; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -S -passes=loop-vectorize -force-tail-folding-style=none < %s | FileCheck %s --check-prefix=NONE ; RUN: opt -S -passes=loop-vectorize -force-tail-folding-style=data < %s | FileCheck %s --check-prefix=DATA ; RUN: opt -S -passes=loop-vectorize -force-tail-folding-style=data-without-lane-mask < %s | FileCheck %s --check-prefix=DATA_NO_LANEMASK ; RUN: opt -S -passes=loop-vectorize -force-tail-folding-style=data-and-control < %s | FileCheck %s --check-prefix=DATA_AND_CONTROL ; RUN: opt -S -passes=loop-vectorize -force-tail-folding-style=data-and-control-without-rt-check < %s | FileCheck %s --check-prefix=DATA_AND_CONTROL_NO_RT_CHECK target triple = "aarch64-unknown-linux-gnu" ; Test the different tail folding styles. define void @simple_memset_tailfold(i32 %val, ptr %ptr, i64 %n) "target-features" = "+sve" { ; NONE-LABEL: @simple_memset_tailfold( ; NONE-NEXT: entry: ; NONE-NEXT: [[UMAX:%.*]] = call i64 @llvm.umax.i64(i64 [[N:%.*]], i64 1) ; NONE-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64() ; NONE-NEXT: [[TMP1:%.*]] = shl nuw i64 [[TMP0]], 2 ; NONE-NEXT: [[MIN_ITERS_CHECK:%.*]] = icmp ult i64 [[UMAX]], [[TMP1]] ; NONE-NEXT: br i1 [[MIN_ITERS_CHECK]], label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] ; NONE: vector.ph: ; NONE-NEXT: [[TMP2:%.*]] = call i64 @llvm.vscale.i64() ; NONE-NEXT: [[TMP3:%.*]] = mul nuw i64 [[TMP2]], 4 ; NONE-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[UMAX]], [[TMP3]] ; NONE-NEXT: [[N_VEC:%.*]] = sub i64 [[UMAX]], [[N_MOD_VF]] ; NONE-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement poison, i32 [[VAL:%.*]], i64 0 ; NONE-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector [[BROADCAST_SPLATINSERT]], poison, zeroinitializer ; NONE-NEXT: br label [[VECTOR_BODY:%.*]] ; NONE: vector.body: ; NONE-NEXT: [[INDEX1:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT2:%.*]], [[VECTOR_BODY]] ] ; NONE-NEXT: [[TMP5:%.*]] = getelementptr i32, ptr [[PTR:%.*]], i64 [[INDEX1]] ; NONE-NEXT: store [[BROADCAST_SPLAT]], ptr [[TMP5]], align 4 ; NONE-NEXT: [[INDEX_NEXT2]] = add nuw i64 [[INDEX1]], [[TMP3]] ; NONE-NEXT: [[TMP9:%.*]] = icmp eq i64 [[INDEX_NEXT2]], [[N_VEC]] ; NONE-NEXT: br i1 [[TMP9]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] ; NONE: middle.block: ; NONE-NEXT: [[CMP_N:%.*]] = icmp eq i64 [[UMAX]], [[N_VEC]] ; NONE-NEXT: br i1 [[CMP_N]], label [[WHILE_END_LOOPEXIT:%.*]], label [[SCALAR_PH]] ; NONE: scalar.ph: ; NONE-NEXT: [[BC_RESUME_VAL:%.*]] = phi i64 [ [[N_VEC]], [[MIDDLE_BLOCK]] ], [ 0, [[ENTRY:%.*]] ] ; NONE-NEXT: br label [[WHILE_BODY:%.*]] ; NONE: while.body: ; NONE-NEXT: [[INDEX:%.*]] = phi i64 [ [[INDEX_NEXT:%.*]], [[WHILE_BODY]] ], [ [[BC_RESUME_VAL]], [[SCALAR_PH]] ] ; NONE-NEXT: [[GEP:%.*]] = getelementptr i32, ptr [[PTR]], i64 [[INDEX]] ; NONE-NEXT: store i32 [[VAL]], ptr [[GEP]], align 4 ; NONE-NEXT: [[INDEX_NEXT]] = add nsw i64 [[INDEX]], 1 ; NONE-NEXT: [[CMP10:%.*]] = icmp ult i64 [[INDEX_NEXT]], [[N]] ; NONE-NEXT: br i1 [[CMP10]], label [[WHILE_BODY]], label [[WHILE_END_LOOPEXIT]], !llvm.loop [[LOOP3:![0-9]+]] ; NONE: while.end.loopexit: ; NONE-NEXT: ret void ; ; DATA-LABEL: @simple_memset_tailfold( ; DATA-NEXT: entry: ; DATA-NEXT: [[UMAX:%.