llvm-project/llvm/test/CodeGen/X86/vector-shift-by-select-loop.ll

696 lines
30 KiB
LLVM

; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+sse4.1 | FileCheck %s --check-prefix=SSE
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx | FileCheck %s --check-prefix=AVX1
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx2 | FileCheck %s --check-prefix=AVX2
; RUN: llc < %s -mtriple=x86_64-unknown-unknown -mattr=+avx,+xop | FileCheck %s --check-prefix=XOP
; PR37428 - https://bugs.llvm.org/show_bug.cgi?id=37428
; This is a larger-than-usual regression test to verify that several backend
; transforms are working together. We want to hoist the expansion of non-uniform
; vector shifts out of a loop if we do not have real vector shift instructions.
; See test/Transforms/CodeGenPrepare/X86/vec-shift.ll for the 1st step in that
; sequence.
define void @vector_variable_shift_left_loop(i32* nocapture %arr, i8* nocapture readonly %control, i32 %count, i32 %amt0, i32 %amt1) nounwind {
; SSE-LABEL: vector_variable_shift_left_loop:
; SSE: # %bb.0: # %entry
; SSE-NEXT: testl %edx, %edx
; SSE-NEXT: jle .LBB0_9
; SSE-NEXT: # %bb.1: # %for.body.preheader
; SSE-NEXT: movl %ecx, %r9d
; SSE-NEXT: movl %edx, %eax
; SSE-NEXT: cmpl $31, %edx
; SSE-NEXT: ja .LBB0_3
; SSE-NEXT: # %bb.2:
; SSE-NEXT: xorl %edx, %edx
; SSE-NEXT: jmp .LBB0_6
; SSE-NEXT: .LBB0_3: # %vector.ph
; SSE-NEXT: movl %eax, %edx
; SSE-NEXT: andl $-32, %edx
; SSE-NEXT: movd %r9d, %xmm0
; SSE-NEXT: movd %r8d, %xmm2
; SSE-NEXT: xorl %ecx, %ecx
; SSE-NEXT: pmovzxdq {{.*#+}} xmm14 = xmm0[0],zero,xmm0[1],zero
; SSE-NEXT: pmovzxdq {{.*#+}} xmm15 = xmm2[0],zero,xmm2[1],zero
; SSE-NEXT: .p2align 4, 0x90
; SSE-NEXT: .LBB0_4: # %vector.body
; SSE-NEXT: # =>This Inner Loop Header: Depth=1
; SSE-NEXT: movq {{.*#+}} xmm0 = mem[0],zero
; SSE-NEXT: movq {{.*#+}} xmm3 = mem[0],zero
; SSE-NEXT: movq {{.*#+}} xmm4 = mem[0],zero
; SSE-NEXT: movq {{.*#+}} xmm5 = mem[0],zero
; SSE-NEXT: pxor %xmm1, %xmm1
; SSE-NEXT: pcmpeqb %xmm1, %xmm0
; SSE-NEXT: pmovsxbd %xmm0, %xmm7
; SSE-NEXT: pshufd {{.*#+}} xmm0 = xmm0[1,1,1,1]
; SSE-NEXT: pmovsxbd %xmm0, %xmm0
; SSE-NEXT: pcmpeqb %xmm1, %xmm3
; SSE-NEXT: pmovsxbd %xmm3, %xmm13
; SSE-NEXT: pshufd {{.*#+}} xmm3 = xmm3[1,1,1,1]
; SSE-NEXT: pmovsxbd %xmm3, %xmm6
; SSE-NEXT: pcmpeqb %xmm1, %xmm4
; SSE-NEXT: pmovsxbd %xmm4, %xmm11
; SSE-NEXT: pshufd {{.*#+}} xmm3 = xmm4[1,1,1,1]
; SSE-NEXT: pmovsxbd %xmm3, %xmm2
; SSE-NEXT: pcmpeqb %xmm1, %xmm5
; SSE-NEXT: pmovsxbd %xmm5, %xmm9
; SSE-NEXT: pshufd {{.*#+}} xmm3 = xmm5[1,1,1,1]
; SSE-NEXT: pmovsxbd %xmm3, %xmm10
; SSE-NEXT: movdqu 16(%rdi,%rcx,4), %xmm3
; SSE-NEXT: movdqa %xmm3, %xmm4
; SSE-NEXT: pslld %xmm14, %xmm4
; SSE-NEXT: pslld %xmm15, %xmm3
; SSE-NEXT: blendvps %xmm0, %xmm4, %xmm3
; SSE-NEXT: movdqu (%rdi,%rcx,4), %xmm8
; SSE-NEXT: movdqa %xmm8, %xmm5
; SSE-NEXT: pslld %xmm14, %xmm5
; SSE-NEXT: pslld %xmm15, %xmm8
; SSE-NEXT: movdqa %xmm7, %xmm0
; SSE-NEXT: blendvps %xmm0, %xmm5, %xmm8
; SSE-NEXT: movdqu 48(%rdi,%rcx,4), %xmm12
; SSE-NEXT: movdqa %xmm12, %xmm5
; SSE-NEXT: pslld %xmm14, %xmm5
; SSE-NEXT: pslld %xmm15, %xmm12
; SSE-NEXT: movdqa %xmm6, %xmm0
; SSE-NEXT: blendvps %xmm0, %xmm5, %xmm12
; SSE-NEXT: movdqu 32(%rdi,%rcx,4), %xmm6
; SSE-NEXT: movdqa %xmm6, %xmm5
; SSE-NEXT: pslld %xmm14, %xmm5
; SSE-NEXT: pslld %xmm15, %xmm6
; SSE-NEXT: movdqa %xmm13, %xmm0
; SSE-NEXT: blendvps %xmm0, %xmm5, %xmm6
; SSE-NEXT: movdqu 80(%rdi,%rcx,4), %xmm1
; SSE-NEXT: movdqa %xmm1, %xmm5
; SSE-NEXT: pslld %xmm14, %xmm5
; SSE-NEXT: pslld %xmm15, %xmm1
; SSE-NEXT: movdqa %xmm2, %xmm0
; SSE-NEXT: blendvps %xmm0, %xmm5, %xmm1
