[Bug tree-optimization/69588] [4.9 Regression] ICE: tree check: expected ssa_name, have var_decl in unlink_stmt_vdef, at tree-ssa-operands.c:1314

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69588

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2016-02-01
      Known to work|                            |4.8.5, 5.3.0, 6.0
   Target Milestone|---                         |4.9.4
            Summary|ICE: tree check: expected   |[4.9 Regression] ICE: tree
                   |ssa_name, have var_decl in  |check: expected ssa_name,
                   |unlink_stmt_vdef, at        |have var_decl in
                   |tree-ssa-operands.c:1314    |unlink_stmt_vdef, at
                   |                            |tree-ssa-operands.c:1314
     Ever confirmed|0                           |1
      Known to fail|                            |4.9.3

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Confirmed on the 4.9 branch, doesn't reproduce on the GCC 5 branch or trunk,
works in 4.8.  We likely have a duplicate for this.

t.ii:19:1: internal compiler error: tree check: expected ssa_name, have
var_decl in unlink_stmt_vdef, at tree-ssa-operands.c:1314
 }
 ^
0x106490e tree_check_failed(tree_node const*, char const*, int, char const*,
...)
        /space/rguenther/src/svn/gcc-4_9-branch/gcc/tree.c:9197
0x5e60c1 tree_check(tree_node*, char const*, int, char const*, tree_code)
        /space/rguenther/src/svn/gcc-4_9-branch/gcc/tree.h:2724
0xf3aca4 unlink_stmt_vdef(gimple_statement_base*)
        /space/rguenther/src/svn/gcc-4_9-branch/gcc/tree-ssa-operands.c:1314
0xe10aa8 optimize_clobbers
        /space/rguenther/src/svn/gcc-4_9-branch/gcc/tree-eh.c:3449
0xe13521 cleanup_empty_eh
        /space/rguenther/src/svn/gcc-4_9-branch/gcc/tree-eh.c:4415
0xe13a44 cleanup_all_empty_eh
        /space/rguenther/src/svn/gcc-4_9-branch/gcc/tree-eh.c:4546
0xe13aca execute_cleanup_eh_1
        /space/rguenther/src/svn/gcc-4_9-branch/gcc/tree-eh.c:4576
0xe13b1a execute_cleanup_eh
        /space/rguenther/src/svn/gcc-4_9-branch/gcc/tree-eh.c:4601