[PATCH] Fix __builtin_setjmp in combination with sjlj exception handling.

[Matthias Braun]

The thing is eh_sjlj_longjmp was never used by llvms sjlj handling code and the implementation in the X86 target was for a __builtin_setjmp handling and would not have worked with llvms current sjlj exception handling code. So introducing a new intrinsic for eh_sjlj makes alot of sense.

As a followup I created http://reviews.llvm.org/D9589 which should make this obvious that they are used to implement __builtin_setjmp and __builtin_longjmp by renaming the intrinsics to lightweight_{setjmp|longjmp}.


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  rL LLVM

http://reviews.llvm.org/D9313

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