Re: Proper fix for PR58477

2014-07-08 Thread Richard Biener
On Tue, 8 Jul 2014, Jan Hubicka wrote: > Hi, > I had to revert change to ipa-prop.c that made stmt_may_be_vtbl_ptr_store > to know that clobbers can not be such stores. > > This triggered byg in detect_type_change_from_memory_writes. This function > does > two things. First is that it tries to p

Proper fix for PR58477

2014-07-07 Thread Jan Hubicka
Hi, I had to revert change to ipa-prop.c that made stmt_may_be_vtbl_ptr_store to know that clobbers can not be such stores. This triggered byg in detect_type_change_from_memory_writes. This function does two things. First is that it tries to prove that vtbl pointer was not modified in the function