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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
end of thread, other threads:[~2022-09-14 12:52 UTC | newest] Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 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
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