http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51938
Marc Glisse <glisse at gcc dot gnu.org> changed:
What |Removed |Added
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CC| |glisse at gcc dot gnu.org
--- Comment #3 from Marc Glisse <glisse at gcc dot gnu.org> 2012-06-06 21:22:59
UTC ---
Note that if I replace:
if(x<0) return NEG;
with:
if(!(x>=0)) return NEG;
then ifcombine recognizes the pattern and optimizes it (the generated code is
slightly different since that changes the behavior for NaN).
No time to investigate right now, but I wanted to add this note to the PR.
