Allow v16i16 and v32i8 shuffles to be rewritten as narrower shuffles.

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

diff --git a/test/CodeGen/X86/avx-shuffle.ll b/test/CodeGen/X86/avx-shuffle.ll
index 16c447be17278c39a72b89b094e7bfaea900d2e3..e341aec94c1eaf964f357835cb25929c75e39165 100644 (file)
--- a/test/CodeGen/X86/avx-shuffle.ll
+++ b/test/CodeGen/X86/avx-shuffle.ll
@@ -202,3 +202,11 @@ define <4 x i64> @blend4(<4 x i64> %a, <4 x i64> %b) nounwind alwaysinline {
   %t = shufflevector <4 x i64> %a, <4 x i64> %b, <4 x i32> <i32 0, i32 1, i32 2, i32 7>
   ret <4 x i64> %t
 }
+
+; CHECK: narrow
+; CHECK: vpermilps
+; CHECK: ret
+define <16 x i16> @narrow(<16 x i16> %a) nounwind alwaysinline {
+  %t = shufflevector <16 x i16> %a, <16 x i16> undef, <16 x i32> <i32 2, i32 3, i32 undef, i32 1, i32 6, i32 7, i32 4, i32 5, i32 10, i32 11, i32 8, i32 undef, i32 14, i32 15, i32 undef, i32 undef>
+  ret <16 x i16> %t
+}