[Bug c++/60146] [4.8/4.9 Regression] ICE when compiling this code with -fopenmp

[reichelt at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60146

Volker Reichelt <reichelt at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
      Known to work|                            |4.7.0
           Keywords|                            |ice-on-valid-code
   Last reconfirmed|                            |2014-02-14
                 CC|                            |reichelt at gcc dot gnu.org
     Ever confirmed|0                           |1
            Summary|Regression: ICE when        |[4.8/4.9 Regression] ICE
                   |compiling this code with    |when compiling this code
                   |-fopenmp                    |with -fopenmp
      Known to fail|                            |4.8.0, 4.9.0

--- Comment #1 from Volker Reichelt <reichelt at gcc dot gnu.org> ---
Confirmed. ICEs since GCC 4.8.0.

Reduced testcase:

==========================================
int foo() { return 0; }

template<typename T> void bar()
{
#pragma omp parallel for
  for (T i = foo(); i < 8; ++i) {}
}

void baz()
{
  bar<int>();
}
==========================================

bug.cc: In instantiation of 'void bar() [with T = int]':
bug.cc:11:12:   required from here
bug.cc:6:3: internal compiler error: Segmentation fault
   for (T i = foo(); i < 8; ++i) {}
   ^
0xba523f crash_signal
        ../../gcc/gcc/toplev.c:337
0x733640 contains_struct_check
        ../../gcc/gcc/tree.h:2822
0x733640 finish_omp_for(unsigned int, tree_code, tree_node*, tree_node*,
tree_node*, tree_node*, tree_node*, tree_node*, tree_node*)
        ../../gcc/gcc/cp/semantics.c:6434
0x613325 tsubst_expr
        ../../gcc/gcc/cp/pt.c:13637
0x61250c tsubst_expr
        ../../gcc/gcc/cp/pt.c:13586
0x61208c tsubst_expr
        ../../gcc/gcc/cp/pt.c:13424
0x60f2a9 instantiate_decl(tree_node*, int, bool)
        ../../gcc/gcc/cp/pt.c:19690
0x64d8c7 instantiate_pending_templates(int)
        ../../gcc/gcc/cp/pt.c:19806
0x688bed cp_write_global_declarations()
        ../../gcc/gcc/cp/decl2.c:4148
Please submit a full bug report, [etc.]