[llvm] r279521 - [X86][AVX] Updated fptosi_2f64_to_4i32 test to show missed opportunity to implicit zero the upper elements

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Tue Aug 23 10:10:39 2016
New Revision: 279521

URL: http://llvm.org/viewvc/llvm-project?rev=279521&view=rev
Log:
[X86][AVX] Updated fptosi_2f64_to_4i32 test to show missed opportunity to implicit zero the upper elements

Modified:
    llvm/trunk/test/CodeGen/X86/vec_fp_to_int.ll

Modified: llvm/trunk/test/CodeGen/X86/vec_fp_to_int.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/vec_fp_to_int.ll?rev=279521&r1=279520&r2=279521&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/vec_fp_to_int.ll (original)
+++ llvm/trunk/test/CodeGen/X86/vec_fp_to_int.ll Tue Aug 23 10:10:39 2016
@@ -62,7 +62,8 @@ define <4 x i32> @fptosi_2f64_to_4i32(<2
 ; 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
 ; 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
 ; 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
 }