[Bug bootstrap/55049] New: [4.8 Regression] bootstrap failed with --with-multilib-list=m32,m64,mx32

[hjl.tools at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55049

             Bug #: 55049
           Summary: [4.8 Regression] bootstrap failed with
                    --with-multilib-list=m32,m64,mx32
    Classification: Unclassified
           Product: gcc
           Version: 4.7.3
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hjl.tools@gmail.com


On Linux/x86-64, bootstrap failed with

--with-multilib-list=m32,m64,mx32

[hjl@gnu-tools-1 gcc]$ cat /tmp/foo.c
extern void __morestack_fail (const char *msg);
void
foo (void)
{
  static const char msg[] = "munmap of stack space failed: errno ";
  __morestack_fail (msg);
}
[hjl@gnu-tools-1 gcc]$ ./xgcc -B./ -fPIC -O2 -S -mx32 /tmp/foo.c
/tmp/foo.c: In function ‘foo’:
/tmp/foo.c:7:1: internal compiler error: in extract_loc_address_regs, at
lra-constraints.c:509
 }
 ^
0x8c8fe1 extract_loc_address_regs
    /export/gnu/import/git/gcc/gcc/lra-constraints.c:509
0x8c9938 extract_loc_address_regs
    /export/gnu/import/git/gcc/gcc/lra-constraints.c:705
0x8c9aa6 extract_address_regs
    /export/gnu/import/git/gcc/gcc/lra-constraints.c:747
0x8cd88b process_address
    /export/gnu/import/git/gcc/gcc/lra-constraints.c:2537
0x8ce59a curr_insn_transform
    /export/gnu/import/git/gcc/gcc/lra-constraints.c:2930
0x8d099b lra_constraints(bool)
    /export/gnu/import/git/gcc/gcc/lra-constraints.c:3681
0x8c0533 lra(_IO_FILE*)
    /export/gnu/import/git/gcc/gcc/lra.c:2281
0x875fd1 do_reload
    /export/gnu/import/git/gcc/gcc/ira.c:4613
0x8761ca rest_of_handle_reload
    /export/gnu/import/git/gcc/gcc/ira.c:4719
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
[hjl@gnu-tools-1 gcc]$