commit 74aa5d810228d11b62febe4c4da26472a3e8aa3b
author Mandeep Singh Grang <mgrang@codeaurora.org> Wed Jan 16 19:52:59 2019 +0000
committer Mandeep Singh Grang <mgrang@codeaurora.org> Wed Jan 16 19:52:59 2019 +0000
tree eb5e8f8ae67fe88243385091233ffe474da5dce0
parent b6b3a2915c2a2159190c868502df7023f5e547ce

[COFF, ARM64] Implement support for SEH extensions __try/__except/__finally

Summary:
This patch supports MS SEH extensions __try/__except/__finally. The intrinsics localescape and localrecover are responsible for communicating escaped static allocas from the try block to the handler.

We need to preserve frame pointers for SEH. So we create a new function/property HasLocalEscape.

Reviewers: rnk, compnerd, mstorsjo, TomTan, efriedma, ssijaric

Reviewed By: rnk, efriedma

Subscribers: smeenai, jrmuizel, alex, majnemer, ssijaric, ehsan, dmajor, kristina, javed.absar, kristof.beyls, chrib, llvm-commits

Differential Revision: https://reviews.llvm.org/D53540

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351370 91177308-0d34-0410-b5e6-96231b3b80d8