[Bug c/27535] New: ICE, Regression from gcc-4.1.0

["kminola at eng dot umd dot edu" <gcc-bugzilla at gcc dot gnu dot org>]

/* 

ICE using gcc-4.2-20060506 on x86_64-unknown-linux-gnu
Regression from gcc-4.1.0

Source cut down from gmp-4.2.1/tests/refmpf.c

% gcc-4.2-20060506 -O3 -c foo.c
foo.c: In function âfooâ:
foo.c:27: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
%
% gcc-4.2-20060506 -O2 -c foo.c
%
% gcc-4.2-20060506 -v
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: /home/kate/test/gcc-4.2-20060506/configure 
--enable-languages=c --prefix=/home/kate/test/bin/x86_64-Linux
Thread model: posix
gcc version 4.2.0 20060506 (experimental)
%
%
% gcc -v
Using built-in specs.
Target: x86_64-unknown-linux-gnu
Configured with: /usr/local/gcc-4.1.0/src/gcc-4.1.0/configure
--enable-languages=c,c++
--prefix=/usr/local/gcc-4.1.0/x86_64-Linux-g++
Thread model: posix
gcc version 4.1.0
%
% gcc -O3 -c foo.c
% 
*/

#include <stdlib.h>

typedef struct
{
  int a;                        
} strt;

typedef strt *ptr;

void
foo (ptr w, int u, int v)
{
  int b;

  if (u == 0)
    {
      b = v > 0;
      goto done;
    }
  if (v == 0)
    {
      b = u < 0;
    }

done:
  w->a = b == 0 ? 1 : -1;
}


-- 
           Summary: ICE, Regression from gcc-4.1.0
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kminola at eng dot umd dot edu
 GCC build triplet: x86_64-unknown-linux-gnu
  GCC host triplet: x86_64-unknown-linux-gnu
GCC target triplet: x86_64-unknown-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27535