; SSE-NEXT: movdqu 64(%rdi,%rcx,4), %xmm5
; SSE-NEXT: movdqa %xmm5, %xmm2
; SSE-NEXT: pslld %xmm14, %xmm2
; SSE-NEXT: pslld %xmm15, %xmm5
; SSE-NEXT: movdqa %xmm11, %xmm0
; SSE-NEXT: blendvps %xmm0, %xmm2, %xmm5
; SSE-NEXT: movdqu 112(%rdi,%rcx,4), %xmm2
; SSE-NEXT: movdqa %xmm2, %xmm4
; SSE-NEXT: pslld %xmm14, %xmm4
; SSE-NEXT: pslld %xmm15, %xmm2
; SSE-NEXT: movdqa %xmm10, %xmm0
; SSE-NEXT: blendvps %xmm0, %xmm4, %xmm2
; SSE-NEXT: movdqu 96(%rdi,%rcx,4), %xmm4
; SSE-NEXT: movdqa %xmm4, %xmm7
; SSE-NEXT: pslld %xmm14, %xmm7
; SSE-NEXT: pslld %xmm15, %xmm4
; SSE-NEXT: movdqa %xmm9, %xmm0
; SSE-NEXT: blendvps %xmm0, %xmm7, %xmm4
; SSE-NEXT: movups %xmm8, (%rdi,%rcx,4)
; SSE-NEXT: movups %xmm3, 16(%rdi,%rcx,4)
; SSE-NEXT: movups %xmm6, 32(%rdi,%rcx,4)
; SSE-NEXT: movups %xmm12, 48(%rdi,%rcx,4)
; SSE-NEXT: movups %xmm5, 64(%rdi,%rcx,4)
; SSE-NEXT: movups %xmm1, 80(%rdi,%rcx,4)
; SSE-NEXT: movups %xmm4, 96(%rdi,%rcx,4)
; SSE-NEXT: movups %xmm2, 112(%rdi,%rcx,4)
; SSE-NEXT: addq $32, %rcx
; SSE-NEXT: cmpq %rcx, %rdx
; SSE-NEXT: jne .LBB0_4
; SSE-NEXT: # %bb.5: # %middle.block
; SSE-NEXT: cmpq %rax, %rdx
; SSE-NEXT: jne .LBB0_6
; SSE-NEXT: .LBB0_9: # %for.cond.cleanup
; SSE-NEXT: retq
; SSE-NEXT: .p2align 4, 0x90
; SSE-NEXT: .LBB0_8: # %for.body
; SSE-NEXT: # in Loop: Header=BB0_6 Depth=1
; SSE-NEXT: # kill: def $cl killed $cl killed $ecx
; SSE-NEXT: shll %cl, (%rdi,%rdx,4)
; SSE-NEXT: incq %rdx
; SSE-NEXT: cmpq %rdx, %rax
; SSE-NEXT: je .LBB0_9
; SSE-NEXT: .LBB0_6: # %for.body
; SSE-NEXT: # =>This Inner Loop Header: Depth=1
; SSE-NEXT: cmpb $0, (%rsi,%rdx)
; SSE-NEXT: movl %r9d, %ecx
; SSE-NEXT: je .LBB0_8
; SSE-NEXT: # %bb.7: # %for.body
; SSE-NEXT: # in Loop: Header=BB0_6 Depth=1
; SSE-NEXT: movl %r8d, %ecx
; SSE-NEXT: jmp .LBB0_8
;
; AVX1-LABEL: vector_variable_shift_left_loop:
; AVX1: # %bb.0: # %entry
; AVX1-NEXT: testl %edx, %edx
; AVX1-NEXT: jle .LBB0_9
; AVX1-NEXT: # %bb.1: # %for.body.preheader
; AVX1-NEXT: movl %ecx, %r9d
; AVX1-NEXT: movl %edx, %eax
; AVX1-NEXT: cmpl $31, %edx
; AVX1-NEXT: ja .LBB0_3
; AVX1-NEXT: # %bb.2:
; AVX1-NEXT: xorl %edx, %edx
; AVX1-NEXT: jmp .LBB0_6
; AVX1-NEXT: .LBB0_3: # %vector.ph
; AVX1-NEXT: movl %eax, %edx
; AVX1-NEXT: andl $-32, %edx
; AVX1-NEXT: vmovd %r9d, %xmm0
; AVX1-NEXT: vmovd %r8d, %xmm1
; AVX1-NEXT: xorl %ecx, %ecx
; AVX1-NEXT: vpmovzxdq {{.*#+}} xmm2 = xmm0[0],zero,xmm0[1],zero
; AVX1-NEXT: vmovdqa %xmm2, {{[-0-9]+}}(%r{{[sb]}}p) # 16-byte Spill
; AVX1-NEXT: vpmovzxdq {{.*#+}} xmm2 = xmm1[0],zero,xmm1[1],zero
; AVX1-NEXT: vmovdqa %xmm2, {{[-0-9]+}}(%r{{[sb]}}p) # 16-byte Spill
; AVX1-NEXT: vpmovzxdq {{.*#+}} xmm13 = xmm0[0],zero,xmm0[1],zero
; AVX1-NEXT: vpmovzxdq {{.*#+}} xmm14 = xmm1[0],zero,xmm1[1],zero
; AVX1-NEXT: vmovdqu %ymm0, {{[-0-9]+}}(%r{{[sb]}}p) # 32-byte Spill
; AVX1-NEXT: vpmovzxdq {{.*#+}} xmm15 = xmm0[0],zero,xmm0[1],zero
; AVX1-NEXT: vmovdqu %ymm1, {{[-0-9]+}}(%r{{[sb]}}p) # 32-byte Spill
; AVX1-NEXT: vpmovzxdq {{.*#+}} xmm11 = xmm1[0],zero,xmm1[1],zero
; AVX1-NEXT: .p2align 4, 0x90
; AVX1-NEXT: .LBB0_4: # %vector.body
; AVX1-NEXT: # =>This Inner Loop Header: Depth=1
; AVX1-NEXT: vmovq {{.*#+}} xmm1 = mem[0],zero
; AVX1-NEXT: vmovq {{.*#+}} xmm2 = mem[0],zero
; AVX1-NEXT: vmovq {{.*#+}} xmm3 = mem[0],zero
; AVX1-NEXT: vmovq {{.*#+}} xmm4 = mem[0],zero
; AVX1-NEXT: vpxor %xmm12, %xmm12, %xmm12
; AVX1-NEXT: vpcmpeqb %xmm1, %xmm12, %xmm1
; AVX1-NEXT: vpmovsxbd %xmm1, %xmm5
; AVX1-NEXT: vpshufd {{.*#+}} xmm1 = xmm1[1,1,1,1]
; AVX1-NEXT: vpmovsxbd %xmm1, %xmm1
; AVX1-NEXT: vpcmpeqb %xmm2, %xmm12, %xmm2
; AVX1-NEXT: vpmovsxbd %xmm2, %xmm6
