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* [Bug tree-optimization/97830] New: [11 Regression] ICE in expressions_equal_p at gcc/tree-ssa-sccvn.c:5631 since r11-4982-g4d6b8d4213376e8a
@ 2020-11-14 19:57 marxin at gcc dot gnu.org
2020-11-14 19:58 ` [Bug tree-optimization/97830] " marxin at gcc dot gnu.org
` (6 more replies)
0 siblings, 7 replies; 8+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-11-14 19:57 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97830
Bug ID: 97830
Summary: [11 Regression] ICE in expressions_equal_p at
gcc/tree-ssa-sccvn.c:5631 since
r11-4982-g4d6b8d4213376e8a
Product: gcc
Version: 11.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin at gcc dot gnu.org
CC: rguenth at gcc dot gnu.org
Target Milestone: ---
The following fails:
$ cat schedule.i
typedef enum { LangC } cLanguage;
typedef enum { FunctionOneArg, FunctionStandard } cFunctionType;
void *CCTK_CallFunction_function;
cLanguage CCTK_CallFunction_fdata_0;
cFunctionType CCTK_CallFunction_fdata_1;
void CCTK_CallFunction_data() {
void (*standardfunc)();
int (*oneargfunc)();
switch (CCTK_CallFunction_fdata_1) {
case FunctionOneArg:
oneargfunc = CCTK_CallFunction_function;
oneargfunc(CCTK_CallFunction_data);
break;
case FunctionStandard:
switch (CCTK_CallFunction_fdata_0) {
case LangC:
standardfunc = CCTK_CallFunction_function;
standardfunc(CCTK_CallFunction_data);
}
}
}
$ gcc schedule.i -c -O2
during GIMPLE pass: pre
schedule.i: In function 'CCTK_CallFunction_data':
schedule.i:6:6: internal compiler error: Segmentation fault
6 | void CCTK_CallFunction_data() {
| ^~~~~~~~~~~~~~~~~~~~~~
0x13be442 crash_signal
/home/marxin/Programming/gcc/gcc/toplev.c:330
0x7ffff7889d1f ???
/usr/src/debug/glibc-2.32-2.1.x86_64/signal/../sysdeps/unix/sysv/linux/x86_64/sigaction.c:0
0x16badca expressions_equal_p(tree_node*, tree_node*)
/home/marxin/Programming/gcc/gcc/tree-ssa-sccvn.c:5631
0x16a9f5f vn_reference_eq(vn_reference_s const*, vn_reference_s const*)
/home/marxin/Programming/gcc/gcc/tree-ssa-sccvn.c:705
0x16c5e86 vn_reference_hasher::equal(vn_reference_s const*, vn_reference_s
const*)
/home/marxin/Programming/gcc/gcc/tree-ssa-sccvn.c:246
0x16c6c45 hash_table<vn_reference_hasher, false,
xcallocator>::find_slot_with_hash(vn_reference_s* const&, unsigned int,
insert_option)
/home/marxin/Programming/gcc/gcc/hash-table.h:981
0x16ad9fa vn_reference_lookup_1
/home/marxin/Programming/gcc/gcc/tree-ssa-sccvn.c:1645
0x16b4137 vn_reference_lookup_call(gcall*, vn_reference_s**, vn_reference_s*)
/home/marxin/Programming/gcc/gcc/tree-ssa-sccvn.c:3579
0x16b8a1f visit_reference_op_call
/home/marxin/Programming/gcc/gcc/tree-ssa-sccvn.c:4897
0x16ba84c visit_stmt
/home/marxin/Programming/gcc/gcc/tree-ssa-sccvn.c:5503
0x16c08d2 process_bb
/home/marxin/Programming/gcc/gcc/tree-ssa-sccvn.c:7110
0x16c29bc do_rpo_vn
/home/marxin/Programming/gcc/gcc/tree-ssa-sccvn.c:7597
0x16bf041 run_rpo_vn(vn_lookup_kind)
/home/marxin/Programming/gcc/gcc/tree-ssa-sccvn.c:6684
0x1677f18 execute
/home/marxin/Programming/gcc/gcc/tree-ssa-pre.c:4392
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/97830] [11 Regression] ICE in expressions_equal_p at gcc/tree-ssa-sccvn.c:5631 since r11-4982-g4d6b8d4213376e8a
2020-11-14 19:57 [Bug tree-optimization/97830] New: [11 Regression] ICE in expressions_equal_p at gcc/tree-ssa-sccvn.c:5631 since r11-4982-g4d6b8d4213376e8a marxin at gcc dot gnu.org
@ 2020-11-14 19:58 ` marxin at gcc dot gnu.org
2020-11-15 9:11 ` dcb314 at hotmail dot com
` (5 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-11-14 19:58 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97830
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Priority|P3 |P1
Last reconfirmed| |2020-11-14
Blocks| |26163
Known to work| |10.2.0
Known to fail| |11.0
Target Milestone|--- |11.0
Ever confirmed|0 |1
--- Comment #1 from Martin Liška <marxin at gcc dot gnu.org> ---
Seen in a SPEC benchmark 436.cactusADM.
