| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py |
| ; RUN: opt -S -mtriple=x86_64-pc_linux -loop-vectorize -instcombine < %s | FileCheck %s --check-prefix=SSE |
| ; RUN: opt -S -mtriple=x86_64-pc_linux -loop-vectorize -instcombine -mcpu=sandybridge < %s | FileCheck %s --check-prefix=AVX1 |
| ; RUN: opt -S -mtriple=x86_64-pc_linux -loop-vectorize -instcombine -mcpu=haswell < %s | FileCheck %s --check-prefix=AVX2 |
| ; RUN: opt -S -mtriple=x86_64-pc_linux -loop-vectorize -instcombine -mcpu=slm < %s | FileCheck %s --check-prefix=SSE |
| ; RUN: opt -S -mtriple=x86_64-pc_linux -loop-vectorize -instcombine -mcpu=atom < %s | FileCheck %s --check-prefix=ATOM |
| |
| define void @foo(i32* noalias nocapture %a, i32* noalias nocapture readonly %b) { |
| ; SSE-LABEL: @foo( |
| ; SSE-NEXT: entry: |
| ; SSE-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] |
| ; SSE: vector.ph: |
| ; SSE-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; SSE: vector.body: |
| ; SSE-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; SSE-NEXT: [[TMP0:%.*]] = shl nsw i64 [[INDEX]], 1 |
| ; SSE-NEXT: [[TMP1:%.*]] = shl i64 [[INDEX]], 1 |
| ; SSE-NEXT: [[TMP2:%.*]] = or i64 [[TMP1]], 8 |
| ; SSE-NEXT: [[TMP3:%.*]] = getelementptr inbounds i32, i32* [[B:%.*]], i64 [[TMP0]] |
| ; SSE-NEXT: [[TMP4:%.*]] = getelementptr inbounds i32, i32* [[B]], i64 [[TMP2]] |
| ; SSE-NEXT: [[TMP5:%.*]] = bitcast i32* [[TMP3]] to <8 x i32>* |
| ; SSE-NEXT: [[TMP6:%.*]] = bitcast i32* [[TMP4]] to <8 x i32>* |
| ; SSE-NEXT: [[WIDE_VEC:%.*]] = load <8 x i32>, <8 x i32>* [[TMP5]], align 4 |
| ; SSE-NEXT: [[WIDE_VEC1:%.*]] = load <8 x i32>, <8 x i32>* [[TMP6]], align 4 |
| ; SSE-NEXT: [[STRIDED_VEC:%.*]] = shufflevector <8 x i32> [[WIDE_VEC]], <8 x i32> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6> |
| ; SSE-NEXT: [[STRIDED_VEC2:%.*]] = shufflevector <8 x i32> [[WIDE_VEC1]], <8 x i32> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6> |
| ; SSE-NEXT: [[STRIDED_VEC3:%.*]] = shufflevector <8 x i32> [[WIDE_VEC]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7> |
| ; SSE-NEXT: [[STRIDED_VEC4:%.*]] = shufflevector <8 x i32> [[WIDE_VEC1]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7> |
| ; SSE-NEXT: [[TMP7:%.*]] = add nsw <4 x i32> [[STRIDED_VEC3]], [[STRIDED_VEC]] |
| ; SSE-NEXT: [[TMP8:%.*]] = add nsw <4 x i32> [[STRIDED_VEC4]], [[STRIDED_VEC2]] |
| ; SSE-NEXT: [[TMP9:%.*]] = getelementptr inbounds i32, i32* [[A:%.*]], i64 [[INDEX]] |