*]] = call i64 @llvm.umax.i64(i64 [[N:%.*]], i64 1) ; DATA-NEXT: br label [[VECTOR_PH:%.*]] ; DATA: vector.ph: ; DATA-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64() ; DATA-NEXT: [[TMP5:%.*]] = mul nuw i64 [[TMP4]], 4 ; DATA-NEXT: [[TMP8:%.*]] = sub i64 [[TMP5]], 1 ; DATA-NEXT: [[N_RND_UP:%.*]] = add i64 [[UMAX]], [[TMP8]] ; DATA-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP5]] ; DATA-NEXT: [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]] ; DATA-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement poison, i32 [[VAL:%.*]], i64 0 ; DATA-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector [[BROADCAST_SPLATINSERT]], poison, zeroinitializer ; DATA-NEXT: br label [[VECTOR_BODY:%.*]] ; DATA: vector.body: ; DATA-NEXT: [[INDEX1:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT2:%.*]], [[VECTOR_BODY]] ] ; DATA-NEXT: [[ACTIVE_LANE_MASK:%.*]] = call @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX1]], i64 [[UMAX]]) ; DATA-NEXT: [[TMP10:%.*]] = getelementptr i32, ptr [[PTR:%.*]], i64 [[INDEX1]] ; DATA-NEXT: call void @llvm.masked.store.nxv4i32.p0( [[BROADCAST_SPLAT]], ptr [[TMP10]], i32 4, [[ACTIVE_LANE_MASK]]) ; DATA-NEXT: [[INDEX_NEXT2]] = add i64 [[INDEX1]], [[TMP5]] ; DATA-NEXT: [[TMP14:%.*]] = icmp eq i64 [[INDEX_NEXT2]], [[N_VEC]] ; DATA-NEXT: br i1 [[TMP14]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] ; DATA: middle.block: ; DATA-NEXT: br label [[WHILE_END_LOOPEXIT:%.*]] ; DATA: scalar.ph: ; DATA-NEXT: br label [[WHILE_BODY:%.*]] ; DATA: while.body: ; DATA-NEXT: [[INDEX:%.*]] = phi i64 [ [[INDEX_NEXT:%.*]], [[WHILE_BODY]] ], [ 0, [[SCALAR_PH:%.*]] ] ; DATA-NEXT: [[GEP:%.*]] = getelementptr i32, ptr [[PTR]], i64 [[INDEX]] ; DATA-NEXT: store i32 [[VAL]], ptr [[GEP]], align 4 ; DATA-NEXT: [[INDEX_NEXT]] = add nsw i64 [[INDEX]], 1 ; DATA-NEXT: [[CMP10:%.*]] = icmp ult i64 [[INDEX_NEXT]], [[N]] ; DATA-NEXT: br i1 [[CMP10]], label [[WHILE_BODY]], label [[WHILE_END_LOOPEXIT]], !llvm.loop [[LOOP3:![0-9]+]] ; DATA: while.end.loopexit: ; DATA-NEXT: ret void ; ; DATA_NO_LANEMASK-LABEL: @simple_memset_tailfold( ; DATA_NO_LANEMASK-NEXT: entry: ; DATA_NO_LANEMASK-NEXT: [[UMAX:%.*]] = call i64 @llvm.umax.i64(i64 [[N:%.*]], i64 1) ; DATA_NO_LANEMASK-NEXT: br label [[VECTOR_PH:%.*]] ; DATA_NO_LANEMASK: vector.ph: ; DATA_NO_LANEMASK-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64() ; DATA_NO_LANEMASK-NEXT: [[TMP5:%.*]] = mul nuw i64 [[TMP4]], 4 ; DATA_NO_LANEMASK-NEXT: [[TMP8:%.*]] = sub i64 [[TMP5]], 1 ; DATA_NO_LANEMASK-NEXT: [[N_RND_UP:%.*]] = add i64 [[UMAX]], [[TMP8]] ; DATA_NO_LANEMASK-NEXT: [[N_MOD_VF:%.*]] = urem i64 [[N_RND_UP]], [[TMP5]] ; DATA_NO_LANEMASK-NEXT: [[N_VEC:%.*]] = sub i64 [[N_RND_UP]], [[N_MOD_VF]] ; DATA_NO_LANEMASK-NEXT: [[TRIP_COUNT_MINUS_1:%.*]] = sub i64 [[UMAX]], 1 ; DATA_NO_LANEMASK-NEXT: [[BROADCAST_SPLATINSERT5:%.*]] = insertelement poison, i64 [[TRIP_COUNT_MINUS_1]], i64 0 ; DATA_NO_LANEMASK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector [[BROADCAST_SPLATINSERT5]], poison, zeroinitializer ; DATA_NO_LANEMASK-NEXT: [[BROADCAST_SPLATINSERT1:%.