llvm/test/Transforms/LoopVectorize/X86/interleaving.ll - llvm-project - Git at Google

 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
 ; RUN: opt -S -mtriple=x86_64-pc_linux -passes=loop-vectorize,instcombine < %s | FileCheck %s --check-prefix=SSE
 ; RUN: opt -S -mtriple=x86_64-pc_linux -passes=loop-vectorize,instcombine -mcpu=sandybridge < %s | FileCheck %s --check-prefix=AVX1
 ; RUN: opt -S -mtriple=x86_64-pc_linux -passes=loop-vectorize,instcombine -mcpu=haswell < %s | FileCheck %s --check-prefix=AVX2
 ; RUN: opt -S -mtriple=x86_64-pc_linux -passes=loop-vectorize,instcombine -mcpu=slm < %s | FileCheck %s --check-prefix=SSE
 ; RUN: opt -S -mtriple=x86_64-pc_linux -passes=loop-vectorize,instcombine -mcpu=atom < %s | FileCheck %s --check-prefix=ATOM

 define void @foo(ptr noalias nocapture %a, ptr 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:    [[DOTIDX:%.*]] = shl nsw i64 [[INDEX]], 3
 ; SSE-NEXT:    [[TMP2:%.*]] = getelementptr inbounds i8, ptr [[B:%.*]], i64 [[DOTIDX]]
 ; SSE-NEXT:    [[DOTIDX5:%.*]] = shl i64 [[INDEX]], 3
 ; SSE-NEXT:    [[TMP1:%.*]] = getelementptr i8, ptr [[B]], i64 [[DOTIDX5]]
 ; SSE-NEXT:    [[TMP3:%.*]] = getelementptr i8, ptr [[TMP1]], i64 32
 ; SSE-NEXT:    [[WIDE_VEC:%.*]] = load <8 x i32>, ptr [[TMP2]], 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_VEC1:%.*]] = shufflevector <8 x i32> [[WIDE_VEC]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
 ; SSE-NEXT:    [[WIDE_VEC2:%.*]] = load <8 x i32>, ptr [[TMP3]], align 4
 ; SSE-NEXT:    [[STRIDED_VEC3:%.*]] = shufflevector <8 x i32> [[WIDE_VEC2]], <8 x i32> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
 ; SSE-NEXT:    [[STRIDED_VEC4:%.*]] = shufflevector <8 x i32> [[WIDE_VEC2]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
 ; SSE-NEXT:    [[TMP4:%.*]] = add nsw <4 x i32> [[STRIDED_VEC1]], [[STRIDED_VEC]]
 ; SSE-NEXT:    [[TMP5:%.*]] = add nsw <4 x i32> [[STRIDED_VEC4]], [[STRIDED_VEC3]]
 ; SSE-NEXT:    [[TMP6:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[INDEX]]
 ; SSE-NEXT:    [[TMP7:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP6]], i64 16
 ; SSE-NEXT:    store <4 x i32> [[TMP4]], ptr [[TMP6]], align 4
 ; SSE-NEXT:    store <4 x i32> [[TMP5]], ptr [[TMP7]], align 4
 ; SSE-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
 ; SSE-NEXT:    [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
 ; SSE-NEXT:    br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
 ; SSE:       middle.block:
 ; SSE-NEXT:    br label [[FOR_COND_CLEANUP:%.*]]
 ; SSE:       scalar.ph:
 ; SSE-NEXT:    br label [[FOR_BODY:%.*]]
 ; SSE:       for.cond.cleanup:
 ; SSE-NEXT:    ret void
 ; SSE:       for.body:
 ; SSE-NEXT:    br i1 poison, label [[FOR_COND_CLEANUP]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![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:    [[DOTIDX:%.*]] = shl nsw i64 [[INDEX]], 3
 ; AVX1-NEXT:    [[TMP6:%.*]] = getelementptr inbounds i8, ptr [[B:%.*]], i64 [[DOTIDX]]
 ; AVX1-NEXT:    [[DOTIDX11:%.*]] = shl i64 [[INDEX]], 3
