r176315 - in /trunk/gcc: ChangeLog modulo-sched...

[bernds at gcc dot gnu dot org]

Author: bernds
Date: Fri Jul 15 13:20:10 2011
New Revision: 176315

URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=176315
Log:
	Revert
	2003-07-10  Eric Botcazou  <ebotcazou@libertysurf.fr>
	PR rtl-optimization/11320
	* sched-int.h (struct deps) [reg_conditional_sets]: New field.
	(struct sched_info) [compute_jump_reg_dependencies]: New prototype.
	* sched-deps.c (sched_analyze_insn) [JUMP_INSN]: Update call to
	current_sched_info->compute_jump_reg_dependencies. Record which
	registers are used and which registers are set by the jump.
	Clear deps->reg_conditional_sets after a barrier.
	Set deps->reg_conditional_sets if the insn is a COND_EXEC.
	Clear deps->reg_conditional_sets if the insn is not a COND_EXEC.
	(init_deps): Initialize reg_conditional_sets.
	(free_deps): Clear reg_conditional_sets.
	* sched-ebb.c (compute_jump_reg_dependencies): New prototype.
	Mark registers live on entry of the fallthrough block and conditionally
	set as set by the jump. Mark registers live on entry of non-fallthrough
	blocks as used by the jump.
	* sched-rgn.c (compute_jump_reg_dependencies): New prototype.
	Mark new parameters as unused.

Modified:
    trunk/gcc/ChangeLog
    trunk/gcc/modulo-sched.c
    trunk/gcc/sched-deps.c
    trunk/gcc/sched-ebb.c
    trunk/gcc/sched-int.h
    trunk/gcc/sched-rgn.c