search for: ziqiang

Hi, Is there a way to passing llc options to clang, for example -march -mcpu, etc. ? Some threads suggested using -mllvm flag, I tried ./clang -mllvm -march=X86-64 -mcpu=core2 -o hello hello.c, but got "Unknown command line argument" Thanks, Ziqiang -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20141013/7982544a/attachment.html>

Hi, I'm working on a project that use llvm openrisc beckend (currently not part of the upstream). Right now I'm looking at a bug where llc generates memory instructions that has out-of-range displacement, for example l.sb 37668(r1), r2 in which 37668 is a 17 bit signed integer, but the instruction only allows 16 bit signed displacement. As a result, after running through the

...offset of that MBB from its MachineFunction. In order to correctly count the instructions, this pass should be inserted after the last transform pass .. Does this sound reasonable ? Thanks, Patrick 2015-02-28 9:07 GMT-05:00 John Criswell <jtcriswel at gmail.com>: > On 2/27/15 6:30 PM, Ziqiang Patrick Huang wrote: > > Hi, all > > Is there a way of getting the basic block offset from its parent > function ? > > > At the LLVM IR level, no. At the code generator layer > (MachineFunctionPass layer or the MC layer), probably yes. > > > What I'm tryin...

On Sat, Feb 28, 2015 at 7:39 AM, Ziqiang Patrick Huang < ziqiang.huang1001 at gmail.com> wrote: > Hi John > > Thanks for your suggestions, they all sound reasonable to me. The way I'm > thinking right now is to write a MachineFuncionPass that iterate through > each MachinBasicBlock, for each MBB, adds up the inst...

Hi, Is there a way to see what the default argument llc takes from clang/clang++ ? I'm debugging my backend with a very simple c++ program. Running through *clang++ -target myTarget -S simple.cpp -o simple.s * (bug does no show up) gives me different results from *clang++ -target myTarget -S -emit-llvm -o simple.cpp -o simple.ll* *llc simple.ll -o simple.s *(bug shows up) Just trying to

On 2/27/15 6:30 PM, Ziqiang Patrick Huang wrote: > Hi, all > > Is there a way of getting the basic block offset from its parent > function ? At the LLVM IR level, no. At the code generator layer (MachineFunctionPass layer or the MC layer), probably yes. > > What I'm trying to do is to get an executi...

Hi, all Is there a way of getting the basic block offset from its parent function ? What I'm trying to do is to get an execution count of each basic blocks, so I need to know the starting address of each basic blocks. Obviously we can't get the absolute address before linking the program, but the offset relative to parent function should be available so I can take it and get the function

Dear all, I’m not sure if it is O.K. to ask this question here. But where can I find the code for the function ‘C_Cdqrls’ which is called by the R function ‘lsfit‘. Thank you all. Sorry for being naïve if so. -------------------- Ziqiang Zhao 2013-04-23 [[alternative HTML version deleted]]

I'm trying to clone a MachineInstr in the AsmPrinter::EmitInstruction, Here is the code: void EsenciaAsmPrinter::EmitInstruction(const MachineInstr *MI) { const MachineFunction *MF = MI->getParent()->getParent(); MachineInstr *CloneMI = MF->CloneMachineInstr(MI); ... ... } The problem is that MF is a const and CloneMachineInstr expects a non-const. Does anybody know if there is

...in package 'tools' Execution halted make[2]: *** [all] Error 1 make[1]: *** [R] Error 1 make: *** [all] Error 2 It seems that I get stuck in building the package ¡®tools¡¯. Shall I just replace the codes for ¡®tools¡¯ with those from R 2.15.2? Thanks for your help. Ziqiang Zhao 2014-01-18 [[alternative HTML version deleted]]