[Bug target/24284] New: [4.0 4.1 regression] ICE (Segmentation fault)

["debian-gcc at lists dot debian dot org" <gcc-bugzilla at gcc dot gnu dot org>]

[forwarded from http://bugs.debian.org/329840]

works with 3.3.6, 3.4 CVS, fails with 4.0.2, CVS HEAD 20050904

When building zinc-compiler on sparc, I'm get:
run.nw: In function 'do_run':
run.nw:212: internal compiler error: Segmentation fault

It seems the following code is what is causing it:
void do_run(void *ip)
{
    char dummy[8192];

    __asm__("" : : "g"(dummy));

    goto *ip;
}

A file with only that in will generate the ICE too.

It happens when using -O* and -g.  -O0 or no -g makes it build.

Also, making the dummy buffer smaller than 8089 fixes it.  8089
still crashes, 8088 works without problems.

Compiling the same with gcc-3.3 or 3.4 works without problems.


-- 
           Summary: [4.0 4.1 regression] ICE (Segmentation fault)
           Product: gcc
           Version: 4.0.2
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: target
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: debian-gcc at lists dot debian dot org
  GCC host triplet: sparc-linux


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24284