https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87294
Bug ID: 87294
Summary: [8/9 Regression] dwarf-3 generation fails with ICE
Product: gcc
Version: 8.2.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: debug
Assignee: unassigned at gcc dot gnu.org
Reporter: daniel.f.starke at freenet dot de
Target Milestone: ---
Created attachment 44690
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44690&action=edit
test case
Using GCC version 8.2.0 in mingw-w64 compiled with the following configuration
fails on the attached test case.
Configured with: ../../src/gcc-8.2.0/configure --host=x86_64-w64-mingw32
--enable-languages=c,c++ --enable-seh-exceptions --enable-threads=posix
--disable-nls --disable-shared --enable-static --enable-fully-dynamic-string
--enable-lto --enable-plugins --enable-libgomp --with-dwarf2
--enable-mingw-wildcard=platform --disable-win32-registry
--enable-version-specific-runtime-libs --prefix=/mingw64-64
--with-sysroot=/mingw64-64 --target=x86_64-w64-mingw32 --enable-targets=all
--enable-checking=release --with-gmp=/usr/new-gcc/lib/gmp-5.0.5
--with-mpfr=/usr/new-gcc/lib/mpfr-2.4.2 --with-mpc=/usr/new-gcc/lib/mpc-0.9
--with-isl=/usr/new-gcc/lib/isl-0.18 --with-cloog=/usr/new-gcc/lib/cloog-0.18.4
--with-host-libstdcxx='-lstdc++ -lsupc++' --disable-cloog-version-check
--enable-cloog-backend=isl
Thread model: posix
The command-line
g++ -Og -gdwarf-3 -fno-omit-frame-pointer -c a.cpp -o a.o
returns
during RTL pass: final
a.cpp: In function 'boost::_bi::bind_t<R, R (*)(B1, B2, B3), typename
boost::_bi::list_av_3<A1, A2, A3>::type> boost::bind(R (*)(B1, B2, B3), A1, A2,
A3) [with R = int; B1 = void*; B2 = const unsigned char*; B3 = unsigned int; A1
= boost::arg<1>; A2 = boost::arg<2>; A3 = boost::arg<3>]':
a.cpp:99:3: internal compiler error: in based_loc_descr, at
dwarf2out.c:14272
}
^
libbacktrace could not find executable to open
Removing -gdwarf-3 or -fno-omit-frame-pointer does not result in the shown
error.
This issue does not occur with GCC 7.3.0. The bug report took a while as
multidelta needed 25 days to reduce the pre-processed test file (14.6 MiB).
