On Aug 9, 2014, at 9:55 AM, Chen Gang <gang.chen.5...@gmail.com> wrote: >> <save various .sum files> > > Excuse me, I can not find it with `find ./ | grep "\.sum$”`
Then you didn’t do a test suite run. make check will create .sum files. Try cd gcc && make check. Then in testsuite/gcc/gcc.sum there will be a file. > After comparing, should the related ".sum" files be the same (same means > pass checking)? No, use contrib/compare_tests before_dir after_dir :-) If you _save_off the .sum files, you can use the places where you same them off. If you use two trees, you can just use them directly (no saving off). where the two are the build directories that you did a make check in. The output will be in simple english and should be readily understandable.
