This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug target/14330] using -O3 causes a core whereas -O2 and under work
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 17 Dec 2005 00:50:30 -0000
- Subject: [Bug target/14330] using -O3 causes a core whereas -O2 and under work
- References: <bug-14330-1422@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #6 from pinskia at gcc dot gnu dot org 2005-12-17 00:50 -------
Yes this is case which looks like
unsigned short cw;
__asm__ __volatile__("fstcw %0" : "=m"(cw));
cw &= ~(0x01|0x04|0x08);
__asm__ __volatile__("fldcw %0" : : "m"(cw));
res = a*b;
__asm__ __volatile__("fwait" : "=m"(erl_fp_exception) : "m"(f));
----
res = a*b can be moved anywhere.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution| |INVALID
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14330