[Bug objc++/66504] ICE using C++ exceptions in Objective-C++

[egallager at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66504

Eric Gallager <egallager at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2017-07-23
                 CC|                            |egallager at gcc dot gnu.org
     Ever confirmed|0                           |1
      Known to fail|                            |8.0

--- Comment #1 from Eric Gallager <egallager at gcc dot gnu.org> ---
Confirmed; message I get now with trunk is:

$ /usr/local/bin/g++ -c 35756.mm
during GIMPLE pass: eh
35756.mm: In function ‘void Problem()’:
35756.mm:1:6: internal compiler error: in objc_eh_runtime_type, at
objc/objc-next-runtime-abi-01.c:2791
 void Problem()
      ^~~~~~~
libbacktrace could not find executable to open
Please submit a full bug report,
with preprocessed source if appropriate.
See <https://gcc.gnu.org/bugs/> for instructions.

Attaching gdb to get a backtrace, I get:

Breakpoint 2, 0x00fb3c74 in internal_error ()
(gdb) bt
#0  0x00fb3c74 in internal_error ()
warning: .o file
"/private/var/root/gcc-git/my_oddly_named_builddir/./mpfr/src/.libs/libmpfr.a(mpfr-gmp.o)"
more recent than executable timestamp
#1  0x014e9561 in fancy_abort ()
#2  0x012db91c in objc_eh_runtime_type ()
#3  0x007b571b in add_type_for_runtime ()
#4  0x007b57ab in gen_eh_region_catch ()
#5  0x00c676c1 in lower_eh_constructs_1 ()
#6  0x00c68deb in (anonymous namespace)::pass_lower_eh::execute ()
#7  0x00af3550 in execute_one_pass ()
#8  0x00af3eb9 in execute_pass_list_1 ()
#9  0x00af3f0e in execute_pass_list ()
#10 0x006bed49 in cgraph_node::analyze ()
#11 0x006c1d3d in analyze_functions ()
#12 0x006c2c42 in symbol_table::finalize_compilation_unit ()
#13 0x00bee32a in compile_file ()
#14 0x01b02420 in toplev::main ()
#15 0x01b03a34 in main ()

I'll have to rebuild with debug info to get a better backtrace.