Add test case for r84279

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84280 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/CodeGen/X86/widen_extract-1.ll b/test/CodeGen/X86/widen_extract-1.ll
new file mode 100644 (file)
index 0000000..308e6b8
--- /dev/null
+++ b/test/CodeGen/X86/widen_extract-1.ll
@@ -0,0 +1,12 @@
+; RUN: llc < %s -march=x86-64 -mattr=+sse42 -disable-mmx | FileCheck %s
+; widen extract subvector
+
+define void @convert(<2 x double>* %dst.addr, <3 x double> %src)  {
+entry:
+; CHECK: convert:
+; CHECK: unpcklpd {{%xmm[0-7]}}, {{%xmm[0-7]}}
+; CHECK-NEXT: movapd
+  %val = shufflevector <3 x double> %src, <3 x double> undef, <2 x i32> < i32 0, i32 1>
+  store <2 x double> %val, <2 x double>* %dst.addr
+  ret void
+}