Hello! > Compare the log file of the test runs from my lto bootstrap: > > http://gcc.gnu.org/ml/gcc-testresults/2012-11/msg00832.html
Platform: x86_64-unknown-linux-gnu configure flags: ... --with-arch=native --with-tune=native > to that of a "normal" x86_64 bootstrap: > > http://gcc.gnu.org/ml/gcc-testresults/2012-11/msg00790.html Platform: x86_64-unknown-linux-gnu configure flags: ... --with-arch=core2 --with-cpu=core2 > What log files, if any, would be helpful to hunt this down ? You have AVX capable machine, and --with-arch=native enables 256 bit vectorization behind your back. The vectorizer testcases are not prepared for an internal rerun of vectorization and - since each internal report merges it own dump to the report -- scan-tree-dump-times fail. So, testsuite issue. Uros.