| ; SSE-NEXT: [[TMP10:%.*]] = bitcast i32* [[TMP9]] to <4 x i32>* |
| ; SSE-NEXT: store <4 x i32> [[TMP7]], <4 x i32>* [[TMP10]], align 4 |
| ; SSE-NEXT: [[TMP11:%.*]] = getelementptr inbounds i32, i32* [[TMP9]], i64 4 |
| ; SSE-NEXT: [[TMP12:%.*]] = bitcast i32* [[TMP11]] to <4 x i32>* |
| ; SSE-NEXT: store <4 x i32> [[TMP8]], <4 x i32>* [[TMP12]], align 4 |
| ; SSE-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8 |
| ; SSE-NEXT: [[TMP13:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024 |
| ; SSE-NEXT: br i1 [[TMP13]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] |
| ; SSE: middle.block: |
| ; SSE-NEXT: br i1 true, label [[FOR_COND_CLEANUP:%.*]], label [[SCALAR_PH]] |
| ; SSE: scalar.ph: |
| ; SSE-NEXT: br label [[FOR_BODY:%.*]] |
| ; SSE: for.cond.cleanup: |
| ; SSE-NEXT: ret void |
| ; SSE: for.body: |
| ; SSE-NEXT: br i1 undef, label [[FOR_COND_CLEANUP]], label [[FOR_BODY]], !llvm.loop [[LOOP2:![0-9]+]] |
| ; |
| ; AVX1-LABEL: @foo( |
| ; AVX1-NEXT: entry: |
| ; AVX1-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] |
| ; AVX1: vector.ph: |
| ; AVX1-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; AVX1: vector.body: |
| ; AVX1-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; AVX1-NEXT: [[TMP0:%.*]] = shl nsw i64 [[INDEX]], 1 |
| ; AVX1-NEXT: [[TMP1:%.*]] = shl i64 [[INDEX]], 1 |
| ; AVX1-NEXT: [[TMP2:%.*]] = or i64 [[TMP1]], 8 |
| ; AVX1-NEXT: [[TMP3:%.*]] = shl i64 [[INDEX]], 1 |
| ; AVX1-NEXT: [[TMP4:%.*]] = or i64 [[TMP3]], 16 |
| ; AVX1-NEXT: [[TMP5:%.*]] = shl i64 [[INDEX]], 1 |
| ; AVX1-NEXT: [[TMP6:%.*]] = or i64 [[TMP5]], 24 |
| ; AVX1-NEXT: [[TMP7:%.*]] = getelementptr inbounds i32, i32* [[B:%.*]], i64 [[TMP0]] |
| ; AVX1-NEXT: [[TMP8:%.*]] = getelementptr inbounds i32, i32* [[B]], i64 [[TMP2]] |
| ; AVX1-NEXT: [[TMP9:%.*]] = getelementptr inbounds i32, i32* [[B]], i64 [[TMP4]] |
| ; AVX1-NEXT: [[TMP10:%.*]] = getelementptr inbounds i32, i32* [[B]], i64 [[TMP6]] |
| ; AVX1-NEXT: [[TMP11:%.*]] = bitcast i32* [[TMP7]] to <8 x i32>* |
| ; AVX1-NEXT: [[TMP12:%.*]] = bitcast i32* [[TMP8]] to <8 x i32>* |
| ; AVX1-NEXT: [[TMP13:%.*]] = bitcast i32* [[TMP9]] to <8 x i32>* |
| ; AVX1-NEXT: [[TMP14:%.*]] = bitcast i32* [[TMP10]] to <8 x i32>* |
| ; AVX1-NEXT: [[WIDE_VEC:%.*]] = load <8 x i32>, <8 x i32>* [[TMP11]], align 4 |
| ; AVX1-NEXT: [[WIDE_VEC1:%.*]] = load <8 x i32>, <8 x i32>* [[TMP12]], align 4 |
| ; AVX1-NEXT: [[WIDE_VEC2:%.*]] = load <8 x i32>, <8 x i32>* [[TMP13]], align 4 |
