[RFA][PATCH] Isolate erroneous paths optimization

[Jeff Law]

On 11/05/13 04:53, Richard Biener wrote:
>>
>> Fortran front-end doesn't provide this IIRC.
>
> Are you sure?  omp lowering makes unconditional use of it and I see
> it created in f95-lang.c.  There are various other unconditional uses
> one covering vararg functions, one exceptions.  I doubt we have a
> language that doesn't have BUILT_IN_TRAP, and if that is so, it should
> be fixed to provide it ... (java seems to miss it).
Just to confirm, I hacked things up a bit and was able to trip the 
failure again in the java front-end.

I'll go ahead with the patch as-is with a followup to add the builtin to 
the java front-end and remove the hack from gimple-ssa-isolate-paths.

jeff