Add a dag combine to xform 256-bit shuffles into simple vector

[oota-llvm.git] / test / CodeGen / X86 / avx-vinsertf128.ll

diff --git a/test/CodeGen/X86/avx-vinsertf128.ll b/test/CodeGen/X86/avx-vinsertf128.ll
new file mode 100644 (file)
index 0000000..b54b57b
--- /dev/null
+++ b/test/CodeGen/X86/avx-vinsertf128.ll
@@ -0,0 +1,18 @@
+; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7-avx -mattr=+avx | FileCheck %s
+
+; CHECK-NOT: vunpck
+; CHECK: vinsertf128 $1
+define <8 x float> @A(<8 x float> %a) nounwind uwtable readnone ssp {
+entry:
+  %shuffle = shufflevector <8 x float> %a, <8 x float> undef, <8 x i32> <i32 8, i32 8, i32 8, i32 8, i32 0, i32 1, i32 2, i32 3>
+  ret <8 x float> %shuffle
+}
+
+; CHECK-NOT: vunpck
+; CHECK: vinsertf128 $1
+define <4 x double> @B(<4 x double> %a) nounwind uwtable readnone ssp {
+entry:
+  %shuffle = shufflevector <4 x double> %a, <4 x double> undef, <4 x i32> <i32 4, i32 4, i32 0, i32 1>
+  ret <4 x double> %shuffle
+}
+