* [Bug tree-optimization/44545] internal compiler error: in remove_unreachable_handlers, at tree-eh
2010-06-15 16:20 [Bug tree-optimization/44545] New: internal compiler error: in remove_unreachable_handlers, at tree-eh gxgjyyozme at zrmshffbt dot mine dot nu
@ 2010-06-15 16:22 ` gxgjyyozme at zrmshffbt dot mine dot nu
2010-06-16 9:07 ` [Bug tree-optimization/44545] [4.5/4.6 Regression] " rguenth at gcc dot gnu dot org
` (5 subsequent siblings)
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From: gxgjyyozme at zrmshffbt dot mine dot nu @ 2010-06-15 16:22 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from gxgjyyozme at zrmshffbt dot mine dot nu 2010-06-15 16:22 -------
Created an attachment (id=20917)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20917&action=view)
Instance of source code which causes crash.
from geany/scintilla
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44545
^ permalink raw reply [flat|nested] 10+ messages in thread* [Bug tree-optimization/44545] [4.5/4.6 Regression] internal compiler error: in remove_unreachable_handlers, at tree-eh
2010-06-15 16:20 [Bug tree-optimization/44545] New: internal compiler error: in remove_unreachable_handlers, at tree-eh gxgjyyozme at zrmshffbt dot mine dot nu
2010-06-15 16:22 ` [Bug tree-optimization/44545] " gxgjyyozme at zrmshffbt dot mine dot nu
@ 2010-06-16 9:07 ` rguenth at gcc dot gnu dot org
2010-06-16 9:31 ` rguenth at gcc dot gnu dot org
` (4 subsequent siblings)
6 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-06-16 9:07 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from rguenth at gcc dot gnu dot org 2010-06-16 09:07 -------
CallTip.cxx: In member function 'void CallTip::DrawChunk(Surface*, int&, const
char*, int, int, int, PRectangle, bool, bool)':
CallTip.cxx:87:6: error: control flow in the middle of basic block 64
CallTip.cxx:87:6: internal compiler error: verify_flow_info failed
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
Reducing.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Ever Confirmed|0 |1
Known to work| |4.4.4
Last reconfirmed|0000-00-00 00:00:00 |2010-06-16 09:07:16
date| |
Summary|internal compiler error: in |[4.5/4.6 Regression]
|remove_unreachable_handlers,|internal compiler error: in
|at tree-eh |remove_unreachable_handlers,
| |at tree-eh
Target Milestone|--- |4.5.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44545
^ permalink raw reply [flat|nested] 10+ messages in thread* [Bug tree-optimization/44545] [4.5/4.6 Regression] internal compiler error: in remove_unreachable_handlers, at tree-eh
2010-06-15 16:20 [Bug tree-optimization/44545] New: internal compiler error: in remove_unreachable_handlers, at tree-eh gxgjyyozme at zrmshffbt dot mine dot nu
2010-06-15 16:22 ` [Bug tree-optimization/44545] " gxgjyyozme at zrmshffbt dot mine dot nu
2010-06-16 9:07 ` [Bug tree-optimization/44545] [4.5/4.6 Regression] " rguenth at gcc dot gnu dot org
@ 2010-06-16 9:31 ` rguenth at gcc dot gnu dot org
2010-06-24 21:42 ` rguenth at gcc dot gnu dot org
` (3 subsequent siblings)
6 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-06-16 9:31 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from rguenth at gcc dot gnu dot org 2010-06-16 09:30 -------
class CallTip {
int tabSize;
int DrawChunk(int &x);
int NextTabPos(int x);
};
int CallTip::NextTabPos(int x)
{
if (tabSize > 0) {
x -= 5;
x = (x + tabSize) / tabSize;
}
}
int CallTip::DrawChunk(int &x)
{
const int numEnds = 10;
int ends[numEnds + 2];
return NextTabPos(x);
}
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |ebotcazou at gcc dot gnu dot
| |org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44545
^ permalink raw reply [flat|nested] 10+ messages in thread* [Bug tree-optimization/44545] [4.5/4.6 Regression] internal compiler error: in remove_unreachable_handlers, at tree-eh
2010-06-15 16:20 [Bug tree-optimization/44545] New: internal compiler error: in remove_unreachable_handlers, at tree-eh gxgjyyozme at zrmshffbt dot mine dot nu
` (2 preceding siblings ...)
