tree f29dfe1993a70dbce6dad012d050bd9cff021747
parent c6cf0923c7697078cbd6f77bedbd76e1f84ade90
author Than McIntosh <thanm@google.com> 1502896972 -0400
committer Than McIntosh <thanm@google.com> 1503001038 +0000

gollvm: fix exception handling stmt bugs

Revise Llvm_backend::exception_handler_statement(), which was not
correct as implemented. Specifically, if an exception is thrown by
something in the catch clause, the catch block for it needs to store
the exception and make a note that the exception took place... then
after the "finally" block has executed, the cleanup code should
rethrow the exception (if there was one) as opposed to unconditionally
returning.

Change-Id: Ia63297cad1bc601f9ab5066ad879b1bc5739efd1
Reviewed-on: https://go-review.googlesource.com/56410
Reviewed-by: Cherry Zhang <cherryyz@google.com>