*]] = insertelement poison, i32 [[VAL:%.*]], i64 0 ; DATA_NO_LANEMASK-NEXT: [[BROADCAST_SPLAT5:%.*]] = shufflevector [[BROADCAST_SPLATINSERT1]], poison, zeroinitializer ; DATA_NO_LANEMASK-NEXT: br label [[VECTOR_BODY:%.*]] ; DATA_NO_LANEMASK: vector.body: ; DATA_NO_LANEMASK-NEXT: [[INDEX1:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT6:%.*]], [[VECTOR_BODY]] ] ; DATA_NO_LANEMASK-NEXT: [[BROADCAST_SPLATINSERT2:%.*]] = insertelement poison, i64 [[INDEX1]], i64 0 ; DATA_NO_LANEMASK-NEXT: [[BROADCAST_SPLAT3:%.*]] = shufflevector [[BROADCAST_SPLATINSERT2]], poison, zeroinitializer ; DATA_NO_LANEMASK-NEXT: [[TMP10:%.*]] = call @llvm.stepvector.nxv4i64() ; DATA_NO_LANEMASK-NEXT: [[TMP11:%.*]] = add zeroinitializer, [[TMP10]] ; DATA_NO_LANEMASK-NEXT: [[VEC_IV:%.*]] = add [[BROADCAST_SPLAT3]], [[TMP11]] ; DATA_NO_LANEMASK-NEXT: [[TMP12:%.*]] = icmp ule [[VEC_IV]], [[BROADCAST_SPLAT]] ; DATA_NO_LANEMASK-NEXT: [[TMP13:%.*]] = getelementptr i32, ptr [[PTR:%.*]], i64 [[INDEX1]] ; DATA_NO_LANEMASK-NEXT: call void @llvm.masked.store.nxv4i32.p0( [[BROADCAST_SPLAT5]], ptr [[TMP13]], i32 4, [[TMP12]]) ; DATA_NO_LANEMASK-NEXT: [[INDEX_NEXT6]] = add i64 [[INDEX1]], [[TMP5]] ; DATA_NO_LANEMASK-NEXT: [[TMP17:%.*]] = icmp eq i64 [[INDEX_NEXT6]], [[N_VEC]] ; DATA_NO_LANEMASK-NEXT: br i1 [[TMP17]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] ; DATA_NO_LANEMASK: middle.block: ; DATA_NO_LANEMASK-NEXT: br label [[WHILE_END_LOOPEXIT:%.*]] ; DATA_NO_LANEMASK: scalar.ph: ; DATA_NO_LANEMASK-NEXT: br label [[WHILE_BODY:%.*]] ; DATA_NO_LANEMASK: while.body: ; DATA_NO_LANEMASK-NEXT: [[INDEX:%.*]] = phi i64 [ [[INDEX_NEXT:%.*]], [[WHILE_BODY]] ], [ 0, [[SCALAR_PH:%.*]] ] ; DATA_NO_LANEMASK-NEXT: [[GEP:%.*]] = getelementptr i32, ptr [[PTR]], i64 [[INDEX]] ; DATA_NO_LANEMASK-NEXT: store i32 [[VAL]], ptr [[GEP]], align 4 ; DATA_NO_LANEMASK-NEXT: [[INDEX_NEXT]] = add nsw i64 [[INDEX]], 1 ; DATA_NO_LANEMASK-NEXT: [[CMP10:%.*]] = icmp ult i64 [[INDEX_NEXT]], [[N]] ; DATA_NO_LANEMASK-NEXT: br i1 [[CMP10]], label [[WHILE_BODY]], label [[WHILE_END_LOOPEXIT]], !llvm.loop [[LOOP3:![0-9]+]] ; DATA_NO_LANEMASK: while.end.loopexit: ; DATA_NO_LANEMASK-NEXT: ret void ; ; DATA_AND_CONTROL-LABEL: @simple_memset_tailfold( ; DATA_AND_CONTROL-NEXT: entry: ; DATA_AND_CONTROL-NEXT: [[UMAX:%.*]] = call i64 @llvm.umax.i64(i64 [[N:%.*]], i64 1) ; DATA_AND_CONTROL-NEXT: br label [[VECTOR_PH:%.*]] ; DATA_AND_CONTROL: vector.ph: ; DATA_AND_CONTROL-NEXT: [[TMP4:%.*]] = call i64 @llvm.vscale.i64() ; DATA_AND_CONTROL-NEXT: [[TMP5:%.*]] = mul nuw i64 [[TMP4]], 4 ; DATA_AND_CONTROL-NEXT: [[ACTIVE_LANE_MASK_ENTRY:%.*]] = call @llvm.get.active.lane.mask.nxv4i1.i64(i64 0, i64 [[UMAX]]) ; DATA_AND_CONTROL-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement poison, i32 [[VAL:%.*]], i64 0 ; DATA_AND_CONTROL-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector [[BROADCAST_SPLATINSERT]], poison, zeroinitializer ; DATA_AND_CONTROL-NEXT: br label [[VECTOR_BODY:%.*]] ; DATA_AND_CONTROL: vector.body: ; DATA_AND_CONTROL-NEXT: [[INDEX1:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT2:%.