https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110705
Bug ID: 110705
Summary: ICE at -O2 and above: in gimplify_modify_expr, at
gimplify.cc:6255 (on GCC-12.x)
Product: gcc
Version: 12.3.0
Status: UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110129
--- Comment #2 from Haoxin Tu ---
(In reply to Andrew Pinski from comment #1)
Oops, my bad. Thank you for pointing this out. I didn't notice the front-end is
C++ in GodBolt.
I have another similar case, can you take a look, please?
```
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110129
Bug ID: 110129
Summary: Possible wrong-code on -O2 and above (affecting
versions from GCC-10.1 onward)
Product: gcc
Version: 14.0
Status: UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103513
Bug ID: 103513
Summary: [12 Regression] ICE in
evaluate_conditions_for_known_args, at
ipa-fnsummary.c:516 with -O2 and above
Product: gcc
Version: 12.0
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103237
Bug ID: 103237
Summary: wrong code with -ftree-vectorize at -O1 on
x86_64-linux-gnu
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: wrong-code
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103222
--- Comment #6 from Haoxin Tu ---
(In reply to Aldy Hernandez from comment #5)
> fixed
Thank you for the quick fixing!
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103222
Bug ID: 103222
Summary: [12 Regression] wrong code at -O2 and above on
x86_64-linux-gnu
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: wrong-code
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103219
Bug ID: 103219
Summary: [12 Regression] ICE Segmentation fault at -O3 (during
GIMPLE pass: unrolljam)
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103209
Bug ID: 103209
Summary: [12 Regression] wrong code at -O1 on x86_64-linux-gnu
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: wrong-code
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=103204
Bug ID: 103204
Summary: [11/12 Regression] ICE: in vn_reference_insert_pieces,
at tree-ssa-sccvn.c:3842 (on -O2 and above)
Product: gcc
Version: 12.0
Status:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102561
--- Comment #1 from Haoxin Tu ---
Similar case:
#include
int a;
void b(int c) {
uint16_t d;
uint16_t *e;
int16_t f;
int64_t g;
if ((g || (d = 0)) == c << (0 <= (*e ^= c)))
*e - f && (a = d);
}
Error:
during GIMPLE pass:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102561
Bug ID: 102561
Summary: [12 Regression] ICE Segmentation fault during GIMPLE
pass: evrp (on -O2 and above)
Product: gcc
Version: 12.0
Status: UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102356
Bug ID: 102356
Summary: compile-time explosion at -O3
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: compile-time-hog
Severity: normal
Priority: P3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102057
Bug ID: 102057
Summary: ICE at -O2 in extract_constrain_insn, at recog.c:2670
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99694
--- Comment #17 from Haoxin Tu ---
Thank you all for the detailed clarification! I have got the answer now. Let's
try together to make compilers a better place:)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99694
--- Comment #13 from Haoxin Tu ---
(In reply to Martin Liška from comment #12)
Ok, got you. Thanks for your speedy reply~
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99694
--- Comment #11 from Haoxin Tu ---
Hi all.
I hope you all are doing well.
I am sorry to bother you again. May I ask a quick question about how do you
treat the bug-revealing test case which may include the valid syntax but
contain the UB?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100626
--- Comment #4 from Haoxin Tu ---
I found that it also crashes (under -O1 and -Os) on today's trunk version of
GCC.
$cat small.c
#include
int a;
void b() {
int c;
uint64_t *d =
uint8_t *e;
if (a)
*d &= *e;
if (*d)
for (;;)
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100626
--- Comment #1 from Haoxin Tu ---
Another test case that crashes on all -O1 to -Os.
$cat small.c
#include
int uc_4, i_5, us_7;
void fn1() {
int li_18;
int64_t *ptr_43 = _18;
for (; us_7;) {
fn2();
*ptr_43 ^= uc_4;
}
i_5 =
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100626
Bug ID: 100626
Summary: ICE Segmentation fault (during RTL pass: split1)
Product: gcc
Version: 11.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100578
Bug ID: 100578
Summary: [12 Regression] ICE Segmentation fault during GIMPLE
pass: fre (under -g -O2/O3/Os)
Product: gcc
Version: 12.0
Status: UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100512
--- Comment #1 from Haoxin Tu ---
(In reply to Haoxin Tu from comment #0)
> $gcc -w -O2
Sorry, it's an incomplete command here. It should be "gcc -w -O2 small.c".
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100512
Bug ID: 100512
Summary: [12 Regression] ICE during GIMPLE pass: cddce in
mark_operand_necessary, at tree-ssa-dce.c:173 (under
-O2 to -Os)
Product: gcc
Version:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100349
Bug ID: 100349
Summary: [11/12 Regression] ICE Segmentation fault during
GIMPLE pass: evrp (under -O2 to -Os)
Product: gcc
Version: 12.0
Status: UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99947
--- Comment #7 from Haoxin Tu ---
Thank you all for your quick response and fixing!
Cheers,
Haoxin
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99947
Bug ID: 99947
Summary: [11 Regression] ICE Segmentation fault "during GIMPLE
pass: vect"
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99880
Bug ID: 99880
Summary: ICE in maybe_set_vectorized_backedge_value, at
tree-vect-loop.c:9161
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99694
--- Comment #7 from Haoxin Tu ---
(In reply to Martin Liška from comment #1)
> Confirmed, started with r9-7156-g33579b59aaf02eb7.
Hi Martin. I am sorry to bother you, and I just have a question about how to
find a bad commit quickly in GCC.
As
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99694
Bug ID: 99694
Summary: gcc: fatal error: Killed signal terminated program cc1
under -O2 to -Os
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97969
--- Comment #12 from Haoxin Tu ---
(In reply to Paul Sokolovsky from comment #11)
Awesome! I got your main idea here. Thank you very much, Paul!
Best,
Haoxin
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97969
--- Comment #9 from Haoxin Tu ---
(In reply to ktkachov from comment #8)
> When I had to do it in the past I've used the 'ulimit' command in linux.
> That allows you to kill a process if it exceeds a time limit (ulimit -t) or
> a memory limit
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97969
Haoxin Tu changed:
What|Removed |Added
CC||haoxintu at gmail dot com
--- Comment #7
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98074
Bug ID: 98074
Summary: [9/10 Regression] C Wrong code at O2~Os
Product: gcc
Version: 10.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98051
--- Comment #3 from Haoxin Tu ---
(In reply to H.J. Lu from comment #2)
> Please try the current master branch.
Ok, I can't reproduce it in the current trunk, either. Will check more next
time before I submit a report.
BTW, could you please
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98051
--- Comment #1 from Haoxin Tu ---
*** Bug 98050 has been marked as a duplicate of this bug. ***
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98050
Haoxin Tu changed:
What|Removed |Added
Resolution|--- |DUPLICATE
Status|UNCONFIRMED
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98051
Bug ID: 98051
Summary: ICE in logical_combine, at gimple-range-gori.cc:754 in
O2-Os
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98050
Bug ID: 98050
Summary: in logical_combine, at gimple-range-gori.cc:754
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
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