; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --check-globals none --version 4 ; RUN: opt -S < %s -p loop-vectorize -enable-early-exit-vectorization -force-vector-width=4 | FileCheck %s define i64 @early_exit_alignment_and_deref_known_via_assumption_with_constant_size(ptr noalias %p1, ptr noalias %p2) nofree nosync { ; CHECK-LABEL: define i64 @early_exit_alignment_and_deref_known_via_assumption_with_constant_size( ; CHECK-SAME: ptr noalias [[P1:%.*]], ptr noalias [[P2:%.*]]) #[[ATTR0:[0-9]+]] { ; CHECK-NEXT: entry: ; CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(ptr [[P1]], i64 4), "dereferenceable"(ptr [[P1]], i64 1024) ] ; CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(ptr [[P2]], i64 4), "dereferenceable"(ptr [[P2]], i64 1024) ] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ [[INDEX_NEXT:%.*]], [[LOOP_INC:%.*]] ], [ 0, [[ENTRY:%.*]] ] ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[P1]], i64 [[INDEX]] ; CHECK-NEXT: [[LD1:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds i8, ptr [[P2]], i64 [[INDEX]] ; CHECK-NEXT: [[LD2:%.*]] = load i8, ptr [[ARRAYIDX1]], align 1 ; CHECK-NEXT: [[CMP3:%.*]] = icmp eq i8 [[LD1]], [[LD2]] ; CHECK-NEXT: br i1 [[CMP3]], label [[LOOP_INC]], label [[LOOP_END:%.*]] ; CHECK: loop.inc: ; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 1 ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDEX_NEXT]], 1024 ; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[LOOP_END]] ; CHECK: loop.end: ; CHECK-NEXT: [[RETVAL:%.*]] = phi i64 [ [[INDEX]], [[LOOP]] ], [ -1, [[LOOP_INC]] ] ; CHECK-NEXT: ret i64 [[RETVAL]] ; entry: call void @llvm.assume(i1 true) [ "align"(ptr %p1, i64 4), "dereferenceable"(ptr %p1, i64 1024) ] call void @llvm.assume(i1 true) [ "align"(ptr %p2, i64 4), "dereferenceable"(ptr %p2, i64 1024) ] br label %loop loop: %index = phi i64 [ %index.next, %loop.inc ], [ 0, %entry ] %arrayidx = getelementptr inbounds i8, ptr %p1, i64 %index %ld1 = load i8, ptr %arrayidx, align 1 %arrayidx1 = getelementptr inbounds i8, ptr %p2, i64 %index %ld2 = load i8, ptr %arrayidx1, align 1 %cmp3 = icmp eq i8 %ld1, %ld2 br i1 %cmp3, label %loop.inc, label %loop.end loop.inc: %index.next = add i64 %index, 1 %exitcond = icmp ne i64 %index.next, 1024 br i1 %exitcond, label %loop, label %loop.end loop.end: %retval = phi i64 [ %index, %loop ], [ -1, %loop.inc ] ret i64 %retval } define i64 @early_exit_alignment_and_deref_via_assumption_with_constant_size_too_small(ptr noalias %p1, ptr noalias %p2) nofree nosync { ; CHECK-LABEL: define i64 @early_exit_alignment_and_deref_via_assumption_with_constant_size_too_small( ; CHECK-SAME: ptr noalias [[P1:%.*]], ptr noalias [[P2:%.*]]) #[[ATTR0]] { ; CHECK-NEXT: entry: ; CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(ptr [[P1]], i64 4), "dereferenceable"(ptr [[P1]], i64 1024) ] ; CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(ptr [[P2]], i64 4), "dereferenceable"(ptr [[P2]], i64 1024) ] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ [[INDEX_NEXT:%.*]], [[LOOP_INC:%.*]] ], [ 0, [[ENTRY:%.*]] ] ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[P1]], i64 [[INDEX]] ; CHECK-NEXT: [[LD1:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds i8, ptr [[P2]], i64 [[INDEX]] ; CHECK-NEXT: [[LD2:%.*]] = load i8, ptr [[ARRAYIDX1]], align 1 ; CHECK-NEXT: [[CMP3:%.*]] = icmp eq i8 [[LD1]], [[LD2]] ; CHECK-NEXT: br i1 [[CMP3]], label [[LOOP_INC]], label [[LOOP_END:%.