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* [Bug ipa/114599] New: ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage
@ 2024-04-05 4:19 zsojka at seznam dot cz
2024-04-05 8:02 ` [Bug gcov-profile/114599] [14 Regression] " rguenth at gcc dot gnu.org
` (8 more replies)
0 siblings, 9 replies; 10+ messages in thread
From: zsojka at seznam dot cz @ 2024-04-05 4:19 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114599
Bug ID: 114599
Summary: ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int)
(bitmap.cc:975) with -O2 -fcondition-coverage
Product: gcc
Version: 14.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: ipa
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: x86_64-pc-linux-gnu
Created attachment 57884
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57884&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -O2 -fcondition-coverage testcase.c -wrapper
valgrind,-q
==26792== Invalid write of size 4
==26792== at 0xF3D16E: bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975)
==26792== by 0xFB61F3: symtab_node::check_ifunc_callee_symtab_nodes()
(symtab.cc:1449)
==26792== by 0xFCF454: symbol_table::compile() [clone .part.0]
(cgraphunit.cc:2320)
==26792== by 0xFD2797: compile (cgraphunit.cc:2315)
==26792== by 0xFD2797: symbol_table::finalize_compilation_unit()
(cgraphunit.cc:2589)
==26792== by 0x1513631: compile_file() (toplev.cc:476)
==26792== by 0xDE845B: do_compile (toplev.cc:2154)
==26792== by 0xDE845B: toplev::main(int, char**) (toplev.cc:2310)
==26792== by 0xDE9C3A: main (main.cc:39)
==26792== Address 0x527a330 is 32 bytes inside a block of size 65,536 alloc'd
==26792== at 0x483E804: malloc (vg_replace_malloc.c:442)
==26792== by 0x2AA5B4B: xmalloc (xmalloc.c:149)
==26792== by 0x2AA2384: call_chunkfun (obstack.c:94)
==26792== by 0x2AA2384: _obstack_begin_worker (obstack.c:141)
==26792== by 0xFD0EDE: analyze_functions(bool) (cgraphunit.cc:1172)
==26792== by 0xFD272D: symbol_table::finalize_compilation_unit()
(cgraphunit.cc:2560)
==26792== by 0x1513631: compile_file() (toplev.cc:476)
==26792== by 0xDE845B: do_compile (toplev.cc:2154)
==26792== by 0xDE845B: toplev::main(int, char**) (toplev.cc:2310)
==26792== by 0xDE9C3A: main (main.cc:39)
...
during IPA pass: profile
testcase.c: In function 'do_all_fn_LHASH_DOALL_ARG_arg2':
testcase.c:16:1: internal compiler error: Segmentation fault
16 | }
| ^
0x151314f crash_signal
/repo/gcc-trunk/gcc/toplev.cc:319
0x15fba9a hash_table_mod1(unsigned int, unsigned int)
/repo/gcc-trunk/gcc/hash-table.h:344
0x15fba9a hash_table<hash_map<gcond*, unsigned int,
simple_hashmap_traits<default_hash_traits<gcond*>, unsigned int> >::hash_entry,
false, xcallocator>::find_with_hash(gcond* const&, unsigned int)
/repo/gcc-trunk/gcc/hash-table.h:985
0x15f9c9b hash_map<gcond*, unsigned int,
simple_hashmap_traits<default_hash_traits<gcond*>, unsigned int> >::get(gcond*
const&)
/repo/gcc-trunk/gcc/hash-map.h:191
0x15f9c9b condition_uid
/repo/gcc-trunk/gcc/tree-profile.cc:370
0x15f9c9b find_conditions(function*)
/repo/gcc-trunk/gcc/tree-profile.cc:877
0x140dc23 branch_prob(bool)
/repo/gcc-trunk/gcc/profile.cc:1549
0x15f92f4 tree_profiling
/repo/gcc-trunk/gcc/tree-profile.cc:1917
0x15f92f4 execute
/repo/gcc-trunk/gcc/tree-profile.cc:2046
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
$ x86_64-pc-linux-gnu-gcc -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-amd64/bin/x86_64-pc-linux-gnu-gcc
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r14-9799-20240405035546-g4c8b3600c48-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/14.0.1/lto-wrapper
Target: x86_64-pc-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--disable-bootstrap --with-cloog --with-ppl --with-isl
--build=x86_64-pc-linux-gnu --host=x86_64-pc-linux-gnu
--target=x86_64-pc-linux-gnu --with-ld=/usr/bin/x86_64-pc-linux-gnu-ld
--with-as=/usr/bin/x86_64-pc-linux-gnu-as --enable-libsanitizer
--disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r14-9799-20240405035546-g4c8b3600c48-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 14.0.1 20240405 (experimental) (GCC)
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug gcov-profile/114599] [14 Regression] ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage
2024-04-05 4:19 [Bug ipa/114599] New: ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage zsojka at seznam dot cz
@ 2024-04-05 8:02 ` rguenth at gcc dot gnu.org
2024-04-05 8:04 ` rguenth at gcc dot gnu.org
` (7 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu.org @ 2024-04-05 8:02 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114599
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |14.0
Priority|P3 |P1
CC| |hjl at gcc dot gnu.org
Summary|ICE: SIGSEGV in |[14 Regression] ICE:
|bitmap_set_bit(bitmap_head* |SIGSEGV in
|, int) (bitmap.cc:975) with |bitmap_set_bit(bitmap_head*
|-O2 -fcondition-coverage |, int) (bitmap.cc:975) with
| |-O2 -fcondition-coverage
--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
static auto_bitmap ifunc_ref_map;
doesn't work - this gets allocated from the bitmap obstack which gets
repeatedly cleared. It looks like you may want to use a GC allocated bitmap
static GTY(()) bitmap ifunc_ref_map;
and GC allocate it when the property is computed.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug gcov-profile/114599] [14 Regression] ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage
2024-04-05 4:19 [Bug ipa/114599] New: ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage zsojka at seznam dot cz
2024-04-05 8:02 ` [Bug gcov-profile/114599] [14 Regression] " rguenth at gcc dot gnu.org
@ 2024-04-05 8:04 ` rguenth at gcc dot gnu.org
2024-04-05 9:13 ` cvs-commit at gcc dot gnu.org
` (6 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu.org @ 2024-04-05 8:04 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114599
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Assignee|unassigned at gcc dot gnu.org |rguenth at gcc dot gnu.org
Last reconfirmed| |2024-04-05
Ever confirmed|0 |1
--- Comment #2 from Richard Biener <rguenth at gcc dot gnu.org> ---
Or even non-GC, it seems the bitmap is short-lived. Just use BITMAP_ALLOC ().
I'll fix it.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug gcov-profile/114599] [14 Regression] ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage
2024-04-05 4:19 [Bug ipa/114599] New: ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage zsojka at seznam dot cz
2024-04-05 8:02 ` [Bug gcov-profile/114599] [14 Regression] " rguenth at gcc dot gnu.org
2024-04-05 8:04 ` rguenth at gcc dot gnu.org
@ 2024-04-05 9:13 ` cvs-commit at gcc dot gnu.org
2024-04-05 9:13 ` rguenth at gcc dot gnu.org
` (5 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2024-04-05 9:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114599
--- Comment #3 from GCC 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:9ab8fdfeef5b1a47b358e08a98177b2fad65fed9
commit r14-9803-g9ab8fdfeef5b1a47b358e08a98177b2fad65fed9
Author: Richard Biener <rguenther@suse.de>
Date: Fri Apr 5 10:16:41 2024 +0200
middle-end/114599 - fix bitmap allocation for
check_ifunc_callee_symtab_nodes
There's no default bitmap obstack during global CTORs, so allocate the
bitmap locally.
PR middle-end/114599
PR gcov-profile/114115
* symtab.cc (ifunc_ref_map): Do not use auto_bitmap.
(is_caller_ifunc_resolver): Optimize bitmap_bit_p/bitmap_set_bit
pair.
(symtab_node::check_ifunc_callee_symtab_nodes): Properly
allocate ifunc_ref_map here.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug gcov-profile/114599] [14 Regression] ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage
2024-04-05 4:19 [Bug ipa/114599] New: ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage zsojka at seznam dot cz
` (2 preceding siblings ...)
