13c359aa9b
We were scalarizing these truncations, but in most cases we can widen the source vector to 128-bits and perform the truncation as a shuffle directly (which will usually lower as a PACK or PSHUFB). For the cases where the widening and shuffle isn't legal we can leave it to generic legalization to scalarize for us. Fixes #81883
171 lines
7.1 KiB
LLVM
171 lines
7.1 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-- -mattr=sse2 | FileCheck %s --check-prefixes=SSE,SSE2
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; RUN: llc < %s -mtriple=x86_64-- -mattr=sse4.2 | FileCheck %s --check-prefixes=SSE,SSE42
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; RUN: llc < %s -mtriple=x86_64-- -mattr=avx | FileCheck %s --check-prefixes=AVX,AVX1
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; RUN: llc < %s -mtriple=x86_64-- -mattr=avx2 | FileCheck %s --check-prefixes=AVX,AVX2
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; RUN: llc < %s -mtriple=x86_64-- -mattr=avx512f | FileCheck %s --check-prefixes=AVX,AVX512F
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define void @foo(<4 x float> %in, ptr %out) {
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; SSE2-LABEL: foo:
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; SSE2: # %bb.0:
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; SSE2-NEXT: cvttps2dq %xmm0, %xmm0
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; SSE2-NEXT: pand {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
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; SSE2-NEXT: packuswb %xmm0, %xmm0
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; SSE2-NEXT: packuswb %xmm0, %xmm0
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; SSE2-NEXT: por {{\.?LCPI[0-9]+_[0-9]+}}(%rip), %xmm0
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; SSE2-NEXT: movd %xmm0, (%rdi)
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; SSE2-NEXT: retq
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;
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; SSE42-LABEL: foo:
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; SSE42: # %bb.0:
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; SSE42-NEXT: cvttps2dq %xmm0, %xmm0
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; SSE42-NEXT: pshufb {{.*#+}} xmm0 = xmm0[0,4,8,u,u,u,u,u,u,u,u,u,u,u,u,u]
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; SSE42-NEXT: movl $255, %eax
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; SSE42-NEXT: pinsrb $3, %eax, %xmm0
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; SSE42-NEXT: movd %xmm0, (%rdi)
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; SSE42-NEXT: retq
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;
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; AVX-LABEL: foo:
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; AVX: # %bb.0:
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; AVX-NEXT: vcvttps2dq %xmm0, %xmm0
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; AVX-NEXT: vpshufb {{.*#+}} xmm0 = xmm0[0,4,8,u,u,u,u,u,u,u,u,u,u,u,u,u]
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; AVX-NEXT: movl $255, %eax
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; AVX-NEXT: vpinsrb $3, %eax, %xmm0, %xmm0
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; AVX-NEXT: vmovd %xmm0, (%rdi)
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; AVX-NEXT: retq
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%t0 = fptosi <4 x float> %in to <4 x i32>
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%t1 = trunc <4 x i32> %t0 to <4 x i16>
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%t2 = shufflevector <4 x i16> %t1, <4 x i16> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
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%t3 = trunc <8 x i16> %t2 to <8 x i8>
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%t4 = shufflevector <8 x i8> %t3, <8 x i8> undef, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
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%t5 = insertelement <4 x i8> %t4, i8 -1, i32 3
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store <4 x i8> %t5, ptr %out
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ret void
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}
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define <16 x i64> @catcat(<4 x i64> %x) {
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; SSE-LABEL: catcat:
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; SSE: # %bb.0:
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; SSE-NEXT: movq %rdi, %rax
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; SSE-NEXT: pshufd {{.*#+}} xmm2 = xmm0[0,1,0,1]
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; SSE-NEXT: pshufd {{.*#+}} xmm0 = xmm0[2,3,2,3]
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; SSE-NEXT: pshufd {{.*#+}} xmm3 = xmm1[0,1,0,1]
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; SSE-NEXT: pshufd {{.*#+}} xmm1 = xmm1[2,3,2,3]
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; SSE-NEXT: movdqa %xmm1, 112(%rdi)
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; SSE-NEXT: movdqa %xmm1, 96(%rdi)
