On Sun, 2006-08-13 at 12:55 -0600, Jeffrey Law wrote: > Thus the existence of some implicit type conversions. IIRC the > places where these occur or occurred at one time or we pondered > allowing are: > > 1. MODIFY_EXPRs where the RHS can be implicitly converted to the > type of the LHS and the types do not vary in size/mode or > signedness. DOM probably makes more use of this than any > pass.
This still happens today. > > 2. I think we sometimes implicitly convert COMPONENT_REF expressions. > ie, the field we're accessing has some type X, but we want a result > in some other type Y. Under certain circumstances we may access > the field in type Y. I believe this occurs during gimplification. This happens less and less. Most of the problems with this are all related to the front-end rather than the middle-end producing the trees wrongly. I have at least two bugs still out on the C++ front-end for producing a cast instead of ADDR_EXPR/COMPONENT_REF. PR 19816 and 19817. Thanks, Andrew Pinski
