ptr [[TMP18]], i32 1, [[MISMATCH_VEC_LOOP_PRED]], zeroinitializer) ; MASKED-NEXT: [[TMP20:%.*]] = getelementptr i8, ptr [[SRC2]], i64 [[MISMATCH_VEC_INDEX]] ; MASKED-NEXT: [[TMP21:%.*]] = call @llvm.masked.load.nxv16i8.p0(ptr [[TMP20]], i32 1, [[MISMATCH_VEC_LOOP_PRED]], zeroinitializer) ; MASKED-NEXT: [[TMP22:%.*]] = icmp ne [[TMP19]], [[TMP21]] ; MASKED-NEXT: [[TMP23:%.*]] = select [[MISMATCH_VEC_LOOP_PRED]], [[TMP22]], zeroinitializer ; MASKED-NEXT: [[TMP24:%.*]] = call i1 @llvm.vector.reduce.or.nxv16i1( [[TMP23]]) ; MASKED-NEXT: br i1 [[TMP24]], label [[MISMATCH_VEC_LOOP_FOUND:%.*]], label [[MISMATCH_VEC_LOOP_INC]] ; MASKED: mismatch_vec_loop_inc: ; MASKED-NEXT: [[TMP25]] = add nuw nsw i64 [[MISMATCH_VEC_INDEX]], [[TMP17]] ; MASKED-NEXT: [[TMP26]] = call @llvm.get.active.lane.mask.nxv16i1.i64(i64 [[TMP25]], i64 0) ; MASKED-NEXT: [[TMP27:%.*]] = extractelement [[TMP26]], i64 0 ; MASKED-NEXT: br i1 [[TMP27]], label [[MISMATCH_VEC_LOOP]], label [[MISMATCH_END:%.*]] ; MASKED: mismatch_vec_loop_found: ; MASKED-NEXT: [[MISMATCH_VEC_FOUND_PRED:%.*]] = phi [ [[TMP23]], [[MISMATCH_VEC_LOOP]] ] ; MASKED-NEXT: [[MISMATCH_VEC_LAST_LOOP_PRED:%.*]] = phi [ [[MISMATCH_VEC_LOOP_PRED]], [[MISMATCH_VEC_LOOP]] ] ; MASKED-NEXT: [[MISMATCH_VEC_FOUND_INDEX:%.*]] = phi i64 [ [[MISMATCH_VEC_INDEX]], [[MISMATCH_VEC_LOOP]] ] ; MASKED-NEXT: [[TMP28:%.*]] = and [[MISMATCH_VEC_LAST_LOOP_PRED]], [[MISMATCH_VEC_FOUND_PRED]] ; MASKED-NEXT: [[TMP29:%.*]] = call i32 @llvm.experimental.cttz.elts.i32.nxv16i1( [[TMP28]], i1 true) ; MASKED-NEXT: [[TMP30:%.*]] = zext i32 [[TMP29]] to i64 ; MASKED-NEXT: [[TMP31:%.*]] = add nuw nsw i64 [[MISMATCH_VEC_FOUND_INDEX]], [[TMP30]] ; MASKED-NEXT: [[TMP32:%.*]] = trunc i64 [[TMP31]] to i32 ; MASKED-NEXT: br label [[MISMATCH_END]] ; MASKED: mismatch_loop_pre: ; MASKED-NEXT: br label [[MISMATCH_LOOP:%.*]] ; MASKED: mismatch_loop: ; MASKED-NEXT: [[MISMATCH_INDEX:%.*]] = phi i32 [ 1, [[MISMATCH_LOOP_PRE]] ], [ [[TMP39:%.*]], [[MISMATCH_LOOP_INC:%.*]] ] ; MASKED-NEXT: [[TMP33:%.*]] = zext i32 [[MISMATCH_INDEX]] to i64 ; MASKED-NEXT: [[TMP34:%.*]] = getelementptr i8, ptr [[SRC1]], i64 [[TMP33]] ; MASKED-NEXT: [[TMP35:%.*]] = load i8, ptr [[TMP34]], align 1 ; MASKED-NEXT: [[TMP36:%.*]] = getelementptr i8, ptr [[SRC2]], i64 [[TMP33]] ; MASKED-NEXT: [[TMP37:%.*]] = load i8, ptr [[TMP36]], align 1 ; MASKED-NEXT: [[TMP38:%.*]] = icmp eq i8 [[TMP35]], [[TMP37]] ; MASKED-NEXT: br i1 [[TMP38]], label [[MISMATCH_LOOP_INC]], label [[MISMATCH_END]] ; MASKED: mismatch_loop_inc: ; MASKED-NEXT: [[TMP39]] = add i32 [[MISMATCH_INDEX]], 1 ; MASKED-NEXT: [[TMP40:%.*]] = icmp eq i32 [[TMP39]], 0 ; MASKED-NEXT: br i1 [[TMP40]], label [[MISMATCH_END]], label [[MISMATCH_LOOP]] ; MASKED: mismatch_end: ; MASKED-NEXT: [[MISMATCH_RESULT:%.*]] = phi i32 [ 0, [[MISMATCH_LOOP_INC]] ], [ [[MISMATCH_INDEX]], [[MISMATCH_LOOP]] ], [ 0, [[MISMATCH_VEC_LOOP_INC]] ], [ [[TMP32]], [[MISMATCH_VEC_LOOP_FOUND]] ] ; MASKED-NEXT: br i1 true, label [[BYTE_COMPARE:%.*]], label [[WHILE_COND:%.*]] ; MASKED: while.cond: ; MASKED-NEXT: [[LEN:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY:%.*]] ], [ 0, [[MISMATCH_END]] ] ; MASKED-NEXT: [[INC:%.*]] = add i32 [[LEN]], 1 ; MASKED-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], 0 ; MASKED-NEXT: br i1 [[CMP_NOT]], label [[CLEANUP_THREAD:%.*]], label [[WHILE_BODY]] ; MASKED: while.body: ; MASKED-NEXT: [[IDXPROM:%.*]] = zext i32 [[MISMATCH_RESULT]] to i64 ; MASKED-NEXT: [[ARRAYIDX:%.*]] = getelementptr i8, ptr [[SRC1]], i64 [[IDXPROM]] ; MASKED-NEXT: [[TMP41:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; MASKED-NEXT: [[ARRAYIDX2:%.