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4 Commits

Author SHA1 Message Date
Shuxin Yang 37a1efe1c6 rdar://12801297 
InstCombine for unsafe floating-point add/sub.

llvm-svn: 170471
 2012-12-18 23:10:12 +00:00
Shuxin Yang f8e9a5a061 rdar://12753946 
Implement rule : "x * (select cond 1.0, 0.0) -> select cond x, 0.0"

llvm-svn: 170226
 2012-12-14 18:46:06 +00:00
Shuxin Yang f265351491 fix a typo 
llvm-svn: 168909
 2012-11-29 18:09:37 +00:00
Shuxin Yang 01ab5d718b Instruction::isAssociative() returns true for fmul/fadd if they are tagged "unsafe" mode. 
Approved by: Eli and Michael.

llvm-svn: 168848
 2012-11-29 01:47:31 +00:00