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* [Bug tree-optimization/106938] New: [13 Regression] ICE in predicate::init_from_control_deps
@ 2022-09-14 4:48 asolokha at gmx dot com
2022-09-14 7:06 ` [Bug tree-optimization/106938] " rguenth at gcc dot gnu.org
` (3 more replies)
0 siblings, 4 replies; 5+ messages in thread
From: asolokha at gmx dot com @ 2022-09-14 4:48 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106938
Bug ID: 106938
Summary: [13 Regression] ICE in
predicate::init_from_control_deps
Product: gcc
Version: 13.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: asolokha at gmx dot com
CC: hubicka at gcc dot gnu.org, rguenth at gcc dot gnu.org
Target Milestone: ---
gcc 13.0.0 20220911 snapshot (g:0ea5e3f4542832b8da016b152695e64a2a386309) ICEs
when compiling the following testcase w/ -O1 -fno-ipa-pure-const -fno-tree-ccp
-Wuninitialized:
int n;
void
undefined (void);
__attribute__ ((returns_twice)) int
zero (void)
{
return 0;
}
void
bar (int)
{
int i;
for (i = 0; i < -1; ++i)
n = 0;
}
__attribute__ ((simd)) void
foo (void)
{
int uninitialized;
undefined ();
while (uninitialized < 1)
{
bar (zero ());
++uninitialized;
}
}
% gcc-13.0.0 -O1 -fno-ipa-pure-const -fno-tree-ccp -Wuninitialized -w -c
r1v5kswd.c
during GIMPLE pass: uninit
r1v5kswd.c: In function 'foo.simdclone.0':
r1v5kswd.c:22:1: internal compiler error: Segmentation fault
22 | foo (void)
| ^~~
0xeebbdf crash_signal
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/toplev.cc:314
0x1d2a191 gimple_code
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/gimple.h:1807
0x1d2a191 predicate::init_from_control_deps(vec<edge_def*, va_heap, vl_ptr>
const*, unsigned int, bool)
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/gimple-predicate-analysis.cc:1776
0x1d2cc00 predicate::init_from_control_deps(vec<edge_def*, va_heap, vl_ptr>
const*, unsigned int, bool)
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/gimple-predicate-analysis.cc:1722
0x1d2cc00 uninit_analysis::init_from_phi_def(gphi*)
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/gimple-predicate-analysis.cc:2116
0x1d2e9ab uninit_analysis::is_use_guarded(gimple*, basic_block_def*, gphi*,
unsigned int, hash_set<gphi*, false, default_hash_traits<gphi*> >*)
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/gimple-predicate-analysis.cc:2172
0x1d2ef59 uninit_analysis::is_use_guarded(gimple*, basic_block_def*, gphi*,
unsigned int)
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/gimple-predicate-analysis.cc:2195
0x1140e01 find_uninit_use
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/tree-ssa-uninit.cc:1238
0x1141756 warn_uninitialized_phi
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/tree-ssa-uninit.cc:1308
0x1141756 execute_late_warn_uninitialized
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/tree-ssa-uninit.cc:1429
0x1141756 execute
/var/tmp/portage/sys-devel/gcc-13.0.0_p20220911/work/gcc-13-20220911/gcc/tree-ssa-uninit.cc:1446
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/106938] [13 Regression] ICE in predicate::init_from_control_deps
2022-09-14 4:48 [Bug tree-optimization/106938] New: [13 Regression] ICE in predicate::init_from_control_deps asolokha at gmx dot com
@ 2022-09-14 7:06 ` rguenth at gcc dot gnu.org
2022-09-14 8:01 ` [Bug tree-optimization/106938] [13 Regression] ICE in predicate::init_from_control_deps since r13-2500-g0a4a2667dc115ca7 marxin at gcc dot gnu.org
` (2 subsequent siblings)
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-09-14 7:06 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106938
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |13.0
Ever confirmed|0 |1
Status|UNCONFIRMED |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
Last reconfirmed| |2022-09-14
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
Oh, another case.
