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[x86] add partial undef 'and' test; NFC 

llvm-svn: 351840
This commit is contained in:
Sanjay Patel 2019-01-22 17:01:06 +00:00
parent 0000fdd11f
commit 58256802ce
1 changed files with 22 additions and 1 deletions
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23
llvm/test/CodeGen/X86/vector-partial-undef.ll
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@ -83,7 +83,28 @@ define <8 x i32> @sub_undef_elts(<4 x i32> %x) {
ret <8 x i32> %arbitrary_shuf
}
; Verify that different types work.
; and undef, C --> 0, so this tests that we are tracking known zero lanes.
define <4 x i64> @and_undef_elts(<2 x i64> %x) {
; SSE-LABEL: and_undef_elts:
; SSE: # %bb.0:
; SSE-NEXT: xorps %xmm0, %xmm0
; SSE-NEXT: xorps %xmm1, %xmm1
; SSE-NEXT: retq
;
; AVX-LABEL: and_undef_elts:
; AVX: # %bb.0:
; AVX-NEXT: # kill: def $xmm0 killed $xmm0 def $ymm0
; AVX-NEXT: vandps {{.*}}(%rip), %ymm0, %ymm0
; AVX-NEXT: vpermpd {{.*#+}} ymm0 = ymm0[3,0,1,2]
; AVX-NEXT: retq
%extend = shufflevector <2 x i64> %x, <2 x i64> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
%bogus_bo = and <4 x i64> %extend, <i64 undef, i64 undef, i64 42, i64 43>
%arbitrary_shuf = shufflevector <4 x i64> %bogus_bo, <4 x i64> undef, <4 x i32> <i32 3, i32 0, i32 1, i32 2>
ret <4 x i64> %arbitrary_shuf
}
; or undef, C --> -1, so this tests that we are tracking known all-ones lanes.
define <4 x i64> @or_undef_elts(<2 x i64> %x) {
; SSE-LABEL: or_undef_elts: