search for: vec3

...trying to compare different Python-C wrapping techniques to see >> > which >> > would be faster and also more suited to game development. >> > I'm using Stackless Python 2.6.2 at 74550 / GCC 4.3.3, and boost 1.39.0 on >> > Ubuntu 9.04. I implemented a simple Vec3 (3D vector) class in C++ and >> > wrapped it with boost::python. All it does is multiplications and >> > additions, >> > so it implements just two operators for python. >> > The thing is, it proves to be kind of slow compared to an equivalent >> > Cython...

Hi all, I am trying to generate LLVM IR that calls an external C++ function returning a structure by copy: vec3 vec3::Cross(const vec3& iV) const; Here is the LLVM IR that I am generating for win32 ABI, which says that the first parameter should be a pointer to the return value: %vec3 = type <{ float, float, float }> define void @CPP_Return_Struct(%vec3* %v1, %vec3* %v2) inlinehint alignstack(16...

On Fri, Aug 12, 2011 at 1:11 AM, Damien Gleizes <gleizesd at gmail.com> wrote: > > Hi all, > > I am trying to generate LLVM IR that calls an external C++ function > returning a structure by copy: > vec3 vec3::Cross(const vec3& iV) const; > > Here is the LLVM IR that I am generating for win32 ABI, which says that the > first parameter should be a pointer to the return value: > > %vec3 = type <{ float, float, float }> > > define void @CPP_Return_Struct(%vec3* %v1, %vec...

Simple one, have read and googled, still no luck! I want to create several empty vectors all of the same length. I would like multiple empty vectors (vec1, vec2, vec3) and want to create them all in one line. I've tried vec1,vec2,vec3 <- vector(length=5) and c(vec1,vec2,vec3) <- vector(length=5) and several other attempts but nothing seems to work ... suggestions? Thanks Jim =============================== Dr. Jim Maas University of East Anglia...

Hi all, I’ve narrowed down a problem in my code to the following test case: - - - - typedef struct {float v[2];} vec2; typedef struct {float v[3];} vec3; vec2 getVec2(); vec3 getVec3() { vec2 myVec = getVec2(); vec3 res; res.v[0] = myVec.v[0]; res.v[1] = myVec.v[1]; res.v[2] = 1; return res; } - - - - Compiling this with any level of optimization for arm64 gives incorrect code, unless my test case above is triggering some undefined...

Dear all, Without a loop, I would like transform 3 numeric vectors empty of 0/1 of same length Vec1 : transform 1 to A and 0 to "" Vec2 : transform 1 to B and 0 to "" Vec3 : transform 1 to C and 0 to "" to obtain only 1 vector Vec who is the paste of the 3 vectors (Ex : ABC, BC, AC, AB,...) Any idea ? Thank you for your help -- Michel ARNAUD

Hello, My input language has support for 3 and 4 element vectors but my target only has support for the latter. The language defines vec3 with the same storage space as vec4 so from a backend perspective they are both the same. I'd really like if I could have LLVM treat vec3 as vec4 but I haven't found out how. Currently the target has emulated support for vec3 through LLVM. Loads are already widened by LLVM to a vec4. Store...

...w = type { %visobj, %vec2, %vec2, %vec2, %string, %color, i32, i32, %string, %string, %string, i1, i1, i1, i1, i1, i1, i32, i8* } %visobj = type { %object, i1, i1, i1, i1, %color, %vec4, %vec4, %vec4, %vec4, i32, %mat4, %mat4, %mat4, %mat4, %material*, %effect*, i32, i32, i32, float, i8, %visobj*, %vec3, %vec3, %vec3, %vec3, %vec3, %vec3, %quat, float, float, float, float, float, float, %map, i8* } %object = type { i8, i8, i8, i8, i8, i8, i8, i8, %string, %string, i8* } %string = type { i8* } %color = type { i8, i8, i8, i8 } %vec4 = type { float, float, float, float } %mat4 = type { float, float,...

...g on ARM NEON support. Can you please confirm? Thanks, Javier From: James Molloy [mailto:james.molloy at arm.com] Sent: Wednesday, February 29, 2012 2:35 AM To: Martinez, Javier E; llvmdev at cs.uiuc.edu Subject: RE: Expand vector type Hi, * Is there a way to setup LLVM to automatically convert vec3s to vec4s? Yes, if you specify v3i16 and friends as "promote" instead of "legal", llvm will promote it to a v4i16. The ARM NEON backend does this already. I'm surprised you haven't got this happening already as you mention that LLVM widens your loads to 4-element vector...

Hi, * Is there a way to setup LLVM to automatically convert vec3s to vec4s? Yes, if you specify v3i16 and friends as "promote" instead of "legal", llvm will promote it to a v4i16. The ARM NEON backend does this already. I'm surprised you haven't got this happening already as you mention that LLVM widens your loads to 4-element vec...

