>> When I add a pointer (PSImode) with an int (HImode) (ex: sp-=cnt) , >> gcc expands the signed int by zero_extend'ing the int and then adding >> both PSI values (instead of sign extending). >> How should I fix this ? >> POINTERS_EXTEND_UNSIGNED is 0. > > As far as I know the int will be converted to SIZE_TYPE before being> added to the pointer. Converting a signed int to SIZE_TYPE should sign> extend if SIZE_TYPE is larger than int. I don't know why you are not> seeing that. OK, I assume the problem is also linked to the size_t which does not have the correct size (or a crash occurs during the tree_ssa_loop_ivopts pass). So I will try and fix the ssa ivopt crash first. thanks for your help! Aurélien
