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Hi everyone, (Sorry if I'm asking at the wrong mail listing, but compiler-rt page tells I'd better write on llvm-dev rather than cfe-dev/cfe-users.) I've just built LLVM/Clang+Compiler-rt (Compiler-rt is put inside llvm/projects folder) and tried the -fsanitize option. But strangely the link failed since it cannot find *libclang_rt.san-x86_64.a*. The error message is as

Hi, I am trying to prune some uninteresting llvm ir branches, corresponding to the *if-else* condition in the source code. And here is the procedures: 1. Get the BasicBlock containing the BranchInst which has 2 successors(in order to keep consistent with the source code I am using the llvm ir without any optimizations, so SelectInst/SwitchInst/PHINode is absent), one of which should be

Hi everyone, Recently I tried to compile llvm-gcc-4.2-2.9 on a 64bit ubuntu12.04 machine. And I was using the settings below, export C_INCLUDE_PATH=/usr/include/x86_64-linux-gnu export LIBRARY_PATH=/usr/lib/x86_64-linux-gnu ../llvm-gcc-4.2-2.9.source/configure --enable-optimized --program-prefix=llvm- --enable-checking --enable-llvm=${HOME}/moonbox/llvm-obj/Debug+Asserts

Hi everyone, I have some trouble in instrumenting load instructions. I want to instrument load instructions as follow: Firstly, I judge whether the loaded pointer(*any type is possible*) is NULL. If so, I want to explicitly allocate the corresponding address space of its type to the pointer. For example, in source code level I want to translate the next statement *p = 1; into the next

Hi guys, I am writing a LLVM pass plugin, and just simply add a directory mypass into llvm/lib/Transforms. But since I don't hope this directory to contain too many source files, I add some subdirectories. For instance, there are 2 files inside *mypass/sub: basic.h, basic.cpp. Here is the structure of the directory llvm/lib/Transforms/mypass $tree mypass mypass ├── Makefile ├──

Thanks for your help, Wei-Ren and Anton. However since I am doing some experiments with klee( http://klee.llvm.org/GetStarted.html) and llvm-gcc seems to have better compatibility with it. So I still hope that I can use llvm-gcc:-) Hongxu Chen On Sat, Mar 16, 2013 at 3:35 PM, 陳韋任 (Wei-Ren Chen) [via LLVM] < ml-node+s1065342n56013h94 at n5.nabble.com> wrote: > Hi Chen, > >

On Fri, Oct 11, 2013 at 12:06 AM, John Criswell <criswell at illinois.edu>wrote: > On 10/10/13 10:43 AM, Hongxu Chen wrote: > >> Hi, this question might be a bit silly: apart from the language >> reference(http://llvm.org/**docs/LangRef.html#switch-**instruction<http://llvm.org/docs/LangRef.html#switch-instruction>) >> page, are >> there additional rules

Hi, this question might be a bit silly: apart from the language reference(http://llvm.org/docs/LangRef.html#switch-instruction) page, are there additional rules for a regular llvm frontend to generate llvm IRs? There are a few cases that I got from clang/llvm-gcc/dragonegg when compiling *C* source code into llvm IR: 1. It seems that there is ONLY ONE ReturnInst(and NO InvokeInst) for such llvm