Merge commit 'a1817996fa86' from llvm.org/master into apple/master

Author: git apple-llvm automerger

compiler-rt/CMakeLists.txt

@@ -497,7 +497,7 @@ else()
   if(EXISTS ${COMPILER_RT_LLD_PATH}/ AND LLVM_TOOL_LLD_BUILD)
     set(COMPILER_RT_HAS_LLD TRUE)
   else()
-    set(COMPILER_RT_HAS_LLD FALSE)
+    set(COMPILER_RT_HAS_LLD ${COMPILER_RT_HAS_FUSE_LD_LLD_FLAG})
   endif()
 endif()
 pythonize_bool(COMPILER_RT_HAS_LLD)

compiler-rt/cmake/config-ix.cmake

@@ -146,6 +146,7 @@ check_library_exists(stdc++ __cxa_throw "" COMPILER_RT_HAS_LIBSTDCXX)
 
 # Linker flags.
 check_linker_flag("-Wl,-z,text" COMPILER_RT_HAS_Z_TEXT)
+check_linker_flag("-fuse-ld=lld" COMPILER_RT_HAS_FUSE_LD_LLD_FLAG)
 
 if(ANDROID)
   check_linker_flag("-Wl,-z,global" COMPILER_RT_HAS_Z_GLOBAL)

compiler-rt/test/hwasan/CMakeLists.txt

@@ -24,7 +24,9 @@ set(HWASAN_TEST_DEPS ${SANITIZER_COMMON_LIT_TEST_DEPS})
 if(NOT COMPILER_RT_STANDALONE_BUILD)
   list(APPEND HWASAN_TEST_DEPS hwasan)
   if(COMPILER_RT_HAS_LLD)
-    list(APPEND HWASAN_TEST_DEPS lld)
+    if (TARGET lld)
+      list(APPEND HWASAN_TEST_DEPS lld)
+    endif()
   endif()
 endif()
 

compiler-rt/test/msan/CMakeLists.txt

@@ -20,7 +20,9 @@ macro(add_msan_testsuite arch lld thinlto)
   endif()
   if (${lld})
     set(CONFIG_NAME "lld-${CONFIG_NAME}")
-    list(APPEND MSAN_TEST_DEPS lld)
+    if (TARGET lld)
+      list(APPEND MSAN_TEST_DEPS lld)
+    endif()
   endif()
   set(MSAN_TEST_USE_THINLTO ${thinlto})
   set(MSAN_TEST_USE_LLD ${lld})

compiler-rt/test/ubsan/CMakeLists.txt

@@ -8,7 +8,9 @@ macro(add_ubsan_testsuite test_mode sanitizer arch lld thinlto)
   set(CONFIG_NAME ${UBSAN_LIT_TEST_MODE})
   if (${lld})
     set(CONFIG_NAME ${CONFIG_NAME}-lld)
-    list(APPEND UBSAN_TEST_DEPS lld)
+    if (TARGET lld)
+      list(APPEND UBSAN_TEST_DEPS lld)
+    endif()
   endif()
   if (${thinlto})
     set(CONFIG_NAME ${CONFIG_NAME}-thinlto)