[PATCH][4.3] Deprecate -ftrapv

[David Daney]

Mark Mitchell wrote:
> Richard Guenther wrote:
>> This is a request to depcrecate -ftrapv which has numerous problems
>> making it not work as expected since a long time.  As nobody seems
>> to have the energy to ensure it is working I propose to deprecate it
>> for GCC 4.3 to make it possible to remove it during 4.4 (and not
>> block removing libcall notes by it).
> 
> Why doesn't it work?  Can it be made to work relatively easily?  Do we 
> need functionality like this for Ada or Java?
> 

Java only traps on integer division by zero.  As I understand it, this 
is handled by a different mechanism.

David Daney