[Bug c/49878] New: [h8300] ICE in based_loc_descr, at dwarf2out.c:10478

[Bug c/49878] New: [h8300] ICE in based_loc_descr, at dwarf2out.c:10478

[lacombar at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49878

           Summary: [h8300] ICE in based_loc_descr, at dwarf2out.c:10478
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: lacombar@gmail.com


from: 

Using built-in specs.                                                           
COLLECT_GCC=/src/h8300/obj/destdir/bin/h8300-elf-gcc
COLLECT_LTO_WRAPPER=/src/h8300/obj/destdir/libexec/gcc/h8300-elf/4.7.0/lto-wrapper
Target: h8300-elf
Configured with: ../../../external/gpl/gcc/configure
--prefix=/src/h8300/obj/destdir --target=h8300-elf --enable-languages=c
Thread model: single
gcc version 4.7.0 20110726 (experimental) (GCC)

/src/linux/linux/fs/read_write.c:29:1: internal compiler error: in
based_loc_descr, at dwarf2out.c:10478
Please submit a full bug report, 
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

and

/src/linux/linux/fs/dcache.c: In function '__d_path':
/src/linux/linux/fs/dcache.c:2509:1: internal compiler error: in
based_loc_descr, at dwarf2out.c:10478
Please submit a full bug report, 
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.

testcases to come.

This may be related to BUG 49874.

[Bug target/49878] [h8300] ICE in based_loc_descr, at dwarf2out.c:10478

[lacombar at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49878

--- Comment #1 from Arnaud Lacombe <lacombar at gmail dot com> 2011-07-27 18:51:21 UTC ---
Created attachment 24846
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24846
reduced testcase.

[Bug target/49878] [h8300] ICE in based_loc_descr, at dwarf2out.c:10478

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49878

--- Comment #2 from Richard Henderson <rth at gcc dot gnu.org> 2011-08-01 23:07:11 UTC ---
Command-line options?  Neither -O[23] -g seem to reproduce it,
at least based on top of PR49879 fix...

[Bug target/49878] [h8300] ICE in based_loc_descr, at dwarf2out.c:10478

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49878

Richard Henderson <rth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2011.08.01 23:22:47
         AssignedTo|unassigned at gcc dot       |rth at gcc dot gnu.org
                   |gnu.org                     |
     Ever Confirmed|0                           |1

--- Comment #3 from Richard Henderson <rth at gcc dot gnu.org> 2011-08-01 23:22:47 UTC ---
Nevermind, I got it -- -fomit-frame-pointer.

The problem is that H8 allows eliminable registers in push insns.
This leads to elimination failures.

C.f. the i386 register_no_elim_operand predicate, which is the
solution to things like this.

[Bug target/49878] [h8300] ICE in based_loc_descr, at dwarf2out.c:10478

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49878

--- Comment #4 from Richard Henderson <rth at gcc dot gnu.org> 2011-08-02 18:48:04 UTC ---
Author: rth
Date: Tue Aug  2 18:48:00 2011
New Revision: 177200

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=177200
Log:
PR target/49878
h8300: Don't allow eliminable registers to be pushed.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/config/h8300/h8300-protos.h
    trunk/gcc/config/h8300/h8300.c
    trunk/gcc/config/h8300/h8300.md
    trunk/gcc/config/h8300/predicates.md

[Bug target/49878] [h8300] ICE in based_loc_descr, at dwarf2out.c:10478

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49878

Richard Henderson <rth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED

--- Comment #5 from Richard Henderson <rth at gcc dot gnu.org> 2011-08-02 20:39:18 UTC ---
Fixed.

[Bug target/49878] [h8300] ICE in based_loc_descr, at dwarf2out.c:10478

[rth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49878

Richard Henderson <rth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |4.7.0

[Bug target/49878] [h8300] ICE in based_loc_descr, at dwarf2out.c:10478

[law at redhat dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=49878

Jeffrey A. Law <law at redhat dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |tony at bakeyournoodle dot com

--- Comment #6 from Jeffrey A. Law <law at redhat dot com> ---
*** Bug 52598 has been marked as a duplicate of this bug. ***