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gcc/gcc45-pr45055.patch

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2010-07-30 Jakub Jelinek <jakub@redhat.com>
PR debug/45055
PR rtl-optimization/45137
* rtl.h (prev_nonnote_nondebug_insn, next_nonnote_nondebug_insn): New
prototypes.
* emit-rtl.c (prev_nonnote_nondebug_insn, next_nonnote_nondebug_insn):
New functions.
* combine.c (next_nonnote_nondebug_insn): Removed.
* ifcvt.c (noce_process_if_block): Use prev_nonnote_nondebug_insn.
* haifa-sched.c (queue_to_ready): Use next_nonnote_nondebug_insn.
* sched-deps.c (sched_analyze_insn): Likewise.
(fixup_sched_groups, deps_start_bb): Use prev_nonnote_nondebug_insn.
* rtlanal.c (canonicalize_condition): Likewise.
* postreload.c (reload_combine): Likewise.
(reload_cse_move2add): Use next_nonnote_nondebug_insn.
* gcc.dg/pr45055.c: New test.
--- gcc/rtl.h.jj 2010-06-11 11:06:01.167282688 +0200
+++ gcc/rtl.h 2010-07-30 16:33:28.722450824 +0200
@@ -1709,6 +1709,8 @@ extern rtx next_nonnote_insn (rtx);
extern rtx next_nonnote_insn_bb (rtx);
extern rtx prev_nondebug_insn (rtx);
extern rtx next_nondebug_insn (rtx);
+extern rtx prev_nonnote_nondebug_insn (rtx);
+extern rtx next_nonnote_nondebug_insn (rtx);
extern rtx prev_real_insn (rtx);
extern rtx next_real_insn (rtx);
extern rtx prev_active_insn (rtx);
--- gcc/emit-rtl.c.jj 2010-06-11 11:06:01.104409599 +0200
+++ gcc/emit-rtl.c 2010-07-30 16:33:28.733479816 +0200
@@ -3162,6 +3162,38 @@ prev_nondebug_insn (rtx insn)
return insn;
}
+/* Return the next insn after INSN that is not a NOTE nor DEBUG_INSN.
+ This routine does not look inside SEQUENCEs. */
+
+rtx
+next_nonnote_nondebug_insn (rtx insn)
+{
+ while (insn)
+ {
+ insn = NEXT_INSN (insn);
+ if (insn == 0 || (!NOTE_P (insn) && !DEBUG_INSN_P (insn)))
+ break;
+ }
+
+ return insn;
+}
+
+/* Return the previous insn before INSN that is not a NOTE nor DEBUG_INSN.
+ This routine does not look inside SEQUENCEs. */
+
+rtx
+prev_nonnote_nondebug_insn (rtx insn)
+{
+ while (insn)
+ {
+ insn = PREV_INSN (insn);
+ if (insn == 0 || (!NOTE_P (insn) && !DEBUG_INSN_P (insn)))
+ break;
+ }
+
+ return insn;
+}
+
/* Return the next INSN, CALL_INSN or JUMP_INSN after INSN;
or 0, if there is none. This routine does not look inside
SEQUENCEs. */
--- gcc/combine.c.jj 2010-06-11 11:06:01.175282562 +0200
+++ gcc/combine.c 2010-07-30 16:33:28.754479788 +0200
@@ -12680,29 +12680,6 @@ reg_bitfield_target_p (rtx x, rtx body)
return 0;
}
-
-/* Return the next insn after INSN that is neither a NOTE nor a
- DEBUG_INSN. This routine does not look inside SEQUENCEs. */
-
-static rtx
-next_nonnote_nondebug_insn (rtx insn)
-{
- while (insn)
- {
- insn = NEXT_INSN (insn);
- if (insn == 0)
- break;
- if (NOTE_P (insn))
- continue;
- if (DEBUG_INSN_P (insn))
- continue;
- break;
- }
-
- return insn;
-}
-
-
/* Given a chain of REG_NOTES originally from FROM_INSN, try to place them
as appropriate. I3 and I2 are the insns resulting from the combination
--- gcc/ifcvt.c.jj 2010-06-11 11:06:00.939658763 +0200
+++ gcc/ifcvt.c 2010-07-30 16:33:28.768458909 +0200
@@ -2285,9 +2285,7 @@ noce_process_if_block (struct noce_if_in
}
else
{
- insn_b = prev_nonnote_insn (if_info->cond_earliest);
- while (insn_b && DEBUG_INSN_P (insn_b))
- insn_b = prev_nonnote_insn (insn_b);
+ insn_b = prev_nonnote_nondebug_insn (if_info->cond_earliest);
/* We're going to be moving the evaluation of B down from above
COND_EARLIEST to JUMP. Make sure the relevant data is still
intact. */
--- gcc/haifa-sched.c.jj 2010-06-30 16:53:00.807292319 +0200
+++ gcc/haifa-sched.c 2010-07-30 16:33:28.785485355 +0200
@@ -1997,13 +1997,9 @@ queue_to_ready (struct ready_list *ready
q_ptr = NEXT_Q (q_ptr);
