[LLVMdev] computeMaskedBitsforTargetNode

Bill Wendling isanbard at gmail.com
Thu Nov 20 18:42:17 PST 2008

On Thu, Nov 20, 2008 at 6:19 PM, Villmow, Micah <Micah.Villmow at amd.com> wrote:
> Can someone explain what this function is supposed to do? I've looked at
> PowerPC, Sparc, etc.. and can't really figure out what I should be doing
> here.
Here's what the comment in X86/X86ISelLowering.h has to say:

    /// computeMaskedBitsForTargetNode - Determine which of the bits
    /// in Mask are known to be either zero or one and return them in
    /// KnownZero/KnownOne bitsets.


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