From 5338d8ac98eb182a05c25fb0fa316427c7a63317 Mon Sep 17 00:00:00 2001 From: jakub Date: Wed, 2 Aug 2000 17:29:52 +0000 Subject: * loop.c (scan_loop): Ensure update_end label does not go away until reg_scan_update is run. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@35428 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/loop.c | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'gcc/loop.c') diff --git a/gcc/loop.c b/gcc/loop.c index ea4a0271762..4903cec0e2d 100644 --- a/gcc/loop.c +++ b/gcc/loop.c @@ -1131,11 +1131,19 @@ scan_loop (loop, flags) if (flag_strength_reduce) { + if (update_end && GET_CODE (update_end) == CODE_LABEL) + /* Ensure our label doesn't go away. */ + LABEL_NUSES (update_end)++; + the_movables = movables; strength_reduce (loop, insn_count, flags); reg_scan_update (update_start, update_end, loop_max_reg); loop_max_reg = max_reg_num (); + + if (update_end && GET_CODE (update_end) == CODE_LABEL + && --LABEL_NUSES (update_end) == 0) + delete_insn (update_end); } VARRAY_FREE (reg_single_usage); -- cgit v1.2.1