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[CMake] Support lld with LTO bootstrap 

lld has LTO support, if requested we should add a dependency on lld
rather than LLVMgold when doing LTO bootstrap build.

Differential Revision: https://reviews.llvm.org/D26649

llvm-svn: 287179
This commit is contained in:
Petr Hosek 2016-11-16 23:59:06 +00:00
parent f72a8d4e08
commit 8e07a88bfa
1 changed files with 8 additions and 3 deletions
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11
clang/CMakeLists.txt
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@ -511,10 +511,10 @@ if (CLANG_ENABLE_BOOTSTRAP)
set(STAMP_DIR ${CMAKE_CURRENT_BINARY_DIR}/${NEXT_CLANG_STAGE}-stamps/)
set(BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR}/${NEXT_CLANG_STAGE}-bins/)
# If the next stage is LTO we need to depend on LTO and possibly LLVMgold
# If the next stage is LTO we need to depend on LTO and possibly lld or LLVMgold
if(BOOTSTRAP_LLVM_ENABLE_LTO OR LLVM_ENABLE_LTO AND NOT LLVM_BUILD_INSTRUMENTED)
add_dependencies(clang-bootstrap-deps LTO)
if(APPLE)
add_dependencies(clang-bootstrap-deps LTO)
# on Darwin we need to set DARWIN_LTO_LIBRARY so that -flto will work
# using the just-built compiler, and we need to override DYLD_LIBRARY_PATH
# so that the host object file tools will use the just-built libLTO.
@ -526,7 +526,12 @@ if (CLANG_ENABLE_BOOTSTRAP)
set(LTO_LIBRARY -DDARWIN_LTO_LIBRARY=${LLVM_SHLIB_OUTPUT_INTDIR}/libLTO.dylib
-DDYLD_LIBRARY_PATH=${LLVM_LIBRARY_OUTPUT_INTDIR})
elseif(NOT WIN32)
add_dependencies(clang-bootstrap-deps LLVMgold llvm-ar llvm-ranlib)
add_dependencies(clang-bootstrap-deps llvm-ar llvm-ranlib)
if(BOOTSTRAP_LLVM_ENABLE_LLD)
add_dependencies(clang-bootstrap-deps lld)
elseif(LLVM_BINUTILS_INCDIR)
add_dependencies(clang-bootstrap-deps LLVMgold)
endif()
set(LTO_AR -DCMAKE_AR=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ar)
set(LTO_RANLIB -DCMAKE_RANLIB=${LLVM_RUNTIME_OUTPUT_INTDIR}/llvm-ranlib)
endif()