...ee vectors representing participants:   vec1 <- c(4,5,6,7,8,9,10,11,12,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81) vec2 <- c (1,2,3,4,5,6,7,8,9,10,11,12,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66) vec3 <- c (1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,52)   I'd like to return a vector that contains only the values that are shared across ALL THREE vectors. So the statement would return a vector that looked like this: 4,5,6,7,8,9,10,11,12,52   For some reason I initially thought that a cbind a...

...ling List R Subject: [R] Problem with bwplot Hi, I'm ploting some box-and-whisker plots with bwplot but I'm not getting any box-and-whiskers ... just dots. I'm using lattice 0.9-16 with R 1.9.1. Try library(lattice) rnorm(60)->vec1 rep(1:3,20)->vec2 rep(LETTERS[1:2],30)->vec3 bwplot(vec1~vec2|vec3) Thanks EJ ______________________________________________ R-help at stat.math.ethz.ch mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html

Thanks. Yes. Your approach can identify: Glaxy ace S 5830 and S 5830 Glaxy ace But you can not identify using same program: Iphone 4S 16 G Iphone 4S 16G How should I solve both in same time. Kind regards,Tammy [[alternative HTML version deleted]]

...Vector types - generally in headers so they can be inlined an optimized well - but I’d definitely like to understand the root cause of this one so I can be on the lookout for any other similar failures. Simon > > typedef struct {float v0, v1;} vec2; > typedef struct {float v0, v1, v2;} vec3; > > vec2 getVec2(); > > vec3 getVec3() > { > vec2 myVec = getVec2(); > > vec3 res; > res.v0 = myVec.v0; > res.v1 = myVec.v1; > res.v2 = 1; > return res; > } > > .section __TEXT,__text,regular,pure_instructions > .globl _getVec3 >...

Hi, there I'm currently trying to figure out how to keep my "factor" levels for a variable when moving it from one data frame or matrix to another. Example below: vec1<-(rep("10",5)) vec2<-(rep("30",5)) vec3<-(rep("80",5)) vecs<-c(vec1, vec2, vec3) resp<-rnorm(2,15) dat<-as.data.frame(cbind(resp, vecs)) dat$vecs<-factor(dat$vecs) dat R returns: resp vecs 1 1.57606068767956 10 2 2.30271782269308 10 3 2.39874788444542 10 4 0.96398773842...

...mailto:james.molloy at arm.com]<mailto:[mailto:james.molloy at arm.com]> Sent: Wednesday, February 29, 2012 2:35 AM To: Martinez, Javier E; llvmdev at cs.uiuc.edu<mailto:llvmdev at cs.uiuc.edu> Subject: RE: Expand vector type Hi, * Is there a way to setup LLVM to automatically convert vec3s to vec4s? Yes, if you specify v3i16 and friends as "promote" instead of "legal", llvm will promote it to a v4i16. The ARM NEON backend does this already. I'm surprised you haven't got this happening already as you mention that LLVM widens your loads to 4-element vector...

...:[mailto:james.molloy at arm.com]> > *Sent:* Wednesday, February 29, 2012 2:35 AM > *To:* Martinez, Javier E; llvmdev at cs.uiuc.edu <mailto:llvmdev at cs.uiuc.edu> > *Subject:* RE: Expand vector type > > Hi, > > * *Is there a way to setup LLVM to automatically convert vec3s to vec4s? * > > ** > > Yes, if you specify v3i16 and friends as “promote” instead of “legal”, llvm will > promote it to a v4i16. The ARM NEON backend does this already. I’m surprised you > haven’t got this happening already as you mention that LLVM widens your loads to > 4-ele...

...each predicate bit masks out a whole short vector. We're using this extension to vectorize graphics code where where variables in the pre-vectorization code are short vectors. > So, vectorizing code like: > for(int i = 0; i < 1000; i++) > { > vec4 color = colors[i]; > vec3 normal = normals[i]; > color.rgb *= fmax(0.0, dot(normal, light_dir)); > colors[i] = color; > } > > I'm planning on passing already vectorized code into LLVM and using LLVM as a backend for optimization and JIT code generation. > > Do you think the EVL proposal woul...

...ing a piece of code where I need to compare multiple same length vectors. I've gone through the basic functions like identical() or all(), but they only work for comparing 2 vectors. From 3 vectors on, it doesn't work . Example: Assuming vec1 <- c (1,2,3,4,5) vec2 <- c(1,2,3,4,5) vec3 <- c(1,2,3,4,4) identical (vec1,vec2,vec3) returns TRUE, since the 2 first vectors are equal. I need a function that returns FALSE if one of the vectors is different. Any idea ? Antoine -- View this message in context: http://r.789695.n4.nabble.com/Equality-of-multiple-vectors-tp4608015.htm...

I would like to selectively remove rows from a table. I had hoped that I could create a table and selectively add rows with something like > NewTable<-table(nrow=100, ncol=4) > NewTable[1,]<-OldTable[10,] but that doesn't work. The former call gives > NewTable ncol nrow 4 100 1 while the latter call gives a table the length of OldTable. Making a matrix, m, with the