ZERO_EXTEND operation is optimized for AVX.

  v8i16 -> v8i32, v4i32 -> v4i64 - used vpunpck* instructions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148803 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 17 insertions, 0 deletions

diff --git a/test/CodeGen/X86/avx-zext.ll b/test/CodeGen/X86/avx-zext.ll
new file mode 100755
index 0000000000..795a7b3dd4
--- /dev/null
+++ b/test/CodeGen/X86/avx-zext.ll
@@ -0,0 +1,17 @@
+; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7-avx -mattr=+avx | FileCheck %s
+
+define <8 x i32> @zext_8i16_to_8i32(<8 x i16> %A) nounwind uwtable readnone ssp {
+;CHECK: zext_8i16_to_8i32
+;CHECK: vpunpckhwd
+
+  %B = zext <8 x i16> %A to <8 x i32>
+  ret <8 x i32>%B
+}
+
+define <4 x i64> @zext_4i32_to_4i64(<4 x i32> %A) nounwind uwtable readnone ssp {
+;CHECK: zext_4i32_to_4i64
+;CHECK: vpunpckhdq
+
+  %B = zext <4 x i32> %A to <4 x i64>
+  ret <4 x i64>%B
+}