https://gcc.gnu.org/bugzilla/show_bug.cgi?id=120604
David Binderman <dcb314 at hotmail dot com> changed:
What |Removed |Added
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CC| |kyrylo.tkachov at arm dot com
--- Comment #17 from David Binderman <dcb314 at hotmail dot com> ---
(In reply to Uroš Bizjak from comment #16)
> That's because you missed "The check in this additional patch is copied from
> noce_try_cmove." part in Comment #13.
The function appears to be in file gcc/ifcvt.c.
git blame says:
d27555bfeeb3 gcc/ifcvt.c (Kyrylo Tkachov 2015-08-13 09:11:13
+0000 1928) != ((ifalse < 0) != (itrue < 0) ? ifalse < 0 : ifalse <
itrue))
I got as far as
(cf < 0) != (ct < 0)
perhaps means cf and ct have different signs. Although there might be something
important about a zero value. Hard to say without explanatory comment.
Adding original author for comment.
