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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 | 6da2e22dffe9dd0255e10a8934f2879eb7e87868 (patch) | |
| tree | 7390c767149a6d4c64394a7894dcc83910d68be4 /tools | |
| parent | 433cb080bac56b4fac56f7625e07e17b4824ce8a (diff) | |
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
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170576 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions