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| author | Evan Cheng <evan.cheng@apple.com> | 2008-05-23 00:37:07 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2008-05-23 00:37:07 +0000 |
| commit | b1938263c7d0fcf8362717625a1a5c460cbf9528 (patch) | |
| tree | f72372f5829de88762ec756b7ff38b2720990cba /test/CodeGen/X86/2008-05-22-FoldUnalignedLoad.ll | |
| parent | e4569943d936d73dec6f36f545e9902095bd3fd8 (diff) | |
| download | external_llvm-b1938263c7d0fcf8362717625a1a5c460cbf9528.zip external_llvm-b1938263c7d0fcf8362717625a1a5c460cbf9528.tar.gz external_llvm-b1938263c7d0fcf8362717625a1a5c460cbf9528.tar.bz2 | |
Bug: rcpps can only folds a load if the address is 16-byte aligned. Fixed many 'ps' load folding patterns in X86InstrSSE.td which are missing the proper alignment checks.
Also fixed some 80 col. violations.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51462 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/2008-05-22-FoldUnalignedLoad.ll')
| -rw-r--r-- | test/CodeGen/X86/2008-05-22-FoldUnalignedLoad.ll | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/test/CodeGen/X86/2008-05-22-FoldUnalignedLoad.ll b/test/CodeGen/X86/2008-05-22-FoldUnalignedLoad.ll new file mode 100644 index 0000000..c9e30d8 --- /dev/null +++ b/test/CodeGen/X86/2008-05-22-FoldUnalignedLoad.ll @@ -0,0 +1,11 @@ +; RUN: llvm-as < %s | llc -march=x86 -mattr=+sse2 | grep movups | count 2 + +define void @a(<4 x float>* %x) nounwind { +entry: + %tmp2 = load <4 x float>* %x, align 1 + %inv = call <4 x float> @llvm.x86.sse.rcp.ps(<4 x float> %tmp2) + store <4 x float> %inv, <4 x float>* %x, align 1 + ret void +} + +declare <4 x float> @llvm.x86.sse.rcp.ps(<4 x float>) |