2010-06-16 9:31 ` rguenth at gcc dot gnu dot org
@ 2010-06-24 21:42 ` rguenth at gcc dot gnu dot org
2010-06-29 22:04 ` pinskia at gcc dot gnu dot org
` (2 subsequent siblings)
6 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-06-24 21:42 UTC (permalink / raw)
To: gcc-bugs
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44545
^ permalink raw reply [flat|nested] 10+ messages in thread* [Bug tree-optimization/44545] [4.5/4.6 Regression] internal compiler error: in remove_unreachable_handlers, at tree-eh
2010-06-15 16:20 [Bug tree-optimization/44545] New: internal compiler error: in remove_unreachable_handlers, at tree-eh gxgjyyozme at zrmshffbt dot mine dot nu
` (3 preceding siblings ...)
2010-06-24 21:42 ` rguenth at gcc dot gnu dot org
@ 2010-06-29 22:04 ` pinskia at gcc dot gnu dot org
2010-06-29 22:09 ` pinskia at gcc dot gnu dot org
2010-07-31 9:35 ` rguenth at gcc dot gnu dot org
6 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2010-06-29 22:04 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from pinskia at gcc dot gnu dot org 2010-06-29 22:04 -------
Reduced even further:
int DrawChunk(int *tabSize, int x)
{
const int numEnds = 10;
int ends[numEnds + 2];
if (*tabSize > 0) {
x -= 5;
x = (x + *tabSize) / *tabSize;
}
}
--- CUT ---
Compile with -O2 -fstack-check -fnon-call-exceptions -ftrapv -fexceptions
(the last option is needed for C front-end). As far as I can tell the
reassoication pass causes the ICE.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pinskia at gcc dot gnu dot
| |org
Keywords| |ice-on-valid-code
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44545
^ permalink raw reply [flat|nested] 10+ messages in thread* [Bug tree-optimization/44545] [4.5/4.6 Regression] internal compiler error: in remove_unreachable_handlers, at tree-eh
2010-06-15 16:20 [Bug tree-optimization/44545] New: internal compiler error: in remove_unreachable_handlers, at tree-eh gxgjyyozme at zrmshffbt dot mine dot nu
` (4 preceding siblings ...)
2010-06-29 22:04 ` pinskia at gcc dot gnu dot org
@ 2010-06-29 22:09 ` pinskia at gcc dot gnu dot org
2010-07-31 9:35 ` rguenth at gcc dot gnu dot org
6 siblings, 0 replies; 10+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2010-06-29 22:09 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from pinskia at gcc dot gnu dot org 2010-06-29 22:09 -------
(gdb) p debug_bb_n(6)
;; basic block 6, loop depth 0, count 0
;; prev block 5, next block 7
;; pred: 5 [100.0%] (fallthru,exec)
;; succ: 9 (eh,exec) 7 [100.0%] (fallthru,exec)
<bb 6>:
D.1986_12 = D.1986_7;
x_10 = D.1986_7 + x_9(D);
D.1989_14 = x_10 + -5;
Yep, the assignment to x_10 can trap which means it can throw an exception
which reassociation needs to be corrected/turned off for non call exceptions
with trapv turned on.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenth at gcc dot gnu dot
| |org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44545
^ permalink raw reply [flat|nested] 10+ messages in thread* [Bug tree-optimization/44545] [4.5/4.6 Regression] internal compiler error: in remove_unreachable_handlers, at tree-eh
2010-06-15 16:20 [Bug tree-optimization/44545] New: internal compiler error: in remove_unreachable_handlers, at tree-eh gxgjyyozme at zrmshffbt dot mine dot nu
` (5 preceding siblings ...)
2010-06-29 22:09 ` pinskia at gcc dot gnu dot org
@ 2010-07-31 9:35 ` rguenth at gcc dot gnu dot org
6 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2010-07-31 9:35 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from rguenth at gcc dot gnu dot org 2010-07-31 09:29 -------
GCC 4.5.1 is being released, adjusting target milestone.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|4.5.1 |4.5.2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=44545
^ permalink raw reply [flat|nested] 10+ messages in thread