similar to: [LLVMdev] Instruction sets requiring more than 3 operands

Dear Mr. Cheng: Thank you for kind information. Can you tell me in more detail about that? For example, I am trying to implement 'demultiplex' instruction as follows: demultiplex <multiplexid,choose,branch0id,branch1id,…,otherwisebranchid> In this case, the number of branch#id is not definite. It can be 1, 2, 3...or any number. My question was about this. I am still not sure how

Hello. I am Seung Jae Lee making a LLVM backend for a new architecture XCC. I found that the instructions use variable names which actually used in the source coding for operands unlike most architectures which use usually register names or addresses as operands. LLVM backend examples such as ARM, SPARC seem to use register names or addresses for operands. How can I implement this on my backend?

Thank you for replying to me. As you recommended, I modified configure.ac in autoconf folder. But I’m not sure about how to regenerate configure. Sorry… I tried to follow the way introduced in README.TXT in the autoconf folder. It asks me to run autoupdate on all the m4 and configure.ac. And then it asks me to regenerate configure script with AutoRegen.sh. However, when I did that, I got an error

Hello. My name is Seung Jae Lee. I'd like to ask you onething about converting to ARM assembly code. I saved the simplest C code shown in your LLVM webpage as 'hello.c' And I made 'hello.bc' by "$ llvm-gcc hello.c -o hello". In order to make ARM assembly code, I typed "llc -march=arm hello.bc -o hello.arm" But, I met this error. llc: ARMISelDAGToDAG.cpp:73:

Xi, I just installed VS2005 pro w/ SP1 for Win Vista. Thanks, Seung ---- Original message ---- >Date: Fri, 22 Feb 2008 12:36:43 +0800 >From: "Xi Wang" <xi.wang at gmail.com> >Subject: Re: [LLVMdev] Is there someone tried LLVM 2.1 on Visual Studio 2005? >To: "LLVM Developers Mailing List" <llvmdev at cs.uiuc.edu> > >I'm sorry but did you

On the document about writing an LLVM backend, I became to wonder what the 'virtual register' is in the following statement. "You also need to define register classes to contain these registers, such as the integer register class and floating-point register class, so that you can allocate virtual registers to instructions from these sets, and let the target-independent register

Can you recommend any good book or reference for backend implementation? I skimmed some compiler books but it seemed to be more about front-end, parsing, optimization etc. Would you mind suggesting some books containing more about backend? Thank you.

Dear Prof.Adve and Bill, I deeply appreciate your comments and concerns. (Please forgive my late response. I've tried some more cases to make this issue) As Prof.Adve mentioned, I need to explain exactly what my problem is, but I have no good ability that I can explain it in this plain text space. For this reason, I made a .pdf file and linked it as follows:

Hello. Nice to meet you. My name is Seung Jae Lee, a graduate student in UIUC CEE, who is working in NCSA for the present. Nowadays I am trying to develop LLVM backend to spit out CHiMPS assembly code. In the process, I installed LLVM codes on my home directory in the host computer. But I don't think it was installed properly. While bootstrapping the LLVM C/C++ Front-End, I met several

Dear R-Users, I need a very fast and reliable database solution so I try to serialize a data.frame (to binary data) and to store this data to an SQLite database. This is what I tried to do: library(RSQLite) con <- dbDriver("SQLite") db <- dbConnect(con, "test") dbSendQuery(db, 'CREATE TABLE frames("simID" INT, "data" BLOB)') data.bin <-

Hello. I am trying to run tblgen so I typed $ tblgen ARM.td -print-enums -class=Register in "llvm/lib/Target/ARM" But I got an error as follows: Included from ARM.td:18: Parsing ../Target.td:16: Could not find include file 'llvm/Intrinsics.td'! As you know, the 16th line of Target.td includes "llvm/Intrinsics.td". But this cannot find Intrinsics.td, I think. Of

Dear Mr. Lattner: Thank you for kind information. I am still a little confused, though. In your example, %X = add int %Y, %Z is generated to add EAX, EBX I think EAX and EBX are the register names of X86. But, I should emit variable names instead of register names. For my example in the source code, int k; k = i + j; should be emit like this: reg k add i,j;k (If

Dear Mr. Lattner: You have asked me how my instruction set works. If I code like this: int foo1() { int x1,x2; x1 =1; x2 = foo2(x1); return x2; } int foo2(int k) { if(k == 1) k = 2; return k; } int main () { int j; j = foo1(); } This should be emitted like this: Enter foo1; reg x2, x1 add 1;x1 Call foo2;x1,x2 Exit foo1; x2

Thank you for this information. If so, is there any way to grasp which kinda data throw in and out in LLVM as shown in such a way in gdb? Thanks, Seung Jae Lee ---- Original message ---- >Date: Tue, 20 Feb 2007 23:54:04 -0600 >From: "John T. Criswell" <criswell at cs.uiuc.edu> >Subject: Re: [LLVMdev] bugpoint usage >To: LLVM Developers Mailing List <llvmdev at

Hello, guys. I just tested -reg2mem pass to see how it changes my bitcode. E.g., for the following simple C code: ------------------------------------------------------------- int foo() { int i,j; int sum = 0; for (i=0; i<10; i++) { sum += i; for (j=0; j<3; j++) sum += 2; } return sum; } ------------------------------------------------------------- I could get the

Hello, LLVMers. I just wonder How I can pronounce Clang. [see-laeng], [see-lang], [k-laeng], [k-lang]?? Thanks, Seung

Thank you, Bill. Seems to be better. Anyway...Is there a way I can do what you showed for me? Thanks, Seung J. Lee ---- Original message ---- >Date: Sat, 26 Jan 2008 22:10:01 -0800 >From: Bill Wendling <isanbard at gmail.com> >Subject: Re: [LLVMdev] Question to Chris >To: LLVM Developers Mailing List <llvmdev at cs.uiuc.edu> > >On Jan 26, 2008, at 9:48 AM, Seung

Thanks for your comment. I also tried for LLVM 2.2 but got the same compilation errors on VS2005. (I didn't modify anything before the compilation) I just wonder if I need bison and flex even just in the case of compiling them on VS2005 without changing anything because the LLVM doc says "If you plan to modify any .y or .l files, you will need to have bison and/or flex installed where

I followed the steps in "Getting Started with the LLVM System using Microsoft Visual Studio" in the document in LLVM page. I made hello.c file exactly same shown in the page. I made hello.bc on UNIX and transferred it to my Windows computer. And I typed "llc -march=c hello.bc" (Of course, I downloaded the latest version of LLVM and compiled with VS before this.) But my command