[Bug tree-optimization/44336] New: [4.6 Regression] ICE: verify_ssa failed: SSA_NAME_DEF_STMT is wrong with -fipa-struct-reorg -fwhole-program

["zsojka at seznam dot cz" <gcc-bugzilla at gcc dot gnu dot org>]

Tested revisions:
r160052 - crash
r159523 - segfault (release checking)
r159387 - OK
r158969 - OK
r158095 - OK

Compiler output:
$ gcc -O1 -fipa-struct-reorg -fwhole-program testcase.c
testcase.c: In function 'main':
testcase.c:4:3: warning: return makes integer from pointer without a cast
[enabled by default]
testcase.c:4:3: warning: function returns address of local variable [enabled by
default]
testcase.c:5:1: error: SSA_NAME_DEF_STMT is wrong
Expected definition statement:
s.0_1 = (long int) &s.1;

Actual definition statement:
s.0_1 = (long int) &s;
testcase.c:5:1: 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.

----- testcase.c -----
int main ()
{
  struct { int i; } s[1];
  return s;
}
----------------------


-- 
           Summary: [4.6 Regression] ICE: verify_ssa failed:
                    SSA_NAME_DEF_STMT is wrong with -fipa-struct-reorg -
                    fwhole-program
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: tree-optimization
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: zsojka at seznam dot cz
  GCC host triplet: x86_64-pc-linux-gnu
GCC target triplet: x86_64-pc-linux-gnu


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44336