Add 256-bit isel for movsldup/movshdup

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136051 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 34 insertions, 0 deletions

diff --git a/test/CodeGen/X86/avx-256-movdup.ll b/test/CodeGen/X86/avx-256-movdup.ll
new file mode 100644
index 0000000000..42d84def98
--- /dev/null
+++ b/test/CodeGen/X86/avx-256-movdup.ll
@@ -0,0 +1,34 @@
+; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7-avx -mattr=+avx | FileCheck %s
+
+; CHECK: vmovsldup
+define <8 x float> @movdupA(<8 x float> %src) nounwind uwtable readnone ssp {
+entry:
+  %shuffle.i = shufflevector <8 x float> %src, <8 x float> undef, <8 x i32> <i32 0, i32 0, i32 2, i32 2, i32 4, i32 4, i32 6, i32 6>
+  ret <8 x float> %shuffle.i
+}
+
+; CHECK: vmovshdup
+define <8 x float> @movdupB(<8 x float> %src) nounwind uwtable readnone ssp {
+entry:
+  %shuffle.i = shufflevector <8 x float> %src, <8 x float> undef, <8 x i32> <i32 1, i32 1, i32 3, i32 3, i32 5, i32 5, i32 7, i32 7>
+  ret <8 x float> %shuffle.i
+}
+
+; CHECK: vmovsldup
+define <4 x i64> @movdupC(<4 x i64> %src) nounwind uwtable readnone ssp {
+entry:
+  %0 = bitcast <4 x i64> %src to <8 x float>
+  %shuffle.i = shufflevector <8 x float> %0, <8 x float> undef, <8 x i32> <i32 0, i32 0, i32 2, i32 2, i32 4, i32 4, i32 6, i32 6>
+  %1 = bitcast <8 x float> %shuffle.i to <4 x i64>
+  ret <4 x i64> %1
+}
+
+; CHECK: vmovshdup
+define <4 x i64> @movdupD(<4 x i64> %src) nounwind uwtable readnone ssp {
+entry:
+  %0 = bitcast <4 x i64> %src to <8 x float>
+  %shuffle.i = shufflevector <8 x float> %0, <8 x float> undef, <8 x i32> <i32 1, i32 1, i32 3, i32 3, i32 5, i32 5, i32 7, i32 7>
+  %1 = bitcast <8 x float> %shuffle.i to <4 x i64>
+  ret <4 x i64> %1
+}
+