https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92318
Matthias Klose <doko at debian dot org> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |doko at debian dot org
--- Comment #3 from Matthias Klose <doko at debian dot org> ---
this sometimes crashes, sometimes succeeds, using -O1 avoids the issue.
Program received signal SIGSEGV, Segmentation fault.
0x000000000095b710 in lra_eliminate_reg_if_possible(rtx_def**) ()
(gdb) bt
#0 0x000000000095b710 in lra_eliminate_reg_if_possible(rtx_def**) ()
#1 0x000000000094b117 in ?? ()
#2 0x000000000094b288 in ?? ()
#3 0x0000000000951fd9 in ?? ()
#4 0x00000000009553cf in lra_constraints(bool) ()
#5 0x00000000009448d5 in lra(_IO_FILE*) ()
#6 0x0000000000902b12 in ?? ()
#7 0x00000000009cc327 in execute_one_pass(opt_pass*) ()
#8 0x00000000009ccb41 in ?? ()
#9 0x00000000009ccb53 in ?? ()
#10 0x00000000009ccb95 in execute_pass_list(function*, opt_pass*) ()
#11 0x000000000074e1d2 in cgraph_node::expand() ()
#12 0x000000000074f579 in ?? ()
#13 0x0000000000751227 in symbol_table::finalize_compilation_unit() ()
#14 0x0000000000a81e63 in ?? ()
#15 0x000000000059a19a in toplev::main(int, char**) ()
#16 0x000000000059c53b in main ()
$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-linux-gnu/7/lto-wrapper
OFFLOAD_TARGET_NAMES=nvptx-none
OFFLOAD_TARGET_DEFAULT=1
Target: x86_64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu
7.4.0-1ubuntu1~18.04.1' --with-bugurl=file:///usr/share/doc/gcc-7/README.Bugs
--enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++ --prefix=/usr
--with-gcc-major-version-only --program-suffix=-7
--program-prefix=x86_64-linux-gnu- --enable-shared --enable-linker-build-id
--libexecdir=/usr/lib --without-included-gettext --enable-threads=posix
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-vtable-verify --enable-libmpx --enable-plugin --enable-default-pie
--with-system-zlib --with-target-system-zlib --enable-objc-gc=auto
--enable-multiarch --disable-werror --with-arch-32=i686 --with-abi=m64
--with-multilib-list=m32,m64,mx32 --enable-multilib --with-tune=generic
--enable-offload-targets=nvptx-none --without-cuda-driver
--enable-checking=release --build=x86_64-linux-gnu --host=x86_64-linux-gnu
--target=x86_64-linux-gnu
Thread model: posix
gcc version 7.4.0 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