2024-04-05 9:13 ` cvs-commit at gcc dot gnu.org
@ 2024-04-05 9:13 ` rguenth at gcc dot gnu.org
2024-04-05 13:42 ` hjl.tools at gmail dot com
` (4 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu.org @ 2024-04-05 9:13 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114599
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |FIXED
Status|ASSIGNED |RESOLVED
--- Comment #4 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug gcov-profile/114599] [14 Regression] ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage
2024-04-05 4:19 [Bug ipa/114599] New: ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage zsojka at seznam dot cz
` (3 preceding siblings ...)
2024-04-05 9:13 ` rguenth at gcc dot gnu.org
@ 2024-04-05 13:42 ` hjl.tools at gmail dot com
2024-04-05 13:43 ` hjl.tools at gmail dot com
` (3 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: hjl.tools at gmail dot com @ 2024-04-05 13:42 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114599
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |hjl.tools at gmail dot com
--- Comment #5 from H.J. Lu <hjl.tools at gmail dot com> ---
Created attachment 57888
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57888&action=edit
A testcase
The bug isn't fixed:
[hjl@gnu-tgl-3 gcc]$
/export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/tools-build/gcc-debug/build-x86_64-linux/gcc/
/export/gnu/import/git/sources/gcc/gcc/testsuite/gcc.misc-tests/gcov-24.c
-fdiagnostics-plain-output -O2 -fcondition-coverage -S -o gcov-24.s
during IPA pass: profile
/export/gnu/import/git/sources/gcc/gcc/testsuite/gcc.misc-tests/gcov-24.c: In
function ‘do_all_fn_LHASH_DOALL_ARG_arg2’:
/export/gnu/import/git/sources/gcc/gcc/testsuite/gcc.misc-tests/gcov-24.c:20:1:
internal compiler error: Segmentation fault
0x16ccfa6 crash_signal
/export/gnu/import/git/sources/gcc/gcc/toplev.cc:319
0x180579d hash_table<hash_map<gcond*, unsigned int,
simple_hashmap_traits<default_hash_traits<gcond*>, unsigned int> >::hash_entry,
false, xcallocator>::find_with_hash(gcond* const&, unsigned int)
/export/gnu/import/git/sources/gcc/gcc/hash-table.h:983
0x1804c87 hash_map<gcond*, unsigned int,
simple_hashmap_traits<default_hash_traits<gcond*>, unsigned int> >::get(gcond*
const&)
/export/gnu/import/git/sources/gcc/gcc/hash-map.h:191
0x17fdbf8 condition_uid
/export/gnu/import/git/sources/gcc/gcc/tree-profile.cc:370
0x17ff420 find_conditions(function*)
/export/gnu/import/git/sources/gcc/gcc/tree-profile.cc:877
0x158b963 branch_prob(bool)
/export/gnu/import/git/sources/gcc/gcc/profile.cc:1549
0x1802b86 tree_profiling
/export/gnu/import/git/sources/gcc/gcc/tree-profile.cc:1917
0x1803210 execute
/export/gnu/import/git/sources/gcc/gcc/tree-profile.cc:2046
Please submit a full bug report, with preprocessed source (by using
-freport-bug).
Please include the complete backtrace with any bug report.
See <https://gcc.gnu.org/bugs/> for instructions.
[hjl@gnu-tgl-3 gcc]$
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug gcov-profile/114599] [14 Regression] ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage
2024-04-05 4:19 [Bug ipa/114599] New: ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage zsojka at seznam dot cz
` (4 preceding siblings ...)
2024-04-05 13:42 ` hjl.tools at gmail dot com
@ 2024-04-05 13:43 ` hjl.tools at gmail dot com
2024-04-06 11:11 ` cvs-commit at gcc dot gnu.org
` (2 subsequent siblings)
8 siblings, 0 replies; 10+ messages in thread
From: hjl.tools at gmail dot com @ 2024-04-05 13:43 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114599
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|RESOLVED |REOPENED
Resolution|FIXED |---
--- Comment #6 from H.J. Lu <hjl.tools at gmail dot com> ---
Not fixed.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug gcov-profile/114599] [14 Regression] ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage
2024-04-05 4:19 [Bug ipa/114599] New: ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage zsojka at seznam dot cz
` (5 preceding siblings ...)
