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| author | Evan Cheng <evan.cheng@apple.com> | 2008-06-16 20:29:38 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-06-16 20:29:38 +0000 |
| commit | 6bd9567a6a1ba62118cdd258ddc52ea8f82ff511 (patch) | |
| tree | efa5e78092725455c72491bb166a2ad3aa9648a0 /test/CodeGen/X86/commute-intrinsic.ll | |
| parent | 35b9a7790e904abce4e6dac3f1ed89696522f19a (diff) | |
| download | external_llvm-6bd9567a6a1ba62118cdd258ddc52ea8f82ff511.zip external_llvm-6bd9567a6a1ba62118cdd258ddc52ea8f82ff511.tar.gz external_llvm-6bd9567a6a1ba62118cdd258ddc52ea8f82ff511.tar.bz2 | |
- Add "Commutative" property to intrinsics. This allows tblgen to generate the commuted variants for dagisel matching code.
- Mark lots of X86 intrinsics as "Commutative" to allow load folding.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@52353 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/commute-intrinsic.ll')
| -rw-r--r-- | test/CodeGen/X86/commute-intrinsic.ll | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/test/CodeGen/X86/commute-intrinsic.ll b/test/CodeGen/X86/commute-intrinsic.ll new file mode 100644 index 0000000..12c0e03 --- /dev/null +++ b/test/CodeGen/X86/commute-intrinsic.ll @@ -0,0 +1,15 @@ +; RUN: llvm-as < %s | llc -mtriple=i386-apple-darwin -mattr=+sse2 -relocation-model=static | not grep movaps + +@a = external global <2 x i64> ; <<2 x i64>*> [#uses=1] + +define <2 x i64> @madd(<2 x i64> %b) nounwind { +entry: + %tmp2 = load <2 x i64>* @a, align 16 ; <<2 x i64>> [#uses=1] + %tmp6 = bitcast <2 x i64> %b to <8 x i16> ; <<8 x i16>> [#uses=1] + %tmp9 = bitcast <2 x i64> %tmp2 to <8 x i16> ; <<8 x i16>> [#uses=1] + %tmp11 = tail call <4 x i32> @llvm.x86.sse2.pmadd.wd( <8 x i16> %tmp9, <8 x i16> %tmp6 ) nounwind readnone ; <<4 x i32>> [#uses=1] + %tmp14 = bitcast <4 x i32> %tmp11 to <2 x i64> ; <<2 x i64>> [#uses=1] + ret <2 x i64> %tmp14 +} + +declare <4 x i32> @llvm.x86.sse2.pmadd.wd(<8 x i16>, <8 x i16>) nounwind readnone |