similar to: How data is laid out in default.profraw when doing profiling?

Hi vedant, The program didn't pass the checking "OF->getArch() != Triple(Arch).getArch()" loadBinaryFormat in CoverageMappingReader.cpp and returned an error. It's because "OF->getArch()" returned null and "Triple(Arch).getArch()" returned XXXX(name of my arch). The returned value of " OF->getArch()" is decided by "

Hi vedant, 1. First, I think your theory is right that llvm’s object file reading libraries do not “understand” the architecture I’m working on. Since I’m using binutils as assembler which means llvm can only provide asm and object file is provided by biutils. I think these ELF header information is provided by my binutils now, so maybe I have to modify binutils code to provide ELF header

Hi vedant, 1. The definition is from llvm/Supprot/ELF.h. But this machine information(e_machine) is given to compiler at lib/MC/ELFObjectWriter.cpp. I greped the whole llvm project and found that e_machine was assigned at only two files. One was lib/MC/ELFObjectWriter.cpp(there was an comment said “e_machine=target”) and the other was tools/obj2yaml/elf2yaml.cpp(GDB stopped only at the

To whom it may concern, I'm running some testcases(A and B) in Linux LLVM(built in Ubuntu16.04) and Windows LLVM(built by Visual Studio 2015), both of which were LLVM 4.0.0 and built with same source codes, but I got different assembly files(A_Linux != A_Windows, B_Linux = B_Windows). Privacy reasons prevent me from sharing my testcases here, sorry. I compared debug information and found the

Hi all, I'm trying to support llvm-cov for a new architecture and I have successfully built compiler-rt for my arch. Following steps shown in https://clang.llvm.org/docs/SourceBasedCodeCoverage.html , I encountered an error for the last step(step of llvm-cov show). The command line was (supposed my arch is XXXX) "llvm-cov show -arch=XXXX ./foo -instr-profile=foo.profdata" and the

Hi Teresa, Thanks for the detailed reply! > How are you creating your bitcode files? I create the bitcode with `-flto=thin -c` and sure it has a GLOBALVAL_SUMMARY_BLOCK. And there’s no RegularLTO partition only ThinLTO bicode. > Where is it aborting in the backend? It aborts at ` report_fatal_error("Failed to setup codegen")` in of codegen() of LTOBackend.cpp. And before that in

We are trying to get PGO working for our embedded out-of-tree target, but the utility 'llvm-profdata' does not like the data we are giving it. Because this is not a hosted environment, we have to off-chip the profiling data ourselves, and although the data looks okay, 'llvm-profdata' reports the following error: llvm-profdata show -all-functions -counts -detailed-summary -text

Can we improve the error message here? We should be able to check zlib::isAvailable and give an error like "profile uses zlib compression but the profile reader was built without zlib support" or so in this case. Xinliang David Li via llvm-dev <llvm-dev at lists.llvm.org> writes: > The __llvm_prf_names section is compressed but your llvm-profdata tool is > probably not built

set LLVM_ENABLE_ZLIB=ON with cmake invocation. zlib should be installed and zlib.h header file needs to be in the header search path. Is your llvm-profdata tool built together with clang? David On Tue, Jul 18, 2017 at 1:04 PM, Martin J. O'Riordan via llvm-dev < llvm-dev at lists.llvm.org> wrote: > How can I build the profile reader with ZLIB support enabled? I configure > and

To whom it may concern, Is there a way to build glibc with clang/llvm? I’m working on enabling llvm-cov for my compiler which is a totally new arch with a libc.a built from newlib. I successfully built compiler-rt but when I typed the command ` clang++ --target=xxx -fprofile-instr-generate -fcoverage-mapping foo.cc -o foo`, the linker failed because of undefined reference to

Hi, I'm working on enabling thinLTO for our custom backend on LLVM-8 with lld to get code size benefits from dead symbol elimination. The code in LTO::run() of LTO.cpp confuses me that, even though thinLTO is specified, runRegularLTO() will be run first and its return value determines whether runThinLTO() will be executed. My question is if it's clearly known that thinLTO is used, is it

Hi. Actually from reading the README, it seems to imply that it can be built with Clang 6.0.0 and above now, though it does incorporate a lot of patches not specific to Clang building so you will end up with them as well: ---------------------------------------------------------------------------- BUILDING GRTE WITH CLANG GRTE v5 and later can also be built with clang and (optionally) lld. LLVM

Hi David, When I use CMake to configure, ‘zlib’ and its header are detected - I build on CentOS 6.5 or CentOS 7. Since I run CMake from the command-line, I tried added ‘-DLLVM_ENABLE_ZLIB=0’ and ‘-DLLVM_ENABLE_ZLIB=1’ (using ‘-DLLVM_ENABLE_ZLIB=ON’ does not seem to work). Both ‘clang’ and ‘llvm-profdata’ (and all other tools and utilities) are configured and built together, in any event,

Hello, I have created a Fitness surface (persp()), with data that was created by a tp spline procedure. Now I would like to superimpose a set (XYZ) of existing points (from two different treatments) onto this surface. I didn't come across any function or command that is able to do this in R. Could somebody please help me in finding a solution to this problem Thank you Peter --

---------- Forwarded message ---------- From: ma yuchao <ma.yuchao@gmail.com> Date: 2006-5-20 ÉÏÎç4:01 Subject: hello, everyone To: R-help@stat.math.ethz.ch Hello, R people: I have a question in using fSeries package--the funciton garchFit and garchOxFit if adding a regression to the mean formula, how to estimate the model in R? using garchFit or garchOxFit? For example,

Hi all! It seems I came across on issue with coverage mapping (http://www.llvm.org/docs/CoverageMappingFormat.html) check on: llvm revision: r228136 clang Last Changed Rev: 228121 build: Debug+Asserts OS: ubuntu 14.04 Here is simple snippets test1.c: NOT OK ================== #include <stdio.h> static int foo() { return 42; } int main() { return 0; } ================== cp src/test1.c

I think that this proposal would be very useful, and I will describe our experiences of trying to do this for our embedded bare-metal target. Recently we implemented support for just the '-fprofile-instr-generate' option and the 'compiler-rt/lib/profile' sources, and added the following to our LD scripts: /* Append the LLVM profiling sections */ . = ALIGN(4);

Hi! I am trying to get a combined coverage report from multiple executables. Looking at earlier discussions [1, 2], it looks like this is supposed to work. I am having some difficulty getting this to work as I would expect it to work, however. Following is a simple case to explain: ////////// shared.h #include <string> void Print1(const std::string& msg); void Print2(const

Hi, all Recently I'm trying to use LLVM PGO and autoFDO. However I have some problems in the process. LLVM source code is updated on April 9th. Operating system is SUSE x86_64 1. Problems in instrumentation based PGO: clang -O2 -fprofile-instr-generate test.c -o a.out ./a.out (then default.profraw is generated) clang -O2 -fprofile-instr-use=default.profraw test.c -o a.out

Hi Sadrul, > On Mar 8, 2018, at 7:40 PM, Sadrul Chowdhury via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > Hi! I am trying to get a combined coverage report from multiple > executables. Looking at earlier discussions [1, 2], it looks like this > is supposed to work. I am having some difficulty getting this to work > as I would expect it to work, however. Following is