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re PR target/45299 (Dwarf information is wrong with optimised code.) 

* config/picochip/picochip.c (reorder_var_tracking_notes): This
          function was dropping debug insns which caused PR45299.

From-SVN: r163617
This commit is contained in:
Hariharan Sandanagobalane 2010-08-28 16:40:27 +00:00 committed by Hariharan Sandanagobalane
parent ee9dd92eea
commit 179ba6b882
2 changed files with 61 additions and 29 deletions
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6
gcc/ChangeLog
View File

@ -1,5 +1,9 @@
2010-08-28 Uros Bizjak <ubizjak@gmail.com>
2010-08-28 Hariharan Sandanagobalane <hariharan@picochip.com>
* config/picochip/picochip.c (reorder_var_tracking_notes): This
function was dropping debug insns which caused PR45299.
2010-08-28 Uros Bizjak <ubizjak@gmail.com>
* config/i386/sse.md (extsuffix): New code attribute.
(sse4_1_<code>v8qiv8hi2): Macroize insn from sse4_1_extendv8qiv8hi2
and sse4_1_zero_extendv8qiv8hi2 using any_extend code iterator.

84
gcc/config/picochip/picochip.c
View File

@ -3138,40 +3138,68 @@ static void
reorder_var_tracking_notes (void)
{
basic_block bb;
FOR_EACH_BB (bb)
{
rtx insn, next;
rtx insn, next, last_insn = NULL_RTX;
rtx vliw_start = NULL_RTX;
rtx queue = NULL_RTX;
for (insn = BB_HEAD (bb); insn != BB_END (bb); insn = next)
{
next = NEXT_INSN (insn);
/* Iterate through the bb and find the last non-debug insn */
for (insn = BB_HEAD (bb); insn != NEXT_INSN(BB_END (bb)); insn = NEXT_INSN(insn))
{
if (NONDEBUG_INSN_P(insn))
last_insn = insn;
}
if (NONDEBUG_INSN_P (insn))
{
/* Emit queued up notes before the first instruction of a bundle. */
if (GET_MODE (insn) == TImode)
{
while (queue)
{
rtx next_queue = PREV_INSN (queue);
NEXT_INSN (PREV_INSN(insn)) = queue;
PREV_INSN (queue) = PREV_INSN(insn);
PREV_INSN (insn) = queue;
NEXT_INSN (queue) = insn;
queue = next_queue;
}
}
}
else if (NOTE_P (insn) && NOTE_KIND (insn) == NOTE_INSN_VAR_LOCATION)
{
rtx prev = PREV_INSN (insn);
PREV_INSN (next) = prev;
NEXT_INSN (prev) = next;
/* In all normal cases, queue up notes and emit them just before a TImode
instruction. For the last instruction, emit the queued notes just after
the last instruction. */
for (insn = BB_HEAD (bb); insn != NEXT_INSN(BB_END (bb)); insn = next)
{
next = NEXT_INSN (insn);
if (insn == last_insn)
{
while (queue)
{
rtx next_queue = PREV_INSN (queue);
PREV_INSN (NEXT_INSN(insn)) = queue;
NEXT_INSN(queue) = NEXT_INSN(insn);
PREV_INSN(queue) = insn;
NEXT_INSN(insn) = queue;
queue = next_queue;
}
/* There is no more to do for this bb. break*/
break;
}
else if (NONDEBUG_INSN_P (insn))
{
/* Emit queued up notes before the first instruction of a bundle. */
if (GET_MODE (insn) == TImode)
{
while (queue)
{
rtx next_queue = PREV_INSN (queue);
NEXT_INSN (PREV_INSN(insn)) = queue;
PREV_INSN (queue) = PREV_INSN(insn);
PREV_INSN (insn) = queue;
NEXT_INSN (queue) = insn;
queue = next_queue;
}
}
}
else if (NOTE_P (insn) && NOTE_KIND (insn) == NOTE_INSN_VAR_LOCATION)
{
rtx prev = PREV_INSN (insn);
PREV_INSN (next) = prev;
NEXT_INSN (prev) = next;
PREV_INSN (insn) = queue;
queue = insn;
}
}
queue = insn;
}
}
/* Make sure we are not dropping debug instructions.*/
gcc_assert (queue == NULL_RTX);
}
}