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3 Commits

Author SHA1 Message Date
Duncan Sands 9af6298293 Remove support for the special 'fast' value for fpmath accuracy for the moment. 
llvm-svn: 154850
 2012-04-16 19:39:33 +00:00
Duncan Sands 05f4df8d72 Make it possible to indicate relaxed floating point requirements at the IR level 
through the use of 'fpmath' metadata.  Currently this only provides a 'fpaccuracy'
value, which may be a number in ULPs or the keyword 'fast', however the intent is
that this will be extended with additional information about NaN's, infinities
etc later.  No optimizations have been hooked up to this so far.

llvm-svn: 154822
 2012-04-16 16:28:59 +00:00
Duncan Sands 62d5f6f247 Add the MDBuilder helper class for conveniently creating metadata. 
llvm-svn: 154766
 2012-04-15 18:03:49 +00:00