; AVX1-NEXT: vpshufd {{.*#+}} xmm2 = xmm2[1,1,1,1]
; AVX1-NEXT: vpmovsxbd %xmm2, %xmm2
; AVX1-NEXT: vpcmpeqb %xmm3, %xmm12, %xmm3
; AVX1-NEXT: vpmovzxdq {{[-0-9]+}}(%r{{[sb]}}p), %xmm7 # 16-byte Folded Reload
; AVX1-NEXT: # xmm7 = mem[0],zero,mem[1],zero
; AVX1-NEXT: vmovdqu (%rdi,%rcx,4), %xmm8
; AVX1-NEXT: vpslld %xmm7, %xmm8, %xmm9
; AVX1-NEXT: vpmovzxdq {{[-0-9]+}}(%r{{[sb]}}p), %xmm10 # 16-byte Folded Reload
; AVX1-NEXT: # xmm10 = mem[0],zero,mem[1],zero
; AVX1-NEXT: vpslld %xmm10, %xmm8, %xmm0
; AVX1-NEXT: vblendvps %xmm5, %xmm9, %xmm0, %xmm8
; AVX1-NEXT: vpmovsxbd %xmm3, %xmm5
; AVX1-NEXT: vpshufd {{.*#+}} xmm3 = xmm3[1,1,1,1]
; AVX1-NEXT: vpmovsxbd %xmm3, %xmm3
; AVX1-NEXT: vpcmpeqb %xmm4, %xmm12, %xmm4
; AVX1-NEXT: vmovdqu 16(%rdi,%rcx,4), %xmm0
; AVX1-NEXT: vpslld %xmm7, %xmm0, %xmm7
; AVX1-NEXT: vpslld %xmm10, %xmm0, %xmm0
; AVX1-NEXT: vpmovsxbd %xmm4, %xmm9
; AVX1-NEXT: vpshufd {{.*#+}} xmm4 = xmm4[1,1,1,1]
; AVX1-NEXT: vpmovsxbd %xmm4, %xmm12
; AVX1-NEXT: vblendvps %xmm1, %xmm7, %xmm0, %xmm10
; AVX1-NEXT: vmovdqu 32(%rdi,%rcx,4), %xmm1
; AVX1-NEXT: vmovdqa {{[-0-9]+}}(%r{{[sb]}}p), %xmm0 # 16-byte Reload
; AVX1-NEXT: vpslld %xmm0, %xmm1, %xmm7
; AVX1-NEXT: vmovdqa {{[-0-9]+}}(%r{{[sb]}}p), %xmm4 # 16-byte Reload
; AVX1-NEXT: vpslld %xmm4, %xmm1, %xmm1
; AVX1-NEXT: vblendvps %xmm6, %xmm7, %xmm1, %xmm1
; AVX1-NEXT: vmovdqu 48(%rdi,%rcx,4), %xmm6
; AVX1-NEXT: vpslld %xmm0, %xmm6, %xmm7
; AVX1-NEXT: vpslld %xmm4, %xmm6, %xmm6
; AVX1-NEXT: vblendvps %xmm2, %xmm7, %xmm6, %xmm2
; AVX1-NEXT: vmovdqu 64(%rdi,%rcx,4), %xmm6
; AVX1-NEXT: vpslld %xmm13, %xmm6, %xmm7
; AVX1-NEXT: vpslld %xmm14, %xmm6, %xmm6
; AVX1-NEXT: vblendvps %xmm5, %xmm7, %xmm6, %xmm5
; AVX1-NEXT: vmovdqu 80(%rdi,%rcx,4), %xmm6
; AVX1-NEXT: vpslld %xmm13, %xmm6, %xmm7
; AVX1-NEXT: vpslld %xmm14, %xmm6, %xmm6
; AVX1-NEXT: vblendvps %xmm3, %xmm7, %xmm6, %xmm3
; AVX1-NEXT: vmovdqu 96(%rdi,%rcx,4), %xmm6
; AVX1-NEXT: vpslld %xmm15, %xmm6, %xmm7
; AVX1-NEXT: vpslld %xmm11, %xmm6, %xmm6
; AVX1-NEXT: vblendvps %xmm9, %xmm7, %xmm6, %xmm6
; AVX1-NEXT: vmovdqu 112(%rdi,%rcx,4), %xmm7
; AVX1-NEXT: vpslld %xmm15, %xmm7, %xmm0
; AVX1-NEXT: vpslld %xmm11, %xmm7, %xmm7
; AVX1-NEXT: vblendvps %xmm12, %xmm0, %xmm7, %xmm0
; AVX1-NEXT: vmovups %xmm8, (%rdi,%rcx,4)
; AVX1-NEXT: vmovups %xmm10, 16(%rdi,%rcx,4)
; AVX1-NEXT: vmovups %xmm1, 32(%rdi,%rcx,4)
; AVX1-NEXT: vmovups %xmm2, 48(%rdi,%rcx,4)
; AVX1-NEXT: vmovups %xmm5, 64(%rdi,%rcx,4)
; AVX1-NEXT: vmovups %xmm3, 80(%rdi,%rcx,4)
; AVX1-NEXT: vmovups %xmm6, 96(%rdi,%rcx,4)
; AVX1-NEXT: vmovups %xmm0, 112(%rdi,%rcx,4)
; AVX1-NEXT: addq $32, %rcx
; AVX1-NEXT: cmpq %rcx, %rdx
; AVX1-NEXT: jne .LBB0_4
; AVX1-NEXT: # %bb.5: # %middle.block
; AVX1-NEXT: cmpq %rax, %rdx
; AVX1-NEXT: jne .LBB0_6
; AVX1-NEXT: .LBB0_9: # %for.cond.cleanup
; AVX1-NEXT: vzeroupper
; AVX1-NEXT: retq
; AVX1-NEXT: .p2align 4, 0x90
; AVX1-NEXT: .LBB0_8: # %for.body
; AVX1-NEXT: # in Loop: Header=BB0_6 Depth=1
; AVX1-NEXT: # kill: def $cl killed $cl killed $ecx
; AVX1-NEXT: shll %cl, (%rdi,%rdx,4)
; AVX1-NEXT: incq %rdx
; AVX1-NEXT: cmpq %rdx, %rax
; AVX1-NEXT: je .LBB0_9
; AVX1-NEXT: .LBB0_6: # %for.body
; AVX1-NEXT: # =>This Inner Loop Header: Depth=1
; AVX1-NEXT: cmpb $0, (%rsi,%rdx)
; AVX1-NEXT: movl %r9d, %ecx
; AVX1-NEXT: je .LBB0_8
; AVX1-NEXT: # %bb.7: # %for.body
; AVX1-NEXT: # in Loop: Header=BB0_6 Depth=1
; AVX1-NEXT: movl %r8d, %ecx
; AVX1-NEXT: jmp .LBB0_8
;
; AVX2-LABEL: vector_variable_shift_left_loop:
; AVX2: # %bb.0: # %entry
; AVX2-NEXT: testl %edx, %edx
; AVX2-NEXT: jle .LBB0_9
; AVX2-NEXT: # %bb.1: # %for.body.preheader
; AVX2-NEXT: movl %ecx, %r9d
