https://gcc.gnu.org/bugzilla/show_bug.cgi?id=79176
Bug ID: 79176
Summary: ICE in mangle_decl with LTO and Os
Product: gcc
Version: 6.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: rush at rushbase dot net
Target Milestone: ---
Created attachment 40560
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40560&action=edit
Test case
I tried to reduce the test-case as much as possible, sorry if it is still kinda
large. Same error occurs on an ARM cross-compiler toolchain so it's unrelated
to openSUSE. Works fine in GCC 5.
> g++ -v tileui.ii -flto -Os
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/lib64/gcc/x86_64-suse-linux/6/lto-wrapper
Target: x86_64-suse-linux
Configured with: ../configure --prefix=/usr --infodir=/usr/share/info
--mandir=/usr/share/man --libdir=/usr/lib64 --libexecdir=/usr/lib64
--enable-languages=c,c++,objc,fortran,obj-c++,java,ada,go
--enable-offload-targets=hsa --enable-checking=release
--with-gxx-include-dir=/usr/include/c++/6 --enable-ssp --disable-libssp
--disable-libvtv --disable-libcc1 --enable-plugin
--with-bugurl=http://bugs.opensuse.org/ --with-pkgversion='SUSE Linux'
--disable-libgcj --with-slibdir=/lib64 --with-system-zlib --enable-__cxa_atexit
--enable-libstdcxx-allocator=new --disable-libstdcxx-pch
--enable-version-specific-runtime-libs --enable-linker-build-id
--enable-linux-futex --enable-gnu-indirect-function --program-suffix=-6
--without-system-libunwind --enable-multilib --with-arch-32=x86-64
--with-tune=generic --build=x86_64-suse-linux --host=x86_64-suse-linux
Thread model: posix
gcc version 6.2.1 20161209 [gcc-6-branch revision 243481] (SUSE Linux)
COLLECT_GCC_OPTIONS='-v' '-flto' '-Os' '-shared-libgcc' '-mtune=generic'
'-march=x86-64'
/usr/lib64/gcc/x86_64-suse-linux/6/cc1plus -fpreprocessed tileui.ii -quiet
-dumpbase tileui.ii -mtune=generic -march=x86-64 -auxbase tileui -Os -version
-flto -o /tmp/cc8rrWq5.s
GNU C++14 (SUSE Linux) version 6.2.1 20161209 [gcc-6-branch revision 243481]
(x86_64-suse-linux)
compiled by GNU C version 6.2.1 20161209 [gcc-6-branch revision
243481], GMP version 6.1.1, MPFR version 3.1.5, MPC version 1.0.3, isl version
0.15
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
GNU C++14 (SUSE Linux) version 6.2.1 20161209 [gcc-6-branch revision 243481]
(x86_64-suse-linux)
compiled by GNU C version 6.2.1 20161209 [gcc-6-branch revision
243481], GMP version 6.1.1, MPFR version 3.1.5, MPC version 1.0.3, isl version
0.15
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 5a52b00df252688dd94bc6e0ab87eb4e
In file included from /home/rush/code/cortex/modules/tileui.cpp:1:0:
/home/rush/code/cortex/./modules/tileui.hpp:27:26: internal compiler error: in
mangle_decl, at cp/mangle.c:3659
ecppApp->setTimeout([=] {
^
