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[X86] Add another test case for the bug fixed in r229642. With the bug a vpsrldq was emitted instead of pslldq. 

llvm-svn: 229643
This commit is contained in:
Craig Topper 2015-02-18 07:45:43 +00:00
parent 55553f5299
commit 55ac42426e
1 changed files with 15 additions and 0 deletions
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15
llvm/test/CodeGen/X86/vector-shuffle-128-v8.ll
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@ -2178,3 +2178,18 @@ define <8 x i16> @shuffle_v8i16_fu3ucc5u(<8 x i16> %a, <8 x i16> %b) {
%shuffle = shufflevector <8 x i16> %a, <8 x i16> %b, <8 x i32> <i32 15, i32 undef, i32 3, i32 undef, i32 12, i32 12, i32 5, i32 undef>
ret <8 x i16> %shuffle
}
define <8 x i16> @shuffle_v8i16_8012345u(<8 x i16> %a) {
; SSE-LABEL: shuffle_v8i16_8012345u:
; SSE: # BB#0:
; SSE-NEXT: pslldq {{.*#+}} xmm0 = zero,zero,xmm0[0,1,2,3,4,5,6,7,8,9,10,11,12,13]
; SSE-NEXT: retq
;
; AVX-LABEL: shuffle_v8i16_8012345u:
; AVX: # BB#0:
; AVX-NEXT: vpslldq {{.*#+}} xmm0 = zero,zero,xmm0[0,1,2,3,4,5,6,7,8,9,10,11,12,13]
; AVX-NEXT: retq
%shuffle = shufflevector <8 x i16> %a, <8 x i16> zeroinitializer, <8 x i32> <i32 8, i32 0, i32 1, i32 2, i32 3, i32 4, i32 5, i32 undef>
ret <8 x i16> %shuffle
}