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3 Commits

Author SHA1 Message Date
Matt Arsenault fabf545299 R600/SI: Move all fabs / fneg handling to patterns 
llvm-svn: 215749
 2014-08-15 18:42:22 +00:00
Matt Arsenault 4de324442b R600: Cleanup fneg tests 
llvm-svn: 214612
 2014-08-02 02:26:51 +00:00
Michel Danzer 624b02aa67 R600/SI: Fix fneg for 0.0 
V_ADD_F32 with source modifier does not produce -0.0 for this. Just
manipulate the sign bit directly instead.

Also add a pattern for (fneg (fabs ...)).

Fixes a bunch of bit encoding piglit tests with radeonsi.

Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
llvm-svn: 200743
 2014-02-04 07:12:38 +00:00