https://gcc.gnu.org/bugzilla/show_bug.cgi?id=119366
Bug ID: 119366
Summary: [15 Regression] ICE: "free(): invalid pointer" in
diagnostic_context::finish() (diagnostic.cc:427) with
-Wfatal-errors
Product: gcc
Version: 15.0
Status: UNCONFIRMED
Keywords: error-recovery
Severity: normal
Priority: P3
Component: c
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-gnux32
Created attachment 60815
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=60815&action=edit
reduced testcase
Compiler output:
$ x86_64-pc-linux-gnu-gcc -mx32 -Wfatal-errors testcase.c -wrapper
valgrind,-q,--num-callers=100
testcase.c:1:1: error: X32 does not support 'ms_abi' attribute
1 | void foo() __attribute__((__ms_abi__));
| ^~~~
compilation terminated due to -Wfatal-errors.
==4219== Invalid free() / delete / delete[] / realloc()
==4219== at 0x484AB49: operator delete(void*, unsigned long)
(vg_replace_malloc.c:1181)
==4219== by 0x2DE1305: diagnostic_context::finish() (diagnostic.cc:427)
==4219== by 0x2DE14A1: diagnostic_context::action_after_output(diagnostic_t)
(diagnostic.cc:912)
==4219== by 0x2DE1A27:
diagnostic_context::report_diagnostic(diagnostic_info*) (diagnostic.cc:1508)
==4219== by 0x2DE1C6D: diagnostic_context::diagnostic_impl(rich_location*,
diagnostic_metadata const*, diagnostic_option_id, char const*, __va_list_tag
(*) [1], diagnostic_t) (diagnostic.cc:1614)
==4219== by 0x2DF67E1: error(char const*, ...)
(diagnostic-global-context.cc:397)
==4219== by 0x1AD731B: ix86_function_type_abi(tree_node const*)
(i386.cc:1616)
==4219== by 0x1AD8712: ix86_function_regparm (i386.cc:1205)
==4219== by 0x1AD8712: ix86_comp_type_attributes(tree_node const*, tree_node
const*) (i386.cc:1180)
==4219== by 0xF08BB4: comp_type_attributes(tree_node const*, tree_node
const*) (attribs.cc:1552)
==4219== by 0xF08DAA: build_type_attribute_qual_variant(tree_node*,
tree_node*, int) (attribs.cc:1354)
==4219== by 0xF0BE4C: decl_attributes(tree_node**, tree_node*, int,
tree_node*) (attribs.cc:1007)
==4219== by 0xF11E8A: c_decl_attributes(tree_node**, tree_node*, int) [clone
.constprop.0] [clone .isra.0] (c-decl.cc:5558)
==4219== by 0xF2C847: start_decl(c_declarator*, c_declspecs*, bool,
tree_node*, bool, unsigned long*) (c-decl.cc:5704)
==4219== by 0xF79700: c_parser_declaration_or_fndef(c_parser*, bool, bool,
bool, bool, bool, bool, tree_node**, vec<c_token, va_heap, vl_ptr>*, bool,
tree_node*, oacc_routine_data*, bool*) (c-parser.cc:2907)
==4219== by 0xFB8EB9: c_parser_external_declaration(c_parser*)
(c-parser.cc:2105)
==4219== by 0xFB9D30: c_parser_translation_unit (c-parser.cc:1959)
==4219== by 0xFB9D30: c_parse_file() (c-parser.cc:29804)
==4219== by 0x10395A1: c_common_parse_file() (c-opts.cc:1379)
==4219== by 0x16919FD: compile_file() (toplev.cc:452)
==4219== by 0xF031BF: do_compile (toplev.cc:2208)
==4219== by 0xF031BF: toplev::main(int, char**) (toplev.cc:2371)
==4219== by 0xF04A0D: main (main.cc:39)
==4219== Address 0x1ffeffe9c0 is on thread 1's stack
==4219== in frame #10, created by decl_attributes(tree_node**, tree_node*,
int, tree_node*) (attribs.cc:626)
==4219==
$ 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-20250319113901-r15-8284-gd0110185eb78f1-checking-yes-rtl-df-extra-nobootstrap-amd64/bin/../libexec/gcc/x86_64-pc-linux-gnu/15.0.1/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-20250319113901-r15-8284-gd0110185eb78f1-checking-yes-rtl-df-extra-nobootstrap-amd64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 15.0.1 20250319 (experimental) (GCC)