*]] = getelementptr i8, ptr [[SRC2]], i64 [[IDXPROM]] ; MASKED-NEXT: [[TMP42:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; MASKED-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP41]], [[TMP42]] ; MASKED-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[IF_END:%.*]] ; MASKED: byte.compare: ; MASKED-NEXT: [[TMP43:%.*]] = icmp eq i32 [[MISMATCH_RESULT]], 0 ; MASKED-NEXT: br i1 [[TMP43]], label [[CLEANUP_THREAD]], label [[IF_END]] ; MASKED: cleanup.thread: ; MASKED-NEXT: ret void ; MASKED: if.end: ; MASKED-NEXT: [[RES:%.*]] = phi i32 [ [[MISMATCH_RESULT]], [[WHILE_BODY]] ], [ [[MISMATCH_RESULT]], [[BYTE_COMPARE]] ] ; MASKED-NEXT: ret void ; ; NO-TRANSFORM-LABEL: define void @compare_bytes_cleanup_block( ; NO-TRANSFORM-SAME: ptr [[SRC1:%.*]], ptr [[SRC2:%.*]]) { ; NO-TRANSFORM-NEXT: entry: ; NO-TRANSFORM-NEXT: br label [[WHILE_COND:%.*]] ; NO-TRANSFORM: while.cond: ; NO-TRANSFORM-NEXT: [[LEN:%.*]] = phi i32 [ [[INC:%.*]], [[WHILE_BODY:%.*]] ], [ 0, [[ENTRY:%.*]] ] ; NO-TRANSFORM-NEXT: [[INC]] = add i32 [[LEN]], 1 ; NO-TRANSFORM-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], 0 ; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT]], label [[CLEANUP_THREAD:%.*]], label [[WHILE_BODY]] ; NO-TRANSFORM: while.body: ; NO-TRANSFORM-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64 ; NO-TRANSFORM-NEXT: [[ARRAYIDX:%.*]] = getelementptr i8, ptr [[SRC1]], i64 [[IDXPROM]] ; NO-TRANSFORM-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; NO-TRANSFORM-NEXT: [[ARRAYIDX2:%.*]] = getelementptr i8, ptr [[SRC2]], i64 [[IDXPROM]] ; NO-TRANSFORM-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; NO-TRANSFORM-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]] ; NO-TRANSFORM-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[IF_END:%.*]] ; NO-TRANSFORM: cleanup.thread: ; NO-TRANSFORM-NEXT: ret void ; NO-TRANSFORM: if.end: ; NO-TRANSFORM-NEXT: [[RES:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ] ; NO-TRANSFORM-NEXT: ret void entry: br label %while.cond while.cond: %len = phi i32 [ %inc, %while.body ], [ 0, %entry ] %inc = add i32 %len, 1 %cmp.not = icmp eq i32 %inc, 0 br i1 %cmp.not, label %cleanup.thread, label %while.body while.body: %idxprom = zext i32 %inc to i64 %arrayidx = getelementptr i8, ptr %src1, i64 %idxprom %0 = load i8, ptr %arrayidx, align 1 %arrayidx2 = getelementptr i8, ptr %src2, i64 %idxprom %1 = load i8, ptr %arrayidx2, align 1 %cmp.not2 = icmp eq i8 %0, %1 br i1 %cmp.not2, label %while.cond, label %if.end cleanup.thread: ret void if.end: %res = phi i32 [ %inc, %while.body ] ret void } ; ; NEGATIVE TESTS ; ; Similar to @compare_bytes_simple, except in the while.end block we have an extra PHI ; with unique values for each incoming block from the loop. define i32 @compare_bytes_simple2(ptr %a, ptr %b, ptr %c, ptr %d, i32 %len, i32 %n) { ; CHECK-LABEL: define i32 @compare_bytes_simple2( ; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], ptr [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { ; CHECK-NEXT: entry: ; CHECK-NEXT: br label [[WHILE_COND:%.*]] ; CHECK: while.cond: ; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ] ; CHECK-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1 ; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]] ; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; CHECK: while.body: ; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64 ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]] ; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; CHECK: while.end: ; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ] ; CHECK-NEXT: [[FINAL_PTR:%.