; AVX2-NEXT: movl %edx, %eax
; AVX2-NEXT: cmpl $31, %edx
; AVX2-NEXT: ja .LBB0_3
; AVX2-NEXT: # %bb.2:
; AVX2-NEXT: xorl %edx, %edx
; AVX2-NEXT: jmp .LBB0_6
; AVX2-NEXT: .LBB0_3: # %vector.ph
; AVX2-NEXT: movl %eax, %edx
; AVX2-NEXT: andl $-32, %edx
; AVX2-NEXT: vmovd %r9d, %xmm0
; AVX2-NEXT: vpbroadcastd %xmm0, %ymm0
; AVX2-NEXT: vmovd %r8d, %xmm1
; AVX2-NEXT: vpbroadcastd %xmm1, %ymm1
; AVX2-NEXT: xorl %ecx, %ecx
; AVX2-NEXT: vpxor %xmm2, %xmm2, %xmm2
; AVX2-NEXT: .p2align 4, 0x90
; AVX2-NEXT: .LBB0_4: # %vector.body
; AVX2-NEXT: # =>This Inner Loop Header: Depth=1
; AVX2-NEXT: vpmovzxbd {{.*#+}} ymm3 = mem[0],zero,zero,zero,mem[1],zero,zero,zero,mem[2],zero,zero,zero,mem[3],zero,zero,zero,mem[4],zero,zero,zero,mem[5],zero,zero,zero,mem[6],zero,zero,zero,mem[7],zero,zero,zero
; AVX2-NEXT: vpmovzxbd {{.*#+}} ymm4 = mem[0],zero,zero,zero,mem[1],zero,zero,zero,mem[2],zero,zero,zero,mem[3],zero,zero,zero,mem[4],zero,zero,zero,mem[5],zero,zero,zero,mem[6],zero,zero,zero,mem[7],zero,zero,zero
; AVX2-NEXT: vpmovzxbd {{.*#+}} ymm5 = mem[0],zero,zero,zero,mem[1],zero,zero,zero,mem[2],zero,zero,zero,mem[3],zero,zero,zero,mem[4],zero,zero,zero,mem[5],zero,zero,zero,mem[6],zero,zero,zero,mem[7],zero,zero,zero
; AVX2-NEXT: vpmovzxbd {{.*#+}} ymm6 = mem[0],zero,zero,zero,mem[1],zero,zero,zero,mem[2],zero,zero,zero,mem[3],zero,zero,zero,mem[4],zero,zero,zero,mem[5],zero,zero,zero,mem[6],zero,zero,zero,mem[7],zero,zero,zero
; AVX2-NEXT: vpcmpeqd %ymm2, %ymm3, %ymm3
; AVX2-NEXT: vblendvps %ymm3, %ymm0, %ymm1, %ymm3
; AVX2-NEXT: vpcmpeqd %ymm2, %ymm4, %ymm4
; AVX2-NEXT: vblendvps %ymm4, %ymm0, %ymm1, %ymm4
; AVX2-NEXT: vpcmpeqd %ymm2, %ymm5, %ymm5
; AVX2-NEXT: vblendvps %ymm5, %ymm0, %ymm1, %ymm5
; AVX2-NEXT: vpcmpeqd %ymm2, %ymm6, %ymm6
; AVX2-NEXT: vblendvps %ymm6, %ymm0, %ymm1, %ymm6
; AVX2-NEXT: vmovdqu (%rdi,%rcx,4), %ymm7
; AVX2-NEXT: vpsllvd %ymm3, %ymm7, %ymm3
; AVX2-NEXT: vmovdqu 32(%rdi,%rcx,4), %ymm7
; AVX2-NEXT: vpsllvd %ymm4, %ymm7, %ymm4
; AVX2-NEXT: vmovdqu 64(%rdi,%rcx,4), %ymm7
; AVX2-NEXT: vpsllvd %ymm5, %ymm7, %ymm5
; AVX2-NEXT: vmovdqu 96(%rdi,%rcx,4), %ymm7
; AVX2-NEXT: vpsllvd %ymm6, %ymm7, %ymm6
; AVX2-NEXT: vmovdqu %ymm3, (%rdi,%rcx,4)
; AVX2-NEXT: vmovdqu %ymm4, 32(%rdi,%rcx,4)
; AVX2-NEXT: vmovdqu %ymm5, 64(%rdi,%rcx,4)
; AVX2-NEXT: vmovdqu %ymm6, 96(%rdi,%rcx,4)
; AVX2-NEXT: addq $32, %rcx
; AVX2-NEXT: cmpq %rcx, %rdx
; AVX2-NEXT: jne .LBB0_4
; AVX2-NEXT: # %bb.5: # %middle.block
; AVX2-NEXT: cmpq %rax, %rdx
; AVX2-NEXT: jne .LBB0_6
; AVX2-NEXT: .LBB0_9: # %for.cond.cleanup
; AVX2-NEXT: vzeroupper
; AVX2-NEXT: retq
; AVX2-NEXT: .p2align 4, 0x90
; AVX2-NEXT: .LBB0_8: # %for.body
; AVX2-NEXT: # in Loop: Header=BB0_6 Depth=1
; AVX2-NEXT: # kill: def $cl killed $cl killed $ecx
; AVX2-NEXT: shll %cl, (%rdi,%rdx,4)
; AVX2-NEXT: incq %rdx
; AVX2-NEXT: cmpq %rdx, %rax
; AVX2-NEXT: je .LBB0_9
; AVX2-NEXT: .LBB0_6: # %for.body
; AVX2-NEXT: # =>This Inner Loop Header: Depth=1
; AVX2-NEXT: cmpb $0, (%rsi,%rdx)
; AVX2-NEXT: movl %r9d, %ecx
; AVX2-NEXT: je .LBB0_8
; AVX2-NEXT: # %bb.7: # %for.body
; AVX2-NEXT: # in Loop: Header=BB0_6 Depth=1
; AVX2-NEXT: movl %r8d, %ecx
; AVX2-NEXT: jmp .LBB0_8
;
; XOP-LABEL: vector_variable_shift_left_loop:
; XOP: # %bb.0: # %entry
; XOP-NEXT: testl %edx, %edx
; XOP-NEXT: jle .LBB0_9
; XOP-NEXT: # %bb.1: # %for.body.preheader
; XOP-NEXT: movl %ecx, %r9d
; XOP-NEXT: movl %edx, %eax
; XOP-NEXT: cmpl $31, %edx
; XOP-NEXT: ja .LBB0_3
; XOP-NEXT: # %bb.2:
; XOP-NEXT: xorl %edx, %edx
; XOP-NEXT: jmp .LBB0_6
; XOP-NEXT: .LBB0_3: # %vector.ph
; XOP-NEXT: movl %eax, %edx
; XOP-NEXT: andl $-32, %edx
