Hi Chris!
Chris Lattner wrote:
[snip]
This is generally done with global variables. The C++ front-end
basically generates code like this:
C++: throw 42;
Pseudo LLVM code:
int *E = allocate_exception_memory(4);
*E = 42;
add_to_current_exception_stack(E);
unwind
I imagine that something similar should work for pypy.
This is indeed pretty much what I did in genllvm1 (note that we're
already writing our second LLVM backend :-). It's even a bit easier
since we don't need an exception stack but only one single exception.
One problem is that exception matching is not entirely straightforward
although this is a property of the PyPy model and has nothing to do with
LLVM per se.
Regards,
Carl Friedrich
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