https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104473
Bug ID: 104473
Summary: [12 Regression] ICE: free(): invalid pointer with
-march=armv8.7-a or -march=armv8.8-a for g++
Product: gcc
Version: 12.0
Status: UNCONFIRMED
Keywords: ice-on-valid-code
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: zsojka at seznam dot cz
Target Milestone: ---
Host: x86_64-pc-linux-gnu
Target: aarch64-unknown-linux-gnu
Compiler output: (empty testcase)
$ echo > testcase.C
$ aarch64-unknown-linux-gnu-g++ -march=armv8.7-a testcase.C
free(): invalid pointer
testcase.C:1: internal compiler error: Aborted
0x143819f crash_signal
/repo/gcc-trunk/gcc/toplev.cc:322
0x2272914 diagnostic_finish(diagnostic_context*)
/repo/gcc-trunk/gcc/diagnostic.cc:321
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.
$ aarch64-unknown-linux-gnu-g++ -march=armv8.8-a testcase.C -wrapper
valgrind,-q
==30775== Invalid write of size 8
==30775== at 0xBD0018: pushclass(tree_node*) (class.cc:8069)
==30775== by 0xDD7C12: begin_class_definition(tree_node*)
(semantics.cc:3467)
==30775== by 0xC5EDF5: cxx_simulate_record_decl(unsigned int, char const*,
array_slice<tree_node* const>) (decl.cc:16689)
==30775== by 0x18529AF: aarch64_init_ls64_builtins_types
(aarch64-builtins.cc:1610)
==30775== by 0x18529AF: aarch64_init_ls64_builtins
(aarch64-builtins.cc:1622)
==30775== by 0x18529AF: aarch64_general_init_builtins()
(aarch64-builtins.cc:1735)
==30775== by 0x179D458: aarch64_init_builtins() (aarch64.cc:14335)
==30775== by 0xE6641D: c_define_builtins (c-common.cc:4221)
==30775== by 0xE6641D: c_common_nodes_and_builtins() (c-common.cc:4708)
==30775== by 0xC5D185: cxx_init_decl_processing() (decl.cc:4452)
==30775== by 0xCA45F9: cxx_init() (lex.cc:328)
==30775== by 0xBA1293: lang_dependent_init (toplev.cc:1848)
==30775== by 0xBA1293: do_compile (toplev.cc:2143)
==30775== by 0xBA1293: toplev::main(int, char**) (toplev.cc:2310)
==30775== by 0xBA32BE: main (main.cc:39)
==30775== Address 0x514bc70 is 0 bytes inside a block of size 1 alloc'd
==30775== at 0x483F835: malloc (in
/usr/libexec/valgrind/vgpreload_memcheck-amd64-linux.so)
==30775== by 0x23043D7: xrealloc (xmalloc.c:179)
==30775== by 0xBD018F: pushclass(tree_node*) (class.cc:8063)
==30775== by 0xDD7C12: begin_class_definition(tree_node*)
(semantics.cc:3467)
==30775== by 0xC5EDF5: cxx_simulate_record_decl(unsigned int, char const*,
array_slice<tree_node* const>) (decl.cc:16689)
==30775== by 0x18529AF: aarch64_init_ls64_builtins_types
(aarch64-builtins.cc:1610)
==30775== by 0x18529AF: aarch64_init_ls64_builtins
(aarch64-builtins.cc:1622)
==30775== by 0x18529AF: aarch64_general_init_builtins()
(aarch64-builtins.cc:1735)
==30775== by 0x179D458: aarch64_init_builtins() (aarch64.cc:14335)
==30775== by 0xE6641D: c_define_builtins (c-common.cc:4221)
==30775== by 0xE6641D: c_common_nodes_and_builtins() (c-common.cc:4708)
==30775== by 0xC5D185: cxx_init_decl_processing() (decl.cc:4452)
==30775== by 0xCA45F9: cxx_init() (lex.cc:328)
==30775== by 0xBA1293: lang_dependent_init (toplev.cc:1848)
==30775== by 0xBA1293: do_compile (toplev.cc:2143)
==30775== by 0xBA1293: toplev::main(int, char**) (toplev.cc:2310)
==30775== by 0xBA32BE: main (main.cc:39)
...
$ aarch64-unknown-linux-gnu-g++ -march=armv8.9-a testcase.C
cc1plus: error: unknown value 'armv8.9-a' for '-march'
cc1plus: note: valid arguments are: armv8-a armv8.1-a armv8.2-a armv8.3-a
armv8.4-a armv8.5-a armv8.6-a armv8.7-a armv8.8-a armv8-r armv9-a; did you mean
'armv8.1-a'?
$ aarch64-unknown-linux-gnu-g++ -v
Using built-in specs.
COLLECT_GCC=/repo/gcc-trunk/binary-latest-aarch64/bin/aarch64-unknown-linux-gnu-g++
COLLECT_LTO_WRAPPER=/repo/gcc-trunk/binary-trunk-r12-7143-20220209111047-ged3fea09b18-checking-yes-rtl-df-extra-aarch64/bin/../libexec/gcc/aarch64-unknown-linux-gnu/12.0.1/lto-wrapper
Target: aarch64-unknown-linux-gnu
Configured with: /repo/gcc-trunk//configure --enable-languages=c,c++
--enable-valgrind-annotations --disable-nls --enable-checking=yes,rtl,df,extra
--with-cloog --with-ppl --with-isl
--with-sysroot=/usr/aarch64-unknown-linux-gnu --build=x86_64-pc-linux-gnu
--host=x86_64-pc-linux-gnu --target=aarch64-unknown-linux-gnu
--with-ld=/usr/bin/aarch64-unknown-linux-gnu-ld
--with-as=/usr/bin/aarch64-unknown-linux-gnu-as --disable-libstdcxx-pch
--prefix=/repo/gcc-trunk//binary-trunk-r12-7143-20220209111047-ged3fea09b18-checking-yes-rtl-df-extra-aarch64
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 12.0.1 20220209 (experimental) (GCC)
