[llvm] r277093 - Add LLVM_ENABLE_LLD option to use LLD as C/C++ linker.

[Saleem Abdulrasool via llvm-commits]

On Mon, Aug 8, 2016 at 1:37 PM, Hans Wennborg <hans at chromium.org> wrote:

> Saleem: Ping?


Sorry, somehow this completely went past without me even seeing it.  Sorry
for the delay, a thumbs up from me (even though it may be a bit late).


> On Tue, Aug 2, 2016 at 10:54 AM, Hans Wennborg <hans at chromium.org> wrote:
> > Eugene has asked that this be merged to 3.9. Saleem, what do you think?
> >
> > Thanks,
> > Hans
> >
> > On Thu, Jul 28, 2016 at 5:46 PM, Eugene Zelenko via llvm-commits
> > <llvm-commits at lists.llvm.org> wrote:
> >> Author: eugenezelenko
> >> Date: Thu Jul 28 19:46:13 2016
> >> New Revision: 277093
> >>
> >> URL: http://llvm.org/viewvc/llvm-project?rev=277093&view=rev
> >> Log:
> >> Add LLVM_ENABLE_LLD option to use LLD as C/C++ linker.
> >>
> >> Differential revision: https://reviews.llvm.org/D22896
> >>
> >> Modified:
> >>     llvm/trunk/CMakeLists.txt
> >>     llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
> >>
> >> Modified: llvm/trunk/CMakeLists.txt
> >> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/CMakeLists.
> txt?rev=277093&r1=277092&r2=277093&view=diff
> >> ============================================================
> ==================
> >> --- llvm/trunk/CMakeLists.txt (original)
> >> +++ llvm/trunk/CMakeLists.txt Thu Jul 28 19:46:13 2016
> >> @@ -317,6 +317,7 @@ endif()
> >>  option(LLVM_ENABLE_CXX1Y "Compile with C++1y enabled." OFF)
> >>  option(LLVM_ENABLE_LIBCXX "Use libc++ if available." OFF)
> >>  option(LLVM_ENABLE_LIBCXXABI "Use libc++abi when using libc++." OFF)
> >> +option(LLVM_ENABLE_LLD "Use lld as C and C++ linker." OFF)
> >>  option(LLVM_ENABLE_PEDANTIC "Compile with pedantic enabled." ON)
> >>  option(LLVM_ENABLE_WERROR "Fail and stop if a warning is triggered."
> OFF)
> >>
> >>
> >> Modified: llvm/trunk/cmake/modules/HandleLLVMOptions.cmake
> >> URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/cmake/
> modules/HandleLLVMOptions.cmake?rev=277093&r1=277092&r2=277093&view=diff
> >> ============================================================
> ==================
> >> --- llvm/trunk/cmake/modules/HandleLLVMOptions.cmake (original)
> >> +++ llvm/trunk/cmake/modules/HandleLLVMOptions.cmake Thu Jul 28
> 19:46:13 2016
> >> @@ -144,6 +144,12 @@ function(add_flag_or_print_warning flag
> >>    endif()
> >>  endfunction()
> >>
> >> +if(LLVM_ENABLE_LLD)
> >> +  check_cxx_compiler_flag("-fuse-ld=lld" CXX_SUPPORTS_LLD)
> >> +  append_if(CXX_SUPPORTS_LLD "-fuse-ld=lld"
> >> +    CMAKE_EXE_LINKER_FLAGS CMAKE_MODULE_LINKER_FLAGS
> CMAKE_SHARED_LINKER_FLAGS)
> >> +endif()
> >> +
> >>  if( LLVM_ENABLE_PIC )
> >>    if( XCODE )
> >>      # Xcode has -mdynamic-no-pic on by default, which overrides -fPIC.
> I don't
>



-- 
Saleem Abdulrasool
compnerd (at) compnerd (dot) org
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