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; SSE-NEXT: movdqa %xmm3, 80(%rdi)
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; SSE-NEXT: movdqa %xmm3, 64(%rdi)
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; SSE-NEXT: movdqa %xmm0, 48(%rdi)
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; SSE-NEXT: movdqa %xmm0, 32(%rdi)
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; SSE-NEXT: movdqa %xmm2, 16(%rdi)
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; SSE-NEXT: movdqa %xmm2, (%rdi)
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; SSE-NEXT: retq
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;
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; AVX1-LABEL: catcat:
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; AVX1: # %bb.0:
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; AVX1-NEXT: vshufps {{.*#+}} xmm1 = xmm0[0,1,0,1]
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; AVX1-NEXT: vinsertf128 $1, %xmm1, %ymm1, %ymm4
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; AVX1-NEXT: vshufps {{.*#+}} xmm1 = xmm0[2,3,2,3]
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; AVX1-NEXT: vinsertf128 $1, %xmm1, %ymm1, %ymm1
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; AVX1-NEXT: vperm2f128 {{.*#+}} ymm0 = ymm0[2,3,2,3]
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; AVX1-NEXT: vmovddup {{.*#+}} ymm2 = ymm0[0,0,2,2]
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; AVX1-NEXT: vshufpd {{.*#+}} ymm3 = ymm0[1,1,3,3]
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; AVX1-NEXT: vmovaps %ymm4, %ymm0
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; AVX1-NEXT: retq
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;
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; AVX2-LABEL: catcat:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vpermpd {{.*#+}} ymm1 = ymm0[1,1,1,1]
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; AVX2-NEXT: vpermpd {{.*#+}} ymm2 = ymm0[2,2,2,2]
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; AVX2-NEXT: vpermpd {{.*#+}} ymm3 = ymm0[3,3,3,3]
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; AVX2-NEXT: vbroadcastsd %xmm0, %ymm0
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; AVX2-NEXT: retq
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;
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; AVX512F-LABEL: catcat:
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; AVX512F: # %bb.0:
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; AVX512F-NEXT: # kill: def $ymm0 killed $ymm0 def $zmm0
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; AVX512F-NEXT: vmovaps {{.*#+}} zmm1 = [0,0,0,0,1,1,1,1]
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; AVX512F-NEXT: vpermpd %zmm0, %zmm1, %zmm2
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; AVX512F-NEXT: vmovaps {{.*#+}} zmm1 = [2,2,2,2,3,3,3,3]
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; AVX512F-NEXT: vpermpd %zmm0, %zmm1, %zmm1
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; AVX512F-NEXT: vmovaps %zmm2, %zmm0
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; AVX512F-NEXT: retq
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%cat1 = shufflevector <4 x i64> %x, <4 x i64> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 0, i32 1, i32 2, i32 3>
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%cat2 = shufflevector <8 x i64> %cat1, <8 x i64> undef, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
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%r = shufflevector <16 x i64> %cat2, <16 x i64> undef, <16 x i32> <i32 0, i32 4, i32 8, i32 12, i32 1, i32 5, i32 9, i32 13, i32 2, i32 6, i32 10, i32 14, i32 3, i32 7, i32 11, i32 15>
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ret <16 x i64> %r
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}
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define <16 x i64> @load_catcat(ptr %p) {
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; SSE-LABEL: load_catcat:
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; SSE: # %bb.0:
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; SSE-NEXT: movq %rdi, %rax
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; SSE-NEXT: movdqa (%rsi), %xmm0
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; SSE-NEXT: movdqa 16(%rsi), %xmm1
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; SSE-NEXT: pshufd {{.*#+}} xmm2 = xmm0[0,1,0,1]
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; SSE-NEXT: pshufd {{.*#+}} xmm0 = xmm0[2,3,2,3]
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; SSE-NEXT: pshufd {{.*#+}} xmm3 = xmm1[0,1,0,1]
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; SSE-NEXT: pshufd {{.*#+}} xmm1 = xmm1[2,3,2,3]
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; SSE-NEXT: movdqa %xmm1, 112(%rdi)
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; SSE-NEXT: movdqa %xmm1, 96(%rdi)
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; SSE-NEXT: movdqa %xmm3, 80(%rdi)
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; SSE-NEXT: movdqa %xmm3, 64(%rdi)
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; SSE-NEXT: movdqa %xmm0, 48(%rdi)
