similar to: LLVM-4.0.1 build problem on Linux

I'm trying to do a simple build from the git 8.0.0 sources. The sources seem to build OK but a link step fails from running out of memory. I need some clues how to figure out where the bottleneck might be. The cmake command is: cmake -G Ninja                                          \     -DLLVM_TARGETS_TO_BUILD=X86                         \    

Hi, I've just tagged the 4.0.1 -rc1 release. Testers can start testing and uploading the binaries. If you still have bug fixes you want to get into the 4.0.1 release, you have until May 22 to submit merge requests. -Tom

Trying to run make to build llvm, I faced the following error: Linking CXX shared library ../../lib/libLTO.so collect2: error: ld returned 1 exit status make[2]: *** [lib/libLTO.so.3.8.0svn] Error 1 make[1]: *** [tools/lto/CMakeFiles/LTO.dir/all] Error 2 make: *** [all] Error 2 So, what's the problem here? Regards, Marwa Yusuf Teaching Assistant - Computer Engineering Department

Yes, that’s right. Some LLVM terminology though: The blocks you mention, are called the “exiting blocks” of the loop, and the blocks outside the loop (that are the targets of these exiting blocks) are called the exit blocks. getExitingBlocks in LoopInfoImpl.h is the code you’re interested in. By definition: one of the successor’s of the exiting block is an exit block, and it should have another

hello, I am trying to build LLVM with default options. I am getting the following error message after make. [100%] Building C object tools/llvm-c-test/CMakeFiles/llvm-c-test.dir/metadata.c.o [100%] Building C object tools/llvm-c-test/CMakeFiles/llvm-c-test.dir/module.c.o [100%] Building C object tools/llvm-c-test/CMakeFiles/llvm-c-test.dir/object.c.o [100%] Building C object

Various options for reducing memory usage when building LLVM: * Don't use bfd-ld, at least use gold, probably use lld if you have it available * With Ninja and/or CMake there's some way to specify the maximum number of concurrent linkactions - lower this to fit in your available memory * If you're building with debug info: Use Split DWARF On Thu, Jan 2, 2020 at 5:21 AM Kókai Péter

The last time this came up, we agreed something should be done to fix the defaults, but nobody picked it up and ran with it. I think there was consensus, it just needs legwork now. On Thu, Jan 2, 2020 at 11:58 AM Aaron Smith via llvm-dev < llvm-dev at lists.llvm.org> wrote: > There was a recent thread on reducing memory: >

Hi Steven, > On May 29, 2016, at 11:28 PM, Shi, Steven <steven.shi at intel.com> wrote: > > Hi Mehdi, > Should I apply your attached patch on my llvm3.8 source firstly? Or should I use the latest llvm SVN trunk instead? I wrote it on trunk, but I expect it to be fairly easy to port on 3.8. This is really just quickly plumbing an option on the TargetMachine creation. --

Chandler, I may be doing this wrong, but I'm getting a weird error in building LLVM with Clang via CMake. On x86_64: $ CC=clang CXX=clang++ cmake -G Ninja ../../src/llvm -DCMAKE_BUILD_TYPE=Release -DLLVM_BUILD_TESTS=True -DLLVM_ENABLE_ASSERTIONS=True On ARM: $ CC=clang CXX=clang++ cmake -G Ninja ../src/ -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=../install

Tobias, The most recent commits at svn revision 240868 have broken the Polly build on x86_64 on darwin... [ 57%] Building C object tools/polly/lib/CMakeFiles/Polly.dir/External/isl/isl_int_sioimath.c.o /sw/src/fink.build/llvm37-3.7.0-100/llvm-3.7.0.src/tools/polly/lib/External/isl/isl_int_sioimath.c:1:10: fatal error: 'malloc.h' file not found #include <malloc.h> ^ 1

Hi, Encounter a compilation issue related to c++. Software versions: - gcc 4.7.4 - llvm git commit 98a1ca117e6743dd7f2d505443a96f591d083eab Build log: Scanning dependencies of target LLVMLTO [ 53%] Building CXX object lib/LTO/CMakeFiles/LLVMLTO.dir/Caching.cpp.o /tmp/pkgs/llvm/lib/LTO/Caching.cpp: In lambda function: /tmp/pkgs/llvm/lib/LTO/Caching.cpp:74:7: error: looser throw specifier for

Hi Mehdi, The llvm3.8 gold-plugin.cpp is very different from the latest one on trunk. Your patch has compiling failure on llvm3.8 as below. I will try it on latest trunk later. Thank you help anyway! Building CXX object tools/gold/CMakeFiles/LLVMgold.dir/gold-plugin.cpp.o cd /home/jshi19/llvm38releasebuild/tools/gold && /home/jshi19/clang38/bin/clang++ -DGTEST_HAS_RTTI=0

Hello, Maybe this is not a bugs. But i fail to install llvm many times and different machine(debian os). First, i follow the instruction: http://cilium.readthedocs.io/en/latest/bpf/#llvm But during in compiling, i alway get: ... /home/yubo/git/llvm/tools/clang/lib/Basic/VirtualFileSystem.cpp: In member function ‘virtual llvm::ErrorOr<std::unique_ptr<clang::vfs::File> >

Johannes, This patch seems to be causing test failures when I just do "ninja check", without running "ninja" or "ninja all" first. $ CC=clang CXX=clang++ cmake -G Ninja ~/git/llvm-project/llvm -DLLVM_USE_LINKER=lld -DLLVM_PARALLEL_LINK_JOBS=4 -DCMAKE_BUILD_TYPE=Release -DLLVM_TARGETS_TO_BUILD=X86 && ninja check [...] FAIL: LLVM ::

Does LLVM 8 work in macOS 10.9.5? -- Mark

Hi. I'm using llvm DataFlowSanitizer. I add such code in library libtiff. dfsan_label lt_label = dfsan_create_label("buf_offset", 0); dfsan_set_label(lt_label, (unsigned char *)buf, size); But when i compile libtiff with "-fsanitize=dataflow" option, then there is an error as follows: ../libtiff/libtiff.so.5.2.5: undefined reference to `dfs$jbg_enc_init'

Hello everybody, I am very new to llvm and I am struggling to install it on my 15.10 Xubuntu with kernel 4.2.0-34-generic #39-Ubuntu SMP x86_64 GNU/Linux. I essentially intend to use the clang static analyzer, but it seems that I have to build it on top of llvm and clang. Unfortunately I run into the following problem. CXX shared library ../../../lib/libc++.so at around 52% of the procedure

This seems to be happening to me, too. I think this happens for me on "ninja check-llvm" in a clean build. Let me know if you need more info. On Tue, Dec 10, 2019 at 2:22 PM Doerfert, Johannes via llvm-dev < llvm-dev at lists.llvm.org> wrote: > Hi Jay, > > I am not sure why this happens. > Can you give me some information so I can reproduce it: > Is this happens

Hi I am trying to install llvm and clang on ubuntu 16.04, I tried installing them using apt command but while running the pass it gives me error "error: llvm/pass.h not found *#include"llvm/pass.h"* so i tried installing using the source code and building it my self, *make *fails at 98% with this error *collect2: error: ld returned 1 exit

Hi! I'm trying to build a fast Clang for myself to use for debug builds on Clang itself, but I've been struggling for a very long time on it. Could you please help? I've been following this guide: https://llvm.org/docs/HowToBuildWithPGO.html I've quickly learned that its outdated, because the script it talks about doesn't work with the monorepo layout at all, but in any