; XOP-NEXT: vmovd %r9d, %xmm0
; XOP-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[0,0,0,0]
; XOP-NEXT: vinsertf128 $1, %xmm0, %ymm0, %ymm9
; XOP-NEXT: vmovd %r8d, %xmm1
; XOP-NEXT: vpshufd {{.*#+}} xmm1 = xmm1[0,0,0,0]
; XOP-NEXT: vinsertf128 $1, %xmm1, %ymm1, %ymm14
; XOP-NEXT: xorl %ecx, %ecx
; XOP-NEXT: vpxor %xmm8, %xmm8, %xmm8
; XOP-NEXT: vextractf128 $1, %ymm9, %xmm15
; XOP-NEXT: vextractf128 $1, %ymm14, %xmm4
; XOP-NEXT: .p2align 4, 0x90
; XOP-NEXT: .LBB0_4: # %vector.body
; XOP-NEXT: # =>This Inner Loop Header: Depth=1
; XOP-NEXT: vmovq {{.*#+}} xmm5 = mem[0],zero
; XOP-NEXT: vmovq {{.*#+}} xmm6 = mem[0],zero
; XOP-NEXT: vmovq {{.*#+}} xmm7 = mem[0],zero
; XOP-NEXT: vmovq {{.*#+}} xmm2 = mem[0],zero
; XOP-NEXT: vpcomeqb %xmm8, %xmm5, %xmm5
; XOP-NEXT: vpmovsxbd %xmm5, %xmm0
; XOP-NEXT: vpshufd {{.*#+}} xmm5 = xmm5[1,1,1,1]
; XOP-NEXT: vpmovsxbd %xmm5, %xmm5
; XOP-NEXT: vpcomeqb %xmm8, %xmm6, %xmm6
; XOP-NEXT: vpmovsxbd %xmm6, %xmm10
; XOP-NEXT: vpshufd {{.*#+}} xmm6 = xmm6[1,1,1,1]
; XOP-NEXT: vpmovsxbd %xmm6, %xmm6
; XOP-NEXT: vpcomeqb %xmm8, %xmm7, %xmm7
; XOP-NEXT: vpmovsxbd %xmm7, %xmm11
; XOP-NEXT: vpshufd {{.*#+}} xmm7 = xmm7[1,1,1,1]
; XOP-NEXT: vpmovsxbd %xmm7, %xmm7
; XOP-NEXT: vpcomeqb %xmm8, %xmm2, %xmm2
; XOP-NEXT: vpmovsxbd %xmm2, %xmm12
; XOP-NEXT: vpshufd {{.*#+}} xmm2 = xmm2[1,1,1,1]
; XOP-NEXT: vpmovsxbd %xmm2, %xmm2
; XOP-NEXT: vblendvps %xmm5, %xmm15, %xmm4, %xmm5
; XOP-NEXT: vpshld %xmm5, 16(%rdi,%rcx,4), %xmm13
; XOP-NEXT: vblendvps %xmm0, %xmm9, %xmm14, %xmm0
; XOP-NEXT: vpshld %xmm0, (%rdi,%rcx,4), %xmm0
; XOP-NEXT: vblendvps %xmm6, %xmm15, %xmm4, %xmm6
; XOP-NEXT: vpshld %xmm6, 48(%rdi,%rcx,4), %xmm6
; XOP-NEXT: vblendvps %xmm10, %xmm9, %xmm14, %xmm5
; XOP-NEXT: vpshld %xmm5, 32(%rdi,%rcx,4), %xmm5
; XOP-NEXT: vblendvps %xmm7, %xmm15, %xmm4, %xmm7
; XOP-NEXT: vpshld %xmm7, 80(%rdi,%rcx,4), %xmm7
; XOP-NEXT: vblendvps %xmm11, %xmm9, %xmm14, %xmm1
; XOP-NEXT: vpshld %xmm1, 64(%rdi,%rcx,4), %xmm1
; XOP-NEXT: vblendvps %xmm2, %xmm15, %xmm4, %xmm2
; XOP-NEXT: vpshld %xmm2, 112(%rdi,%rcx,4), %xmm2
; XOP-NEXT: vblendvps %xmm12, %xmm9, %xmm14, %xmm3
; XOP-NEXT: vpshld %xmm3, 96(%rdi,%rcx,4), %xmm3
; XOP-NEXT: vmovdqu %xmm0, (%rdi,%rcx,4)
; XOP-NEXT: vmovdqu %xmm13, 16(%rdi,%rcx,4)
; XOP-NEXT: vmovdqu %xmm5, 32(%rdi,%rcx,4)
; XOP-NEXT: vmovdqu %xmm6, 48(%rdi,%rcx,4)
; XOP-NEXT: vmovdqu %xmm1, 64(%rdi,%rcx,4)
; XOP-NEXT: vmovdqu %xmm7, 80(%rdi,%rcx,4)
; XOP-NEXT: vmovdqu %xmm3, 96(%rdi,%rcx,4)
; XOP-NEXT: vmovdqu %xmm2, 112(%rdi,%rcx,4)
; XOP-NEXT: addq $32, %rcx
; XOP-NEXT: cmpq %rcx, %rdx
; XOP-NEXT: jne .LBB0_4
; XOP-NEXT: # %bb.5: # %middle.block
; XOP-NEXT: cmpq %rax, %rdx
; XOP-NEXT: jne .LBB0_6
; XOP-NEXT: .LBB0_9: # %for.cond.cleanup
; XOP-NEXT: vzeroupper
; XOP-NEXT: retq
; XOP-NEXT: .p2align 4, 0x90
; XOP-NEXT: .LBB0_8: # %for.body
; XOP-NEXT: # in Loop: Header=BB0_6 Depth=1
; XOP-NEXT: # kill: def $cl killed $cl killed $ecx
; XOP-NEXT: shll %cl, (%rdi,%rdx,4)
; XOP-NEXT: incq %rdx
; XOP-NEXT: cmpq %rdx, %rax
; XOP-NEXT: je .LBB0_9
; XOP-NEXT: .LBB0_6: # %for.body
; XOP-NEXT: # =>This Inner Loop Header: Depth=1
; XOP-NEXT: cmpb $0, (%rsi,%rdx)
; XOP-NEXT: movl %r9d, %ecx
; XOP-NEXT: je .LBB0_8
; XOP-NEXT: # %bb.7: # %for.body
; XOP-NEXT: # in Loop: Header=BB0_6 Depth=1
; XOP-NEXT: movl %r8d, %ecx
; XOP-NEXT: jmp .LBB0_8
entry:
%cmp12 = icmp sgt i32 %count, 0
br i1 %cmp12, label %for.body.preheader, label %for.cond.cleanup
for.body.preheader:
%wide.trip.count = zext i32 %count to i64
%min.iters.check = icmp ult i32 %count, 32
br i1 %min.iters.check, label %for.body.preheader40, label %vector.ph