*]] ; CHECK: loop.inc: ; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 1 ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDEX_NEXT]], 1025 ; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[LOOP_END]] ; CHECK: loop.end: ; CHECK-NEXT: [[RETVAL:%.*]] = phi i64 [ [[INDEX]], [[LOOP]] ], [ -1, [[LOOP_INC]] ] ; CHECK-NEXT: ret i64 [[RETVAL]] ; entry: call void @llvm.assume(i1 true) [ "align"(ptr %p1, i64 4), "dereferenceable"(ptr %p1, i64 1024) ] call void @llvm.assume(i1 true) [ "align"(ptr %p2, i64 4), "dereferenceable"(ptr %p2, i64 1024) ] br label %loop loop: %index = phi i64 [ %index.next, %loop.inc ], [ 0, %entry ] %arrayidx = getelementptr inbounds i8, ptr %p1, i64 %index %ld1 = load i8, ptr %arrayidx, align 1 %arrayidx1 = getelementptr inbounds i8, ptr %p2, i64 %index %ld2 = load i8, ptr %arrayidx1, align 1 %cmp3 = icmp eq i8 %ld1, %ld2 br i1 %cmp3, label %loop.inc, label %loop.end loop.inc: %index.next = add i64 %index, 1 %exitcond = icmp ne i64 %index.next, 1025 br i1 %exitcond, label %loop, label %loop.end loop.end: %retval = phi i64 [ %index, %loop ], [ -1, %loop.inc ] ret i64 %retval } define i64 @early_exit_alignment_and_deref_known_via_assumption(ptr noalias %p1, ptr noalias %p2, i64 %n) nofree nosync { ; CHECK-LABEL: define i64 @early_exit_alignment_and_deref_known_via_assumption( ; CHECK-SAME: ptr noalias [[P1:%.*]], ptr noalias [[P2:%.*]], i64 [[N:%.*]]) #[[ATTR0]] { ; CHECK-NEXT: entry: ; CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(ptr [[P1]], i64 4), "dereferenceable"(ptr [[P1]], i64 [[N]]) ] ; CHECK-NEXT: call void @llvm.assume(i1 true) [ "align"(ptr [[P2]], i64 4), "dereferenceable"(ptr [[P2]], i64 [[N]]) ] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ [[INDEX_NEXT:%.*]], [[LOOP_INC:%.*]] ], [ 0, [[ENTRY:%.*]] ] ; CHECK-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i8, ptr [[P1]], i64 [[INDEX]] ; CHECK-NEXT: [[LD1:%.*]] = load i8, ptr [[ARRAYIDX]], align 1 ; CHECK-NEXT: [[ARRAYIDX1:%.*]] = getelementptr inbounds i8, ptr [[P2]], i64 [[INDEX]] ; CHECK-NEXT: [[LD2:%.*]] = load i8, ptr [[ARRAYIDX1]], align 1 ; CHECK-NEXT: [[CMP3:%.*]] = icmp eq i8 [[LD1]], [[LD2]] ; CHECK-NEXT: br i1 [[CMP3]], label [[LOOP_INC]], label [[LOOP_END:%.*]] ; CHECK: loop.inc: ; CHECK-NEXT: [[INDEX_NEXT]] = add i64 [[INDEX]], 1 ; CHECK-NEXT: [[EXITCOND:%.*]] = icmp ne i64 [[INDEX_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[EXITCOND]], label [[LOOP]], label [[LOOP_END]] ; CHECK: loop.end: ; CHECK-NEXT: [[RETVAL:%.*]] = phi i64 [ [[INDEX]], [[LOOP]] ], [ -1, [[LOOP_INC]] ] ; CHECK-NEXT: ret i64 [[RETVAL]] ; entry: call void @llvm.assume(i1 true) [ "align"(ptr %p1, i64 4), "dereferenceable"(ptr %p1, i64 %n) ] call void @llvm.assume(i1 true) [ "align"(ptr %p2, i64 4), "dereferenceable"(ptr %p2, i64 %n) ] br label %loop loop: %index = phi i64 [ %index.next, %loop.inc ], [ 0, %entry ] %arrayidx = getelementptr inbounds i8, ptr %p1, i64 %index %ld1 = load i8, ptr %arrayidx, align 1 %arrayidx1 = getelementptr inbounds i8, ptr %p2, i64 %index %ld2 = load i8, ptr %arrayidx1, align 1 %cmp3 = icmp eq i8 %ld1, %ld2 br i1 %cmp3, label %loop.inc, label %loop.end loop.inc: %index.next = add i64 %index, 1 %exitcond = icmp ne i64 %index.next, %n br i1 %exitcond, label %loop, label %loop.end loop.end: %retval = phi i64 [ %index, %loop ], [ -1, %loop.inc ] ret i64 %retval }