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5 Commits

Author SHA1 Message Date
Nadav Rotem b1791a75cd ARM Cost model: Use the size of vector registers and widest vectorizable instruction to determine the max vectorization factor. 
llvm-svn: 172010
 2013-01-09 22:29:00 +00:00
Nadav Rotem 36510f7194 Teach the cost model about the optimization in r169904: Truncation of induction variables costs the same as scalar trunc. 
llvm-svn: 170051
 2012-12-13 00:21:03 +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
Nadav Rotem 7411623fd8 Implement the cost of abnormal x86 instruction lowering as a table. 
llvm-svn: 167395
 2012-11-05 19:32:46 +00:00
Nadav Rotem 6d7d39783d Fix a bug in the cost calculation of vector casts. Detect situations where bitcasts cost zero. 
llvm-svn: 167170
 2012-10-31 20:52:26 +00:00