 ; AVX1-NEXT:    [[TMP1:%.*]] = getelementptr i8, ptr [[B]], i64 [[DOTIDX11]]
 ; AVX1-NEXT:    [[TMP7:%.*]] = getelementptr i8, ptr [[TMP1]], i64 32
 ; AVX1-NEXT:    [[DOTIDX12:%.*]] = shl i64 [[INDEX]], 3
 ; AVX1-NEXT:    [[TMP3:%.*]] = getelementptr i8, ptr [[B]], i64 [[DOTIDX12]]
 ; AVX1-NEXT:    [[TMP8:%.*]] = getelementptr i8, ptr [[TMP3]], i64 64
 ; AVX1-NEXT:    [[DOTIDX13:%.*]] = shl i64 [[INDEX]], 3
 ; AVX1-NEXT:    [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[DOTIDX13]]
 ; AVX1-NEXT:    [[TMP9:%.*]] = getelementptr i8, ptr [[TMP5]], i64 96
 ; AVX1-NEXT:    [[WIDE_VEC:%.*]] = load <8 x i32>, ptr [[TMP6]], 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_VEC1:%.*]] = shufflevector <8 x i32> [[WIDE_VEC]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
 ; AVX1-NEXT:    [[WIDE_VEC2:%.*]] = load <8 x i32>, ptr [[TMP7]], align 4
 ; AVX1-NEXT:    [[STRIDED_VEC3:%.*]] = shufflevector <8 x i32> [[WIDE_VEC2]], <8 x i32> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
 ; AVX1-NEXT:    [[STRIDED_VEC4:%.*]] = shufflevector <8 x i32> [[WIDE_VEC2]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
 ; AVX1-NEXT:    [[WIDE_VEC5:%.*]] = load <8 x i32>, ptr [[TMP8]], align 4
 ; AVX1-NEXT:    [[STRIDED_VEC6:%.*]] = shufflevector <8 x i32> [[WIDE_VEC5]], <8 x i32> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
 ; AVX1-NEXT:    [[STRIDED_VEC7:%.*]] = shufflevector <8 x i32> [[WIDE_VEC5]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
 ; AVX1-NEXT:    [[WIDE_VEC8:%.*]] = load <8 x i32>, ptr [[TMP9]], align 4
 ; AVX1-NEXT:    [[STRIDED_VEC9:%.*]] = shufflevector <8 x i32> [[WIDE_VEC8]], <8 x i32> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
 ; AVX1-NEXT:    [[STRIDED_VEC10:%.*]] = shufflevector <8 x i32> [[WIDE_VEC8]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
 ; AVX1-NEXT:    [[TMP10:%.*]] = add nsw <4 x i32> [[STRIDED_VEC1]], [[STRIDED_VEC]]
 ; AVX1-NEXT:    [[TMP11:%.*]] = add nsw <4 x i32> [[STRIDED_VEC4]], [[STRIDED_VEC3]]
 ; AVX1-NEXT:    [[TMP12:%.*]] = add nsw <4 x i32> [[STRIDED_VEC7]], [[STRIDED_VEC6]]
 ; AVX1-NEXT:    [[TMP13:%.*]] = add nsw <4 x i32> [[STRIDED_VEC10]], [[STRIDED_VEC9]]
 ; AVX1-NEXT:    [[TMP14:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[INDEX]]
 ; AVX1-NEXT:    [[TMP15:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP14]], i64 16
 ; AVX1-NEXT:    [[TMP16:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP14]], i64 32
 ; AVX1-NEXT:    [[TMP17:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP14]], i64 48
 ; AVX1-NEXT:    store <4 x i32> [[TMP10]], ptr [[TMP14]], align 4
 ; AVX1-NEXT:    store <4 x i32> [[TMP11]], ptr [[TMP15]], align 4
 ; AVX1-NEXT:    store <4 x i32> [[TMP12]], ptr [[TMP16]], align 4
 ; AVX1-NEXT:    store <4 x i32> [[TMP13]], ptr [[TMP17]], align 4
 ; AVX1-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
 ; AVX1-NEXT:    [[TMP18:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
 ; AVX1-NEXT:    br i1 [[TMP18]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