*]] = phi ptr [ [[C]], [[WHILE_BODY]] ], [ [[D]], [[WHILE_COND]] ] ; CHECK-NEXT: store i32 [[INC_LCSSA]], ptr [[FINAL_PTR]], align 4 ; CHECK-NEXT: ret i32 [[INC_LCSSA]] ; ; LMUL8-LABEL: define i32 @compare_bytes_simple2( ; LMUL8-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], ptr [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { ; LMUL8-NEXT: entry: ; LMUL8-NEXT: br label [[WHILE_COND:%.*]] ; LMUL8: while.cond: ; LMUL8-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ] ; LMUL8-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1 ; LMUL8-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]] ; LMUL8-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; LMUL8: while.body: ; LMUL8-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64 ; LMUL8-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; LMUL8-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; LMUL8-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; LMUL8-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; LMUL8-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]] ; LMUL8-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; LMUL8: while.end: ; LMUL8-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ] ; LMUL8-NEXT: [[FINAL_PTR:%.*]] = phi ptr [ [[C]], [[WHILE_BODY]] ], [ [[D]], [[WHILE_COND]] ] ; LMUL8-NEXT: store i32 [[INC_LCSSA]], ptr [[FINAL_PTR]], align 4 ; LMUL8-NEXT: ret i32 [[INC_LCSSA]] ; ; LOOP-DEL-LABEL: define i32 @compare_bytes_simple2( ; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], ptr [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { ; LOOP-DEL-NEXT: entry: ; LOOP-DEL-NEXT: br label [[WHILE_COND:%.*]] ; LOOP-DEL: while.cond: ; LOOP-DEL-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ] ; LOOP-DEL-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1 ; LOOP-DEL-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]] ; LOOP-DEL-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; LOOP-DEL: while.body: ; LOOP-DEL-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64 ; LOOP-DEL-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; LOOP-DEL-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; LOOP-DEL-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; LOOP-DEL-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; LOOP-DEL-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]] ; LOOP-DEL-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; LOOP-DEL: while.end: ; LOOP-DEL-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ] ; LOOP-DEL-NEXT: [[FINAL_PTR:%.*]] = phi ptr [ [[C]], [[WHILE_BODY]] ], [ [[D]], [[WHILE_COND]] ] ; LOOP-DEL-NEXT: store i32 [[INC_LCSSA]], ptr [[FINAL_PTR]], align 4 ; LOOP-DEL-NEXT: ret i32 [[INC_LCSSA]] ; ; MASKED-LABEL: define i32 @compare_bytes_simple2( ; MASKED-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], ptr [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { ; MASKED-NEXT: entry: ; MASKED-NEXT: br label [[WHILE_COND:%.*]] ; MASKED: while.cond: ; MASKED-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ] ; MASKED-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1 ; MASKED-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]] ; MASKED-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; MASKED: while.body: ; MASKED-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64 ; MASKED-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; MASKED-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; MASKED-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; MASKED-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; MASKED-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]] ; MASKED-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; MASKED: while.end: ; MASKED-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ] ; MASKED-NEXT: [[FINAL_PTR:%.