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Author SHA1 Message Date
Chris Lattner 51924e517b Implement support for -fwrapv, rdar://7221421 
As part of this, pull together trapv handling into the same enum.

This also add support for NSW multiplies.

This also makes PCH disagreement on overflow behavior silent, since it
really doesn't matter except for warnings and codegen (no macros get 
defined etc).

llvm-svn: 106956
 2010-06-26 21:25:03 +00:00
Charles Davis fea4845609 Allow redefinitions of extern inline functions in GNU89 mode, just as GCC 
does. Fixes PR5253.

llvm-svn: 96553
 2010-02-18 02:00:42 +00:00