[Bug ipa/65245] New: [5 Regression] internal compiler error: in address_matters_p, at symtab.c:1908

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65245

            Bug ID: 65245
           Summary: [5 Regression] internal compiler error: in
                    address_matters_p, at symtab.c:1908
           Product: gcc
           Version: 5.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: ipa
          Assignee: unassigned at gcc dot gnu.org
          Reporter: marxin at gcc dot gnu.org

Starting from r221040, following ICE can be seen by Steve:


Following up to my own email.  I can reproduce this with the following
cut down test case if I compile with '-O2 -fmerge-all-constants' on
MIPS.

extern const char *const _sys_siglist[128];
const char *const __new_sys_siglist[128] = { };
extern __typeof (_sys_siglist) __EI__sys_siglist __attribute__((alias (""
"__new_sys_siglist")));
extern __typeof (__new_sys_siglist) _new_sys_siglist __attribute__ ((alias
("__new_sys_siglist")));

Steve Ellcey
sellcey@imgtec.com