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Subject: [Bug middle-end/55597] New: [4.8 Regression] internal compiler error: in plus_constant, at explow.c:88
Date: Tue, 04 Dec 2012 21:01:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D55597

             Bug #: 55597
           Summary: [4.8 Regression] internal compiler error: in
                    plus_constant, at explow.c:88
    Classification: Unclassified
           Product: gcc
           Version: 4.8.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: middle-end
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: hjl.tools@gmail.com


On Linux/x86-64, revision 194159 gave:

[hjl@gnu-ivb-1 gcc]$ cat /tmp/testcase.c=20
struct initial_sp {
  void *sp;
  int mask;
};
void foo (int *);
__thread struct initial_sp __morestack_initial_sp;
void __morestack_release_segments (void) {
  foo (&__morestack_initial_sp.mask);
}
[hjl@gnu-ivb-1 gcc]$ ./xgcc -B./ -fPIC -O2 -mx32 -S -maddress-mode=3Dlong
/tmp/testcase.c=20
/tmp/testcase.c: In function =E2=80=98__morestack_release_segments=E2=80=99:
/tmp/testcase.c:9:1: internal compiler error: in plus_constant, at explow.c=
:88
 }
 ^
0x7321f3 plus_constant(machine_mode, rtx_def*, long)
    /export/gnu/import/git/gcc/gcc/explow.c:88
0x5fdee7 init_alias_analysis()
    /export/gnu/import/git/gcc/gcc/alias.c:2945
0xfce2ce cse_main
    /export/gnu/import/git/gcc/gcc/cse.c:6543
0xfd010e rest_of_handle_cse
    /export/gnu/import/git/gcc/gcc/cse.c:7435
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-ivb-1 gcc]$