 ; AVX1:       middle.block:
 ; AVX1-NEXT:    br label [[FOR_COND_CLEANUP:%.*]]
 ; AVX1:       scalar.ph:
 ; AVX1-NEXT:    br label [[FOR_BODY:%.*]]
 ; AVX1:       for.cond.cleanup:
 ; AVX1-NEXT:    ret void
 ; AVX1:       for.body:
 ; AVX1-NEXT:    br i1 poison, label [[FOR_COND_CLEANUP]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![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:    [[DOTIDX:%.*]] = shl nsw i64 [[INDEX]], 3
 ; AVX2-NEXT:    [[TMP6:%.*]] = getelementptr inbounds i8, ptr [[B:%.*]], i64 [[DOTIDX]]
 ; AVX2-NEXT:    [[DOTIDX11:%.*]] = shl i64 [[INDEX]], 3
 ; AVX2-NEXT:    [[TMP1:%.*]] = getelementptr i8, ptr [[B]], i64 [[DOTIDX11]]
 ; AVX2-NEXT:    [[TMP7:%.*]] = getelementptr i8, ptr [[TMP1]], i64 64
 ; AVX2-NEXT:    [[DOTIDX12:%.*]] = shl i64 [[INDEX]], 3
 ; AVX2-NEXT:    [[TMP3:%.*]] = getelementptr i8, ptr [[B]], i64 [[DOTIDX12]]
 ; AVX2-NEXT:    [[TMP8:%.*]] = getelementptr i8, ptr [[TMP3]], i64 128
 ; AVX2-NEXT:    [[DOTIDX13:%.*]] = shl i64 [[INDEX]], 3
 ; AVX2-NEXT:    [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[DOTIDX13]]
 ; AVX2-NEXT:    [[TMP9:%.*]] = getelementptr i8, ptr [[TMP5]], i64 192
 ; AVX2-NEXT:    [[WIDE_VEC:%.*]] = load <16 x i32>, ptr [[TMP6]], 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_VEC1:%.*]] = 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:    [[WIDE_VEC2:%.*]] = load <16 x i32>, ptr [[TMP7]], align 4
 ; AVX2-NEXT:    [[STRIDED_VEC3:%.*]] = 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_VEC4:%.*]] = 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:    [[WIDE_VEC5:%.*]] = load <16 x i32>, ptr [[TMP8]], align 4
 ; AVX2-NEXT:    [[STRIDED_VEC6:%.*]] = shufflevector <16 x i32> [[WIDE_VEC5]], <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_VEC5]], <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:    [[WIDE_VEC8:%.*]] = load <16 x i32>, ptr [[TMP9]], align 4
 ; AVX2-NEXT:    [[STRIDED_VEC9:%.*]] = shufflevector <16 x i32> [[WIDE_VEC8]], <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_VEC10:%.*]] = shufflevector <16 x i32> [[WIDE_VEC8]], <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:    [[TMP10:%.*]] = add nsw <8 x i32> [[STRIDED_VEC1]], [[STRIDED_VEC]]
 ; AVX2-NEXT:    [[TMP11:%.*]] = add nsw <8 x i32> [[STRIDED_VEC4]], [[STRIDED_VEC3]]
 ; AVX2-NEXT:    [[TMP12:%.*]] = add nsw <8 x i32> [[STRIDED_VEC7]], [[STRIDED_VEC6]]
 ; AVX2-NEXT:    [[TMP13:%.*]] = add nsw <8 x i32> [[STRIDED_VEC10]], [[STRIDED_VEC9]]
 ; AVX2-NEXT:    [[TMP14:%.*]] = getelementptr inbounds i32, ptr [[A:%.*]], i64 [[INDEX]]
 ; AVX2-NEXT:    [[TMP15:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP14]], i64 32
 ; AVX2-NEXT:    [[TMP16:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP14]], i64 64
 ; AVX2-NEXT:    [[TMP17:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP14]], i64 96
 ; AVX2-NEXT:    store <8 x i32> [[TMP10]], ptr [[TMP14]], align 4
 ; AVX2-NEXT:    store <8 x i32> [[TMP11]], ptr [[TMP15]], align 4
