https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109031
--- Comment #9 from David Binderman <dcb314 at hotmail dot com> --- (In reply to Martin Liška from comment #8) > > but then if diff returns 1, the script should return 0 and > > if diff returns 0, then the script should return 1. > > You can take an inspiration here: > https://github.com/marxin/gcc-util/blob/master/bisect/reduce.sh Thanks for that. I am a bit further forward and I have this cvise script: /usr/bin/gcc -w -Werror=implicit bug892.c -o one.exe && (./one.exe 1 | fgrep "checksum after hashing g_50 :" > 1) && /home/dcb36/gcc/results/bin/gcc -w -O2 -fno-strict-aliasing bug892.c -o two.exe && (./two.exe 1 | fgrep "checksum after hashing g_50 :" > 2) && diff 1 2; if test $? = 0; then exit 1 fi exit 0 It still doesn't work right and I can't fathom what's wrong. It all works nicely when I do it line by line.
