maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity

[X86][AVX] Add PR49971 test case 

This is a llvm12 only bug, and is already avoided in trunk, but we should keep track of it.
This commit is contained in:
Simon Pilgrim 2021-04-22 10:57:19 +01:00
parent 3bcd0ece43
commit e28ae5e530
1 changed files with 11 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
llvm/test/CodeGen/X86/horizontal-shuffle-3.ll
View File

@ -98,6 +98,17 @@ define <8 x i32> @test_unpackhi_hsub_v8i32(<8 x i32> %0, <8 x i32> %1, <8 x i32>
ret <8 x i32> %7
}
define <4 x double> @PR49971(<4 x double> %0) {
; CHECK-LABEL: PR49971:
; CHECK: ## %bb.0:
; CHECK-NEXT: vhaddpd %xmm0, %xmm0, %xmm0
; CHECK-NEXT: vbroadcastsd %xmm0, %ymm0
; CHECK-NEXT: ret{{[l|q]}}
%2 = tail call <4 x double> @llvm.x86.avx.hadd.pd.256(<4 x double> %0, <4 x double> %0)
%3 = shufflevector <4 x double> %2, <4 x double> undef, <4 x i32> <i32 0, i32 1, i32 0, i32 1>
ret <4 x double> %3
}
declare <8 x float> @llvm.x86.avx.hadd.ps.256(<8 x float>, <8 x float>)
declare <8 x float> @llvm.x86.avx.hsub.ps.256(<8 x float>, <8 x float>)
declare <4 x double> @llvm.x86.avx.hadd.pd.256(<4 x double>, <4 x double>)