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| author | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2011-07-22 00:15:00 +0000 |
|---|---|---|
| committer | Bruno Cardoso Lopes <bruno.cardoso@gmail.com> | 2011-07-22 00:15:00 +0000 |
| commit | 74dad551d839814cf8f6d8a8e81f2e365837d2b8 (patch) | |
| tree | 5444b5e5475ef884b6488d76dddb7e1225d34c50 /test/CodeGen/X86 | |
| parent | d088834fb991d96b4b34aaae7ff68dc413ecec9a (diff) | |
Add a DAGCombine for transforming 128->256 casts into a simple
vxorps + vinsertf128 pair of instructions
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@135727 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86')
| -rw-r--r-- | test/CodeGen/X86/avx-cast.ll | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/test/CodeGen/X86/avx-cast.ll b/test/CodeGen/X86/avx-cast.ll new file mode 100644 index 0000000000..bb742f8d97 --- /dev/null +++ b/test/CodeGen/X86/avx-cast.ll @@ -0,0 +1,26 @@ +; RUN: llc < %s -mtriple=x86_64-apple-darwin -mcpu=corei7-avx -mattr=+avx | FileCheck %s + +; CHECK: vxorps +; CHECK-NEXT: vinsertf128 $0 +define <8 x float> @castA(<4 x float> %m) nounwind uwtable readnone ssp { +entry: + %shuffle.i = shufflevector <4 x float> %m, <4 x float> zeroinitializer, <8 x i32> <i32 0, i32 1, i32 2, i32 3, i32 4, i32 4, i32 4, i32 4> + ret <8 x float> %shuffle.i +} + +; CHECK: vxorps +; CHECK-NEXT: vinsertf128 $0 +define <4 x double> @castB(<2 x double> %m) nounwind uwtable readnone ssp { +entry: + %shuffle.i = shufflevector <2 x double> %m, <2 x double> zeroinitializer, <4 x i32> <i32 0, i32 1, i32 2, i32 2> + ret <4 x double> %shuffle.i +} + +; CHECK: vxorps +; CHECK-NEXT: vinsertf128 $0 +define <4 x i64> @castC(<2 x i64> %m) nounwind uwtable readnone ssp { +entry: + %shuffle.i = shufflevector <2 x i64> %m, <2 x i64> zeroinitializer, <4 x i32> <i32 0, i32 1, i32 2, i32 2> + ret <4 x i64> %shuffle.i +} + |