[Bug tree-optimization/31866] New: [4.3 Regression] ICE with tree check error: expected ssa_name, have var_decl in create_outofssa_var_map

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

With -O1, the following testcase

int
foo (void)
{
  return ({
      unsigned int resultvar = ({
          long int arg = (long int) 0;
          register long int reg asm ("eax") = arg;
          asm volatile ("nop"
                        : "=a" (resultvar)
                        : "0" (reg)
                        :"memory");
          (int) resultvar;});
      (int) resultvar;});
}

fails with an ICE:

foo.c: In function 'foo':
foo.c:3: internal compiler error: tree check: expected ssa_name, have var_decl
in create_outofssa_var_map, at tree-ssa-coalesce.c:1051


-- 
           Summary: [4.3 Regression] ICE with tree check error: expected
                    ssa_name, have var_decl in create_outofssa_var_map
           Product: gcc
           Version: 4.3.0
            Status: UNCONFIRMED
          Keywords: ice-checking
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: kkojima at gcc dot gnu dot org
 GCC build triplet: i686-pc-linux-gnu
  GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=31866