Referenced Bugs:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26163
[Bug 26163] [meta-bug] missed optimization in SPEC (2k17, 2k and 2k6 and 95)
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/97830] [11 Regression] ICE in expressions_equal_p at gcc/tree-ssa-sccvn.c:5631 since r11-4982-g4d6b8d4213376e8a
2020-11-14 19:57 [Bug tree-optimization/97830] New: [11 Regression] ICE in expressions_equal_p at gcc/tree-ssa-sccvn.c:5631 since r11-4982-g4d6b8d4213376e8a marxin at gcc dot gnu.org
2020-11-14 19:58 ` [Bug tree-optimization/97830] " marxin at gcc dot gnu.org
@ 2020-11-15 9:11 ` dcb314 at hotmail dot com
2020-11-15 9:27 ` dcb314 at hotmail dot com
` (4 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: dcb314 at hotmail dot com @ 2020-11-15 9:11 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97830
David Binderman <dcb314 at hotmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |dcb314 at hotmail dot com
--- Comment #2 from David Binderman <dcb314 at hotmail dot com> ---
I see this also. I will make a reproducer.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/97830] [11 Regression] ICE in expressions_equal_p at gcc/tree-ssa-sccvn.c:5631 since r11-4982-g4d6b8d4213376e8a
2020-11-14 19:57 [Bug tree-optimization/97830] New: [11 Regression] ICE in expressions_equal_p at gcc/tree-ssa-sccvn.c:5631 since r11-4982-g4d6b8d4213376e8a marxin at gcc dot gnu.org
2020-11-14 19:58 ` [Bug tree-optimization/97830] " marxin at gcc dot gnu.org
2020-11-15 9:11 ` dcb314 at hotmail dot com
@ 2020-11-15 9:27 ` dcb314 at hotmail dot com
2020-11-16 7:18 ` rguenth at gcc dot gnu.org
` (3 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: dcb314 at hotmail dot com @ 2020-11-15 9:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97830
--- Comment #3 from David Binderman <dcb314 at hotmail dot com> ---
Reduced C code is:
a;
b() {
((void (*)())b)(a);
b(a);
}
Interestingly, this similar code
int a;
void b() {
((void (*)())b)(a);
b(a);
}
compiles fine.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/97830] [11 Regression] ICE in expressions_equal_p at gcc/tree-ssa-sccvn.c:5631 since r11-4982-g4d6b8d4213376e8a
2020-11-14 19:57 [Bug tree-optimization/97830] New: [11 Regression] ICE in expressions_equal_p at gcc/tree-ssa-sccvn.c:5631 since r11-4982-g4d6b8d4213376e8a marxin at gcc dot gnu.org
` (2 preceding siblings ...)
