This simple source file causes gcc to crash when compiled with -fvisibility-ms-compat: void foo() { throw "Help!"; } % gcc -v -save-temps -c -fvisibility-ms-compat crash.cxx Using built-in specs. Target: i686-pc-linux-gnu Configured with: ../../src/lnx32/configure --prefix=/tools/batonroot/rodin/devkits/lnx32/gcc-4.4.4 --enable-languages=c,c++ Thread model: posix gcc version 4.4.4 (GCC) COLLECT_GCC_OPTIONS='-v' '-save-temps' '-c' '-fvisibility-ms-compat' '-mtune=generic' /tools/batonroot/rodin/devkits/lnx32/gcc-4.4.4/libexec/gcc/i686-pc-linux-gnu/4.4.4/cc1plus -E -quiet -v -D_GNU_SOURCE crash.cxx -mtune=generic -fvisibility-ms-compat -fpch-preprocess -o crash.ii ignoring nonexistent directory "/tools/batonroot/rodin/devkits/lnx32/gcc-4.4.4/lib/gcc/i686-pc-linux-gnu/4.4.4/../../../../i686-pc-linux-gnu/include" #include "..." search starts here: #include <...> search starts here: /tools/batonroot/rodin/devkits/lnx32/gcc-4.4.4/lib/gcc/i686-pc-linux-gnu/4.4.4/../../../../include/c++/4.4.4 /tools/batonroot/rodin/devkits/lnx32/gcc-4.4.4/lib/gcc/i686-pc-linux-gnu/4.4.4/../../../../include/c++/4.4.4/i686-pc-linux-gnu /tools/batonroot/rodin/devkits/lnx32/gcc-4.4.4/lib/gcc/i686-pc-linux-gnu/4.4.4/../../../../include/c++/4.4.4/backward /usr/local/include /tools/batonroot/rodin/devkits/lnx32/gcc-4.4.4/include /tools/batonroot/rodin/devkits/lnx32/gcc-4.4.4/lib/gcc/i686-pc-linux-gnu/4.4.4/include /tools/batonroot/rodin/devkits/lnx32/gcc-4.4.4/lib/gcc/i686-pc-linux-gnu/4.4.4/include-fixed /usr/include End of search list. COLLECT_GCC_OPTIONS='-v' '-save-temps' '-c' '-fvisibility-ms-compat' '-mtune=generic' /tools/batonroot/rodin/devkits/lnx32/gcc-4.4.4/libexec/gcc/i686-pc-linux-gnu/4.4.4/cc1plus -fpreprocessed crash.ii -quiet -dumpbase crash.cxx -mtune=generic -auxbase crash -version -fvisibility-ms-compat -o crash.s GNU C++ (GCC) version 4.4.4 (i686-pc-linux-gnu) compiled by GNU C version 4.4.4, GMP version 5.0.1, MPFR version 2.4.2. GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum: b301e3deb4f2be9f847ad7d75351dd84 crash.cxx:3: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <http://gcc.gnu.org/bugs.html> for instructions. I am not sure how to attach the .ii file, but the content is pasted here: # 1 "crash.cxx" # 1 "<built-in>" # 1 "<command-line>" # 1 "crash.cxx" void foo() { throw "Help!"; }
Created attachment 20971 [details] crash.ii Attached crash.ii
Confirmed.
Fixed in 4.6.x and mainline. Not a regression.