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[X86][AVX] Updated fptosi_2f64_to_4i32 test to show missed opportunity to implicit zero the upper elements

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llvm-svn: 279521
This commit is contained in:
Simon Pilgrim 2016-08-23 15:10:39 +00:00
parent 5c1801cc89
commit 70a88afb5f
1 changed files with 6 additions and 2 deletions
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8
test/CodeGen/X86/vec_fp_to_int.ll
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@ -62,7 +62,8 @@ define <4 x i32> @fptosi_2f64_to_4i32(<2 x double> %a) {
; SSE-NEXT: cvttsd2si %xmm0, %rax
; SSE-NEXT: movd %rax, %xmm0
; SSE-NEXT: punpcklqdq {{.*#+}} xmm1 = xmm1[0],xmm0[0]
; SSE-NEXT: pshufd {{.*#+}} xmm0 = xmm1[0,2,2,3]
; SSE-NEXT: pshufd {{.*#+}} xmm0 = xmm1[0,1,0,2]
; SSE-NEXT: psrldq {{.*#+}} xmm0 = xmm0[8,9,10,11,12,13,14,15],zero,zero,zero,zero,zero,zero,zero,zero
; SSE-NEXT: retq
;
; AVX-LABEL: fptosi_2f64_to_4i32:
@ -74,6 +75,7 @@ define <4 x i32> @fptosi_2f64_to_4i32(<2 x double> %a) {
; AVX-NEXT: vmovq %rax, %xmm0
; AVX-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm1[0],xmm0[0]
; AVX-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
; AVX-NEXT: vmovq {{.*#+}} xmm0 = xmm0[0],zero
; AVX-NEXT: retq
;
; AVX512F-LABEL: fptosi_2f64_to_4i32:
@ -85,15 +87,17 @@ define <4 x i32> @fptosi_2f64_to_4i32(<2 x double> %a) {
; AVX512F-NEXT: vmovq %rax, %xmm0
; AVX512F-NEXT: vpunpcklqdq {{.*#+}} xmm0 = xmm1[0],xmm0[0]
; AVX512F-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
; AVX512F-NEXT: vmovq {{.*#+}} xmm0 = xmm0[0],zero
; AVX512F-NEXT: retq
;
; AVX512DQ-LABEL: fptosi_2f64_to_4i32:
; AVX512DQ: # BB#0:
; AVX512DQ-NEXT: vcvttpd2qq %xmm0, %xmm0
; AVX512DQ-NEXT: vpshufd {{.*#+}} xmm0 = xmm0[0,2,2,3]
; AVX512DQ-NEXT: vmovq {{.*#+}} xmm0 = xmm0[0],zero
; AVX512DQ-NEXT: retq
%cvt = fptosi <2 x double> %a to <2 x i32>
%ext = shufflevector <2 x i32> %cvt, <2 x i32> undef, <4 x i32> <i32 0, i32 1, i32 undef, i32 undef>
%ext = shufflevector <2 x i32> %cvt, <2 x i32> zeroinitializer, <4 x i32> <i32 0, i32 1, i32 2, i32 3>
ret <4 x i32> %ext
}