[llvm-commits] [Review] Preparing for non-power-of-2 machine value types in X86ISelLowering and LegalizeDAG

[Ken Dyck]

The attached patches prepare for the introduction of non-power-of-2
machine value types (as recently discussed [1]). They contain no
functional changes. They merely eliminate assumptions that
incrementing/decrementing a SimpleValueType doubles/halves its size and
that all non-power-of-2 types are extended.

Comments appreciated.

-Ken

[1] http://lists.cs.uiuc.edu/pipermail/llvmdev/2009-December/027598.html
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