[PATCH] D85199: GlobalISel: Add generic instructions for memory intrinsics

[Matt Arsenault via Phabricator via llvm-commits]

arsenm added a comment.

In D85199#2193321 <https://reviews.llvm.org/D85199#2193321>, @kschwarz wrote:

>> The promotion gets inserted in the libcall lowering [...]
>
> What promotion do you mean? In its current from, createMemLibcall doesn't do any type promotion?

If the argument size is narrower than the register it's passed it, it ends up inserting an extension to the register by virtue of the regular call lowering code

This patch just maintains the functionality that's there already, a new action to narrow the size is a separate patch


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  https://reviews.llvm.org/D85199/new/

https://reviews.llvm.org/D85199