[Bug middle-end/39625] [4.5 regression] Revision 145338 breaks ability to build Ada

[ebotcazou at gcc dot gnu dot org]

------- Comment #29 from ebotcazou at gcc dot gnu dot org  2009-04-16 07:57 -------
Richard,

the removal of

  /* If the RHS of the MODIFY_EXPR may throw or make a nonlocal goto
     and the LHS is a user variable, then we need to introduce a formal
     temporary.  This way the optimizers can determine that the user
     variable is only modified if evaluation of the RHS does not throw.  */

from is_gimple_reg_or_call_rhs breaks __builtin_setjmp / __builtin_longjmp (and
probably nonlocal gotos).


-- 

ebotcazou at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |rguenth at gcc dot gnu dot
                   |                            |org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39625