 ; AVX2-NEXT:    store <8 x i32> [[TMP12]], ptr [[TMP16]], align 4
 ; AVX2-NEXT:    store <8 x i32> [[TMP13]], ptr [[TMP17]], align 4
 ; AVX2-NEXT:    [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 32
 ; AVX2-NEXT:    [[TMP18:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
 ; AVX2-NEXT:    br i1 [[TMP18]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
 ; AVX2:       middle.block:
 ; AVX2-NEXT:    br label [[FOR_COND_CLEANUP:%.*]]
 ; AVX2:       scalar.ph:
 ; AVX2-NEXT:    br label [[FOR_BODY:%.*]]
 ; AVX2:       for.cond.cleanup:
 ; AVX2-NEXT:    ret void
 ; AVX2:       for.body:
 ; AVX2-NEXT:    br i1 poison, label [[FOR_COND_CLEANUP]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![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 nuw i32, ptr [[B:%.*]], i64 [[TMP0]]
 ; ATOM-NEXT:    [[TMP1:%.*]] = load i32, ptr [[ARRAYIDX]], align 4
 ; ATOM-NEXT:    [[TMP2:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP0]]
 ; ATOM-NEXT:    [[ARRAYIDX3:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP2]], i64 4
 ; ATOM-NEXT:    [[TMP3:%.*]] = load i32, ptr [[ARRAYIDX3]], align 4
 ; ATOM-NEXT:    [[ADD4:%.*]] = add nsw i32 [[TMP3]], [[TMP1]]
 ; ATOM-NEXT:    [[ARRAYIDX6:%.*]] = getelementptr inbounds nuw i32, ptr [[A:%.*]], i64 [[INDVARS_IV]]
 ; ATOM-NEXT:    store i32 [[ADD4]], ptr [[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, ptr %b, i64 %0
   %1 = load i32, ptr %arrayidx, align 4
   %2 = or disjoint i64 %0, 1
   %arrayidx3 = getelementptr inbounds i32, ptr %b, i64 %2
   %3 = load i32, ptr %arrayidx3, align 4
   %add4 = add nsw i32 %3, %1
   %arrayidx6 = getelementptr inbounds i32, ptr %a, i64 %indvars.iv
   store i32 %add4, ptr %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
 }
	; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
	; RUN: opt -S -mtriple=x86_64-pc_linux -passes=loop-vectorize,instcombine < %s \| FileCheck %s --check-prefix=SSE
	; RUN: opt -S -mtriple=x86_64-pc_linux -passes=loop-vectorize,instcombine -mcpu=sandybridge < %s \| FileCheck %s --check-prefix=AVX1
	; RUN: opt -S -mtriple=x86_64-pc_linux -passes=loop-vectorize,instcombine -mcpu=haswell < %s \| FileCheck %s --check-prefix=AVX2
	; RUN: opt -S -mtriple=x86_64-pc_linux -passes=loop-vectorize,instcombine -mcpu=slm < %s \| FileCheck %s --check-prefix=SSE
	; RUN: opt -S -mtriple=x86_64-pc_linux -passes=loop-vectorize,instcombine -mcpu=atom < %s \| FileCheck %s --check-prefix=ATOM

	define void @foo(ptr noalias nocapture %a, ptr 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: [[DOTIDX:%.*]] = shl nsw i64 [[INDEX]], 3
	; SSE-NEXT: [[TMP2:%.]] = getelementptr inbounds i8, ptr [[B:%.]], i64 [[DOTIDX]]
	; SSE-NEXT: [[DOTIDX5:%.*]] = shl i64 [[INDEX]], 3
	; SSE-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[B]], i64 [[DOTIDX5]]
	; SSE-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[TMP1]], i64 32
	; SSE-NEXT: [[WIDE_VEC:%.*]] = load <8 x i32>, ptr [[TMP2]], 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_VEC1:%.*]] = shufflevector <8 x i32> [[WIDE_VEC]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