for.body.preheader40:
%indvars.iv.ph = phi i64 [ 0, %for.body.preheader ], [ %n.vec, %middle.block ]
br label %for.body
vector.ph:
%n.vec = and i64 %wide.trip.count, 4294967264
%broadcast.splatinsert20 = insertelement <8 x i32> undef, i32 %amt0, i32 0
%broadcast.splat21 = shufflevector <8 x i32> %broadcast.splatinsert20, <8 x i32> undef, <8 x i32> zeroinitializer
%broadcast.splatinsert22 = insertelement <8 x i32> undef, i32 %amt1, i32 0
%broadcast.splat23 = shufflevector <8 x i32> %broadcast.splatinsert22, <8 x i32> undef, <8 x i32> zeroinitializer
%broadcast.splatinsert24 = insertelement <8 x i32> undef, i32 %amt0, i32 0
%broadcast.splat25 = shufflevector <8 x i32> %broadcast.splatinsert24, <8 x i32> undef, <8 x i32> zeroinitializer
%broadcast.splatinsert26 = insertelement <8 x i32> undef, i32 %amt1, i32 0
%broadcast.splat27 = shufflevector <8 x i32> %broadcast.splatinsert26, <8 x i32> undef, <8 x i32> zeroinitializer
%broadcast.splatinsert28 = insertelement <8 x i32> undef, i32 %amt0, i32 0
%broadcast.splat29 = shufflevector <8 x i32> %broadcast.splatinsert28, <8 x i32> undef, <8 x i32> zeroinitializer
%broadcast.splatinsert30 = insertelement <8 x i32> undef, i32 %amt1, i32 0
%broadcast.splat31 = shufflevector <8 x i32> %broadcast.splatinsert30, <8 x i32> undef, <8 x i32> zeroinitializer
%broadcast.splatinsert32 = insertelement <8 x i32> undef, i32 %amt0, i32 0
%broadcast.splat33 = shufflevector <8 x i32> %broadcast.splatinsert32, <8 x i32> undef, <8 x i32> zeroinitializer
%broadcast.splatinsert34 = insertelement <8 x i32> undef, i32 %amt1, i32 0
%broadcast.splat35 = shufflevector <8 x i32> %broadcast.splatinsert34, <8 x i32> undef, <8 x i32> zeroinitializer
br label %vector.body
vector.body:
%index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
%0 = getelementptr inbounds i8, i8* %control, i64 %index
%1 = bitcast i8* %0 to <8 x i8>*
%wide.load = load <8 x i8>, <8 x i8>* %1, align 1
%2 = getelementptr inbounds i8, i8* %0, i64 8
%3 = bitcast i8* %2 to <8 x i8>*
%wide.load17 = load <8 x i8>, <8 x i8>* %3, align 1
%4 = getelementptr inbounds i8, i8* %0, i64 16
%5 = bitcast i8* %4 to <8 x i8>*
%wide.load18 = load <8 x i8>, <8 x i8>* %5, align 1
%6 = getelementptr inbounds i8, i8* %0, i64 24
%7 = bitcast i8* %6 to <8 x i8>*
%wide.load19 = load <8 x i8>, <8 x i8>* %7, align 1
%8 = icmp eq <8 x i8> %wide.load, zeroinitializer
%9 = icmp eq <8 x i8> %wide.load17, zeroinitializer
%10 = icmp eq <8 x i8> %wide.load18, zeroinitializer
%11 = icmp eq <8 x i8> %wide.load19, zeroinitializer
%12 = select <8 x i1> %8, <8 x i32> %broadcast.splat21, <8 x i32> %broadcast.splat23
%13 = select <8 x i1> %9, <8 x i32> %broadcast.splat25, <8 x i32> %broadcast.splat27
%14 = select <8 x i1> %10, <8 x i32> %broadcast.splat29, <8 x i32> %broadcast.splat31
%15 = select <8 x i1> %11, <8 x i32> %broadcast.splat33, <8 x i32> %broadcast.splat35
%16 = getelementptr inbounds i32, i32* %arr, i64 %index
%17 = bitcast i32* %16 to <8 x i32>*
%wide.load36 = load <8 x i32>, <8 x i32>* %17, align 4
%18 = getelementptr inbounds i32, i32* %16, i64 8
%19 = bitcast i32* %18 to <8 x i32>*
%wide.load37 = load <8 x i32>, <8 x i32>* %19, align 4
%20 = getelementptr inbounds i32, i32* %16, i64 16
%21 = bitcast i32* %20 to <8 x i32>*
%wide.load38 = load <8 x i32>, <8 x i32>* %21, align 4
%22 = getelementptr inbounds i32, i32* %16, i64 24
%23 = bitcast i32* %22 to <8 x i32>*
%wide.load39 = load <8 x i32>, <8 x i32>* %23, align 4
%24 = shl <8 x i32> %wide.load36, %12
%25 = shl <8 x i32> %wide.load37, %13
%26 = shl <8 x i32> %wide.load38, %14
