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4 Commits

Author SHA1 Message Date
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 f036ca466e CostModel: add another known vector trunc optimization. 
llvm-svn: 167488
 2012-11-06 21:17:17 +00:00
Nadav Rotem 0914f0b262 Cost Model: add tables for some avx type-conversion hacks. 
llvm-svn: 167480
 2012-11-06 19:33:53 +00:00
Nadav Rotem ae79765676 Code Model: Improve the accuracy of the zext/sext/trunc vector cost estimation. 
llvm-svn: 167412
 2012-11-05 22:20:53 +00:00