	; SSE-NEXT: [[WIDE_VEC2:%.*]] = load <8 x i32>, ptr [[TMP3]], align 4
	; SSE-NEXT: [[STRIDED_VEC3:%.*]] = shufflevector <8 x i32> [[WIDE_VEC2]], <8 x i32> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
	; SSE-NEXT: [[STRIDED_VEC4:%.*]] = shufflevector <8 x i32> [[WIDE_VEC2]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
	; SSE-NEXT: [[TMP4:%.*]] = add nsw <4 x i32> [[STRIDED_VEC1]], [[STRIDED_VEC]]
	; SSE-NEXT: [[TMP5:%.*]] = add nsw <4 x i32> [[STRIDED_VEC4]], [[STRIDED_VEC3]]
	; SSE-NEXT: [[TMP6:%.]] = getelementptr inbounds i32, ptr [[A:%.]], i64 [[INDEX]]
	; SSE-NEXT: [[TMP7:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP6]], i64 16
	; SSE-NEXT: store <4 x i32> [[TMP4]], ptr [[TMP6]], align 4
	; SSE-NEXT: store <4 x i32> [[TMP5]], ptr [[TMP7]], align 4
	; SSE-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 8
	; SSE-NEXT: [[TMP8:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
	; SSE-NEXT: br i1 [[TMP8]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
	; SSE: middle.block:
	; SSE-NEXT: br label [[FOR_COND_CLEANUP:%.*]]
	; SSE: scalar.ph:
	; SSE-NEXT: br label [[FOR_BODY:%.*]]
	; SSE: for.cond.cleanup:
	; SSE-NEXT: ret void
	; SSE: for.body:
	; SSE-NEXT: br i1 poison, label [[FOR_COND_CLEANUP]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![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: [[DOTIDX:%.*]] = shl nsw i64 [[INDEX]], 3
	; AVX1-NEXT: [[TMP6:%.]] = getelementptr inbounds i8, ptr [[B:%.]], i64 [[DOTIDX]]
	; AVX1-NEXT: [[DOTIDX11:%.*]] = shl i64 [[INDEX]], 3
	; AVX1-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[B]], i64 [[DOTIDX11]]
	; AVX1-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[TMP1]], i64 32
	; AVX1-NEXT: [[DOTIDX12:%.*]] = shl i64 [[INDEX]], 3
	; AVX1-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[B]], i64 [[DOTIDX12]]
	; AVX1-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[TMP3]], i64 64
	; AVX1-NEXT: [[DOTIDX13:%.*]] = shl i64 [[INDEX]], 3
	; AVX1-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[DOTIDX13]]
	; AVX1-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[TMP5]], i64 96
	; AVX1-NEXT: [[WIDE_VEC:%.*]] = load <8 x i32>, ptr [[TMP6]], 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_VEC1:%.*]] = shufflevector <8 x i32> [[WIDE_VEC]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
	; AVX1-NEXT: [[WIDE_VEC2:%.*]] = load <8 x i32>, ptr [[TMP7]], align 4
	; AVX1-NEXT: [[STRIDED_VEC3:%.*]] = shufflevector <8 x i32> [[WIDE_VEC2]], <8 x i32> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
	; AVX1-NEXT: [[STRIDED_VEC4:%.*]] = shufflevector <8 x i32> [[WIDE_VEC2]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
	; AVX1-NEXT: [[WIDE_VEC5:%.*]] = load <8 x i32>, ptr [[TMP8]], align 4
	; AVX1-NEXT: [[STRIDED_VEC6:%.*]] = shufflevector <8 x i32> [[WIDE_VEC5]], <8 x i32> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
	; AVX1-NEXT: [[STRIDED_VEC7:%.*]] = shufflevector <8 x i32> [[WIDE_VEC5]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
