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* [Bug middle-end/103143] New: [12 Regression] ICE due to infinite recursion in pointer-query.cc
@ 2021-11-09 0:05 msebor at gcc dot gnu.org
2021-11-09 0:05 ` [Bug middle-end/103143] " msebor at gcc dot gnu.org
` (7 more replies)
0 siblings, 8 replies; 9+ messages in thread
From: msebor at gcc dot gnu.org @ 2021-11-09 0:05 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103143
Bug ID: 103143
Summary: [12 Regression] ICE due to infinite recursion in
pointer-query.cc
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: msebor at gcc dot gnu.org
Target Milestone: ---
As mentioned in bug 101397 comment #7, the following test cases causes infinite
recursion (and ultimately an ICE) in pointer-query.cc:
$ cat a.c && gcc -O2 -S -Wall a.c
xgcc: internal compiler error: Segmentation fault signal terminated program cc1
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.
typedef __SIZE_TYPE__ size_t;
void
__attribute__ ((noinline))
foo (size_t x)
{
struct T { char buf[64]; char buf2[64]; } t;
char *p = &t.buf[8];
char *r = t.buf2;
size_t i;
for (i = 0; i < x; i++)
{
r = __builtin_mempcpy (r, p, i);
p = r + 1;
}
}
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/103143] [12 Regression] ICE due to infinite recursion in pointer-query.cc
2021-11-09 0:05 [Bug middle-end/103143] New: [12 Regression] ICE due to infinite recursion in pointer-query.cc msebor at gcc dot gnu.org
@ 2021-11-09 0:05 ` msebor at gcc dot gnu.org
2021-11-09 0:07 ` pinskia at gcc dot gnu.org
` (6 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: msebor at gcc dot gnu.org @ 2021-11-09 0:05 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103143
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Keywords| |ice-on-valid-code
Last reconfirmed| |2021-11-09
Assignee|unassigned at gcc dot gnu.org |msebor at gcc dot gnu.org
Ever confirmed|0 |1
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/103143] [12 Regression] ICE due to infinite recursion in pointer-query.cc
2021-11-09 0:05 [Bug middle-end/103143] New: [12 Regression] ICE due to infinite recursion in pointer-query.cc msebor at gcc dot gnu.org
2021-11-09 0:05 ` [Bug middle-end/103143] " msebor at gcc dot gnu.org
@ 2021-11-09 0:07 ` pinskia at gcc dot gnu.org
2021-11-09 1:06 ` pinskia at gcc dot gnu.org
` (5 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-11-09 0:07 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103143
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |12.0
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/103143] [12 Regression] ICE due to infinite recursion in pointer-query.cc
2021-11-09 0:05 [Bug middle-end/103143] New: [12 Regression] ICE due to infinite recursion in pointer-query.cc msebor at gcc dot gnu.org
2021-11-09 0:05 ` [Bug middle-end/103143] " msebor at gcc dot gnu.org
2021-11-09 0:07 ` pinskia at gcc dot gnu.org
@ 2021-11-09 1:06 ` pinskia at gcc dot gnu.org
2021-11-09 1:10 ` pinskia at gcc dot gnu.org
` (4 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-11-09 1:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103143
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
But it does not fix:
int
f ()
{
char a[12];
__SVInt8_t freq;
return __builtin_bcmp (&freq, &freq, 10);
}
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/103143] [12 Regression] ICE due to infinite recursion in pointer-query.cc
2021-11-09 0:05 [Bug middle-end/103143] New: [12 Regression] ICE due to infinite recursion in pointer-query.cc msebor at gcc dot gnu.org
` (2 preceding siblings ...)
2021-11-09 1:06 ` pinskia at gcc dot gnu.org
@ 2021-11-09 1:10 ` pinskia at gcc dot gnu.org
2021-11-09 2:35 ` msebor at gcc dot gnu.org
` (3 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: pinskia at gcc dot gnu.org @ 2021-11-09 1:10 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103143
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Andrew Pinski from comment #1)
> But it does not fix:
Sorry wrong bug.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/103143] [12 Regression] ICE due to infinite recursion in pointer-query.cc
2021-11-09 0:05 [Bug middle-end/103143] New: [12 Regression] ICE due to infinite recursion in pointer-query.cc msebor at gcc dot gnu.org
` (3 preceding siblings ...)