2020-11-15 9:27 ` dcb314 at hotmail dot com
@ 2020-11-16 7:18 ` rguenth at gcc dot gnu.org
2020-11-16 7:33 ` marxin at gcc dot gnu.org
` (2 subsequent siblings)
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-11-16 7:18 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97830
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Mine.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/97830] [11 Regression] ICE in expressions_equal_p at gcc/tree-ssa-sccvn.c:5631 since r11-4982-g4d6b8d4213376e8a
2020-11-14 19:57 [Bug tree-optimization/97830] New: [11 Regression] ICE in expressions_equal_p at gcc/tree-ssa-sccvn.c:5631 since r11-4982-g4d6b8d4213376e8a marxin at gcc dot gnu.org
` (3 preceding siblings ...)
2020-11-16 7:18 ` rguenth at gcc dot gnu.org
@ 2020-11-16 7:33 ` marxin at gcc dot gnu.org
2020-11-16 9:27 ` cvs-commit at gcc dot gnu.org
2020-11-16 9:27 ` rguenth at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: marxin at gcc dot gnu.org @ 2020-11-16 7:33 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97830
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |seurer at gcc dot gnu.org
--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
*** Bug 97845 has been marked as a duplicate of this bug. ***
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/97830] [11 Regression] ICE in expressions_equal_p at gcc/tree-ssa-sccvn.c:5631 since r11-4982-g4d6b8d4213376e8a
2020-11-14 19:57 [Bug tree-optimization/97830] New: [11 Regression] ICE in expressions_equal_p at gcc/tree-ssa-sccvn.c:5631 since r11-4982-g4d6b8d4213376e8a marxin at gcc dot gnu.org
` (4 preceding siblings ...)
2020-11-16 7:33 ` marxin at gcc dot gnu.org
@ 2020-11-16 9:27 ` cvs-commit at gcc dot gnu.org
2020-11-16 9:27 ` rguenth at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2020-11-16 9:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97830
--- Comment #6 from CVS Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Richard Biener <rguenth@gcc.gnu.org>:
https://gcc.gnu.org/g:aaccdb9cec423ef4de9d541dbe0a95fa3346f430
commit r11-5047-gaaccdb9cec423ef4de9d541dbe0a95fa3346f430
Author: Richard Biener <rguenther@suse.de>
Date: Mon Nov 16 08:40:47 2020 +0100
tree-optimization/97830 - fix compare of incomplete type size in VN
This avoids passing NULL to expressions_equal_p.
2020-11-16 Richard Biener <rguenther@suse.de>
PR tree-optimization/97830
* tree-ssa-sccvn.c (vn_reference_eq): Check for incomplete
types before comparing TYPE_SIZE.
* gcc.dg/pr97830.c: New testcase.
^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug tree-optimization/97830] [11 Regression] ICE in expressions_equal_p at gcc/tree-ssa-sccvn.c:5631 since r11-4982-g4d6b8d4213376e8a
2020-11-14 19:57 [Bug tree-optimization/97830] New: [11 Regression] ICE in expressions_equal_p at gcc/tree-ssa-sccvn.c:5631 since r11-4982-g4d6b8d4213376e8a marxin at gcc dot gnu.org
` (5 preceding siblings ...)
2020-11-16 9:27 ` cvs-commit at gcc dot gnu.org
@ 2020-11-16 9:27 ` rguenth at gcc dot gnu.org
6 siblings, 0 replies; 8+ messages in thread
From: rguenth at gcc dot gnu.org @ 2020-11-16 9:27 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97830
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #7 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 8+ messages in thread
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2020-11-14 19:57 [Bug tree-optimization/97830] New: [11 Regression] ICE in expressions_equal_p at gcc/tree-ssa-sccvn.c:5631 since r11-4982-g4d6b8d4213376e8a marxin at gcc dot gnu.org
2020-11-14 19:58 ` [Bug tree-optimization/97830] " marxin at gcc dot gnu.org
2020-11-15 9:11 ` dcb314 at hotmail dot com
2020-11-15 9:27 ` dcb314 at hotmail dot com
2020-11-16 7:18 ` rguenth at gcc dot gnu.org
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