*]] = phi ptr [ [[C]], [[WHILE_BODY]] ], [ [[D]], [[WHILE_COND]] ] ; MASKED-NEXT: store i32 [[INC_LCSSA]], ptr [[FINAL_PTR]], align 4 ; MASKED-NEXT: ret i32 [[INC_LCSSA]] ; entry: br label %while.cond while.cond: %len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ] %inc = add i32 %len.addr, 1 %cmp.not = icmp eq i32 %inc, %n br i1 %cmp.not, label %while.end, label %while.body while.body: %idxprom = zext i32 %inc to i64 %arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom %0 = load i8, ptr %arrayidx %arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom %1 = load i8, ptr %arrayidx2 %cmp.not2 = icmp eq i8 %0, %1 br i1 %cmp.not2, label %while.cond, label %while.end while.end: %inc.lcssa = phi i32 [ %inc, %while.body ], [ %inc, %while.cond ] %final_ptr = phi ptr [ %c, %while.body ], [ %d, %while.cond ] store i32 %inc.lcssa, ptr %final_ptr ret i32 %inc.lcssa } define i32 @compare_bytes_simple3(ptr %a, ptr %b, ptr %c, i32 %d, i32 %len, i32 %n) { ; CHECK-LABEL: define i32 @compare_bytes_simple3( ; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], i32 [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { ; CHECK-NEXT: entry: ; CHECK-NEXT: br label [[WHILE_COND:%.*]] ; CHECK: while.cond: ; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ] ; CHECK-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1 ; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]] ; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; CHECK: while.body: ; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64 ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]] ; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; CHECK: while.end: ; CHECK-NEXT: [[FINAL_VAL:%.*]] = phi i32 [ [[D]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ] ; CHECK-NEXT: store i32 [[FINAL_VAL]], ptr [[C]], align 4 ; CHECK-NEXT: ret i32 [[FINAL_VAL]] ; ; LMUL8-LABEL: define i32 @compare_bytes_simple3( ; LMUL8-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], i32 [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { ; LMUL8-NEXT: entry: ; LMUL8-NEXT: br label [[WHILE_COND:%.*]] ; LMUL8: while.cond: ; LMUL8-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ] ; LMUL8-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1 ; LMUL8-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]] ; LMUL8-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; LMUL8: while.body: ; LMUL8-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64 ; LMUL8-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; LMUL8-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; LMUL8-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; LMUL8-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; LMUL8-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]] ; LMUL8-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; LMUL8: while.end: ; LMUL8-NEXT: [[FINAL_VAL:%.*]] = phi i32 [ [[D]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ] ; LMUL8-NEXT: store i32 [[FINAL_VAL]], ptr [[C]], align 4 ; LMUL8-NEXT: ret i32 [[FINAL_VAL]] ; ; LOOP-DEL-LABEL: define i32 @compare_bytes_simple3( ; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], i32 [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { ; LOOP-DEL-NEXT: entry: ; LOOP-DEL-NEXT: br label [[WHILE_COND:%.*]] ; LOOP-DEL: while.cond: ; LOOP-DEL-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ] ; LOOP-DEL-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1 ; LOOP-DEL-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]] ; LOOP-DEL-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; LOOP-DEL: while.body: ; LOOP-DEL-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64 ; LOOP-DEL-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; LOOP-DEL-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; LOOP-DEL-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; LOOP-DEL-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; LOOP-DEL-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]] ; LOOP-DEL-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; LOOP-DEL: while.end: ; LOOP-DEL-NEXT: [[FINAL_VAL:%.