[PATCH] D121430: [PowerPC] Fix lowering of byval parameters for sizes greater than 8 bytes.

[Stefan Pintilie via Phabricator via llvm-commits]

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To store a byval parameter the existing code would store as many 8 byte elements
as was required to store the full size of the byval parameter.
For example, a paramter of size 16 would store two element of 8 bytes.
A paramter of size 12 would also store two elements of 8 bytes.
This would sometimes store too many bytes as the size of the paramter is not
always a factor of 8.

This patch fixes that issue and now byval paramters are stored with the correct
number of bytes.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D121430

Files:
  llvm/lib/Target/PowerPC/PPCISelLowering.cpp
  llvm/test/CodeGen/PowerPC/ppc64-byval-larger-struct.ll

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