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| author | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-09-02 23:52:55 +0000 |
|---|---|---|
| committer | Jakob Stoklund Olesen <stoklund@2pi.dk> | 2011-09-02 23:52:55 +0000 |
| commit | 1f72dd40c7c502a02b82badce2d78ac058a7f3f3 (patch) | |
| tree | a4b376a0dda6b9203700fffe7b5b4ef91afda948 /llvm/test/CodeGen/Generic | |
| parent | f08354d1831e6b47a50150cdcfc9b8c8563b3d8d (diff) | |
| download | bcm5719-llvm-1f72dd40c7c502a02b82badce2d78ac058a7f3f3.tar.gz bcm5719-llvm-1f72dd40c7c502a02b82badce2d78ac058a7f3f3.zip | |
Pseudo CMOV instructions don't clobber EFLAGS.
The explanation about a 0 argument being materialized as xor is no
longer valid. Rematerialization will check if EFLAGS is live before
clobbering it.
The code produced by X86TargetLowering::EmitLoweredSelect does not
clobber EFLAGS.
This causes one less testb instruction to be generated in the cmov.ll
test case.
llvm-svn: 139057
Diffstat (limited to 'llvm/test/CodeGen/Generic')
0 files changed, 0 insertions, 0 deletions