2021-11-09 1:10 ` pinskia at gcc dot gnu.org
@ 2021-11-09 2:35 ` msebor at gcc dot gnu.org
2021-11-09 11:25 ` rguenth at gcc dot gnu.org
` (2 subsequent siblings)
7 siblings, 0 replies; 9+ messages in thread
From: msebor at gcc dot gnu.org @ 2021-11-09 2:35 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103143
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |patch
--- Comment #3 from Martin Sebor <msebor at gcc dot gnu.org> ---
Patch: https://gcc.gnu.org/pipermail/gcc-patches/2021-November/583735.html
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/103143] [12 Regression] ICE due to infinite recursion in pointer-query.cc
2021-11-09 0:05 [Bug middle-end/103143] New: [12 Regression] ICE due to infinite recursion in pointer-query.cc msebor at gcc dot gnu.org
` (4 preceding siblings ...)
2021-11-09 2:35 ` msebor at gcc dot gnu.org
@ 2021-11-09 11:25 ` rguenth at gcc dot gnu.org
2021-12-09 16:52 ` cvs-commit at gcc dot gnu.org
2021-12-09 16:58 ` msebor at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: rguenth at gcc dot gnu.org @ 2021-11-09 11:25 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103143
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Priority|P3 |P1
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/103143] [12 Regression] ICE due to infinite recursion in pointer-query.cc
2021-11-09 0:05 [Bug middle-end/103143] New: [12 Regression] ICE due to infinite recursion in pointer-query.cc msebor at gcc dot gnu.org
` (5 preceding siblings ...)
2021-11-09 11:25 ` rguenth at gcc dot gnu.org
@ 2021-12-09 16:52 ` cvs-commit at gcc dot gnu.org
2021-12-09 16:58 ` msebor at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-12-09 16:52 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103143
--- Comment #4 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Martin Sebor <msebor@gcc.gnu.org>:
https://gcc.gnu.org/g:425a39fd4effd9604af9f5f0780d209036d6e886
commit r12-5861-g425a39fd4effd9604af9f5f0780d209036d6e886
Author: Martin Sebor <msebor@redhat.com>
Date: Sat Dec 4 16:22:07 2021 -0700
Use the recursive form of compute_objsize [PR 103143].
gcc/ChangeLog:
PR middle-end/103143
* pointer-query.cc (gimple_call_return_array): Call
compute_objsize_r.
gcc/testsuite/ChangeLog:
PR middle-end/103143
* gcc.dg/Wstringop-overflow-83.c: New test.
^ permalink raw reply [flat|nested] 9+ messages in thread
* [Bug middle-end/103143] [12 Regression] ICE due to infinite recursion in pointer-query.cc
2021-11-09 0:05 [Bug middle-end/103143] New: [12 Regression] ICE due to infinite recursion in pointer-query.cc msebor at gcc dot gnu.org
` (6 preceding siblings ...)
2021-12-09 16:52 ` cvs-commit at gcc dot gnu.org
@ 2021-12-09 16:58 ` msebor at gcc dot gnu.org
7 siblings, 0 replies; 9+ messages in thread
From: msebor at gcc dot gnu.org @ 2021-12-09 16:58 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103143
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #5 from Martin Sebor <msebor at gcc dot gnu.org> ---
Fixed in r12-5861.
^ permalink raw reply [flat|nested] 9+ messages in thread
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2021-11-09 0:05 [Bug middle-end/103143] New: [12 Regression] ICE due to infinite recursion in pointer-query.cc msebor at gcc dot gnu.org
2021-11-09 0:05 ` [Bug middle-end/103143] " msebor at gcc dot gnu.org
2021-11-09 0:07 ` pinskia at gcc dot gnu.org
2021-11-09 1:06 ` pinskia at gcc dot gnu.org
2021-11-09 1:10 ` pinskia at gcc dot gnu.org
2021-11-09 2:35 ` msebor at gcc dot gnu.org
2021-11-09 11:25 ` rguenth at gcc dot gnu.org
2021-12-09 16:52 ` cvs-commit at gcc dot gnu.org
2021-12-09 16:58 ` msebor at gcc dot gnu.org
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