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| author | Dan Gohman <gohman@apple.com> | 2008-07-31 00:50:31 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2008-07-31 00:50:31 +0000 |
| commit | 345d63ccf2609b2b61d930270f5c33fc9bd06201 (patch) | |
| tree | 1d586c816773d926c92dd0f1da58e8de667826ad /llvm/test/CodeGen/X86/sext-trunc.ll | |
| parent | b39b1cd7c39068aaa1f29c46c4ea856c3e7b30a0 (diff) | |
| download | bcm5719-llvm-345d63ccf2609b2b61d930270f5c33fc9bd06201.tar.gz bcm5719-llvm-345d63ccf2609b2b61d930270f5c33fc9bd06201.zip | |
Improve dagcombining for sext-loads and sext-in-reg nodes.
llvm-svn: 54239
Diffstat (limited to 'llvm/test/CodeGen/X86/sext-trunc.ll')
| -rw-r--r-- | llvm/test/CodeGen/X86/sext-trunc.ll | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/llvm/test/CodeGen/X86/sext-trunc.ll b/llvm/test/CodeGen/X86/sext-trunc.ll new file mode 100644 index 00000000000..97b46668270 --- /dev/null +++ b/llvm/test/CodeGen/X86/sext-trunc.ll @@ -0,0 +1,9 @@ +; RUN: llvm-as < %s | llc -march=x86 > %t +; RUN: grep movsbl %t +; RUN: not grep movz %t +; RUN: not grep and %t + +define i8 @foo(i16 signext %x) signext nounwind { + %retval56 = trunc i16 %x to i8 + ret i8 %retval56 +} |
