[ASan] Rename the ASan dynamic RT

[timurrrr]

Summary

While working on PR20214 [-MD CRT support on Windows] it turned out that we use the same base name for static and shared/dynamic runtimes.
This doesn't work well on Windows as creating ABC.DLL automatically creates an import library called ABC.LIB which makes CMake crazy.

[samsonov]

LGTM

[timurrrr]

r216380, thanks!

cfe/trunk/lib/Driver/Tools.cpp

 
 /// If AddressSanitizer is enabled, add appropriate linker flags (Linux).
 /// This needs to be called before we add the C run-time (malloc, etc).
 static void addAsanRT(const ToolChain &TC, const ArgList &Args,
                       ArgStringList &CmdArgs, bool Shared, bool IsCXX) {
   if (Shared) {
     // Link dynamic runtime if necessary.
     SmallString<128> LibSanitizer =
-        getSanitizerRTLibName(TC, "asan", Shared);
+        getSanitizerRTLibName(TC, "asan_dynamic", Shared);
     CmdArgs.insert(CmdArgs.begin(), Args.MakeArgString(LibSanitizer));
   }
 
   // Do not link static runtime to DSOs or if compiling for Android.
   if (Args.hasArg(options::OPT_shared) ||
       (TC.getTriple().getEnvironment() == llvm::Triple::Android))
     return;
 

compiler-rt/trunk/lib/asan/CMakeLists.txt

foreach(arch ${ASAN_SUPPORTED_ARCH})
     if (COMPILER_RT_BUILD_SHARED_ASAN)
       add_compiler_rt_runtime(clang_rt.asan-preinit-${arch} ${arch} STATIC
         SOURCES $<TARGET_OBJECTS:RTAsan_preinit.${arch}>
         CFLAGS ${ASAN_CFLAGS}
         DEFS ${ASAN_COMMON_DEFINITIONS})
       add_dependencies(asan clang_rt.asan-preinit-${arch})
 
       add_compiler_rt_runtime(clang_rt.asan-dynamic-${arch} ${arch} SHARED
-        OUTPUT_NAME clang_rt.asan-${arch}
+        OUTPUT_NAME clang_rt.asan_dynamic-${arch}
         SOURCES $<TARGET_OBJECTS:RTAsan_dynamic.${arch}>
                 ${ASAN_COMMON_RUNTIME_OBJECTS}
         CFLAGS ${ASAN_DYNAMIC_CFLAGS}
         DEFS ${ASAN_DYNAMIC_DEFINITIONS})
       target_link_libraries(clang_rt.asan-dynamic-${arch} ${ASAN_DYNAMIC_LIBS})
       add_dependencies(asan clang_rt.asan-dynamic-${arch})
     endif()