https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97867
--- Comment #2 from Martin Sebor <msebor at gcc dot gnu.org> --- The backtrace from test-combination.c.exe shows the SEGV does happen in thunk_info::release (). Ditto for test-functions.c.exe. Program received signal SIGSEGV, Segmentation fault. 0x00007ffff5d74153 in free () from /lib64/libc.so.6 Missing separate debuginfos, use: dnf debuginfo-install gmp-6.1.2-9.fc29.x86_64 libmpc-1.1.0-2.fc29.x86_64 mpfr-3.1.6-2.fc29.x86_64 (gdb) bt #0 0x00007ffff5d74153 in free () from /lib64/libc.so.6 #1 0x00007ffff654bd62 in thunk_info::release () at /ssd/test/src/gcc/dump-type-attr/gcc/cgraph.c:4024 #2 cgraph_c_finalize () at /ssd/test/src/gcc/dump-type-attr/gcc/cgraph.c:4017 #3 0x00007ffff69b2229 in toplev::finalize (this=this@entry=0x7fffffffdd4e) at /ssd/test/src/gcc/dump-type-attr/gcc/toplev.c:2508 #4 0x00007ffff64a31b0 in gcc::jit::playback::context::compile (this=this@entry=0x7fffffffdde0) at /ssd/test/src/gcc/dump-type-attr/gcc/jit/jit-playback.c:2124 #5 0x00007ffff6498bc6 in gcc::jit::recording::context::compile (this=this@entry=0x47b3f0) at /ssd/test/src/gcc/dump-type-attr/gcc/jit/jit-recording.c:1397 #6 0x00007ffff648a3bb in gcc_jit_context_compile (ctxt=0x47b3f0) at /ssd/test/src/gcc/dump-type-attr/gcc/jit/libgccjit.c:2827 #7 0x000000000041be40 in test_jit ( argv0=0x7fffffffe2fe "/ssd/test/build/gcc-gcc-dump-type-attr/gcc/testsuite/jit/test-combination.c.exe", user_data=0x0) at /ssd/test/src/gcc/dump-type-attr/gcc/testsuite/jit.dg/harness.h:371 #8 0x000000000041bf30 in main (argc=1, argv=0x7fffffffdfe8) at /ssd/test/src/gcc/dump-type-attr/gcc/testsuite/jit.dg/harness.h:419