[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%st(1)
ret

[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 ubizjak at gmail dot com changed:



   What|Removed |Added



 Status|UNCONFIRMED |RESOLVED

 Resolution||DUPLICATE



--- Comment #1 from Uros Bizjak ubizjak at gmail dot com 2013-01-13 11:28:23 
UTC ---

Duplicate of PR15492.



*** This bug has been marked as a duplicate of bug 15492 ***