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[Bug c++/63262] [4.9.2] ICE including math.h on darwin
- From: "fxcoudert at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sun, 02 Nov 2014 22:51:25 +0000
- Subject: [Bug c++/63262] [4.9.2] ICE including math.h on darwin
- Auto-submitted: auto-generated
- References: <bug-63262-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63262
--- Comment #14 from Francois-Xavier Coudert <fxcoudert at gcc dot gnu.org> ---
(In reply to karsten from comment #13)
> libgmp.10.dylib`__gmpn_popcount + 26, queue = 'com.apple.main-thread', stop
> reason = EXC_BAD_INSTRUCTION (code=EXC_I386_INVOP, subcode=0x0)
> * frame #0: 0x00000001415c747a libgmp.10.dylib`__gmpn_popcount + 26
> frame #1: 0x0000000141578f67 libmpfr.4.dylib`parsed_string_to_mpfr + 2567
> frame #2: 0x000000014157847b libmpfr.4.dylib`mpfr_strtofr + 2011
> frame #3: 0x00000001006f4d11 cc1plus`real_from_string(real_value*, char
> const*) + 817
> frame #4: 0x00000001006f5741 cc1plus`real_from_string3(real_value*, char
> const*, machine_mode) + 33
So the segfault happens in GMP. I also confirm that I don't see it after doing
a clean build of the 4.9.2 sources you linked, which makes sense because I do
my builds with an older GMP version.
What I would advise is building GMP without too much optimization, or with no
optimization at all, and see if it fixes your issue.
PS: the attached short testcase might be useful. Could you confirm that it does
trigger the ICE (internal compiler error)?