From 126db1fa3288458f6b3149df32f392cde227f54c Mon Sep 17 00:00:00 2001 From: Jeff Law Date: Sun, 31 Dec 1995 16:05:16 -0700 Subject: [PATCH] reorg.c (fill_simple_delay_slots): Try to fill from the target of an unconditional branch if necessary. * reorg.c (fill_simple_delay_slots): Try to fill from the target of an unconditional branch if necessary. From-SVN: r10920 --- gcc/reorg.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/gcc/reorg.c b/gcc/reorg.c index edd76d5d21b..2bee6487d3d 100644 --- a/gcc/reorg.c +++ b/gcc/reorg.c @@ -2804,7 +2804,7 @@ fill_simple_delay_slots (first, non_jumps_p) register int i, j; int num_unfilled_slots = unfilled_slots_next - unfilled_slots_base; struct resources needed, set; - register int slots_to_fill, slots_filled; + int slots_to_fill, slots_filled; rtx delay_list; for (i = 0; i < num_unfilled_slots; i++) @@ -3136,6 +3136,19 @@ fill_simple_delay_slots (first, non_jumps_p) } } + /* If this is an unconditional jump, then try to get insns from the + target of the jump. */ + if (GET_CODE (insn) == JUMP_INSN + && simplejump_p (insn) + && slots_filled != slots_to_fill) + delay_list + = fill_slots_from_thread (insn, const_true_rtx, + next_active_insn (JUMP_LABEL (insn)), + NULL, 1, 1, + own_thread_p (JUMP_LABEL (insn), + JUMP_LABEL (insn), 0), + 0, slots_to_fill, &slots_filled); + if (delay_list) unfilled_slots_base[i] = emit_delay_sequence (insn, delay_list,