[Bug debug/47590] var tracking produces wrong debug in code where optimization is turned off using pragma

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

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47590

--- Comment #6 from Alexandre Oliva <aoliva at gcc dot gnu.org> 2011-06-04 10:15:51 UTC ---
Author: aoliva
Date: Sat Jun  4 10:15:48 2011
New Revision: 174637

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=174637
Log:
PR debug/47590
* target.def (delay_sched2, delay_vartrack): New.
* doc/tm.texi.in: Update.
* doc/tm.texi: Rebuild.
* sched-rgn.c (gate_handle_sched2): Fail if delay_sched2.
* var-tracking.c (gate_handle_var_tracking): Likewise.
* config/bfin/bfin.c (bfin_flag_schedule_insns2): Drop.
(bfin_flag_var_tracking): Drop.
(output_file_start): Don't save and override flag_var_tracking.
(bfin_option_override): Ditto flag_schedule_insns_after_reload.
(bfin_reorg): Test original variables.
(TARGET_DELAY_SCHED2, TARGET_DELAY_VARTRACK): Define.
* config/ia64/ia64.c (ia64_flag_schedule_insns2): Drop.
(ia64_flag_var_tracking): Drop.
(TARGET_DELAY_SCHED2, TARGET_DELAY_VARTRACK): Define.
(ia64_file_start): Don't save and override flag_var_tracking.
(ia64_override_options_after_change): Ditto
flag_schedule_insns_after_reload.
(ia64_reorg): Test original variables.
* config/picochip/picochip.c (picochip_flag_schedule_insns2): Drop.
(picochip_flag_var_tracking): Drop.
(TARGET_DELAY_SCHED2, TARGET_DELAY_VARTRACK): Define.
(picochip_option_override): Don't save and override
flag_schedule_insns_after_reload.
(picochip_asm_file_start): Ditto flag_var_tracking.
(picochip_reorg): Test original variables.
* config/spu/spu.c (spu_flag_var_tracking): Drop.
(TARGET_DELAY_VARTRACK): Define.
(spu_var_tracking): New.
(spu_machine_dependent_reorg): Call it.
(asm_file_start): Don't save and override flag_var_tracking.

Modified:
    branches/gcc-4_6-branch/gcc/ChangeLog
    branches/gcc-4_6-branch/gcc/config/bfin/bfin.c
    branches/gcc-4_6-branch/gcc/config/ia64/ia64.c
    branches/gcc-4_6-branch/gcc/config/picochip/picochip.c
    branches/gcc-4_6-branch/gcc/config/spu/spu.c
    branches/gcc-4_6-branch/gcc/doc/tm.texi
    branches/gcc-4_6-branch/gcc/doc/tm.texi.in
    branches/gcc-4_6-branch/gcc/sched-rgn.c
    branches/gcc-4_6-branch/gcc/target.def
    branches/gcc-4_6-branch/gcc/var-tracking.c