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Subject: [Bug middle-end/20623] ICE: fold check: original tree changed by fold with --enable-checking=fold
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From: "ghazi at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>
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------- Comment #37 from ghazi at gcc dot gnu dot org  2007-06-30 02:22 -------
Run this in a.17.1.i targetted to sparc-sun-solaris2.10 with
--enable-checking=yes,fold and:

cc1 -fpreprocessed a.17.1.i -quiet -dumpbase a.17.1.c -mcpu=v9 -auxbase-strip
a.17.1.s -version -fopenmp -fno-show-column -o a.17.1.s

That should show the error.

# 1
"/tmp/kg/basel/egcc-SVN20070627/gcc/testsuite/gcc.dg/gomp/appendix-a/a.17.1.c"
# 1 "<built-in>"
# 1 "<command-line>"
# 1
"/tmp/kg/basel/egcc-SVN20070627/gcc/testsuite/gcc.dg/gomp/appendix-a/a.17.1.c"


void
a17_1_wrong ()
{
  union
  {
    int n;
    float x;
  } u;
#pragma omp parallel
  {
#pragma omp atomic
    u.n++;
#pragma omp atomic
    u.x += 1.0;


  }
}


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20623