| ; AVX1-NEXT: [[WIDE_VEC3:%.*]] = load <8 x i32>, <8 x i32>* [[TMP14]], align 4 |
| ; AVX1-NEXT: [[STRIDED_VEC:%.*]] = shufflevector <8 x i32> [[WIDE_VEC]], <8 x i32> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6> |
| ; AVX1-NEXT: [[STRIDED_VEC4:%.*]] = shufflevector <8 x i32> [[WIDE_VEC1]], <8 x i32> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6> |
| ; AVX1-NEXT: [[STRIDED_VEC5:%.*]] = shufflevector <8 x i32> [[WIDE_VEC2]], <8 x i32> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6> |
| ; AVX1-NEXT: [[STRIDED_VEC6:%.*]] = shufflevector <8 x i32> [[WIDE_VEC3]], <8 x i32> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6> |
| ; AVX1-NEXT: [[STRIDED_VEC7:%.*]] = shufflevector <8 x i32> [[WIDE_VEC]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7> |
| ; AVX1-NEXT: [[STRIDED_VEC8:%.*]] = shufflevector <8 x i32> [[WIDE_VEC1]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7> |
| ; AVX1-NEXT: [[STRIDED_VEC9:%.*]] = shufflevector <8 x i32> [[WIDE_VEC2]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7> |
| ; AVX1-NEXT: [[STRIDED_VEC10:%.*]] = shufflevector <8 x i32> [[WIDE_VEC3]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7> |
| ; AVX1-NEXT: [[TMP15:%.*]] = add nsw <4 x i32> [[STRIDED_VEC7]], [[STRIDED_VEC]] |
| ; AVX1-NEXT: [[TMP16:%.*]] = add nsw <4 x i32> [[STRIDED_VEC8]], [[STRIDED_VEC4]] |
| ; AVX1-NEXT: [[TMP17:%.*]] = add nsw <4 x i32> [[STRIDED_VEC9]], [[STRIDED_VEC5]] |
| ; AVX1-NEXT: [[TMP18:%.*]] = add nsw <4 x i32> [[STRIDED_VEC10]], [[STRIDED_VEC6]] |
| ; AVX1-NEXT: [[TMP19:%.*]] = getelementptr inbounds i32, i32* [[A:%.*]], i64 [[INDEX]] |
| ; AVX1-NEXT: [[TMP20:%.*]] = bitcast i32* [[TMP19]] to <4 x i32>* |
| ; AVX1-NEXT: store <4 x i32> [[TMP15]], <4 x i32>* [[TMP20]], align 4 |
| ; AVX1-NEXT: [[TMP21:%.*]] = getelementptr inbounds i32, i32* [[TMP19]], i64 4 |
| ; AVX1-NEXT: [[TMP22:%.*]] = bitcast i32* [[TMP21]] to <4 x i32>* |
| ; AVX1-NEXT: store <4 x i32> [[TMP16]], <4 x i32>* [[TMP22]], align 4 |
| ; AVX1-NEXT: [[TMP23:%.*]] = getelementptr inbounds i32, i32* [[TMP19]], i64 8 |
| ; AVX1-NEXT: [[TMP24:%.*]] = bitcast i32* [[TMP23]] to <4 x i32>* |
| ; AVX1-NEXT: store <4 x i32> [[TMP17]], <4 x i32>* [[TMP24]], align 4 |
| ; AVX1-NEXT: [[TMP25:%.*]] = getelementptr inbounds i32, i32* [[TMP19]], i64 12 |
| ; AVX1-NEXT: [[TMP26:%.*]] = bitcast i32* [[TMP25]] to <4 x i32>* |
| ; AVX1-NEXT: store <4 x i32> [[TMP18]], <4 x i32>* [[TMP26]], align 4 |
| ; AVX1-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16 |
