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On Sunday 25 November 2007 21:40, Gordon Henriksen wrote: > On Nov 25, 2007, at 11:49, Jon Harrop wrote: > > So does zero-cost exception handling in C++ refer to a special case > > where you can statically prove that there are no destructors to > > call, or something? > > "Zero cost" refers to the overhead introduced in the case when an > exception is not

On Nov 25, 2007, at 11:49, Jon Harrop wrote: > On Sunday 25 November 2007 12:23, Gordon Henriksen wrote: > >> On 2007-11-24, at 21:58, Jon Harrop wrote: >> >>> - Exceptions >> >> http://llvm.org/docs/ExceptionHandling.html >> >> LLVM's exception support is tuned toward DWARF "zero-cost >> exceptions," i.e. C++ exception

* When a goto in a _finally occurs, we must "unwind" to the target code, not just "jump" to target label I'm not sure what you're trying to say here. In the Microsoft ABI, goto out of a catch block also calls into the unwinder. We have to run any destructors, and return from the funclet (catchret/cleanupret). * The call inside a _try is an invoke with EH