if (dbg_cnt (sched_insn) == false)
- {
- /* If debug counter is activated do not requeue insn next after
- last_scheduled_insn. */
- skip_insn = next_nonnote_insn (last_scheduled_insn);
- while (skip_insn && DEBUG_INSN_P (skip_insn))
- skip_insn = next_nonnote_insn (skip_insn);
- }
+ /* If debug counter is activated do not requeue insn next after
+ last_scheduled_insn. */
+ skip_insn = next_nonnote_nondebug_insn (last_scheduled_insn);
else
skip_insn = NULL_RTX;
--- gcc/sched-deps.c.jj 2010-06-11 11:06:01.160283802 +0200
+++ gcc/sched-deps.c 2010-07-30 16:33:28.799486427 +0200
@@ -1517,9 +1517,7 @@ fixup_sched_groups (rtx insn)
delete_all_dependences (insn);
- prev_nonnote = prev_nonnote_insn (insn);
- while (DEBUG_INSN_P (prev_nonnote))
- prev_nonnote = prev_nonnote_insn (prev_nonnote);
+ prev_nonnote = prev_nonnote_nondebug_insn (insn);
if (BLOCK_FOR_INSN (insn) == BLOCK_FOR_INSN (prev_nonnote)
&& ! sched_insns_conditions_mutex_p (insn, prev_nonnote))
add_dependence (insn, prev_nonnote, REG_DEP_ANTI);
@@ -2695,9 +2693,7 @@ sched_analyze_insn (struct deps_desc *de
if (JUMP_P (insn))
{
rtx next;
- next = next_nonnote_insn (insn);
- while (next && DEBUG_INSN_P (next))
- next = next_nonnote_insn (next);
+ next = next_nonnote_nondebug_insn (insn);
if (next && BARRIER_P (next))
reg_pending_barrier = MOVE_BARRIER;
else
@@ -3366,10 +3362,8 @@ deps_start_bb (struct deps_desc *deps, r
hard registers correct. */
if (! reload_completed && !LABEL_P (head))
{
- rtx insn = prev_nonnote_insn (head);
+ rtx insn = prev_nonnote_nondebug_insn (head);
- while (insn && DEBUG_INSN_P (insn))
- insn = prev_nonnote_insn (insn);
if (insn && CALL_P (insn))
deps->in_post_call_group_p = post_call_initial;
}
--- gcc/postreload.c.jj 2010-06-11 11:06:00.856659196 +0200
+++ gcc/postreload.c 2010-07-30 16:34:14.703335670 +0200
@@ -810,7 +810,7 @@ reload_combine (void)
rtx reg = SET_DEST (set);
rtx plus = SET_SRC (set);
rtx base = XEXP (plus, 1);
- rtx prev = prev_nonnote_insn (insn);
+ rtx prev = prev_nonnote_nondebug_insn (insn);
rtx prev_set = prev ? single_set (prev) : NULL_RTX;
unsigned int regno = REGNO (reg);
rtx index_reg = NULL_RTX;
@@ -1323,7 +1323,7 @@ reload_cse_move2add (rtx first)
&& MODES_OK_FOR_MOVE2ADD (GET_MODE (reg),
reg_mode[REGNO (src)]))
{
- rtx next = next_nonnote_insn (insn);
+ rtx next = next_nonnote_nondebug_insn (insn);
rtx set = NULL_RTX;
if (next)
set = single_set (next);
--- gcc/rtlanal.c.jj 2010-06-11 11:06:00.867421367 +0200
+++ gcc/rtlanal.c 2010-07-30 16:33:28.820478800 +0200
@@ -4755,9 +4755,7 @@ canonicalize_condition (rtx insn, rtx co
stop if it isn't a single set or if it has a REG_INC note because
we don't want to bother dealing with it. */
- do
- prev = prev_nonnote_insn (prev);
- while (prev && DEBUG_INSN_P (prev));
+ prev = prev_nonnote_nondebug_insn (prev);
if (prev == 0
|| !NONJUMP_INSN_P (prev)
--- gcc/testsuite/gcc.dg/pr45055.c.jj 2010-07-30 16:33:28.821480043 +0200
+++ gcc/testsuite/gcc.dg/pr45055.c 2010-07-30 16:33:28.822479707 +0200
@@ -0,0 +1,41 @@
+/* PR debug/45055 */
+/* { dg-do compile } */
+/* { dg-options "-O2 -ftracer -fsched-pressure -funroll-loops -fschedule-insns -fcompare-debug" } */
+
+int colormap[10];
+
+extern int bar ();
+
+void
+foo (int *img, int fp, int y, int *ptr, int depth, int c, int t, int xm)
+{
+ int x, color, count;
+ for (; y; y--)
+ {
+ if (depth)
+ {
+ count = bar ();
+ for (x = xm; x; x--)
+ {
+ if (c != 1)
+ count = color = -1;
+ if (count == 0)
+ color = count = bar ();
+ if (color)
+ t = bar (fp);
+ *ptr++ = colormap[t];
+ }
+ }
+ switch (*img)
+ {
+ case 1:
+ bar ();
+ case 3:
+ case -1:
+ case -3:
+ bar ();
+ case -4:
+ bar ();
+ }
+ }
+}
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