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(reorg_redirect_jump): New function. 

Call it in most places instead of redirect_jump.

From-SVN: r4443
This commit is contained in:
Richard Kenner 1993-05-13 21:47:45 -04:00
parent 6d5363fa3d
commit 326f06f769
1 changed files with 29 additions and 12 deletions
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41
gcc/reorg.c
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@ -248,6 +248,7 @@ static int redundant_insn_p PROTO((rtx, rtx, rtx));
static int own_thread_p PROTO((rtx, rtx, int));
static int find_basic_block PROTO((rtx));
static void update_block PROTO((rtx, rtx));
static int reorg_redirect_jump PROTO((rtx, rtx));
static void update_reg_dead_notes PROTO((rtx, rtx));
static void update_live_status PROTO((rtx, rtx));
static rtx next_insn_no_annul PROTO((rtx));
@ -1121,7 +1122,7 @@ optimize_skip (insn)
target_label = JUMP_LABEL (next_trial);
if (target_label == 0)
target_label = find_end_label ();
redirect_jump (insn, target_label);
reorg_redirect_jump (insn, target_label);
}
INSN_ANNULLED_BRANCH_P (insn) = 1;
@ -2077,6 +2078,22 @@ update_block (insn, where)
bb_ticks[b]++;
}
/* Similar to REDIRECT_JUMP except that we update the BB_TICKS entry for
the basic block containing the jump. */
static int
reorg_redirect_jump (jump, nlabel)
rtx jump;
rtx nlabel;
{
int b = find_basic_block (jump);
if (b != -1)
bb_ticks[b]++;
return redirect_jump (jump, nlabel);
}
/* Called when INSN is being moved forward into a delay slot of DELAYED_INSN.
We check every instruction between INSN and DELAYED_INSN for REG_DEAD notes
that reference values used in INSN. If we find one, then we move the
@ -2908,12 +2925,12 @@ fill_simple_delay_slots (first, non_jumps_p)
delay_list
= add_to_delay_list (copy_rtx (next_trial), delay_list);
slots_filled++;
redirect_jump (trial, new_label);
reorg_redirect_jump (trial, new_label);
/* If we merged because we both jumped to the same place,
redirect the original insn also. */
if (target)
redirect_jump (insn, new_label);
reorg_redirect_jump (insn, new_label);
}
}
@ -3347,7 +3364,7 @@ fill_slots_from_thread (insn, condition, thread, opposite_thread, likely,
else
label = get_label_before (new_thread);
redirect_jump (insn, label);
reorg_redirect_jump (insn, label);
}
return delay_list;
@ -3513,7 +3530,7 @@ relax_delay_slots (first)
}
if (target_label != JUMP_LABEL (insn))
redirect_jump (insn, target_label);
reorg_redirect_jump (insn, target_label);
/* See if this jump branches around a unconditional jump.
If so, invert this jump and point it to the target of the
@ -3578,7 +3595,7 @@ relax_delay_slots (first)
++LABEL_NUSES (other_target);
if (invert_jump (other, target_label))
redirect_jump (insn, other_target);
reorg_redirect_jump (insn, other_target);
if (other_target)
--LABEL_NUSES (other_target);
@ -3620,7 +3637,7 @@ relax_delay_slots (first)
if (trial != target_label)
{
redirect_jump (delay_insn, trial);
reorg_redirect_jump (delay_insn, trial);
target_label = trial;
}
@ -3635,7 +3652,7 @@ relax_delay_slots (first)
target_label = find_end_label ();
else
target_label = get_label_before (trial);
redirect_jump (delay_insn, target_label);
reorg_redirect_jump (delay_insn, target_label);
next = insn;
continue;
}
@ -3652,7 +3669,7 @@ relax_delay_slots (first)
target_label = JUMP_LABEL (XVECEXP (PATTERN (trial), 0, 0));
if (target_label == 0)
target_label = find_end_label ();
redirect_jump (delay_insn, target_label);
reorg_redirect_jump (delay_insn, target_label);
next = insn;
continue;
}
@ -3802,9 +3819,9 @@ make_return_insns (first)
/* If we can't make the jump into a RETURN, redirect it to the best
RETURN and go on to the next insn. */
if (! redirect_jump (jump_insn, NULL_RTX))
if (! reorg_redirect_jump (jump_insn, NULL_RTX))
{
redirect_jump (jump_insn, real_return_label);
reorg_redirect_jump (jump_insn, real_return_label);
continue;
}
@ -3860,7 +3877,7 @@ make_return_insns (first)
else
/* It is probably more efficient to keep this with its current
delay slot as a branch to a RETURN. */
redirect_jump (jump_insn, real_return_label);
reorg_redirect_jump (jump_insn, real_return_label);
}
/* Now delete REAL_RETURN_LABEL if we never used it. Then try to fill any