[Bug rtl-optimization/55952] x86 FPU, unnecessary fxch instruction

2017-04-15 Thread ubizjak at gmail dot com
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55952 --- Comment #2 from Uroš Bizjak --- Latest trunk gcc generates: flds4(%esp) fldz fucomip %st(1), %st fstp%st(0) fld1 fchs fld1 fcmovnbe%st(1), %st fstp%s

[Bug rtl-optimization/55952] x86 FPU, unnecessary fxch instruction

2013-01-13 Thread ubizjak at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55952 Uros Bizjak changed: What|Removed |Added Status|UNCONFIRMED |RESOLVED Resolution|