[Bug target/19506] New: PovRay produces wrong pictures with -mfpmath=sse -ffast-math.
uros at kss-loka dot si
gcc-bugzilla@gcc.gnu.org
Tue Jan 18 15:44:00 GMT 2005
I think it is a good idea to open a PR for this.
There is the problem description:
http://gcc.gnu.org/ml/gcc-patches/2005-01/msg00797.html
A kind of "fix" that shows that problem is related to FP compares:
http://gcc.gnu.org/ml/gcc-patches/2005-01/msg01027.html
A comment from Richard Henderson:
http://gcc.gnu.org/ml/gcc-patches/2005-01/msg01087.html
The proposed NaN trap didn't trigger, so there is no NaNs compared:
http://gcc.gnu.org/ml/gcc-patches/2005-01/msg01096.html
This PR is not related to similar PR19496.
--
Summary: PovRay produces wrong pictures with -mfpmath=sse -ffast-
math.
Product: gcc
Version: 4.0.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: critical
Priority: P2
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: uros at kss-loka dot si
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19506
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