[llvm-commits] [llvm] r155468 - in /llvm/trunk: lib/Transforms/InstCombine/InstCombineCalls.cpp test/Transforms/InstCombine/2012-04-23-Neon-Intrinsics.ll

[Lang Hames]

Hi all,

Here's an updated version of the vmull simplification patch. I believe it
addresses the concerns discussed earlier: It doesn't create any new
instructions, and only simplifies if the new expression would be a constant
or a single ext instruction.

Thoughts?

I've just thrown the widening mul logic into visitCallInst for now, which
seems consistent with how the other intrinsics are dealt with. If anyone
can think of other clients for this kind of widening-mul simplification I'd
be happy to refactor.

Cheers,
Lang.
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