From b7f7462b7a23b0e5465e66f1738f3caf22a38b65 Mon Sep 17 00:00:00 2001 From: Jeff Law Date: Wed, 2 Dec 1998 02:14:57 -0700 Subject: [PATCH] flow.c (delete_block): Call set_last_insn after we have reset NEXT_INSN (kept_tail). 8 * flow.c (delete_block): Call set_last_insn after we have reset NEXT_INSN (kept_tail). From-SVN: r24059 --- gcc/flow.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/gcc/flow.c b/gcc/flow.c index 825bf22294b..cc76a9ccb2b 100644 --- a/gcc/flow.c +++ b/gcc/flow.c @@ -1026,11 +1026,15 @@ delete_block (i) NEXT_INSN (PREV_INSN (basic_block_head[i])) = kept_head; if (insn != 0) PREV_INSN (insn) = kept_tail; - else - set_last_insn (kept_tail); PREV_INSN (kept_head) = PREV_INSN (basic_block_head[i]); NEXT_INSN (kept_tail) = insn; + + /* This must happen after NEXT_INSN (kept_tail) has been reinitialized + since set_last_insn will abort if it detects a non-NULL NEXT_INSN + field in its argument. */ + if (insn == NULL_RTX) + set_last_insn (kept_tail); } /* Each time we delete some basic blocks,