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; SSE-NEXT: movdqa %xmm0, 32(%rdi)
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; SSE-NEXT: movdqa %xmm2, 16(%rdi)
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; SSE-NEXT: movdqa %xmm2, (%rdi)
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; SSE-NEXT: retq
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;
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; AVX1-LABEL: load_catcat:
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; AVX1: # %bb.0:
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; AVX1-NEXT: vbroadcastsd (%rdi), %ymm0
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; AVX1-NEXT: vbroadcastsd 8(%rdi), %ymm1
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; AVX1-NEXT: vbroadcastsd 16(%rdi), %ymm2
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; AVX1-NEXT: vbroadcastsd 24(%rdi), %ymm3
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; AVX1-NEXT: retq
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;
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; AVX2-LABEL: load_catcat:
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; AVX2: # %bb.0:
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; AVX2-NEXT: vbroadcastsd (%rdi), %ymm0
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; AVX2-NEXT: vbroadcastsd 8(%rdi), %ymm1
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; AVX2-NEXT: vbroadcastsd 16(%rdi), %ymm2
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; AVX2-NEXT: vbroadcastsd 24(%rdi), %ymm3
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; AVX2-NEXT: retq
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;
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; AVX512F-LABEL: load_catcat:
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; AVX512F: # %bb.0:
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; AVX512F-NEXT: vbroadcasti64x4 {{.*#+}} zmm1 = mem[0,1,2,3,0,1,2,3]
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; AVX512F-NEXT: vpmovsxbq {{.*#+}} zmm0 = [0,4,0,4,1,5,1,5]
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; AVX512F-NEXT: vpermq %zmm1, %zmm0, %zmm0
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; AVX512F-NEXT: vpmovsxbq {{.*#+}} zmm2 = [2,6,2,6,3,7,3,7]
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; AVX512F-NEXT: vpermq %zmm1, %zmm2, %zmm1
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; AVX512F-NEXT: retq
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%x = load <4 x i64>, ptr %p
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%cat1 = shufflevector <4 x i64> %x, <4 x i64> undef, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 0, i32 1, i32 2, i32 3>
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%cat2 = shufflevector <8 x i64> %cat1, <8 x i64> undef, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
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%r = shufflevector <16 x i64> %cat2, <16 x i64> undef, <16 x i32> <i32 0, i32 4, i32 8, i32 12, i32 1, i32 5, i32 9, i32 13, i32 2, i32 6, i32 10, i32 14, i32 3, i32 7, i32 11, i32 15>
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ret <16 x i64> %r
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}
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; Use weird types to make sure we do not miscompile a case where
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; the source ops are not an even multiple size of the result.
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define <4 x i32> @cat_ext_straddle(ptr %px, ptr %py) {
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; SSE-LABEL: cat_ext_straddle:
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; SSE: # %bb.0:
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; SSE-NEXT: movaps 16(%rdi), %xmm0
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; SSE-NEXT: unpcklpd {{.*#+}} xmm0 = xmm0[0],mem[0]
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; SSE-NEXT: retq
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;
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; AVX-LABEL: cat_ext_straddle:
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; AVX: # %bb.0:
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; AVX-NEXT: vmovaps 16(%rdi), %xmm0
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; AVX-NEXT: vunpcklpd {{.*#+}} xmm0 = xmm0[0],mem[0]
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; AVX-NEXT: retq
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%x = load <6 x i32>, ptr %px
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%y = load <6 x i32>, ptr %py
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%cat = shufflevector <6 x i32> %x, <6 x i32> %y, <12 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 8, i32 9, i32 10, i32 11>
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%ext = shufflevector <12 x i32> %cat, <12 x i32> undef, <4 x i32> <i32 4, i32 5, i32 6, i32 7>
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ret <4 x i32> %ext
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}
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