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| author | Paul Redmond <paul.redmond@intel.com> | 2012-12-19 19:47:13 +0000 |
|---|---|---|
| committer | Paul Redmond <paul.redmond@intel.com> | 2012-12-19 19:47:13 +0000 |
| commit | 5917f4c71597f9666c4e75decc1b5240f05130b5 (patch) | |
| tree | 0f201dd38bd74a6d4caa25baf98458bc51f565f9 /llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp | |
| parent | 8013df71c757afeaf996244bb050e09c0257189b (diff) | |
| download | bcm5719-llvm-5917f4c71597f9666c4e75decc1b5240f05130b5.tar.gz bcm5719-llvm-5917f4c71597f9666c4e75decc1b5240f05130b5.zip | |
Transform (x&C)>V into (x&C)!=0 where possible
When the least bit of C is greater than V, (x&C) must be greater than V
if it is not zero, so the comparison can be simplified.
Although this was suggested in Target/X86/README.txt, it benefits any
architecture with a directly testable form of AND.
Patch by Kevin Schoedel
llvm-svn: 170576
Diffstat (limited to 'llvm/lib/Target/X86/Disassembler/X86Disassembler.cpp')
0 files changed, 0 insertions, 0 deletions
