tree a3c2b91cedd05bc6aba295f13217ebb6d723b958
parent 258d6f7e3ef49fbe1d97eb37b8a07c0730f58fa8
author Sanjin Sijaric <ssijaric@codeaurora.org> 1547718317 +0000
committer Sanjin Sijaric <ssijaric@codeaurora.org> 1547718317 +0000

[ARM64][Windows] Share unwind codes between epilogues

There are cases where we have multiple epilogues that have the exact same unwind
code sequence.  In that case, the epilogues can share the same unwind codes in
the .xdata section.  This should get us past the assert "SEH unwind data
splitting not yet implemented" in many cases.

We still need to add support for generating multiple .pdata/.xdata sections for
those functions that need to be split into fragments.

Differential Revision: https://reviews.llvm.org/D56813


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@351421 91177308-0d34-0410-b5e6-96231b3b80d8