similar to: [LLVMdev] Sanitizer (compiler-rt) build errors on Linux bootstrap

Here is a problem scenario. I want to enable a backend pass at -O2 or above. if (TM->getOptLevel() >= CodeGenOpt::Default) addPass(&xxxxx); This pass will be run at -O1 too since clang is creating the TargetMachine with CodeGenOpt::Default for -O1. --Sumanth G -----Original Message----- From: mehdi.amini at apple.com [mailto:mehdi.amini at apple.com] Sent: Friday, January 6, 2017

On Tue, Jul 8, 2014 at 2:44 PM, sgundapa <sgundapa at codeaurora.org> wrote: > No. CMake has different way of treating the .S files > Refer to http://www.cmake.org/Wiki/CMake/Assembler > > I have a patch which will make CMake treat the .S files as source files. > Let me guess, you should just call set_source_file_properties(<arm .S files> PROPERTIES LANGUAGE C)? >

Hi, AFAIK, the tools "symbolizer, objdump and nm" need a demangler. I see there is libcxxabi which provides the demangle library. But there is no support to build libcxxabi on windows with MSVC. This left a huge void and my symbolizer cannot work on Windows if built with MSVC. Instead of mucking around OS dependencies, why shouldn't we have a demangle library in LLVM.

Is there any specific reason why the clang_rt.builtins-${arch} library is disabled for windows builds? if (NOT WIN32) foreach(arch x86_64 i386 arm) if(CAN_TARGET_${arch}) set_source_files_properties(${${arch}_SOURCES} PROPERTIES LANGUAGE C) add_compiler_rt_runtime(clang_rt.builtins-${arch} ${arch} STATIC SOURCES ${${arch}_SOURCES} CFLAGS

Hi, I am observing a deadlock with llvm-lit on windows 7. When I attached a debugger, the communicate() call is blocked. In file utils/lit/lit/TestRunner.py > # FIXME: There is probably still deadlock potential here. Yawn. > procData = [None] * len(procs) > procData[-1] = procs[-1].communicate() I am invoking python directly on windows to run the unit tests.

getOptLevel() gets the level from TargetMachine which is created by the Backendutil in clang with either "Default", "None" or "Aggressive". Threre is no correspondence for "Less". This boils down to , if I pass "-O1", the Target Machine is created with CodeGenOpt::Default. I am available on IRC @ sgundapa. -----Original Message----- From:

I reacted as per my case. You need CFLAGS in order to what linker you might be using. In case of clang, you can use “-fuse-ld” to control the invocation of linker. In my opinion, it is not necessary to carry forward LDFLAGS unless you want to control specific parts of the linker. In my case, I have a cross compiler for ARM and I usually compile the code with Clang

Hi, I see there is an inconsistency in LLVM libc calls. For a modulo (reminder) operation, clang -target arm-none-linux-gnueabi generates "__modsi3". clang -target arm-none-eabi generates "__aeabi_idivmod" clang -target arm-linux-androideabi generates "__modsi3" Android bionic libc doesn't provide a __modsi3, instead it provides

Is UBSAN on android for ARM target known to work? I know ASAN does work. --Sumanth G -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20140723/9ea92700/attachment.html>

Hi Rafael, I looked at the code which you pushed a while ago to check for the gold linker. Code below: execute_process( COMMAND ${CMAKE_C_COMPILER} -Wl,--version OUTPUT_VARIABLE stdout ERROR_QUIET) if("${stdout}" MATCHES "GNU gold") set(LLVM_LINKER_IS_GOLD ON) endif() I was trying to build runtime libraries (compiler-rt)

> -----Original Message----- > From: llvm-dev [mailto:llvm-dev-bounces at lists.llvm.org] On Behalf Of Mehdi > Amini via llvm-dev > Sent: Friday, January 06, 2017 11:10 AM > To: Sumanth Gundapaneni > Cc: LLVM Developers > Subject: Re: [llvm-dev] LLVMTargetMachine with optimization level passed > from clang. > > > > On Jan 6, 2017, at 10:56 AM, Sumanth

Hi Hans, I have attached a unit test which demonstrates a hang/infinite loop with the opt built with release_36 sources. The fixes are already pushed to "master" branch. The revisions r226588 and r226616 should be pushed to release_36 to fix the unit test. --Sumanth G -------------- next part -------------- An HTML attachment was scrubbed... URL:

Hi, I wonder if this is a valid flag in either clang/gcc. The flag in question is "-march=aarch64". I verified with latest tip and neither clang nor gcc fail to recognize this flag. This piece of code is in cmake/config-ix.cmake in compiler-rt repo. + elseif("${COMPILER_RT_TEST_TARGET_ARCH}" MATCHES "aarch64") + test_target_arch(aarch64

On 8 July 2014 19:47, Alexey Samsonov <vonosmas at gmail.com> wrote: > compiler-rt/lib/builtins/arm/*.S files are listed in arm_SOURCES variable, > and therefore should make it into the builtins static library on ARM. Don't > they? I assume so... But I'm not an expert in CMake.

I want the optimization to be turned on at -O1 and above. In my case, it is a target independent back-end pass. (Eg: MachinePipeliner) On 2017-01-04 18:10, Mehdi Amini wrote: >> On Jan 4, 2017, at 4:03 PM, Sumanth Gundapaneni via llvm-dev >> <llvm-dev at lists.llvm.org> wrote: >> >> I see the BackendUtil.cpp of Clang creates the TargetMachine with >> the

I noticed the compiler-rt/lib/builtins/CmakeLists.txt is not including the .S files in building clang_rt.builtins-arm.a We need to tell the CMake build system that the .S files are also the source files. Is there any intention behind leaving the .S files not to compile? If not, let me know and I will push a patch. --Sumanth G -------------- next part -------------- An HTML attachment

On 7/16/14, 6:09 PM, sgundapa wrote: > I see a couple of issues here. > > If I include .S files for ARM, the –no-integrated-as path complains about > Assembler errors. > > The integrated-as path works fine though. > These are very likely just differences between the old ARM assembler syntax and the new 'Unified' syntax. Can you use an assembler that accepts UAL

On 28 July 2015 at 17:52, Sumanth Gundapaneni <sgundapa at codeaurora.org> wrote: > Android bionic libc doesn’t provide a __modsi3, instead it provides > “__aeabi_idivmod”. Hi Sumanth, Have a look at ARMSubtarget.h, functions: bool isTargetAEABI() They control the lowering of DIV/MOD calls in ARMISelLowering.cpp. Maybe Android needs to be in? cheers, --renato

I am trying to build LLVMgold.so on windows. I came across this piece of code which includes “gold” source directory in tools/CMakeLists.txt if( LLVM_ENABLE_PIC ) # TODO: support other systems: if( (CMAKE_SYSTEM_NAME STREQUAL "Linux") OR (CMAKE_SYSTEM_NAME STREQUAL "FreeBSD") ) add_llvm_tool_subdirectory(gold) else() ignore_llvm_tool_subdirectory(gold) endif() else()

I believe the C source files in builtins directory are generic enough. Why not build a clang_rt.builtins-aarch64 library? --Sumanth G -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20140708/969ee15b/attachment.html>