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Author SHA1 Message Date
Bob Wilson ba8ac74fd9 Check for comparisons of +/- zero when optimizing less-than-or-equal and 
greater-than-or-equal SELECT_CCs to NEON vmin/vmax instructions.  This is
only allowed when UnsafeFPMath is set or when at least one of the operands
is known to be nonzero.

llvm-svn: 97065
 2010-02-24 22:15:53 +00:00
Bob Wilson c6c13a3515 Use NEON vmin/vmax instructions for floating-point selects. 
Radar 7461718.

llvm-svn: 96572
 2010-02-18 06:05:53 +00:00