search for: splitvector

Hi folks, Suppose I create the character vector charvec by > charvec<-c("a1.b1","a2.b2") > charvec [1] "a1.b1" "a2.b2" and then I use strsplit on charvec as follows: > splitlist<-strsplit(charvec,split=".",fixed=TRUE) > splitlist [[1]] [1] "a1" "b1" [[2]] [1] "a2" "b2" I was wondering

...(SDNode*N, unsigned ResNo, SDValue& Lo, SDValue& Hi) { SDValue Op = DisintegrateMERGE_VALUES(N, ResNo); GetSplitOp(Op, Lo, Hi); } DisintegrateMERGE_VALUE() returns SDValue(N, ResNo), where N is the MERGE_VALUE node itself. Then GetSplitOp() tries to retrieve split result for N from the SplitVectors cache and hit assert because split result is for N is not in the cache yet. Seems to me that DisintegrateMERGE_VALUES() should return the corresponding operand for the given ResNo, not the defined value. Please confirm if it's a bug, or if I'm missing something. Thanks, Xiaoyi ---------...

Hi all, I am working on a target that has support for v4i16 vectors, and no support for v4i8 / v8i8 / v8i16 V4i8 is promoted to v4i16 which is nice V8i16 is split to 2 x v4i16 which is nice as well Now v8i8 is scalarized, which is not so nice. Ideally I would like v8i8 to be first promoted to v8i16 then split to 2xv4i16 (or split to 2xV4i8 then promoted to 2xv4i16) Is there a way to achieve

On Wed, May 20, 2009 at 4:55 PM, Dan Gohman <gohman at apple.com> wrote: > Can you explain why you chose the approach of using a new pass? > I pictured removing LegalizeDAG's type legalization code would > mostly consist of finding all the places that use TLI.getTypeAction > and just deleting code for handling its Expand and Promote. Are you > anticipating something more

On May 20, 2009, at 1:34 PM, Eli Friedman wrote: > On Wed, May 20, 2009 at 1:19 PM, Eli Friedman > <eli.friedman at gmail.com> wrote: > >> Per subject, this patch adding an additional pass to handle vector >> >> operations; the idea is that this allows removing the code from >> >> LegalizeDAG that handles illegal types, which should be a significant

...nts - /// at the end of the vector: it may be zero, ones, or garbage. This is useful - /// when we have an instruction operating on an illegal vector type and we - /// want to widen it to do the computation on a legal wider vector type. - SDValue WidenVectorOp(SDValue Op, MVT WidenVT); - - /// SplitVectorOp - Given an operand of vector type, break it down into - /// two smaller values. - void SplitVectorOp(SDValue O, SDValue &Lo, SDValue &Hi); - - /// ScalarizeVectorOp - Given an operand of single-element vector type - /// (e.g. v1f32), convert it into the equivalent operation that retur...