*]], [[VECTOR_BODY]] ] ; DATA_AND_CONTROL-NEXT: [[ACTIVE_LANE_MASK:%.*]] = phi [ [[ACTIVE_LANE_MASK_ENTRY]], [[VECTOR_PH]] ], [ [[ACTIVE_LANE_MASK_NEXT:%.*]], [[VECTOR_BODY]] ] ; DATA_AND_CONTROL-NEXT: [[TMP10:%.*]] = getelementptr i32, ptr [[PTR:%.*]], i64 [[INDEX1]] ; DATA_AND_CONTROL-NEXT: call void @llvm.masked.store.nxv4i32.p0( [[BROADCAST_SPLAT]], ptr [[TMP10]], i32 4, [[ACTIVE_LANE_MASK]]) ; DATA_AND_CONTROL-NEXT: [[INDEX_NEXT2]] = add i64 [[INDEX1]], [[TMP5]] ; DATA_AND_CONTROL-NEXT: [[ACTIVE_LANE_MASK_NEXT]] = call @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX_NEXT2]], i64 [[UMAX]]) ; DATA_AND_CONTROL-NEXT: [[TMP6:%.*]] = extractelement [[ACTIVE_LANE_MASK_NEXT]], i32 0 ; DATA_AND_CONTROL-NEXT: [[TMP7:%.*]] = xor i1 [[TMP6]], true ; DATA_AND_CONTROL-NEXT: br i1 [[TMP7]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] ; DATA_AND_CONTROL: middle.block: ; DATA_AND_CONTROL-NEXT: br label [[WHILE_END_LOOPEXIT:%.*]] ; DATA_AND_CONTROL: scalar.ph: ; DATA_AND_CONTROL-NEXT: br label [[WHILE_BODY:%.*]] ; DATA_AND_CONTROL: while.body: ; DATA_AND_CONTROL-NEXT: [[INDEX:%.*]] = phi i64 [ [[INDEX_NEXT:%.*]], [[WHILE_BODY]] ], [ 0, [[SCALAR_PH:%.*]] ] ; DATA_AND_CONTROL-NEXT: [[GEP:%.*]] = getelementptr i32, ptr [[PTR]], i64 [[INDEX]] ; DATA_AND_CONTROL-NEXT: store i32 [[VAL]], ptr [[GEP]], align 4 ; DATA_AND_CONTROL-NEXT: [[INDEX_NEXT]] = add nsw i64 [[INDEX]], 1 ; DATA_AND_CONTROL-NEXT: [[CMP10:%.*]] = icmp ult i64 [[INDEX_NEXT]], [[N]] ; DATA_AND_CONTROL-NEXT: br i1 [[CMP10]], label [[WHILE_BODY]], label [[WHILE_END_LOOPEXIT]], !llvm.loop [[LOOP3:![0-9]+]] ; DATA_AND_CONTROL: while.end.loopexit: ; DATA_AND_CONTROL-NEXT: ret void ; ; DATA_AND_CONTROL_NO_RT_CHECK-LABEL: @simple_memset_tailfold( ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: entry: ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[UMAX:%.*]] = call i64 @llvm.umax.i64(i64 [[N:%.*]], i64 1) ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: br label [[VECTOR_PH:%.*]] ; DATA_AND_CONTROL_NO_RT_CHECK: vector.ph: ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[TMP0:%.*]] = call i64 @llvm.vscale.i64() ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[TMP1:%.*]] = mul nuw i64 [[TMP0]], 4 ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[TMP5:%.*]] = call i64 @llvm.vscale.i64() ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[TMP6:%.*]] = shl nuw i64 [[TMP5]], 2 ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[TMP7:%.*]] = sub i64 [[UMAX]], [[TMP6]] ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[TMP8:%.*]] = icmp ugt i64 [[UMAX]], [[TMP6]] ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[TMP9:%.*]] = select i1 [[TMP8]], i64 [[TMP7]], i64 0 ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[ACTIVE_LANE_MASK_ENTRY:%.*]] = call @llvm.get.active.lane.mask.nxv4i1.i64(i64 0, i64 [[UMAX]]) ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[BROADCAST_SPLATINSERT:%.*]] = insertelement poison, i32 [[VAL:%.*]], i64 0 ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[BROADCAST_SPLAT:%.