	; AVX1-NEXT: [[WIDE_VEC8:%.*]] = load <8 x i32>, ptr [[TMP9]], align 4
	; AVX1-NEXT: [[STRIDED_VEC9:%.*]] = shufflevector <8 x i32> [[WIDE_VEC8]], <8 x i32> poison, <4 x i32> <i32 0, i32 2, i32 4, i32 6>
	; AVX1-NEXT: [[STRIDED_VEC10:%.*]] = shufflevector <8 x i32> [[WIDE_VEC8]], <8 x i32> poison, <4 x i32> <i32 1, i32 3, i32 5, i32 7>
	; AVX1-NEXT: [[TMP10:%.*]] = add nsw <4 x i32> [[STRIDED_VEC1]], [[STRIDED_VEC]]
	; AVX1-NEXT: [[TMP11:%.*]] = add nsw <4 x i32> [[STRIDED_VEC4]], [[STRIDED_VEC3]]
	; AVX1-NEXT: [[TMP12:%.*]] = add nsw <4 x i32> [[STRIDED_VEC7]], [[STRIDED_VEC6]]
	; AVX1-NEXT: [[TMP13:%.*]] = add nsw <4 x i32> [[STRIDED_VEC10]], [[STRIDED_VEC9]]
	; AVX1-NEXT: [[TMP14:%.]] = getelementptr inbounds i32, ptr [[A:%.]], i64 [[INDEX]]
	; AVX1-NEXT: [[TMP15:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP14]], i64 16
	; AVX1-NEXT: [[TMP16:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP14]], i64 32
	; AVX1-NEXT: [[TMP17:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP14]], i64 48
	; AVX1-NEXT: store <4 x i32> [[TMP10]], ptr [[TMP14]], align 4
	; AVX1-NEXT: store <4 x i32> [[TMP11]], ptr [[TMP15]], align 4
	; AVX1-NEXT: store <4 x i32> [[TMP12]], ptr [[TMP16]], align 4
	; AVX1-NEXT: store <4 x i32> [[TMP13]], ptr [[TMP17]], align 4
	; AVX1-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 16
	; AVX1-NEXT: [[TMP18:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
	; AVX1-NEXT: br i1 [[TMP18]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
	; AVX1: middle.block:
	; AVX1-NEXT: br label [[FOR_COND_CLEANUP:%.*]]
	; AVX1: scalar.ph:
	; AVX1-NEXT: br label [[FOR_BODY:%.*]]
	; AVX1: for.cond.cleanup:
	; AVX1-NEXT: ret void
	; AVX1: for.body:
	; AVX1-NEXT: br i1 poison, label [[FOR_COND_CLEANUP]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![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: [[DOTIDX:%.*]] = shl nsw i64 [[INDEX]], 3
	; AVX2-NEXT: [[TMP6:%.]] = getelementptr inbounds i8, ptr [[B:%.]], i64 [[DOTIDX]]
	; AVX2-NEXT: [[DOTIDX11:%.*]] = shl i64 [[INDEX]], 3
	; AVX2-NEXT: [[TMP1:%.*]] = getelementptr i8, ptr [[B]], i64 [[DOTIDX11]]
	; AVX2-NEXT: [[TMP7:%.*]] = getelementptr i8, ptr [[TMP1]], i64 64
	; AVX2-NEXT: [[DOTIDX12:%.*]] = shl i64 [[INDEX]], 3
	; AVX2-NEXT: [[TMP3:%.*]] = getelementptr i8, ptr [[B]], i64 [[DOTIDX12]]
	; AVX2-NEXT: [[TMP8:%.*]] = getelementptr i8, ptr [[TMP3]], i64 128
	; AVX2-NEXT: [[DOTIDX13:%.*]] = shl i64 [[INDEX]], 3
	; AVX2-NEXT: [[TMP5:%.*]] = getelementptr i8, ptr [[B]], i64 [[DOTIDX13]]
	; AVX2-NEXT: [[TMP9:%.*]] = getelementptr i8, ptr [[TMP5]], i64 192
	; AVX2-NEXT: [[WIDE_VEC:%.*]] = load <16 x i32>, ptr [[TMP6]], 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_VEC1:%.*]] = 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: [[WIDE_VEC2:%.*]] = load <16 x i32>, ptr [[TMP7]], align 4
	; AVX2-NEXT: [[STRIDED_VEC3:%.*]] = 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_VEC4:%.*]] = 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: [[WIDE_VEC5:%.*]] = load <16 x i32>, ptr [[TMP8]], align 4
