Hello, > > So he updated his tree, saw changes in the middle-end and committed > > his without testing. > > So Kenny would have had to lauch a new bootstrap, wait for a couple of hours > only to discover that something again changed in-between, and so on?
while the testing procedures for gcc recommend to do full testing before commiting, especially in case you have reason to believe that something related has changed, it is not mandatory. But, it is a good idea to spend a few seconds by checking that gcc at least builds (or in this particular case, does not). While this also is not mandatory, it is a common sense, I guess. Zdenek