*]] = shufflevector [[BROADCAST_SPLATINSERT]], poison, zeroinitializer ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: br label [[VECTOR_BODY:%.*]] ; DATA_AND_CONTROL_NO_RT_CHECK: vector.body: ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[INDEX1:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT2:%.*]], [[VECTOR_BODY]] ] ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[ACTIVE_LANE_MASK:%.*]] = phi [ [[ACTIVE_LANE_MASK_ENTRY]], [[VECTOR_PH]] ], [ [[ACTIVE_LANE_MASK_NEXT:%.*]], [[VECTOR_BODY]] ] ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[TMP11:%.*]] = getelementptr i32, ptr [[PTR:%.*]], i64 [[INDEX1]] ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: call void @llvm.masked.store.nxv4i32.p0( [[BROADCAST_SPLAT]], ptr [[TMP11]], i32 4, [[ACTIVE_LANE_MASK]]) ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[INDEX_NEXT2]] = add i64 [[INDEX1]], [[TMP1]] ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[ACTIVE_LANE_MASK_NEXT]] = call @llvm.get.active.lane.mask.nxv4i1.i64(i64 [[INDEX1]], i64 [[TMP9]]) ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[TMP15:%.*]] = extractelement [[ACTIVE_LANE_MASK_NEXT]], i32 0 ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[TMP12:%.*]] = xor i1 [[TMP15]], true ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: br i1 [[TMP12]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] ; DATA_AND_CONTROL_NO_RT_CHECK: middle.block: ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: br label [[WHILE_END_LOOPEXIT:%.*]] ; DATA_AND_CONTROL_NO_RT_CHECK: scalar.ph: ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: br label [[WHILE_BODY:%.*]] ; DATA_AND_CONTROL_NO_RT_CHECK: while.body: ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[INDEX:%.*]] = phi i64 [ [[INDEX_NEXT:%.*]], [[WHILE_BODY]] ], [ 0, [[SCALAR_PH:%.*]] ] ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[GEP:%.*]] = getelementptr i32, ptr [[PTR]], i64 [[INDEX]] ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: store i32 [[VAL]], ptr [[GEP]], align 4 ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[INDEX_NEXT]] = add nsw i64 [[INDEX]], 1 ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: [[CMP10:%.*]] = icmp ult i64 [[INDEX_NEXT]], [[N]] ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: br i1 [[CMP10]], label [[WHILE_BODY]], label [[WHILE_END_LOOPEXIT]], !llvm.loop [[LOOP3:![0-9]+]] ; DATA_AND_CONTROL_NO_RT_CHECK: while.end.loopexit: ; DATA_AND_CONTROL_NO_RT_CHECK-NEXT: ret void ; entry: br label %while.body while.body: ; preds = %while.body, %entry %index = phi i64 [ %index.next, %while.body ], [ 0, %entry ] %gep = getelementptr i32, ptr %ptr, i64 %index store i32 %val, ptr %gep %index.next = add nsw i64 %index, 1 %cmp10 = icmp ult i64 %index.next, %n br i1 %cmp10, label %while.body, label %while.end.loopexit, !llvm.loop !0 while.end.loopexit: ; preds = %while.body ret void } !0 = distinct !{!0, !1, !2, !3, !4} !1 = !{!"llvm.loop.vectorize.predicate.enable", i1 true} !2 = !{!"llvm.loop.vectorize.scalable.enable", i1 true} !3 = !{!"llvm.loop.interleave.count", i32 1} !4 = !{!"llvm.loop.vectorize.width", i32 4}