*]] = phi i32 [ [[D]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ] ; LOOP-DEL-NEXT: store i32 [[FINAL_VAL]], ptr [[C]], align 4 ; LOOP-DEL-NEXT: ret i32 [[FINAL_VAL]] ; ; MASKED-LABEL: define i32 @compare_bytes_simple3( ; MASKED-SAME: ptr [[A:%.*]], ptr [[B:%.*]], ptr [[C:%.*]], i32 [[D:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR0]] { ; MASKED-NEXT: entry: ; MASKED-NEXT: br label [[WHILE_COND:%.*]] ; MASKED: while.cond: ; MASKED-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ] ; MASKED-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1 ; MASKED-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]] ; MASKED-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; MASKED: while.body: ; MASKED-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64 ; MASKED-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; MASKED-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; MASKED-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; MASKED-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; MASKED-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]] ; MASKED-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; MASKED: while.end: ; MASKED-NEXT: [[FINAL_VAL:%.*]] = phi i32 [ [[D]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ] ; MASKED-NEXT: store i32 [[FINAL_VAL]], ptr [[C]], align 4 ; MASKED-NEXT: ret i32 [[FINAL_VAL]] ; entry: br label %while.cond while.cond: %len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ] %inc = add i32 %len.addr, 1 %cmp.not = icmp eq i32 %inc, %n br i1 %cmp.not, label %while.end, label %while.body while.body: %idxprom = zext i32 %inc to i64 %arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom %0 = load i8, ptr %arrayidx %arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom %1 = load i8, ptr %arrayidx2 %cmp.not2 = icmp eq i8 %0, %1 br i1 %cmp.not2, label %while.cond, label %while.end while.end: %final_val = phi i32 [ %d, %while.body ], [ %inc, %while.cond ] store i32 %final_val, ptr %c ret i32 %final_val } ; Disable the optimization when noimplicitfloat is present. define i32 @no_implicit_float(ptr %a, ptr %b, i32 %len, i32 %n) noimplicitfloat { ; CHECK-LABEL: define i32 @no_implicit_float( ; CHECK-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR1:[0-9]+]] { ; CHECK-NEXT: entry: ; CHECK-NEXT: br label [[WHILE_COND:%.*]] ; CHECK: while.cond: ; CHECK-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ] ; CHECK-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1 ; CHECK-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]] ; CHECK-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; CHECK: while.body: ; CHECK-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64 ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; CHECK-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; CHECK-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; CHECK-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]] ; CHECK-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; CHECK: while.end: ; CHECK-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ] ; CHECK-NEXT: ret i32 [[INC_LCSSA]] ; ; LMUL8-LABEL: define i32 @no_implicit_float( ; LMUL8-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR1:[0-9]+]] { ; LMUL8-NEXT: entry: ; LMUL8-NEXT: br label [[WHILE_COND:%.