Created attachment 30107 [details] poc.i.bz2 $ gcc-4.7.3 -v -O2 poc.i -fprofile-use --coverage -o /dev/null Using built-in specs. COLLECT_GCC=gcc-4.7.3 COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-pc-linux-gnu/4.7.3/lto-wrapper Target: x86_64-pc-linux-gnu Configured with: /var/tmp/portage/sys-devel/gcc-4.7.3/work/gcc-4.7.3/configure --prefix=/usr --bindir=/usr/x86_64-pc-linux-gnu/gcc-bin/4.7.3 --includedir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.7.3/include --datadir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.7.3 --mandir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.7.3/man --infodir=/usr/share/gcc-data/x86_64-pc-linux-gnu/4.7.3/info --with-gxx-include-dir=/usr/lib/gcc/x86_64-pc-linux-gnu/4.7.3/include/g++-v4 --host=x86_64-pc-linux-gnu --build=x86_64-pc-linux-gnu --disable-altivec --disable-fixed-point --with-cloog --with-ppl --with-cloog-include=/usr/include/cloog-ppl --disable-ppl-version-check --enable-lto --disable-nls --with-system-zlib --enable-obsolete --disable-werror --enable-secureplt --enable-multilib --with-multilib-list=m32,m64 --disable-libmudflap --disable-libssp --enable-libgomp --with-python-dir=/share/gcc-data/x86_64-pc-linux-gnu/4.7.3/python --enable-checking=release --disable-libgcj --enable-libstdcxx-time --disable-libquadmath --enable-languages=c,c++ --enable-shared --enable-threads=posix --enable-__cxa_atexit --enable-clocale=gnu --enable-targets=all --with-bugurl=http://bugs.gentoo.org/ --with-pkgversion='Gentoo 4.7.3 p1.0, pie-0.5.5' Thread model: posix gcc version 4.7.3 (Gentoo 4.7.3 p1.0, pie-0.5.5) COLLECT_GCC_OPTIONS='-v' '-O2' '-fprofile-use' '-coverage' '-o' '/dev/null' '-mtune=generic' '-march=x86-64' /usr/libexec/gcc/x86_64-pc-linux-gnu/4.7.3/cc1 -fpreprocessed poc.i -quiet -dumpbase poc.i -mtune=generic -march=x86-64 -auxbase poc -O2 -version -fprofile-use -fprofile-arcs -ftest-coverage -o /tmp/cco33h8C.s GNU C (Gentoo 4.7.3 p1.0, pie-0.5.5) version 4.7.3 (x86_64-pc-linux-gnu) compiled by GNU C version 4.7.3, GMP version 5.1.1, MPFR version 3.1.2, MPC version 1.0.1 GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 GNU C (Gentoo 4.7.3 p1.0, pie-0.5.5) version 4.7.3 (x86_64-pc-linux-gnu) compiled by GNU C version 4.7.3, GMP version 5.1.1, MPFR version 3.1.2, MPC version 1.0.1 GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum: 2df2c46e238255eca0f13c5d46fa52c6 poc.c:1:0: internal compiler error: in gcov_open, at gcov-io.c:82 Please submit a full bug report, with preprocessed source if appropriate. See <http://bugs.gentoo.org/> for instructions. This also fails with a vanilla build of the 4.7 branch as of May 8. There is no error with 4.8.0.
Confirmed. 2012-06-30 Nathan Sidwell <nathan@acm.org> ... (coverage_init): Initialize bbg_file_stamp. Read counts file before writing graph header. ... fixed it for 4.8.
Author: rguenth Date: Tue May 14 10:49:28 2013 New Revision: 198875 URL: http://gcc.gnu.org/viewcvs?rev=198875&root=gcc&view=rev Log: 2013-05-14 Richard Biener <rguenther@suse.de> PR gcov-profile/57269 Backport from mainline 2012-06-30 Nathan Sidwell <nathan@acm.org> * coverage.c (coverage_init): Read counts file before writing graph header. Modified: branches/gcc-4_7-branch/gcc/ChangeLog branches/gcc-4_7-branch/gcc/coverage.c