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[cmake] Disable manifest generation when LLD is the linker

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Running mt.exe to make the manifest is really slow. Disabling manifest
generation doesn't seem to break anything.

llvm-svn: 258581
This commit is contained in:
Reid Kleckner 2016-01-22 23:27:13 +00:00
parent a2ed036c0a
commit b68cad5bbe
1 changed files with 8 additions and 4 deletions
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12
cmake/modules/HandleLLVMOptions.cmake
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@ -55,6 +55,14 @@ int main() { return (float)x; }"
endif()
endif()
if (CMAKE_LINKER MATCHES "lld-link.exe")
# Pass /MANIFEST:NO so that CMake doesn't run mt.exe on our binaries. Adding
# manifests with mt.exe breaks LLD's symbol tables and takes as much time as
# the link. See PR24476.
append("/MANIFEST:NO"
CMAKE_EXE_LINKER_FLAGS CMAKE_MODULE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS)
endif()
if( LLVM_ENABLE_ASSERTIONS )
# MSVC doesn't like _DEBUG on release builds. See PR 4379.
if( NOT MSVC )
@ -514,10 +522,6 @@ macro(append_common_sanitizer_flags)
if (CMAKE_LINKER MATCHES "lld-link.exe")
# Use DWARF debug info with LLD.
append("-gdwarf" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)
# Pass /MANIFEST:NO so that CMake doesn't run mt.exe on our binaries.
# Adding manifests with mt.exe breaks LLD's symbol tables. See PR24476.
append("/MANIFEST:NO"
CMAKE_EXE_LINKER_FLAGS CMAKE_MODULE_LINKER_FLAGS CMAKE_SHARED_LINKER_FLAGS)
else()
# Enable codeview otherwise.
append("/Z7" CMAKE_C_FLAGS CMAKE_CXX_FLAGS)