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cdfe078a42
When lowering two blended PACKUS, we used to disregard the types
of the PACKUS inputs, indiscriminately generating a v16i8 PACKUS.
This leads to non-selectable things like:
(v16i8 (PACKUS (v4i32 v0), (v4i32 v1)))
Instead, check that the PACKUSes have the same type, and use that
as the final result type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@274138 91177308-0d34-0410-b5e6-96231b3b80d8
60 lines
2.6 KiB
LLVM
60 lines
2.6 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=+sse4.1 | FileCheck %s --check-prefix=ALL --check-prefix=SSE41
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; RUN: llc < %s -mtriple=x86_64-- -mattr=+avx | FileCheck %s --check-prefix=ALL --check-prefix=AVX
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define <8 x i16> @blend_packusdw(<4 x i32> %a0, <4 x i32> %a1, <4 x i32> %a2, <4 x i32> %a3) {
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; SSE41-LABEL: blend_packusdw:
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; SSE41: # BB#0:
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; SSE41-NEXT: packusdw %xmm2, %xmm0
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; SSE41-NEXT: retq
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;
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; AVX-LABEL: blend_packusdw:
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; AVX: # BB#0:
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; AVX-NEXT: vpackusdw %xmm2, %xmm0, %xmm0
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; AVX-NEXT: retq
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%p0 = call <8 x i16> @llvm.x86.sse41.packusdw(<4 x i32> %a0, <4 x i32> %a1)
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%p1 = call <8 x i16> @llvm.x86.sse41.packusdw(<4 x i32> %a2, <4 x i32> %a3)
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%s0 = shufflevector <8 x i16> %p0, <8 x i16> %p1, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 8, i32 9, i32 10, i32 11>
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ret <8 x i16> %s0
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}
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define <16 x i8> @blend_packuswb(<8 x i16> %a0, <8 x i16> %a1, <8 x i16> %a2, <8 x i16> %a3) {
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; SSE41-LABEL: blend_packuswb:
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; SSE41: # BB#0:
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; SSE41-NEXT: packuswb %xmm2, %xmm0
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; SSE41-NEXT: retq
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;
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; AVX-LABEL: blend_packuswb:
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; AVX: # BB#0:
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; AVX-NEXT: vpackuswb %xmm2, %xmm0, %xmm0
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; AVX-NEXT: retq
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%p0 = call <16 x i8> @llvm.x86.sse2.packuswb.128(<8 x i16> %a0, <8 x i16> %a1)
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%p1 = call <16 x i8> @llvm.x86.sse2.packuswb.128(<8 x i16> %a2, <8 x i16> %a3)
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%s0 = shufflevector <16 x i8> %p0, <16 x i8> %p1, <16 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7, i32 16, i32 17, i32 18, i32 19, i32 20, i32 21, i32 22, i32 23>
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ret <16 x i8> %s0
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}
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define <8 x i16> @blend_packusdw_packuswb(<4 x i32> %a0, <4 x i32> %a1, <8 x i16> %a2, <8 x i16> %a3) {
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; SSE41-LABEL: blend_packusdw_packuswb:
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; SSE41: # BB#0:
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; SSE41-NEXT: packusdw %xmm1, %xmm0
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; SSE41-NEXT: packuswb %xmm3, %xmm2
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; SSE41-NEXT: punpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm2[0]
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; SSE41-NEXT: retq
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;
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; AVX-LABEL: blend_packusdw_packuswb:
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; AVX: # BB#0:
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; AVX-NEXT: vpackusdw %xmm1, %xmm0, %xmm0
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; AVX-NEXT: vpackuswb %xmm3, %xmm2, %xmm1
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; AVX-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm0[0],xmm1[0]
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; AVX-NEXT: retq
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%p0 = call <8 x i16> @llvm.x86.sse41.packusdw(<4 x i32> %a0, <4 x i32> %a1)
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%p1 = call <16 x i8> @llvm.x86.sse2.packuswb.128(<8 x i16> %a2, <8 x i16> %a3)
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%b1 = bitcast <16 x i8> %p1 to <8 x i16>
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%s0 = shufflevector <8 x i16> %p0, <8 x i16> %b1, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 8, i32 9, i32 10, i32 11>
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ret <8 x i16> %s0
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}
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declare <16 x i8> @llvm.x86.sse2.packuswb.128(<8 x i16>, <8 x i16>)
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declare <8 x i16> @llvm.x86.sse41.packusdw(<4 x i32>, <4 x i32>)
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