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[ARM64][Windows] Share unwind codes between epilogues
Audit RequiredrL351421

Description

[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

Details

Auditors
grosbach
Committed
ssijaricJan 17 2019, 1:45 AM
Differential Revision
D56813: [AArch64] [Windows] Share unwind codes between epilogues with identical unwind codes
Parents
rL351420: Merging r351340:
Branches
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