[LLVMdev] Turning on exception handling codegen

[Duncan Sands]

Right now llvm-gcc generates exception handling intrinsics,
but actual eh codegen (--enable-eh) is turned off.  On
x86-linux, turning it on generates no new failures in the
testsuite, so how about turning it on?  The problem is
likely to be PPC which claims to support eh but doesn't
support it completely yet AFAIK.  I suggest setting
SupportsExceptionHandling to false for PPC until it is
fixed.

I think it is important to have eh work in the next
release, which means turning on eh codegen in the
near future.  I'd rather turn it on sooner than
later, so it gets more testing.

Ciao,

Duncan.