[Bug lto/69254] [6 Regression] ICE in streamer_get_builtin_tree when using -fsanitize=shift on the compile side only

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69254

--- Comment #15 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Created attachment 37463
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=37463&action=edit
gcc6-pr69254.patch

Updated untested patch, tested so far just on simple testcases (with
-fsanitize=undefined, -fopenmp and -fcilkplus).  Absolutely no idea what to do
for the testsuite, I'm afraid this can be only tested in the lto.exp framework,
but for the interesting cases needs to know if -fopenmp, -fopenacc, -fcilkplus
or -fsanitize= etc. can be used.