[Bug debug/43092] [4.5 Regression] Wrong debuginfo with VTA and -fomit-frame-pointer/-mno-accumulate-outgoing-args

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43092

--- Comment #6 from Alexandre Oliva <aoliva at gcc dot gnu.org> 2011-02-03 06:04:07 UTC ---
Author: aoliva
Date: Thu Feb  3 06:04:04 2011
New Revision: 169782

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=169782
Log:
PR debug/43092
PR rtl-optimization/43494
* rtl.h (for_each_inc_dec_fn): New type.
(for_each_inc_dec): Declare.
* rtlanal.c (struct for_each_inc_dec_ops): New type.
(for_each_inc_dec_find_inc_dec): New fn.
(for_each_inc_dec_find_mem): New fn.
(for_each_inc_dec): New fn.
* dse.c (struct insn_size): Remove.
(replace_inc_dec, replace_inc_dec_mem): Remove.
(emit_inc_dec_insn_before): New fn.
(check_for_inc_dec): Use it, along with for_each_inc_dec.
(canon_address): Pass mem modes to cselib_lookup.
* cselib.h (cselib_lookup): Add memmode argument.  Adjust callers.
(cselib_lookup_from_insn): Likewise.
(cselib_subst_to_values): Likewise.
* cselib.c (find_slot_memmode): New var.
(cselib_find_slot): New fn.  Use it instead of
htab_find_slot_with_hash everywhere.
(entry_and_rtx_equal_p): Use find_slot_memmode.
(autoinc_split): New fn.
(rtx_equal_for_cselib_p): Rename and implement in terms of...
(rtx_equal_for_cselib_1): ... this.  Take memmode, pass it on.
Deal with autoinc.  Special-case recursion into MEMs.
(cselib_hash_rtx): Likewise.
(cselib_lookup_mem): Infer pmode from address mode.  Distinguish
address and MEM modes.
(cselib_subst_to_values): Add memmode, pass it on.
Deal with autoinc.
(cselib_lookup): Add memmode argument, pass it on.
(cselib_lookup_from_insn): Add memmode.
(cselib_invalidate_rtx): Discard obsolete push_operand handling.
(struct cselib_record_autoinc_data): New.
(cselib_record_autoinc_cb): New fn.
(cselib_record_sets): Use it, along with for_each_inc_dec.  Pass MEM
mode to cselib_lookup.  Reset autoinced REGs here instead of...
(cselib_process_insn): ... here.
* var-tracking.c (replace_expr_with_values, use_type): Pass MEM mode
to cselib_lookup.
(add_uses): Likewise, also to cselib_subst_to_values.
(add_stores): Likewise.
* sched-deps.c     (add_insn_mem_dependence): Pass mode to
cselib_subst_to_values.
(sched_analyze_1, sched_analyze_2): Likewise.  Adjusted.
* gcse.c (do_local_cprop): Adjusted.
* postreload.c (reload_cse_simplify_set): Adjusted.
(reload_cse_simplify_operands): Adjusted.
* sel-sched-dump (debug_mem_addr_value): Pass mode.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/cselib.c
    trunk/gcc/cselib.h
    trunk/gcc/dse.c
    trunk/gcc/gcse.c
    trunk/gcc/postreload.c
    trunk/gcc/rtl.h
    trunk/gcc/rtlanal.c
    trunk/gcc/sched-deps.c
    trunk/gcc/sel-sched-dump.c
    trunk/gcc/var-tracking.c