%27 = shl <8 x i32> %wide.load39, %15
%28 = bitcast i32* %16 to <8 x i32>*
store <8 x i32> %24, <8 x i32>* %28, align 4
%29 = bitcast i32* %18 to <8 x i32>*
store <8 x i32> %25, <8 x i32>* %29, align 4
%30 = bitcast i32* %20 to <8 x i32>*
store <8 x i32> %26, <8 x i32>* %30, align 4
%31 = bitcast i32* %22 to <8 x i32>*
store <8 x i32> %27, <8 x i32>* %31, align 4
%index.next = add i64 %index, 32
%32 = icmp eq i64 %index.next, %n.vec
br i1 %32, label %middle.block, label %vector.body
middle.block:
%cmp.n = icmp eq i64 %n.vec, %wide.trip.count
br i1 %cmp.n, label %for.cond.cleanup, label %for.body.preheader40
for.cond.cleanup:
ret void
for.body:
%indvars.iv = phi i64 [ %indvars.iv.next, %for.body ], [ %indvars.iv.ph, %for.body.preheader40 ]
%arrayidx = getelementptr inbounds i8, i8* %control, i64 %indvars.iv
%33 = load i8, i8* %arrayidx, align 1
%tobool = icmp eq i8 %33, 0
%cond = select i1 %tobool, i32 %amt0, i32 %amt1
%arrayidx2 = getelementptr inbounds i32, i32* %arr, i64 %indvars.iv
%34 = load i32, i32* %arrayidx2, align 4
%shl = shl i32 %34, %cond
store i32 %shl, i32* %arrayidx2, align 4
%indvars.iv.next = add nuw nsw i64 %indvars.iv, 1
%exitcond = icmp eq i64 %indvars.iv.next, %wide.trip.count
br i1 %exitcond, label %for.cond.cleanup, label %for.body
}
define void @vector_variable_shift_left_loop_simpler(i32* nocapture %arr, i8* nocapture readonly %control, i32 %count, i32 %amt0, i32 %amt1, i32 %x) nounwind {
; SSE-LABEL: vector_variable_shift_left_loop_simpler:
; SSE: # %bb.0: # %entry
; SSE-NEXT: testl %edx, %edx
; SSE-NEXT: jle .LBB1_3
; SSE-NEXT: # %bb.1: # %vector.ph
; SSE-NEXT: movl %edx, %eax
; SSE-NEXT: andl $-4, %eax
; SSE-NEXT: movd %ecx, %xmm0
; SSE-NEXT: movd %r8d, %xmm3
; SSE-NEXT: movd %r9d, %xmm1
; SSE-NEXT: pshufd {{.*#+}} xmm1 = xmm1[0,0,0,0]
; SSE-NEXT: xorl %ecx, %ecx
; SSE-NEXT: pmovzxdq {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero
; SSE-NEXT: movdqa %xmm1, %xmm2
; SSE-NEXT: pslld %xmm0, %xmm2
; SSE-NEXT: pmovzxdq {{.*#+}} xmm0 = xmm3[0],zero,xmm3[1],zero
; SSE-NEXT: pslld %xmm0, %xmm1
; SSE-NEXT: pxor %xmm3, %xmm3
; SSE-NEXT: .p2align 4, 0x90
; SSE-NEXT: .LBB1_2: # %vector.body
; SSE-NEXT: # =>This Inner Loop Header: Depth=1
; SSE-NEXT: pmovzxbd {{.*#+}} xmm0 = mem[0],zero,zero,zero,mem[1],zero,zero,zero,mem[2],zero,zero,zero,mem[3],zero,zero,zero
; SSE-NEXT: pcmpeqd %xmm3, %xmm0
; SSE-NEXT: movdqa %xmm1, %xmm4
; SSE-NEXT: blendvps %xmm0, %xmm2, %xmm4
; SSE-NEXT: movups %xmm4, (%rdi,%rcx,4)
; SSE-NEXT: addq $4, %rcx
; SSE-NEXT: cmpq %rcx, %rax
; SSE-NEXT: jne .LBB1_2
; SSE-NEXT: .LBB1_3: # %exit
; SSE-NEXT: retq
;
; AVX1-LABEL: vector_variable_shift_left_loop_simpler:
; AVX1: # %bb.0: # %entry
; AVX1-NEXT: testl %edx, %edx
; AVX1-NEXT: jle .LBB1_3
; AVX1-NEXT: # %bb.1: # %vector.ph
; AVX1-NEXT: movl %edx, %eax
; AVX1-NEXT: andl $-4, %eax
; AVX1-NEXT: vmovd %ecx, %xmm0
; AVX1-NEXT: vmovd %r8d, %xmm1
; AVX1-NEXT: vmovd %r9d, %xmm2
; AVX1-NEXT: vpshufd {{.*#+}} xmm2 = xmm2[0,0,0,0]
; AVX1-NEXT: xorl %ecx, %ecx
; AVX1-NEXT: vpmovzxdq {{.*#+}} xmm0 = xmm0[0],zero,xmm0[1],zero
; AVX1-NEXT: vpslld %xmm0, %xmm2, %xmm0
; AVX1-NEXT: vpmovzxdq {{.*#+}} xmm1 = xmm1[0],zero,xmm1[1],zero
; AVX1-NEXT: vpslld %xmm1, %xmm2, %xmm1
; AVX1-NEXT: vpxor %xmm2, %xmm2, %xmm2
; AVX1-NEXT: .p2align 4, 0x90
; AVX1-NEXT: .LBB1_2: # %vector.body
; AVX1-NEXT: # =>This Inner Loop Header: Depth=1
; AVX1-NEXT: vpmovzxbd {{.*#+}} xmm3 = mem[0],zero,zero,zero,mem[1],zero,zero,zero,mem[2],zero,zero,zero,mem[3],zero,zero,zero
; AVX1-NEXT: vpcmpeqd %xmm2, %xmm3, %xmm3
; AVX1-NEXT: vblendvps %xmm3, %xmm0, %xmm1, %xmm3