2024-04-05 13:43 ` hjl.tools at gmail dot com
@ 2024-04-06 11:11 ` cvs-commit at gcc dot gnu.org
2024-04-08 6:55 ` rguenth at gcc dot gnu.org
2024-04-09 7:58 ` cvs-commit at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2024-04-06 11:11 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114599
--- Comment #7 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by J?rgen Kvalsvik <jkv@gcc.gnu.org>:
https://gcc.gnu.org/g:c6892a430a9752aea167265621c3ae7a3e11159f
commit r14-9819-gc6892a430a9752aea167265621c3ae7a3e11159f
Author: Jørgen Kvalsvik <j@lambda.is>
Date: Fri Apr 5 21:42:07 2024 +0200
Copy condition->expr map when inlining [PR114599]
When a function is tree-inlined, copy the condition -> expression mapping
from the inlined function into the caller, shifted so uids are not
mixed. Tree inlining was always problematic under condition coverage -
either through a nullptr dereference (triggered by the test case), or
through quietly mixing caller conditions with the callee conditions.
PR middle-end/114599
gcc/ChangeLog:
* tree-inline.cc (add_local_variables): Copy cond_uids mappings.
gcc/testsuite/ChangeLog:
* gcc.misc-tests/gcov-pr114599.c: New test.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug gcov-profile/114599] [14 Regression] ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage
2024-04-05 4:19 [Bug ipa/114599] New: ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage zsojka at seznam dot cz
` (6 preceding siblings ...)
2024-04-06 11:11 ` cvs-commit at gcc dot gnu.org
@ 2024-04-08 6:55 ` rguenth at gcc dot gnu.org
2024-04-09 7:58 ` cvs-commit at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu.org @ 2024-04-08 6:55 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114599
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |RESOLVED
Resolution|--- |FIXED
--- Comment #8 from Richard Biener <rguenth at gcc dot gnu.org> ---
Fixed.
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug gcov-profile/114599] [14 Regression] ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage
2024-04-05 4:19 [Bug ipa/114599] New: ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage zsojka at seznam dot cz
` (7 preceding siblings ...)
2024-04-08 6:55 ` rguenth at gcc dot gnu.org
@ 2024-04-09 7:58 ` cvs-commit at gcc dot gnu.org
8 siblings, 0 replies; 10+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2024-04-09 7:58 UTC (permalink / raw)
To: gcc-bugs
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=114599
--- Comment #9 from GCC Commits <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by J?rgen Kvalsvik <jkv@gcc.gnu.org>:
https://gcc.gnu.org/g:2daeb89d6f025d6daf7e560575863b3280120be8
commit r14-9863-g2daeb89d6f025d6daf7e560575863b3280120be8
Author: Jørgen Kvalsvik <j@lambda.is>
Date: Mon Apr 8 09:28:27 2024 +0200
Add tree-inlined gconds to caller cond->expr map
Properly add the condition -> expression mapping of inlined gconds from
the caller into the callee map. This is a fix for PR114599 that works
beyond fixing the segfault, as the previous fixed copied references to
the source gconds, not the deep copied ones that end up in the calle
body.
The new tests checks this, both in the case of a calle without
conditions (which triggered the segfault), and a test that shows that
conditions are properly mapped, and not mixed.
PR middle-end/114599
gcc/ChangeLog:
* tree-inline.cc (copy_bb): Copy cond_uids into callee.
(prepend_lexical_block): Remove outdated comment.
(add_local_variables): Remove bad cond_uids copy.
gcc/testsuite/ChangeLog:
* gcc.misc-tests/gcov-19.c: New test.
^ permalink raw reply [flat|nested] 10+ messages in thread
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2024-04-05 4:19 [Bug ipa/114599] New: ICE: SIGSEGV in bitmap_set_bit(bitmap_head*, int) (bitmap.cc:975) with -O2 -fcondition-coverage zsojka at seznam dot cz
2024-04-05 8:02 ` [Bug gcov-profile/114599] [14 Regression] " rguenth at gcc dot gnu.org
2024-04-05 8:04 ` rguenth at gcc dot gnu.org
2024-04-05 9:13 ` cvs-commit at gcc dot gnu.org
2024-04-05 9:13 ` rguenth at gcc dot gnu.org
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2024-04-05 13:43 ` hjl.tools at gmail dot com
2024-04-06 11:11 ` cvs-commit at gcc dot gnu.org
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