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* [Bug c/112328] New: ice in rdg_vertex_for_stmt, at tree-loop-distribution.cc:418
@ 2023-11-01 7:27 dcb314 at hotmail dot com
2023-11-01 7:36 ` [Bug c/112328] " dcb314 at hotmail dot com
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: dcb314 at hotmail dot com @ 2023-11-01 7:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112328
Bug ID: 112328
Summary: ice in rdg_vertex_for_stmt, at
tree-loop-distribution.cc:418
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: dcb314 at hotmail dot com
Target Milestone: ---
Created attachment 56481
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=56481&action=edit
C source code
For the attached C code, compiled with recent gcc, does this:
foundBugs $ ../results/bin/gcc -c -w bug973.c
foundBugs $ ../results/bin/gcc -c -w -g bug973.c
foundBugs $ ../results/bin/gcc -c -w -g -O1 bug973.c
foundBugs $ ../results/bin/gcc -c -w -g -O2 bug973.c
during GIMPLE pass: ldist
rcolor.r: In function ‘palsetup’:
rcolor.r:570:18: internal compiler error: in rdg_vertex_for_stmt, at
tree-loop-distribution.cc:418
0xf6291d rdg_vertex_for_stmt(graph*, gimple*)
../../trunk.year/gcc/tree-loop-distribution.cc:418
0xf6291d create_rdg_edges_for_scalar(graph*, tree_node*, int)
../../trunk.year/gcc/tree-loop-distribution.cc:434
The bug first seems to occur sometime between g:8c40b72036c967fb
and g:9119b008b4195e06.
I will have a go at a reduction.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c/112328] ice in rdg_vertex_for_stmt, at tree-loop-distribution.cc:418
2023-11-01 7:27 [Bug c/112328] New: ice in rdg_vertex_for_stmt, at tree-loop-distribution.cc:418 dcb314 at hotmail dot com
@ 2023-11-01 7:36 ` dcb314 at hotmail dot com
2023-11-01 8:00 ` dcb314 at hotmail dot com
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: dcb314 at hotmail dot com @ 2023-11-01 7:36 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112328
--- Comment #1 from David Binderman <dcb314 at hotmail dot com> ---
Reduced code seems to be:
int allchars, palsetup_p, palsetup_b, palsetup_e;
int *palsetup_palette;
void palsetup() {
int g;
char *s;
switch (palsetup_p)
case 6:
s = allchars;
g = 0;
for (; g < palsetup_p; g++) {
palsetup_b = 0;
for (; palsetup_b < palsetup_p; palsetup_b++)
palsetup_e = palsetup_palette[*s++];
}
}
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug c/112328] ice in rdg_vertex_for_stmt, at tree-loop-distribution.cc:418
2023-11-01 7:27 [Bug c/112328] New: ice in rdg_vertex_for_stmt, at tree-loop-distribution.cc:418 dcb314 at hotmail dot com
2023-11-01 7:36 ` [Bug c/112328] " dcb314 at hotmail dot com
@ 2023-11-01 8:00 ` dcb314 at hotmail dot com
2023-11-01 16:00 ` [Bug tree-optimization/112328] [14 Regression] " pinskia at gcc dot gnu.org
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: dcb314 at hotmail dot com @ 2023-11-01 8:00 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112328
David Binderman <dcb314 at hotmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |rguenth at gcc dot gnu.org
--- Comment #2 from David Binderman <dcb314 at hotmail dot com> ---
After a bisect, range seems to be g:1cf5dc05c678232b
to g:9119b008b4195e06.
Richard's commit e3da1d7bb288c8c864f0284bc4bc5877b466a2f7 looks a strong
candidate.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/112328] [14 Regression] ice in rdg_vertex_for_stmt, at tree-loop-distribution.cc:418
2023-11-01 7:27 [Bug c/112328] New: ice in rdg_vertex_for_stmt, at tree-loop-distribution.cc:418 dcb314 at hotmail dot com
2023-11-01 7:36 ` [Bug c/112328] " dcb314 at hotmail dot com
2023-11-01 8:00 ` dcb314 at hotmail dot com
@ 2023-11-01 16:00 ` pinskia at gcc dot gnu.org
2023-11-01 16:02 ` pinskia at gcc dot gnu.org
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-11-01 16:00 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112328
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |14.0
Component|c |tree-optimization
Keywords| |ice-on-valid-code
Summary|ice in rdg_vertex_for_stmt, |[14 Regression] ice in
|at |rdg_vertex_for_stmt, at
|tree-loop-distribution.cc:4 |tree-loop-distribution.cc:4
|18 |18
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/112328] [14 Regression] ice in rdg_vertex_for_stmt, at tree-loop-distribution.cc:418
2023-11-01 7:27 [Bug c/112328] New: ice in rdg_vertex_for_stmt, at tree-loop-distribution.cc:418 dcb314 at hotmail dot com
` (2 preceding siblings ...)
2023-11-01 16:00 ` [Bug tree-optimization/112328] [14 Regression] " pinskia at gcc dot gnu.org
@ 2023-11-01 16:02 ` pinskia at gcc dot gnu.org
2023-11-02 8:42 ` pinskia at gcc dot gnu.org
2023-11-02 8:43 ` pinskia at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-11-01 16:02 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112328
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Last reconfirmed| |2023-11-01
Ever confirmed|0 |1
Status|UNCONFIRMED |NEW
--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Confirmed.
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/112328] [14 Regression] ice in rdg_vertex_for_stmt, at tree-loop-distribution.cc:418
2023-11-01 7:27 [Bug c/112328] New: ice in rdg_vertex_for_stmt, at tree-loop-distribution.cc:418 dcb314 at hotmail dot com
` (3 preceding siblings ...)
2023-11-01 16:02 ` pinskia at gcc dot gnu.org
@ 2023-11-02 8:42 ` pinskia at gcc dot gnu.org
2023-11-02 8:43 ` pinskia at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-11-02 8:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112328
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution|--- |DUPLICATE
--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Same underlying issue as PR 112320.
*** This bug has been marked as a duplicate of bug 112320 ***
^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug tree-optimization/112328] [14 Regression] ice in rdg_vertex_for_stmt, at tree-loop-distribution.cc:418
2023-11-01 7:27 [Bug c/112328] New: ice in rdg_vertex_for_stmt, at tree-loop-distribution.cc:418 dcb314 at hotmail dot com
` (4 preceding siblings ...)
2023-11-02 8:42 ` pinskia at gcc dot gnu.org
@ 2023-11-02 8:43 ` pinskia at gcc dot gnu.org
5 siblings, 0 replies; 7+ messages in thread
From: pinskia at gcc dot gnu.org @ 2023-11-02 8:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=112328
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Before the patch:
# DEBUG s => s_42
After:
# DEBUG s => D#1
And no reference to D#1 ...
^ permalink raw reply [flat|nested] 7+ messages in thread
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2023-11-01 7:27 [Bug c/112328] New: ice in rdg_vertex_for_stmt, at tree-loop-distribution.cc:418 dcb314 at hotmail dot com
2023-11-01 7:36 ` [Bug c/112328] " dcb314 at hotmail dot com
2023-11-01 8:00 ` dcb314 at hotmail dot com
2023-11-01 16:00 ` [Bug tree-optimization/112328] [14 Regression] " pinskia at gcc dot gnu.org
2023-11-01 16:02 ` pinskia at gcc dot gnu.org
2023-11-02 8:42 ` pinskia at gcc dot gnu.org
2023-11-02 8:43 ` pinskia at gcc dot gnu.org
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