t.c:22:1: error: basic block 3 has no control altering stmt but 2 outgoing
edges
22 | foo (void)
| ^~~
<bb 3> [local count: 440058051]:
# uninitialized_3(ab) = PHI <uninitialized_6(ab)(4), uninitialized_5(6)>
goto <bb 5>; [99.96%]
I suppose I should try to push the part of the verifier that "works". I'm
going to keep the assert in uninit analysis since it's nice to catch all these
bugs.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/106938] [13 Regression] ICE in predicate::init_from_control_deps since r13-2500-g0a4a2667dc115ca7
2022-09-14 4:48 [Bug tree-optimization/106938] New: [13 Regression] ICE in predicate::init_from_control_deps asolokha at gmx dot com
2022-09-14 7:06 ` [Bug tree-optimization/106938] " rguenth at gcc dot gnu.org
@ 2022-09-14 8:01 ` marxin at gcc dot gnu.org
2022-09-14 12:51 ` cvs-commit at gcc dot gnu.org
2022-09-14 12:51 ` rguenth at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: marxin at gcc dot gnu.org @ 2022-09-14 8:01 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106938
Martin Liška <marxin at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |marxin at gcc dot gnu.org
Summary|[13 Regression] ICE in |[13 Regression] ICE in
|predicate::init_from_contro |predicate::init_from_contro
|l_deps |l_deps since
| |r13-2500-g0a4a2667dc115ca7
--- Comment #2 from Martin Liška <marxin at gcc dot gnu.org> ---
Btw. started with r13-2500-g0a4a2667dc115ca7.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/106938] [13 Regression] ICE in predicate::init_from_control_deps since r13-2500-g0a4a2667dc115ca7
2022-09-14 4:48 [Bug tree-optimization/106938] New: [13 Regression] ICE in predicate::init_from_control_deps asolokha at gmx dot com
2022-09-14 7:06 ` [Bug tree-optimization/106938] " rguenth at gcc dot gnu.org
2022-09-14 8:01 ` [Bug tree-optimization/106938] [13 Regression] ICE in predicate::init_from_control_deps since r13-2500-g0a4a2667dc115ca7 marxin at gcc dot gnu.org
@ 2022-09-14 12:51 ` cvs-commit at gcc dot gnu.org
2022-09-14 12:51 ` rguenth at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2022-09-14 12:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106938
--- Comment #3 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:cd14c97cd92ca11c66ee3d8dc4dd543c5aa8e024
commit r13-2664-gcd14c97cd92ca11c66ee3d8dc4dd543c5aa8e024
Author: Richard Biener <rguenther@suse.de>
Date: Wed Sep 14 13:53:56 2022 +0200
tree-optimization/106938 - cleanup abnormal edges after inlining
After inlining and IPA transforms we run fixup_cfg to fixup CFG
effects in other functions. But that fails to clean abnormal
edges from non-pure/const calls which might no longer be necessary
when ->calls_setjmp is false. The following ensures this happens
and refactors things so we call EH/abnormal cleanup only on the
last stmt in a block.
PR tree-optimization/106938
* tree-cfg.cc (execute_fixup_cfg): Purge dead abnormal
edges for all last stmts in a block. Do EH cleanup
only on the last stmt in a block.
* gcc.dg/pr106938.c: New testcase.
^ permalink raw reply [flat|nested] 5+ messages in thread
* [Bug tree-optimization/106938] [13 Regression] ICE in predicate::init_from_control_deps since r13-2500-g0a4a2667dc115ca7
2022-09-14 4:48 [Bug tree-optimization/106938] New: [13 Regression] ICE in predicate::init_from_control_deps asolokha at gmx dot com
` (2 preceding siblings ...)
2022-09-14 12:51 ` cvs-commit at gcc dot gnu.org
@ 2022-09-14 12:51 ` rguenth at gcc dot gnu.org
3 siblings, 0 replies; 5+ messages in thread
From: rguenth at gcc dot gnu.org @ 2022-09-14 12:51 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106938
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 5+ messages in thread
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2022-09-14 4:48 [Bug tree-optimization/106938] New: [13 Regression] ICE in predicate::init_from_control_deps asolokha at gmx dot com
2022-09-14 7:06 ` [Bug tree-optimization/106938] " rguenth at gcc dot gnu.org
2022-09-14 8:01 ` [Bug tree-optimization/106938] [13 Regression] ICE in predicate::init_from_control_deps since r13-2500-g0a4a2667dc115ca7 marxin at gcc dot gnu.org
2022-09-14 12:51 ` cvs-commit at gcc dot gnu.org
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