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re PR middle-end/21460 (sjlj_emit_function_enter adds rtl to wrong block)

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PR middle-end/21460
	* except.c (sjlj_emit_function_enter): Find the function begin
	note even when it's not in first basic block.

From-SVN: r103930
This commit is contained in:
Alan Modra 2005-09-06 04:53:53 +00:00 committed by Alan Modra
parent 67da153420
commit fc781ee000
2 changed files with 18 additions and 14 deletions
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6
gcc/ChangeLog
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@ -1,3 +1,9 @@
2005-09-06 Alan Modra <amodra@bigpond.net.au>
PR middle-end/21460
* except.c (sjlj_emit_function_enter): Find the function begin
note even when it's not in first basic block.
2005-09-06 Kelley Cook <kcook@gcc.gnu.org>
* acinclude.m4: Renamed from aclocal.m4. Delete AM_LANGINFO_CODESET,

26
gcc/except.c
View File

@ -1728,6 +1728,7 @@ static void
sjlj_emit_function_enter (rtx dispatch_label)
{
rtx fn_begin, fc, mem, seq;
bool fn_begin_outside_block;
fc = cfun->eh->sjlj_fc;
@ -1783,23 +1784,20 @@ sjlj_emit_function_enter (rtx dispatch_label)
do this in a block that is at loop level 0 and dominates all
can_throw_internal instructions. */
fn_begin_outside_block = true;
for (fn_begin = get_insns (); ; fn_begin = NEXT_INSN (fn_begin))
if (NOTE_P (fn_begin)
&& (NOTE_LINE_NUMBER (fn_begin) == NOTE_INSN_FUNCTION_BEG
|| NOTE_LINE_NUMBER (fn_begin) == NOTE_INSN_BASIC_BLOCK))
break;
if (NOTE_LINE_NUMBER (fn_begin) == NOTE_INSN_FUNCTION_BEG)
if (NOTE_P (fn_begin))
{
if (NOTE_LINE_NUMBER (fn_begin) == NOTE_INSN_FUNCTION_BEG)
break;
else if (NOTE_LINE_NUMBER (fn_begin) == NOTE_INSN_BASIC_BLOCK)
fn_begin_outside_block = false;
}
if (fn_begin_outside_block)
insert_insn_on_edge (seq, single_succ_edge (ENTRY_BLOCK_PTR));
else
{
rtx last = BB_END (single_succ (ENTRY_BLOCK_PTR));
for (; ; fn_begin = NEXT_INSN (fn_begin))
if ((NOTE_P (fn_begin)
&& NOTE_LINE_NUMBER (fn_begin) == NOTE_INSN_FUNCTION_BEG)
|| fn_begin == last)
break;
emit_insn_after (seq, fn_begin);
}
emit_insn_after (seq, fn_begin);
}
/* Call back from expand_function_end to know where we should put