trans-mem.c (gate_tm_init): Return false if cfun->cfg is NULL.

make gate_tm_init more robust and avoid this bug: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87162

Created by: jwakely

This is an unofficial mirror that nobody from the GCC project is involved with. Sending pull requests here is a waste of time.

Please see https://gcc.gnu.org/contribute.html for how to contribute to GCC, thanks.

Created by: skeetor

So whats the point of this mirror?

Created by: jwakely

I don't know. Somebody thought it would be useful to have a copy of GCC mirrored on github.