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| author | Mon P Wang <wangmp@apple.com> | 2009-01-17 00:07:25 +0000 |
|---|---|---|
| committer | Mon P Wang <wangmp@apple.com> | 2009-01-17 00:07:25 +0000 |
| commit | ca6d6dea0bfb6ff58934f9425072ec371271cf48 (patch) | |
| tree | d46a5d50ce5afe796bcb0f6a6dfe77161fafcc3b /llvm/test/CodeGen/X86/scalar-extract.ll | |
| parent | 94234ea63e2b42197fc3caa7e9fc58b92a674829 (diff) | |
| download | bcm5719-llvm-ca6d6dea0bfb6ff58934f9425072ec371271cf48.tar.gz bcm5719-llvm-ca6d6dea0bfb6ff58934f9425072ec371271cf48.zip | |
Simplify extract element of a scalar to vector.
llvm-svn: 62383
Diffstat (limited to 'llvm/test/CodeGen/X86/scalar-extract.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/scalar-extract.ll | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/scalar-extract.ll b/llvm/test/CodeGen/X86/scalar-extract.ll new file mode 100644 index 00000000000..172c424a782 --- /dev/null +++ b/llvm/test/CodeGen/X86/scalar-extract.ll @@ -0,0 +1,13 @@ +; RUN: llvm-as < %s | llc -march=x86 -mattr=+mmx -o %t -f +; RUN: not grep movq %t + +; Check that widening doesn't introduce a mmx register in this case when +; a simple load/store would suffice. + +define void @foo(<2 x i16>* %A, <2 x i16>* %B) { +entry: + %tmp1 = load <2 x i16>* %A ; <<2 x i16>> [#uses=1] + store <2 x i16> %tmp1, <2 x i16>* %B + ret void +} + |
