[Bug c/52912] New: ICE: verify_ssa failed

[regehr at cs dot utah.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52912

             Bug #: 52912
           Summary: ICE: verify_ssa failed
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassig...@gcc.gnu.org
        ReportedBy: reg...@cs.utah.edu


[regehr@dyson r14]$ current-gcc -Os small.c
small.c: In function 'fn2':
small.c:12:1: error: AUX pointer initialized for edge 3->4
small.c:12:1: internal compiler error: verify_ssa failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


[regehr@dyson r14]$ cat small.c
int a, b, c;
int
fn1 (p1)
{
lbl_549:
    if (p1)
        goto lbl_549;
    return 0;
}

void
fn2 ()
{
    b = (c && a) > fn1 (c) >= c;
}

int
main ()
{
    return 0;
}


[regehr@dyson r14]$ current-gcc -v
Using built-in specs.
COLLECT_GCC=current-gcc
COLLECT_LTO_WRAPPER=/uusoc/exports/scratch/regehr/z/compiler-install/gcc-r186233-install/bin/../libexec/gcc/x86_64-unknown-linux-gnu/4.8.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../configure --with-libelf=/usr/local --enable-lto
--prefix=/home/regehr/z/compiler-install/gcc-r186233-install
--program-prefix=r186233- --enable-languages=c,c++
Thread model: posix
gcc version 4.8.0 20120409 (experimental) (GCC)