tree d2ebf849a431d8883a63ef4601bb770c7ff8e259
parent 2bfcacf0ad362956277a1c2c9ba00ddc453a42ce
author Kai Luo <lkail@cn.ibm.com> 1593747038 +0000
committer Kai Luo <lkail@cn.ibm.com> 1593747204 +0000

[PowerPC][NFC] Refactor lowerDynamicAlloc

When performing dynamic stack allocation, calculation of frame pointer
and actual negsize can be separated. This patch refactors
`lowerDynamicAlloc` in preparation of supporting
`-fstack-clash-protection` which also has to calculate actual frame
pointer and negsize.

Differential Revision: https://reviews.llvm.org/D81354