diff options
| author | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 1995-01-21 01:58:34 +0000 |
|---|---|---|
| committer | wilson <wilson@138bc75d-0d04-0410-961f-82ee72b054a4> | 1995-01-21 01:58:34 +0000 |
| commit | 09bbf9207034ce18421e7b8a051d356c8c339d9c (patch) | |
| tree | 41a003fc748ea057ce89af966f4234bb43e035e6 /gcc/function.c | |
| parent | e16e0552ec842b717c81f65a0c55bec926e64695 (diff) | |
| download | ppe42-gcc-09bbf9207034ce18421e7b8a051d356c8c339d9c.tar.gz ppe42-gcc-09bbf9207034ce18421e7b8a051d356c8c339d9c.zip | |
(delete_handlers): When clear LABEL_PRESERVE_P,
also remove label from nonlocal_label list.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@8782 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/function.c')
| -rw-r--r-- | gcc/function.c | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/gcc/function.c b/gcc/function.c index 73f59dab4e7..88b346cb624 100644 --- a/gcc/function.c +++ b/gcc/function.c @@ -2957,7 +2957,25 @@ delete_handlers () Also permit deletion of the nonlocal labels themselves if nothing local refers to them. */ if (GET_CODE (insn) == CODE_LABEL) - LABEL_PRESERVE_P (insn) = 0; + { + tree t, last_t; + + LABEL_PRESERVE_P (insn) = 0; + + /* Remove it from the nonlocal_label list, to avoid confusing + flow. */ + for (t = nonlocal_labels, last_t = 0; t; + last_t = t, t = TREE_CHAIN (t)) + if (DECL_RTL (TREE_VALUE (t)) == insn) + break; + if (t) + { + if (! last_t) + nonlocal_labels = TREE_CHAIN (nonlocal_labels); + else + TREE_CHAIN (last_t) = TREE_CHAIN (t); + } + } if (GET_CODE (insn) == INSN && ((nonlocal_goto_handler_slot != 0 && reg_mentioned_p (nonlocal_goto_handler_slot, PATTERN (insn))) |
