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ripplebucketexists
2011 Mar 08
0
[LLVMdev] First Patch
...CombineAddSub.cpp
> ===================================================================
> --- lib/Transforms/InstCombine/InstCombineAddSub.cpp (revision 127153)
> +++ lib/Transforms/InstCombine/InstCombineAddSub.cpp (working copy)
> @@ -57,6 +57,30 @@
> }
>
>
> +static bool RippleBucketExists(APInt &thisKnownZero, APInt &thisKnownOne,
> + APInt &otherKnownZero, unsigned width) {
> + APInt mask;
> + // First try to to take care of the case
> + // (X & ~4) + (Y & 1)
> + int32_t power = (~thisKnownZero).exactLogBase2();...
2011 Mar 08
2
[LLVMdev] First Patch
Hi!
I've attached a patch which takes care of the issues mentioned (and adds
two tests).
--
Sanjoy Das
http://playingwithpointers.com
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