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| author | Evan Cheng <evan.cheng@apple.com> | 2009-05-29 01:44:43 +0000 |
|---|---|---|
| committer | Evan Cheng <evan.cheng@apple.com> | 2009-05-29 01:44:43 +0000 |
| commit | cb219f0ef632ce74e613164ff65836c4ee7ef285 (patch) | |
| tree | 4f77b4ef86f0b8fe32dd548595c055954c777cf6 /test/CodeGen/X86/h-registers-3.ll | |
| parent | d3c76bb6fc3c066286850e91b8bf03484ea2a56e (diff) | |
| download | external_llvm-cb219f0ef632ce74e613164ff65836c4ee7ef285.zip external_llvm-cb219f0ef632ce74e613164ff65836c4ee7ef285.tar.gz external_llvm-cb219f0ef632ce74e613164ff65836c4ee7ef285.tar.bz2 | |
More h-registers tricks: folding zext nodes.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@72558 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen/X86/h-registers-3.ll')
| -rw-r--r-- | test/CodeGen/X86/h-registers-3.ll | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/test/CodeGen/X86/h-registers-3.ll b/test/CodeGen/X86/h-registers-3.ll new file mode 100644 index 0000000..d353a22 --- /dev/null +++ b/test/CodeGen/X86/h-registers-3.ll @@ -0,0 +1,12 @@ +; RUN: llvm-as < %s | llc -march=x86 | grep mov | count 1 +; RUN: llvm-as < %s | llc -march=x86-64 | grep mov | count 1 + +define zeroext i8 @foo() nounwind ssp { +entry: + %0 = tail call zeroext i16 (...)* @bar() nounwind + %1 = lshr i16 %0, 8 + %2 = trunc i16 %1 to i8 + ret i8 %2 +} + +declare zeroext i16 @bar(...) |