[llvm] r310249 - [X86][AVX] Added test for broadcast shuffle with undefs (PR34041)

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Mon Aug  7 05:24:33 2017
New Revision: 310249

URL: http://llvm.org/viewvc/llvm-project?rev=310249&view=rev
Log:
[X86][AVX] Added test for broadcast shuffle with undefs (PR34041)

Modified:
    llvm/trunk/test/CodeGen/X86/avx-vbroadcast.ll

Modified: llvm/trunk/test/CodeGen/X86/avx-vbroadcast.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/avx-vbroadcast.ll?rev=310249&r1=310248&r2=310249&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/avx-vbroadcast.ll (original)
+++ llvm/trunk/test/CodeGen/X86/avx-vbroadcast.ll Mon Aug  7 05:24:33 2017
@@ -831,6 +831,26 @@ define <4 x double> @splat_concat4(doubl
   ret <4 x double> %6
 }
 
+; PR34041
+define <4 x double> @broadcast_shuffle_1000(double* %p) {
+; X32-LABEL: broadcast_shuffle_1000:
+; X32:       ## BB#0:
+; X32-NEXT:    movl {{[0-9]+}}(%esp), %eax
+; X32-NEXT:    vmovddup {{.*#+}} xmm0 = mem[0,0]
+; X32-NEXT:    vinsertf128 $1, %xmm0, %ymm0, %ymm0
+; X32-NEXT:    retl
+;
+; X64-LABEL: broadcast_shuffle_1000:
+; X64:       ## BB#0:
+; X64-NEXT:    vmovddup {{.*#+}} xmm0 = mem[0,0]
+; X64-NEXT:    vinsertf128 $1, %xmm0, %ymm0, %ymm0
+; X64-NEXT:    retq
+  %1 = load double, double* %p
+  %2 = insertelement <2 x double> undef, double %1, i32 0
+  %3 = shufflevector <2 x double> %2, <2 x double> undef, <4 x i32> <i32 1, i32 0, i32 0, i32 0>
+  ret <4 x double> %3
+}
+
 ;
 ; When VBROADCAST replaces an existing load, ensure it still respects lifetime dependencies.
 ;