[Bug bootstrap/45519] [4.6 regression] Failed to bootstrap

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

------- Comment #4 from rguenth at gcc dot gnu dot org  2010-09-03 13:43 -------
Reduced testcase:

typedef struct { unsigned int p_vaddr; } Elf32_Phdr;
typedef struct { int d_tag; } Elf32_Dyn;
typedef unsigned _Unwind_Ptr __attribute__((__mode__(__pointer__)));
int
_Unwind_IteratePhdrCallback (const Elf32_Phdr *p_dynamic,
                             _Unwind_Ptr load_base)
{
  Elf32_Dyn *dyn = (Elf32_Dyn *)  ((p_dynamic->p_vaddr) + (load_base));
  for (; dyn->d_tag != 0 ; dyn++)  
    if (dyn->d_tag == 3)
      return 0;
  return 1;
}
pr45519.3.i: In function '_Unwind_IteratePhdrCallback':
pr45519.3.i:11:1: error: Invalid first operand of MEM_REF.
D.2729_7
pr45519.3.i:11:1: note: in statement
D.2745_1 = &MEM[(struct Elf32_Dyn *)D.2729_7 + 4B];

pr45519.3.i:11:1: internal compiler error: verify_stmts failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


Other reduced testcase:

typedef struct { unsigned int p_vaddr; } Elf32_Phdr;
typedef struct { int d_tag; } Elf32_Dyn;
int
_Unwind_IteratePhdrCallback (const Elf32_Phdr *p_dynamic,
                             unsigned int load_base)
{
  Elf32_Dyn *dyn = (Elf32_Dyn *)  ((p_dynamic->p_vaddr) + (load_base));
  for (; dyn->d_tag != 0 ; dyn++)  
    if (dyn->d_tag == 3)
      return 0;
  return 1;
}
pr45519.3.i:4:1: internal compiler error: in build2_stat, at tree.c:3724
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45519