[Bug rtl-optimization/52983] [4.8 Regression] internal compiler error: in df_uses_record, at df-scan.c:3243

["aoliva at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52983

--- Comment #12 from Alexandre Oliva <aoliva at gcc dot gnu.org> 2012-08-02 00:34:15 UTC ---
Author: aoliva
Date: Thu Aug  2 00:34:11 2012
New Revision: 190061

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190061
Log:
PR debug/52983
* valtrack.h, valtrack.c: New.
* Makefile.in (VALTRACK_H): New.
(OBJS): Add valtrack.o.
(valtrack.o): New.
(cselib.o, dce.o, df-problems.o, combine.o): Add VALTRACK_H.
* combine.c: Include valtrack.h.
(make_compound_operation): Publish.
(cleanup_auto_inc_dec): Move to valtrack.c.
(struct rtx_subst_pair, propagate_for_debug_subst): Likewise.
(propagate_for_debug): Likewise.  Add this_basic_block parameter.
Adjust all callers.
* cselib.c: Include valtrack.h.
* dce.c: Likewise.
* df-problems.c: Likewise.
(dead_debug_init, dead_debug_reset_uses): Move to valtrack.c.
(dead_debug_finish, dead_debug_add): Likewise.
(dead_debug_insert_temp): Likewise.
* df.h (struct dead_debug_use): Move to valtrack.h.
(struct dead_debug, enum debug_temp_where): Likewise.
(dead_debug_init, dead_debug_reset_uses): Move to valtrack.h.
(dead_debug_finish, dead_debug_add): Likewise.
(dead_debug_insert_temp): Likewise.
* rtl.h (make_compound_operation): Declare.

Added:
    trunk/gcc/valtrack.c
    trunk/gcc/valtrack.h
Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/Makefile.in
    trunk/gcc/combine.c
    trunk/gcc/cselib.c
    trunk/gcc/dce.c
    trunk/gcc/df-problems.c
    trunk/gcc/df.h
    trunk/gcc/rtl.h

--- Comment #13 from Alexandre Oliva <aoliva at gcc dot gnu.org> 2012-08-02 00:34:30 UTC ---
Author: aoliva
Date: Thu Aug  2 00:34:26 2012
New Revision: 190062

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190062
Log:
PR debug/52983
* valtrack.c (cleanup_auto_inc_dec): Implement unconditionally,
falling back to copy_rtx on non-autoinc machines.
(propagate_for_debug_subst): Always use cleanup_auto_inc_dec.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/valtrack.c

--- Comment #14 from Alexandre Oliva <aoliva at gcc dot gnu.org> 2012-08-02 00:34:45 UTC ---
Author: aoliva
Date: Thu Aug  2 00:34:41 2012
New Revision: 190063

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=190063
Log:
PR debug/52983
* valtrack.c (dead_debug_insert_temp): Use cleanup_auto_inc_dec.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/valtrack.c