*]] ; LMUL8: while.cond: ; LMUL8-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ] ; LMUL8-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1 ; LMUL8-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]] ; LMUL8-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; LMUL8: while.body: ; LMUL8-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64 ; LMUL8-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; LMUL8-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; LMUL8-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; LMUL8-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; LMUL8-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]] ; LMUL8-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; LMUL8: while.end: ; LMUL8-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ] ; LMUL8-NEXT: ret i32 [[INC_LCSSA]] ; ; LOOP-DEL-LABEL: define i32 @no_implicit_float( ; LOOP-DEL-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR1:[0-9]+]] { ; LOOP-DEL-NEXT: entry: ; LOOP-DEL-NEXT: br label [[WHILE_COND:%.*]] ; LOOP-DEL: while.cond: ; LOOP-DEL-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ] ; LOOP-DEL-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1 ; LOOP-DEL-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]] ; LOOP-DEL-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; LOOP-DEL: while.body: ; LOOP-DEL-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64 ; LOOP-DEL-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; LOOP-DEL-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; LOOP-DEL-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; LOOP-DEL-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; LOOP-DEL-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]] ; LOOP-DEL-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; LOOP-DEL: while.end: ; LOOP-DEL-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ] ; LOOP-DEL-NEXT: ret i32 [[INC_LCSSA]] ; ; MASKED-LABEL: define i32 @no_implicit_float( ; MASKED-SAME: ptr [[A:%.*]], ptr [[B:%.*]], i32 [[LEN:%.*]], i32 [[N:%.*]]) #[[ATTR1:[0-9]+]] { ; MASKED-NEXT: entry: ; MASKED-NEXT: br label [[WHILE_COND:%.*]] ; MASKED: while.cond: ; MASKED-NEXT: [[LEN_ADDR:%.*]] = phi i32 [ [[LEN]], [[ENTRY:%.*]] ], [ [[INC:%.*]], [[WHILE_BODY:%.*]] ] ; MASKED-NEXT: [[INC]] = add i32 [[LEN_ADDR]], 1 ; MASKED-NEXT: [[CMP_NOT:%.*]] = icmp eq i32 [[INC]], [[N]] ; MASKED-NEXT: br i1 [[CMP_NOT]], label [[WHILE_END:%.*]], label [[WHILE_BODY]] ; MASKED: while.body: ; MASKED-NEXT: [[IDXPROM:%.*]] = zext i32 [[INC]] to i64 ; MASKED-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[A]], i64 [[IDXPROM]] ; MASKED-NEXT: [[TMP0:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; MASKED-NEXT: [[ARRAYIDX2:%.*]] = getelementptr inbounds i8, ptr [[B]], i64 [[IDXPROM]] ; MASKED-NEXT: [[TMP1:%.*]] = load i8, ptr [[ARRAYIDX2]], align 1 ; MASKED-NEXT: [[CMP_NOT2:%.*]] = icmp eq i8 [[TMP0]], [[TMP1]] ; MASKED-NEXT: br i1 [[CMP_NOT2]], label [[WHILE_COND]], label [[WHILE_END]] ; MASKED: while.end: ; MASKED-NEXT: [[INC_LCSSA:%.*]] = phi i32 [ [[INC]], [[WHILE_BODY]] ], [ [[INC]], [[WHILE_COND]] ] ; MASKED-NEXT: ret i32 [[INC_LCSSA]] ; entry: br label %while.cond while.cond: %len.addr = phi i32 [ %len, %entry ], [ %inc, %while.body ] %inc = add i32 %len.addr, 1 %cmp.not = icmp eq i32 %inc, %n br i1 %cmp.not, label %while.end, label %while.body while.body: %idxprom = zext i32 %inc to i64 %arrayidx = getelementptr inbounds i8, ptr %a, i64 %idxprom %0 = load i8, ptr %arrayidx %arrayidx2 = getelementptr inbounds i8, ptr %b, i64 %idxprom %1 = load i8, ptr %arrayidx2 %cmp.not2 = icmp eq i8 %0, %1 br i1 %cmp.not2, label %while.cond, label %while.end while.end: %inc.lcssa = phi i32 [ %inc, %while.body ], [ %inc, %while.cond ] ret i32 %inc.lcssa }