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Commit Graph

3 Commits

Author SHA1 Message Date
NAKAMURA Takumi
920ac67036 Relax expressions and add explicit triplets -linux and -win32.
llvm-svn: 126200
2011-02-22 07:19:46 +00:00
Benjamin Kramer
869dc645f1 Fix an off-by-one error in ctpop combining.
llvm-svn: 123664
2011-01-17 18:00:28 +00:00
Benjamin Kramer
e9488ed8eb Add a DAGCombine to turn (ctpop x) u< 2 into (x & x-1) == 0.
This shaves off 4 popcounts from the hacked 186.crafty source.

This is enabled even when a native popcount instruction is available. The
combined code is one operation longer but it should be faster nevertheless.

llvm-svn: 123621
2011-01-17 12:04:57 +00:00