| ; AVX1-NEXT: [[TMP27:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024 |
| ; AVX1-NEXT: br i1 [[TMP27]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] |
| ; AVX1: middle.block: |
| ; AVX1-NEXT: br i1 true, label [[FOR_COND_CLEANUP:%.*]], label [[SCALAR_PH]] |
| ; AVX1: scalar.ph: |
| ; AVX1-NEXT: br label [[FOR_BODY:%.*]] |
| ; AVX1: for.cond.cleanup: |
| ; AVX1-NEXT: ret void |
| ; AVX1: for.body: |
| ; AVX1-NEXT: br i1 undef, label [[FOR_COND_CLEANUP]], label [[FOR_BODY]], !llvm.loop [[LOOP2:![0-9]+]] |
| ; |
| ; AVX2-LABEL: @foo( |
| ; AVX2-NEXT: entry: |
| ; AVX2-NEXT: br i1 false, label [[SCALAR_PH:%.*]], label [[VECTOR_PH:%.*]] |
| ; AVX2: vector.ph: |
| ; AVX2-NEXT: br label [[VECTOR_BODY:%.*]] |
| ; AVX2: vector.body: |
| ; AVX2-NEXT: [[INDEX:%.*]] = phi i64 [ 0, [[VECTOR_PH]] ], [ [[INDEX_NEXT:%.*]], [[VECTOR_BODY]] ] |
| ; AVX2-NEXT: [[TMP0:%.*]] = shl nsw i64 [[INDEX]], 1 |
| ; AVX2-NEXT: [[TMP1:%.*]] = shl i64 [[INDEX]], 1 |
| ; AVX2-NEXT: [[TMP2:%.*]] = or i64 [[TMP1]], 16 |
| ; AVX2-NEXT: [[TMP3:%.*]] = shl i64 [[INDEX]], 1 |
| ; AVX2-NEXT: [[TMP4:%.*]] = or i64 [[TMP3]], 32 |
| ; AVX2-NEXT: [[TMP5:%.*]] = shl i64 [[INDEX]], 1 |
| ; AVX2-NEXT: [[TMP6:%.*]] = or i64 [[TMP5]], 48 |
| ; AVX2-NEXT: [[TMP7:%.*]] = getelementptr inbounds i32, i32* [[B:%.*]], i64 [[TMP0]] |
| ; AVX2-NEXT: [[TMP8:%.*]] = getelementptr inbounds i32, i32* [[B]], i64 [[TMP2]] |
| ; AVX2-NEXT: [[TMP9:%.*]] = getelementptr inbounds i32, i32* [[B]], i64 [[TMP4]] |
| ; AVX2-NEXT: [[TMP10:%.*]] = getelementptr inbounds i32, i32* [[B]], i64 [[TMP6]] |
| ; AVX2-NEXT: [[TMP11:%.*]] = bitcast i32* [[TMP7]] to <16 x i32>* |
| ; AVX2-NEXT: [[TMP12:%.*]] = bitcast i32* [[TMP8]] to <16 x i32>* |
| ; AVX2-NEXT: [[TMP13:%.*]] = bitcast i32* [[TMP9]] to <16 x i32>* |
| ; AVX2-NEXT: [[TMP14:%.*]] = bitcast i32* [[TMP10]] to <16 x i32>* |
| ; AVX2-NEXT: [[WIDE_VEC:%.*]] = load <16 x i32>, <16 x i32>* [[TMP11]], align 4 |
| ; AVX2-NEXT: [[WIDE_VEC1:%.*]] = load <16 x i32>, <16 x i32>* [[TMP12]], align 4 |
| ; AVX2-NEXT: [[WIDE_VEC2:%.*]] = load <16 x i32>, <16 x i32>* [[TMP13]], align 4 |
| ; AVX2-NEXT: [[WIDE_VEC3:%.*]] = load <16 x i32>, <16 x i32>* [[TMP14]], align 4 |
| ; AVX2-NEXT: [[STRIDED_VEC:%.*]] = shufflevector <16 x i32> [[WIDE_VEC]], <16 x i32> poison, <8 x i32> <i32 0, i32 2, i32 4, i32 6, i32 8, i32 10, i32 12, i32 14> |
| ; AVX2-NEXT: [[STRIDED_VEC4:%.*]] = shufflevector <16 x i32> [[WIDE_VEC1]], <16 x i32> poison, <8 x i32> <i32 0, i32 2, i32 4, i32 6, i32 8, i32 10, i32 12, i32 14> |