	; AVX2-NEXT: [[STRIDED_VEC6:%.*]] = shufflevector <16 x i32> [[WIDE_VEC5]], <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_VEC5]], <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: [[WIDE_VEC8:%.*]] = load <16 x i32>, ptr [[TMP9]], align 4
	; AVX2-NEXT: [[STRIDED_VEC9:%.*]] = shufflevector <16 x i32> [[WIDE_VEC8]], <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_VEC10:%.*]] = shufflevector <16 x i32> [[WIDE_VEC8]], <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: [[TMP10:%.*]] = add nsw <8 x i32> [[STRIDED_VEC1]], [[STRIDED_VEC]]
	; AVX2-NEXT: [[TMP11:%.*]] = add nsw <8 x i32> [[STRIDED_VEC4]], [[STRIDED_VEC3]]
	; AVX2-NEXT: [[TMP12:%.*]] = add nsw <8 x i32> [[STRIDED_VEC7]], [[STRIDED_VEC6]]
	; AVX2-NEXT: [[TMP13:%.*]] = add nsw <8 x i32> [[STRIDED_VEC10]], [[STRIDED_VEC9]]
	; AVX2-NEXT: [[TMP14:%.]] = getelementptr inbounds i32, ptr [[A:%.]], i64 [[INDEX]]
	; AVX2-NEXT: [[TMP15:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP14]], i64 32
	; AVX2-NEXT: [[TMP16:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP14]], i64 64
	; AVX2-NEXT: [[TMP17:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP14]], i64 96
	; AVX2-NEXT: store <8 x i32> [[TMP10]], ptr [[TMP14]], align 4
	; AVX2-NEXT: store <8 x i32> [[TMP11]], ptr [[TMP15]], align 4
	; AVX2-NEXT: store <8 x i32> [[TMP12]], ptr [[TMP16]], align 4
	; AVX2-NEXT: store <8 x i32> [[TMP13]], ptr [[TMP17]], align 4
	; AVX2-NEXT: [[INDEX_NEXT]] = add nuw i64 [[INDEX]], 32
	; AVX2-NEXT: [[TMP18:%.*]] = icmp eq i64 [[INDEX_NEXT]], 1024
	; AVX2-NEXT: br i1 [[TMP18]], label [[MIDDLE_BLOCK:%.*]], label [[VECTOR_BODY]], !llvm.loop [[LOOP0:![0-9]+]]
	; AVX2: middle.block:
	; AVX2-NEXT: br label [[FOR_COND_CLEANUP:%.*]]
	; AVX2: scalar.ph:
	; AVX2-NEXT: br label [[FOR_BODY:%.*]]
	; AVX2: for.cond.cleanup:
	; AVX2-NEXT: ret void
	; AVX2: for.body:
	; AVX2-NEXT: br i1 poison, label [[FOR_COND_CLEANUP]], label [[FOR_BODY]], !llvm.loop [[LOOP3:![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 nuw i32, ptr [[B:%.]], i64 [[TMP0]]
	; ATOM-NEXT: [[TMP1:%.*]] = load i32, ptr [[ARRAYIDX]], align 4
	; ATOM-NEXT: [[TMP2:%.*]] = getelementptr inbounds nuw i32, ptr [[B]], i64 [[TMP0]]
	; ATOM-NEXT: [[ARRAYIDX3:%.*]] = getelementptr inbounds nuw i8, ptr [[TMP2]], i64 4
	; ATOM-NEXT: [[TMP3:%.*]] = load i32, ptr [[ARRAYIDX3]], align 4
	; ATOM-NEXT: [[ADD4:%.*]] = add nsw i32 [[TMP3]], [[TMP1]]
	; ATOM-NEXT: [[ARRAYIDX6:%.]] = getelementptr inbounds nuw i32, ptr [[A:%.]], i64 [[INDVARS_IV]]
	; ATOM-NEXT: store i32 [[ADD4]], ptr [[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, ptr %b, i64 %0
	%1 = load i32, ptr %arrayidx, align 4
	%2 = or disjoint i64 %0, 1
	%arrayidx3 = getelementptr inbounds i32, ptr %b, i64 %2
	%3 = load i32, ptr %arrayidx3, align 4
	%add4 = add nsw i32 %3, %1
	%arrayidx6 = getelementptr inbounds i32, ptr %a, i64 %indvars.iv
	store i32 %add4, ptr %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
	}