Reid Kleckner cfbfe6f29c [SEH] Implement GetExceptionCode in __except blocks ...

This introduces an intrinsic called llvm.eh.exceptioncode. It is lowered
by copying the EAX value live into whatever basic block it is called
from. Obviously, this only works if you insert it late during codegen,
because otherwise mid-level passes might reschedule it.

llvm-svn: 235768

2015-04-24 20:25:05 +00:00

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