PR 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.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@69401 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 4 insertions, 1 deletions

diff --git a/gcc/sched-int.h b/gcc/sched-int.h
index 0ab0d65aee4..8c3a4056342 100644
--- a/gcc/sched-int.h
+++ b/gcc/sched-int.h
@@ -112,6 +112,9 @@ struct deps
   /* Element N is set for each register that has any nonzero element
      in reg_last[N].{uses,sets,clobbers}.  */
   regset_head reg_last_in_use;
+
+  /* Element N is set for each register that is conditionally set.  */
+  regset_head reg_conditional_sets;
 };
 
 /* This structure holds some state of the current scheduling pass, and
@@ -148,7 +151,7 @@ struct sched_info
   /* Called when computing dependencies for a JUMP_INSN.  This function
      should store the set of registers that must be considered as set by
      the jump in the regset.  */
-  void (*compute_jump_reg_dependencies) (rtx, regset);
+  void (*compute_jump_reg_dependencies) (rtx, regset, regset, regset);
 
   /* The boundaries of the set of insns to be scheduled.  */
   rtx prev_head, next_tail;