[PATCH] D38130: [mips] Fix negative constant multiplication when using int128_t

[Simon Dardis via Phabricator via llvm-commits]

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A negative value have broken it for int128_t, but it's broken for large positive values as well. You need to switch genConstMult to accept an APInt and perform arbitrary precision arithmetic in genConstMult as well.


https://reviews.llvm.org/D38130