[PATCH] D109124: [ARM] Implement target hook function to decide folding (mul (add x, c1), c2)

[Ben Shi via Phabricator via llvm-commits]

benshi001 added a comment.

In D109124#2982270 <https://reviews.llvm.org/D109124#2982270>, @dmgreen wrote:

> Saving it for later sounds OK to me, but what made Thumb difficult out of interest?

Sorry I am only familiar with ARM ISA. :(

I need extra time to learn about Thumb.


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https://reviews.llvm.org/D109124