| ; AVX2-NEXT: [[STRIDED_VEC5:%.*]] = shufflevector <16 x i32> [[WIDE_VEC2]], <16 x i32> poison, <8 x i32> <i32 0, i32 2, i32 4, i32 6, i32 8, i32 10, i32 12, i32 14> |
| ; AVX2-NEXT: [[STRIDED_VEC6:%.*]] = shufflevector <16 x i32> [[WIDE_VEC3]], <16 x i32> poison, <8 x i32> <i32 0, i32 2, i32 4, i32 6, i32 8, i32 10, i32 12, i32 14> |
| ; AVX2-NEXT: [[STRIDED_VEC7:%.*]] = shufflevector <16 x i32> [[WIDE_VEC]], <16 x i32> poison, <8 x i32> <i32 1, i32 3, i32 5, i32 7, i32 9, i32 11, i32 13, i32 15> |
| ; AVX2-NEXT: [[STRIDED_VEC8:%.*]] = shufflevector <16 x i32> [[WIDE_VEC1]], <16 x i32> poison, <8 x i32> <i32 1, i32 3, i32 5, i32 7, i32 9, i32 11, i32 13, i32 15> |
| ; AVX2-NEXT: [[STRIDED_VEC9:%.*]] = shufflevector <16 x i32> [[WIDE_VEC2]], <16 x i32> poison, <8 x i32> <i32 1, i32 3, i32 5, i32 7, i32 9, i32 11, i32 13, i32 15> |
| ; AVX2-NEXT: [[STRIDED_VEC10:%.*]] = shufflevector <16 x i32> [[WIDE_VEC3]], <16 x i32> poison, <8 x i32> <i32 1, i32 3, i32 5, i32 7, i32 9, i32 11, i32 13, i32 15> |
| ; AVX2-NEXT: [[TMP15:%.*]] = add nsw <8 x i32> [[STRIDED_VEC7]], [[STRIDED_VEC]] |
| ; AVX2-NEXT: [[TMP16:%.*]] = add nsw <8 x i32> [[STRIDED_VEC8]], [[STRIDED_VEC4]] |
| ; AVX2-NEXT: [[TMP17:%.*]] = add nsw <8 x i32> [[STRIDED_VEC9]], [[STRIDED_VEC5]] |
| ; AVX2-NEXT: [[TMP18:%.*]] = add nsw <8 x i32> [[STRIDED_VEC10]], [[STRIDED_VEC6]] |
| ; AVX2-NEXT: [[TMP19:%.*]] = getelementptr inbounds i32, i32* [[A:%.*]], i64 [[INDEX]] |
| ; AVX2-NEXT: [[TMP20:%.*]] = bitcast i32* [[TMP19]] to <8 x i32>* |
| ; AVX2-NEXT: store <8 x i32> [[TMP15]], <8 x i32>* [[TMP20]], align 4 |
| ; AVX2-NEXT: [[TMP21:%.*]] = getelementptr inbounds i32, i32* [[TMP19]], i64 8 |
| ; AVX2-NEXT: [[TMP22:%.*]] = bitcast i32* [[TMP21]] to <8 x i32>* |
| ; AVX2-NEXT: store <8 x i32> [[TMP16]], <8 x i32>* [[TMP22]], align 4 |
| ; AVX2-NEXT: [[TMP23:%.*]] = getelementptr inbounds i32, i32* [[TMP19]], i64 16 |
| ; AVX2-NEXT: [[TMP24:%.*]] = bitcast i32* [[TMP23]] to <8 x i32>* |
| ; AVX2-NEXT: store <8 x i32> [[TMP17]], <8 x i32>* [[TMP24]], align 4 |
| ; AVX2-NEXT: [[TMP25:%.*]] = getelementptr inbounds i32, i32* [[TMP19]], i64 24 |
| ; AVX2-NEXT: [[TMP26:%.*]] = bitcast i32* [[TMP25]] to <8 x i32>* |
| ; AVX2-NEXT: store <8 x i32> [[TMP18]], <8 x i32>* [[TMP26]], align 4 |
| ; AVX2-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 32 |
| ; AVX2-NEXT: [[TMP27:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024 |
