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5 Commits

Author SHA1 Message Date
Benjamin Kramer
ca7001eedb This test depends on cmov being available. 
llvm-svn: 138954
 2011-09-01 18:40:01 +00:00
Andrew Trick
e5d7c0d111 PreRA scheduler should avoid cloning compares. 
Added canClobberReachingPhysRegUse() to handle a particular pattern in
which a two-address instruction could be forced to interfere with
EFLAGS, causing a compare to be unnecessarilly cloned.
Fixes rdar://problem/5875261

llvm-svn: 138924
 2011-09-01 00:54:31 +00:00
Dan Gohman
df2896d609 Eliminate more uses of llvm-as and llvm-dis. 
llvm-svn: 81290
 2009-09-08 23:54:48 +00:00
Dan Gohman
58ad056286 Add CMP32mr and friends to the load-unfolding table. Among 
other things, this allows the scheduler to unfold a load operand
in the 2008-01-08-SchedulerCrash.ll testcase, so it now successfully
clones the comparison to avoid a pushf+popf.

llvm-svn: 48777
 2008-03-25 16:53:19 +00:00
Evan Cheng
ba0214a6cb Special copy SUnit's do not have SDNode's. 
llvm-svn: 45787
 2008-01-09 23:01:55 +00:00