https://gcc.gnu.org/bugzilla/show_bug.cgi?id=117047
--- Comment #31 from Sam James <sjames at gcc dot gnu.org> ---
(In reply to Sam James from comment #30)
> Created attachment 60601 [details]
> emacs-bug.sh
With this, running the testsuite, I get:
$ rg ^FAIL gcc/testsuite/jit/jit.sum
77:FAIL: did not find a generated reproducer: test-asm.cc.exe.reproducer.c
2290:FAIL: test-asm.cc.exe killed: SIGABRT SIGABRT
2310:FAIL: test-bitcast.c.exe killed: SIGSEGV segmentation violation
2541:FAIL: test-combination.c.exe killed: SIGSEGV segmentation violation
3056:FAIL: test-error-bad-bitcast.c.exe killed: SIGSEGV segmentation violation
3058:FAIL: test-error-bad-bitcast2.c.exe killed: SIGSEGV segmentation violation
3946:FAIL: test-error-impossible-must-tail-call.c.exe iteration 1 of 5:
verify_code: actual: "cannot tail-call: memory reference or volatile after
call" != expected: "cannot tail-call: callee returns a structure"
3948:FAIL: test-error-impossible-must-tail-call.c.exe killed: SIGABRT SIGABRT
5926:FAIL: test-ggc-bugfix.c.exe iteration 1 of 5: verify_code: result is NULL
5927:FAIL: test-ggc-bugfix.c.exe killed: SIGABRT SIGABRT
7651:FAIL: test-threads.c.exe killed: SIGSEGV segmentation violation
One or two of those seem -D_GLIBCXX_ASSERTIONS related.
But picking on another...
```
$ gdb --args ./testsuite/jit4/test-combination.c.exe
[...]
PASSED: test-combination.c.exe iteration 1 of 5:
make_calc_discriminant: actual: "q->b * q->b - (double)4 * q->a * q->c" ==
expected: "q->b * q->b - (double)4 * q->a * q->c"
PASSED: test-combination.c.exe iteration 1 of 5:
create_code_pr95306_builtin_types: gcc_jit_context_get_builtin_function (ctxt,
"__atomic_load") is non-null
PASSED: test-combination.c.exe iteration 1 of 5:
create_code_pr95306_builtin_types: gcc_jit_context_get_builtin_function (ctxt,
"__builtin_memcpy") is non-null
PASSED: test-combination.c.exe iteration 1 of 5:
create_code_pr95306_builtin_types: gcc_jit_context_get_builtin_function (ctxt,
"__builtin_sadd_overflow") is non-null
NOTE: test-combination.c.exe iteration 1 of 5: writing reproducer to
/tmp/build/gcc/testsuite/jit4/test-combination.c.exe.reproducer.c
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff52b7143 in gcc::jit::wrapper_finalizer(void*) () from
./libgccjit.so.0
(gdb) bt
#0 0x00007ffff52b7143 in gcc::jit::wrapper_finalizer(void*) () from
./libgccjit.so.0
#1 0x00007ffff52e5887 in ggc_collect(ggc_collect) [clone .localalias] () from
./libgccjit.so.0
#2 0x00007ffff538d997 in cgraph_node::finalize_function(tree_node*, bool)
[clone .localalias] () from ./libgccjit.so.0
#3 0x00007ffff52b8c3d in gcc::jit::playback::function::postprocess() [clone
.localalias] () from ./libgccjit.so.0
#4 0x00007ffff52ba13e in gcc::jit::playback::context::replay() () from
./libgccjit.so.0
#5 0x00007ffff5943f1a in compile_file() () from ./libgccjit.so.0
#6 0x00007ffff527e501 in toplev::main(int, char**) () from ./libgccjit.so.0
#7 0x00007ffff52bcf1c in gcc::jit::playback::context::compile() () from
./libgccjit.so.0
#8 0x00007ffff52ac828 in gcc::jit::recording::context::compile() () from
./libgccjit.so.0
#9 0x00007ffff5297526 in gcc_jit_context_compile () from ./libgccjit.so.0
#10 0x00005555555853df in test_jit (argv0=0x7fffffffdbd3
"/tmp/build/gcc/testsuite/jit4/test-combination.c.exe", user_data=0x0) at
/home/sam/git/gcc/gcc/testsuite/jit.dg/harness.h:390
#11 0x00005555555854d6 in main (argc=1, argv=0x7fffffffd898) at
/home/sam/git/gcc/gcc/testsuite/jit.dg/harness.h:438
```
Bingo!