; AVX1-NEXT: vmovups %xmm3, (%rdi,%rcx,4)
; AVX1-NEXT: addq $4, %rcx
; AVX1-NEXT: cmpq %rcx, %rax
; AVX1-NEXT: jne .LBB1_2
; AVX1-NEXT: .LBB1_3: # %exit
; AVX1-NEXT: retq
;
; AVX2-LABEL: vector_variable_shift_left_loop_simpler:
; AVX2: # %bb.0: # %entry
; AVX2-NEXT: testl %edx, %edx
; AVX2-NEXT: jle .LBB1_3
; AVX2-NEXT: # %bb.1: # %vector.ph
; AVX2-NEXT: movl %edx, %eax
; AVX2-NEXT: andl $-4, %eax
; AVX2-NEXT: vmovd %ecx, %xmm0
; AVX2-NEXT: vpbroadcastd %xmm0, %xmm0
; AVX2-NEXT: vmovd %r8d, %xmm1
; AVX2-NEXT: vpbroadcastd %xmm1, %xmm1
; AVX2-NEXT: vmovd %r9d, %xmm2
; AVX2-NEXT: vpbroadcastd %xmm2, %xmm2
; AVX2-NEXT: xorl %ecx, %ecx
; AVX2-NEXT: vpxor %xmm3, %xmm3, %xmm3
; AVX2-NEXT: .p2align 4, 0x90
; AVX2-NEXT: .LBB1_2: # %vector.body
; AVX2-NEXT: # =>This Inner Loop Header: Depth=1
; AVX2-NEXT: vpmovzxbd {{.*#+}} xmm4 = mem[0],zero,zero,zero,mem[1],zero,zero,zero,mem[2],zero,zero,zero,mem[3],zero,zero,zero
; AVX2-NEXT: vpcmpeqd %xmm3, %xmm4, %xmm4
; AVX2-NEXT: vblendvps %xmm4, %xmm0, %xmm1, %xmm4
; AVX2-NEXT: vpsllvd %xmm4, %xmm2, %xmm4
; AVX2-NEXT: vmovdqu %xmm4, (%rdi,%rcx,4)
; AVX2-NEXT: addq $4, %rcx
; AVX2-NEXT: cmpq %rcx, %rax
; AVX2-NEXT: jne .LBB1_2
; AVX2-NEXT: .LBB1_3: # %exit
; AVX2-NEXT: retq
;
; XOP-LABEL: vector_variable_shift_left_loop_simpler:
; XOP: # %bb.0: # %entry
; XOP-NEXT: testl %edx, %edx
; XOP-NEXT: jle .LBB1_3
; XOP-NEXT: # %bb.1: # %vector.ph
; XOP-NEXT: movl %edx, %eax
; XOP-NEXT: andl $-4, %eax
; XOP-NEXT: vmovd %ecx, %xmm0
; XOP-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[0,0,0,0]
; XOP-NEXT: vmovd %r8d, %xmm1
; XOP-NEXT: vpshufd {{.*#+}} xmm1 = xmm1[0,0,0,0]
; XOP-NEXT: vmovd %r9d, %xmm2
; XOP-NEXT: vpshufd {{.*#+}} xmm2 = xmm2[0,0,0,0]
; XOP-NEXT: xorl %ecx, %ecx
; XOP-NEXT: vpxor %xmm3, %xmm3, %xmm3
; XOP-NEXT: .p2align 4, 0x90
; XOP-NEXT: .LBB1_2: # %vector.body
; XOP-NEXT: # =>This Inner Loop Header: Depth=1
; XOP-NEXT: vpmovzxbd {{.*#+}} xmm4 = mem[0],zero,zero,zero,mem[1],zero,zero,zero,mem[2],zero,zero,zero,mem[3],zero,zero,zero
; XOP-NEXT: vpcomeqd %xmm3, %xmm4, %xmm4
; XOP-NEXT: vblendvps %xmm4, %xmm0, %xmm1, %xmm4
; XOP-NEXT: vpshld %xmm4, %xmm2, %xmm4
; XOP-NEXT: vmovdqu %xmm4, (%rdi,%rcx,4)
; XOP-NEXT: addq $4, %rcx
; XOP-NEXT: cmpq %rcx, %rax
; XOP-NEXT: jne .LBB1_2
; XOP-NEXT: .LBB1_3: # %exit
; XOP-NEXT: retq
entry:
%cmp16 = icmp sgt i32 %count, 0
%wide.trip.count = zext i32 %count to i64
br i1 %cmp16, label %vector.ph, label %exit
vector.ph:
%n.vec = and i64 %wide.trip.count, 4294967292
%splatinsert18 = insertelement <4 x i32> undef, i32 %amt0, i32 0
%splat1 = shufflevector <4 x i32> %splatinsert18, <4 x i32> undef, <4 x i32> zeroinitializer
%splatinsert20 = insertelement <4 x i32> undef, i32 %amt1, i32 0
%splat2 = shufflevector <4 x i32> %splatinsert20, <4 x i32> undef, <4 x i32> zeroinitializer
%splatinsert22 = insertelement <4 x i32> undef, i32 %x, i32 0
%splat3 = shufflevector <4 x i32> %splatinsert22, <4 x i32> undef, <4 x i32> zeroinitializer
br label %vector.body
vector.body:
%index = phi i64 [ 0, %vector.ph ], [ %index.next, %vector.body ]
%0 = getelementptr inbounds i8, i8* %control, i64 %index
%1 = bitcast i8* %0 to <4 x i8>*
%wide.load = load <4 x i8>, <4 x i8>* %1, align 1
%2 = icmp eq <4 x i8> %wide.load, zeroinitializer
%3 = select <4 x i1> %2, <4 x i32> %splat1, <4 x i32> %splat2
%4 = shl <4 x i32> %splat3, %3
%5 = getelementptr inbounds i32, i32* %arr, i64 %index
%6 = bitcast i32* %5 to <4 x i32>*
store <4 x i32> %4, <4 x i32>* %6, align 4
%index.next = add i64 %index, 4
%7 = icmp eq i64 %index.next, %n.vec
br i1 %7, label %exit, label %vector.body
exit:
ret void
}