| ; AVX2-NEXT: br i1 [[TMP27]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]] |
| ; AVX2: middle.block: |
| ; AVX2-NEXT: br i1 true, label [[FOR_COND_CLEANUP:%.*]], label [[SCALAR_PH]] |
| ; AVX2: scalar.ph: |
| ; AVX2-NEXT: br label [[FOR_BODY:%.*]] |
| ; AVX2: for.cond.cleanup: |
| ; AVX2-NEXT: ret void |
| ; AVX2: for.body: |
| ; AVX2-NEXT: br i1 undef, label [[FOR_COND_CLEANUP]], label [[FOR_BODY]], !llvm.loop [[LOOP2:![0-9]+]] |
| ; |
| ; ATOM-LABEL: @foo( |
| ; ATOM-NEXT: entry: |
| ; ATOM-NEXT: br label [[FOR_BODY:%.*]] |
| ; ATOM: for.cond.cleanup: |
| ; ATOM-NEXT: ret void |
| ; ATOM: for.body: |
| ; ATOM-NEXT: [[INDVARS_IV:%.*]] = phi i64 [ 0, [[ENTRY:%.*]] ], [ [[INDVARS_IV_NEXT:%.*]], [[FOR_BODY]] ] |
| ; ATOM-NEXT: [[TMP0:%.*]] = shl nuw nsw i64 [[INDVARS_IV]], 1 |
| ; ATOM-NEXT: [[ARRAYIDX:%.*]] = getelementptr inbounds i32, i32* [[B:%.*]], i64 [[TMP0]] |
| ; ATOM-NEXT: [[TMP1:%.*]] = load i32, i32* [[ARRAYIDX]], align 4 |
| ; ATOM-NEXT: [[TMP2:%.*]] = or i64 [[TMP0]], 1 |
| ; ATOM-NEXT: [[ARRAYIDX3:%.*]] = getelementptr inbounds i32, i32* [[B]], i64 [[TMP2]] |
| ; ATOM-NEXT: [[TMP3:%.*]] = load i32, i32* [[ARRAYIDX3]], align 4 |
| ; ATOM-NEXT: [[ADD4:%.*]] = add nsw i32 [[TMP3]], [[TMP1]] |
| ; ATOM-NEXT: [[ARRAYIDX6:%.*]] = getelementptr inbounds i32, i32* [[A:%.*]], i64 [[INDVARS_IV]] |
| ; ATOM-NEXT: store i32 [[ADD4]], i32* [[ARRAYIDX6]], align 4 |
| ; ATOM-NEXT: [[INDVARS_IV_NEXT]] = add nuw nsw i64 [[INDVARS_IV]], 1 |
| ; ATOM-NEXT: [[EXITCOND:%.*]] = icmp eq i64 [[INDVARS_IV_NEXT]], 1024 |
| ; ATOM-NEXT: br i1 [[EXITCOND]], label [[FOR_COND_CLEANUP:%.*]], label [[FOR_BODY]] |
| ; |
| entry: |
| br label %for.body |
| |
| for.cond.cleanup: ; preds = %for.body |
| ret void |
| |
| for.body: ; preds = %for.body, %entry |
| %indvars.iv = phi i64 [ 0, %entry ], [ %indvars.iv.next, %for.body ] |
| %0 = shl nsw i64 %indvars.iv, 1 |
| %arrayidx = getelementptr inbounds i32, i32* %b, i64 %0 |
| %1 = load i32, i32* %arrayidx, align 4 |
| %2 = or i64 %0, 1 |
| %arrayidx3 = getelementptr inbounds i32, i32* %b, i64 %2 |
| %3 = load i32, i32* %arrayidx3, align 4 |
| %add4 = add nsw i32 %3, %1 |
| %arrayidx6 = getelementptr inbounds i32, i32* %a, i64 %indvars.iv |
| store i32 %add4, i32* %arrayidx6, align 4 |
| %indvars.iv.next = add nuw nsw i64 %indvars.iv, 1 |
| %exitcond = icmp eq i64 %indvars.iv.next, 1024 |
| br i1 %exitcond, label %for.cond.cleanup, label %for.body |
| } |