[Bug target/104473] New: [12 Regression] ICE: free(): invalid pointer with -march=armv8.7-a or -march=armv8.8-a for g++

[Bug target/104473] New: [12 Regression] ICE: free(): invalid pointer with -march=armv8.7-a or -march=armv8.8-a for g++

[zsojka at seznam dot cz]

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)

[Bug target/104473] [12 Regression] ICE: free(): invalid pointer with -march=armv8.7-a or -march=armv8.8-a for g++

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104473

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|---                         |DUPLICATE

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
Dup of bug 104409. The problem is LS64 types are not being done correctly.

*** This bug has been marked as a duplicate of bug 104409 ***