33 lines
1.4 KiB
LLVM
33 lines
1.4 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
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; RUN: llc < %s -mtriple=x86_64-unknown-linux -mcpu=corei7-avx | FileCheck %s
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; These tests check that an insert_subvector which replaces one of the halves
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; of a concat_vectors is optimized into a single vinsertf128.
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declare <8 x float> @llvm.x86.avx.vinsertf128.ps.256(<8 x float>, <4 x float>, i8)
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define <8 x float> @lower_half(<4 x float> %v1, <4 x float> %v2, <4 x float> %v3) {
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; CHECK-LABEL: lower_half:
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; CHECK: # %bb.0:
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; CHECK-NEXT: # kill: def $xmm2 killed $xmm2 def $ymm2
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; CHECK-NEXT: vinsertf128 $1, %xmm1, %ymm2, %ymm0
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; CHECK-NEXT: retq
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%1 = shufflevector <4 x float> %v1, <4 x float> %v2, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
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%2 = tail call <8 x float> @llvm.x86.avx.vinsertf128.ps.256(<8 x float> %1, <4 x float> %v3, i8 0)
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ret <8 x float> %2
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}
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define <8 x float> @upper_half(<4 x float> %v1, <4 x float> %v2, <4 x float> %v3) {
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; CHECK-LABEL: upper_half:
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; CHECK: # %bb.0:
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; CHECK-NEXT: # kill: def $xmm0 killed $xmm0 def $ymm0
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; CHECK-NEXT: vinsertf128 $1, %xmm2, %ymm0, %ymm0
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; CHECK-NEXT: retq
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%1 = shufflevector <4 x float> %v1, <4 x float> %v2, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 6, i32 7>
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%2 = tail call <8 x float> @llvm.x86.avx.vinsertf128.ps.256(<8 x float> %1, <4 x float> %v3, i8 1)
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ret <8 x float> %2
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}
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