[PATCH] D113202: [DAG] FoldConstantArithmetic - fold bitlogic(bitcast(x),bitcast(y)) -> bitcast(bitlogic(x,y))

[Dave Green via Phabricator via llvm-commits]

dmgreen added a comment.

> @dmgreen I'm not sure what is the best fix for the MVE predicate v2i64 regressions - its expanded the bitselect patten and constant folded the 'andnot(x,c)' to 'and(x,~c)' - this was already bad codegen, I think ideally this should be narrowed to a v4i32 equivalent, but I'm not sure how best to address this - hints welcome :)

I have a task I want to get done soon which changes v2i1 to a legal type - these tests will likely all change as that happens. Feel free to ignore the MVE change until then.


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  https://reviews.llvm.org/D113202/new/

https://reviews.llvm.org/D113202