[Bug rtl-optimization/33791] [4.1/4.2/4.3 Regression] x86 out of registers ICE with -fschedule-insns -march=core2

[ebotcazou at gcc dot gnu dot org]

------- Comment #3 from ebotcazou at gcc dot gnu dot org  2007-10-16 09:18 -------
This is a known problem, -fschedule-insns should be avoided on x86.

config/i386/i386.c:2884

void
optimization_options (int level, int size ATTRIBUTE_UNUSED)
{
  /* For -O2 and beyond, turn off -fschedule-insns by default.  It tends to
     make the problem with not enough registers even worse.  */
#ifdef INSN_SCHEDULING
  if (level > 1)
    flag_schedule_insns = 0;
#endif


-- 

ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ebotcazou at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33791