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[X86][AVX512] Add target shuffle test showing missing PSHUFPD combine.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@289400 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Simon Pilgrim 2016-12-11 19:41:23 +00:00
parent cfc6ce983e
commit 73f20efb6b
1 changed files with 16 additions and 0 deletions
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16
test/CodeGen/X86/vector-shuffle-combining-avx512bw.ll
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@ -855,6 +855,22 @@ define <8 x double> @combine_vpermi2var_8f64_identity(<8 x double> %x0, <8 x dou
ret <8 x double> %res1
}
define <8 x double> @combine_vpermi2var_8f64_as_shufpd(<8 x double> %x0, <8 x double> %x1) {
; X32-LABEL: combine_vpermi2var_8f64_as_shufpd:
; X32: # BB#0:
; X32-NEXT: vmovapd {{.*#+}} zmm2 = [1,0,8,0,2,0,10,0,5,0,13,0,6,0,15,0]
; X32-NEXT: vpermt2pd %zmm1, %zmm2, %zmm0
; X32-NEXT: retl
;
; X64-LABEL: combine_vpermi2var_8f64_as_shufpd:
; X64: # BB#0:
; X64-NEXT: vmovapd {{.*#+}} zmm2 = [1,8,2,10,5,13,6,15]
; X64-NEXT: vpermt2pd %zmm1, %zmm2, %zmm0
; X64-NEXT: retq
%1 = call <8 x double> @llvm.x86.avx512.mask.vpermi2var.pd.512(<8 x double> %x0, <8 x i64> <i64 1, i64 8, i64 2, i64 10, i64 5, i64 13, i64 6, i64 15>, <8 x double> %x1, i8 -1)
ret <8 x double> %1
}
define <8 x i64> @combine_vpermi2var_8i64_identity(<8 x i64> %x0, <8 x i64> %x1) {
; X32-LABEL: combine_vpermi2var_8i64_identity:
; X32: # BB#0: