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5 Commits

Author SHA1 Message Date
Manman Ren 662ece49de TBAA: remove !tbaa from testing cases if not used. 
This will make it easier to turn on struct-path aware TBAA since the metadata
format will change.

llvm-svn: 180743
 2013-04-29 22:42:01 +00:00
Nadav Rotem 6d4fdd6d2c Improve the X86 cost model for loads and stores. 
llvm-svn: 170830
 2012-12-21 01:33:59 +00:00
Nadav Rotem 0a471ea66c Cost Model: change the default cost of control flow instructions (br / ret / ...) to zero. 
llvm-svn: 169423
 2012-12-05 21:21:26 +00:00
Nadav Rotem c2345cbe73 X86 CostModel: Add support for a some of the common arithmetic instructions for SSE4, AVX and AVX2. 
llvm-svn: 167347
 2012-11-03 00:39:56 +00:00
Nadav Rotem a6b91ac307 Add a cost model analysis that allows us to estimate the cost of IR-level instructions. 
llvm-svn: 167324
 2012-11-02 21:48:17 +00:00