similar to: apply on a 4D array

Evan Cheng-2 wrote: > > Well, how many possible permutations are there? Is it possible to > model each case as a separate physical register? > > Evan > I don't think so. There are 4x4x4x4 = 256 permutations. For example: * xyzw: default * zxyw * yyyy: splat Even if can model each of these 256 cases as a separate physical register, how can I model the use of r0.xyzw in

Hello, I'm trying to read a file that has ascci data in it. The format of the data is in this order: test_number(integer) 4 double readings. Simple,ok, but for life of me I can't get R to put it into the internal format I need. What I want to do is to make an array called dat and dim it 10000 rows by 5 columns. That seems simple enough, I start out by: dat <-

Alex, From my experience in working with GPU vector registers; there is no support for swizzles in the manner that you would normally code them, and in my case I have 6^4 permutations on src registers and 24 combinations in the dst registers. The way that I ended up handling this was to have different register classes for 1, 2, 3 and 4 component vectors. This made the generic cases very simple

On Feb 13, 2009, at 9:47 AM, Alex wrote: > It seems to me that LLVM sub-register is not for the following > hardware architecture. > > All instructions of a hardware are vector instructions. All > registers contains > 4 32-bit FP sub-registers. They are called r0.x, r0.y, r0.z, r0.w. > > Most instructions write more than one elements in this way: > > mul

On Tue, Jan 16, 2018 at 11:13 PM, Martin J. O'Riordan <MartinO at theheart.ie> wrote: > Hi Sean, > > > > I had to add ‘v16f16’ to our out-of-tree target, and this was to > primarily to allow me to express lowering for all the OpenCL types (well, > except for the ‘v3T’ types). > > > > The trend does seem to be towards larger bit-width SIMD registers, and

It seems to me that LLVM sub-register is not for the following hardware architecture. All instructions of a hardware are vector instructions. All registers contains 4 32-bit FP sub-registers. They are called r0.x, r0.y, r0.z, r0.w. Most instructions write more than one elements in this way: mul r0.xyw, r1, r2 add r0.z, r3, r4 sub r5, r0, r1 Notice that the four elements of r0 are written

Dear folks-- Suppose I have an expression that evaluates to a string, and that that string, were it not a character vector, would be a symbol. I would like a function, call it doppel(), that will take that expression as an argument and produce something that functions exactly like the symbol would have if I typed it in the place of the function of the expression. It should go as far along the