[docs] Update Prolog/Epilog Code Insertion docs to show it's still incomplete

Compact Unwind is a subsection, but that was lost in rGff9feeb520a32d076c3095468208ae116c428285

Reviewed By: void

Differential Revision: https://reviews.llvm.org/D118499
This commit is contained in:
Daniel McIntosh 2022-01-28 14:18:56 -05:00
parent 3e230d15eb
commit 0ee7a2c304

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@ -1482,7 +1482,12 @@ line option ``-regalloc=...``:
Prolog/Epilog Code Insertion
----------------------------
.. note::
To Be Written
Compact Unwind
--------------
Throwing an exception requires *unwinding* out of a function. The information on
how to unwind a given function is traditionally expressed in DWARF unwind