Index: projects/compiler-rt/lib/asan/CMakeLists.txt
===================================================================
--- projects/compiler-rt/lib/asan/CMakeLists.txt
+++ projects/compiler-rt/lib/asan/CMakeLists.txt
@@ -1,12 +1,5 @@
 # Build for the AddressSanitizer runtime support library.
 
-if(APPLE)
-# Don't set rpath for the ASan libraries. Developers are encouraged to ship
-# their binaries together with the corresponding ASan runtime libraries,
-# so they'll anyway need to fix the rpath and the install name.
-set(CMAKE_BUILD_WITH_INSTALL_RPATH OFF)
-endif()
-
 set(ASAN_SOURCES
   asan_allocator2.cc
   asan_activation.cc
Index: projects/compiler-rt/test/asan/TestCases/Darwin/interface_symbols_darwin.c
===================================================================
--- projects/compiler-rt/test/asan/TestCases/Darwin/interface_symbols_darwin.c
+++ projects/compiler-rt/test/asan/TestCases/Darwin/interface_symbols_darwin.c
@@ -5,9 +5,7 @@
 // RUN: %clang_asan -dead_strip -O2 %s -o %t.exe
 // RUN: rm -f %t.symbols %t.interface
 
-// RUN: nm -g `otool -L %t.exe | grep "asan_osx_dynamic.dylib" | \
-// RUN:                       tr -d '\011' | \
-// RUN:                       sed "s/.dylib.*/.dylib/"` \
+// RUN: nm -g `%clang_asan %s -fsanitize=address -### 2>&1 | grep "libclang_rt.asan_osx_dynamic.dylib" | sed -e 's/.*"\(.*libclang_rt.asan_osx_dynamic.dylib\)".*/\1/'` \
 // RUN:   | grep " T " | sed "s/.* T //" \
 // RUN:   | grep "__asan_" | sed "s/___asan_/__asan_/" \
 // RUN:   | sed -E "s/__asan_init_v[0-9]+/__asan_init/" \
Index: tools/clang/lib/Driver/ToolChains.h
===================================================================
--- tools/clang/lib/Driver/ToolChains.h
+++ tools/clang/lib/Driver/ToolChains.h
@@ -236,7 +236,8 @@
                          llvm::opt::ArgStringList &CmdArgs,
                          StringRef DarwinStaticLib,
                          bool AlwaysLink = false,
-                         bool IsEmbedded = false) const;
+                         bool IsEmbedded = false,
+                         bool AddRPath = false) const;
 
   /// }
   /// @name ToolChain Implementation
Index: tools/clang/lib/Driver/ToolChains.cpp
===================================================================
--- tools/clang/lib/Driver/ToolChains.cpp
+++ tools/clang/lib/Driver/ToolChains.cpp
@@ -292,16 +292,36 @@
 
 void MachO::AddLinkRuntimeLib(const ArgList &Args, ArgStringList &CmdArgs,
                               StringRef DarwinStaticLib, bool AlwaysLink,
-                              bool IsEmbedded) const {
-  SmallString<128> P(getDriver().ResourceDir);
-  llvm::sys::path::append(P, "lib", IsEmbedded ? "macho_embedded" : "darwin",
-                          DarwinStaticLib);
+                              bool IsEmbedded, bool AddRPath) const {
+  SmallString<128> Dir(getDriver().ResourceDir);
+  llvm::sys::path::append(Dir, "lib", IsEmbedded ? "macho_embedded" : "darwin");
 
+  SmallString<128> P(Dir);
+  llvm::sys::path::append(P, DarwinStaticLib);
+
   // For now, allow missing resource libraries to support developers who may
   // not have compiler-rt checked out or integrated into their build (unless
   // we explicitly force linking with this library).
   if (AlwaysLink || llvm::sys::fs::exists(P.str()))
     CmdArgs.push_back(Args.MakeArgString(P.str()));
+
+  // Adding the rpaths might negatively interact when other rpaths are involved,
+  // so we should make sure we add the rpaths last, after all user-specified
+  // rpaths. This is currently true from this place, but we need to be
+  // careful if this function is ever called before user's rpaths are emitted.
+  if (AddRPath) {
+    assert(DarwinStaticLib.endswith(".dylib") && "must be a dynamic library");
+
+    // Add @executable_path to rpath to support having the dylib copied with
+    // the executable.
+    CmdArgs.push_back("-rpath");
+    CmdArgs.push_back("@executable_path");
+
+    // Add the path to the resource dir to rpath to support using the dylib
+    // from the default location without copying.
+    CmdArgs.push_back("-rpath");
+    CmdArgs.push_back(Args.MakeArgString(Dir.str()));
+  }
 }
 
 void DarwinClang::AddLinkRuntimeLibArgs(const ArgList &Args,
@@ -379,12 +399,14 @@
       if (isTargetMacOS()) {
         AddLinkRuntimeLib(Args, CmdArgs,
                           "libclang_rt.asan_osx_dynamic.dylib",
-                          true);
+                          /*AlwaysLink*/ true, /*IsEmbedded*/ false,
+                          /*AddRPath*/ true);
       } else {
         if (isTargetIOSSimulator()) {
           AddLinkRuntimeLib(Args, CmdArgs,
                             "libclang_rt.asan_iossim_dynamic.dylib",
-                            true);
+                            /*AlwaysLink*/ true, /*IsEmbedded*/ false,
+                            /*AddRPath*/ true);
         }
       }
     }
Index: tools/clang/test/Driver/darwin-asan-rpath.c
===================================================================
--- tools/clang/test/Driver/darwin-asan-rpath.c
+++ tools/clang/test/Driver/darwin-asan-rpath.c
@@ -0,0 +1,7 @@
+// RUN: %clang -x c -target x86_64-apple-darwin -fsanitize=address %s -### 2>&1 | FileCheck --check-prefix=CHECK-OSX %s
+// CHECK-OSX: "{{.*}}/lib/darwin/libclang_rt.asan_osx_dynamic.dylib"
+// CHECK-OSX: "-rpath" "{{.*}}/lib/darwin"
+
+// RUN: %clang -x c -target x86_64-apple-darwin -mios-simulator-version-min=7.0 -fsanitize=address %s -### 2>&1 | FileCheck --check-prefix=CHECK-IOSSIM %s
+// CHECK-IOSSIM: "{{.*}}/lib/darwin/libclang_rt.asan_iossim_dynamic.dylib"
+// CHECK-IOSSIM: "-rpath" "{{.*}}/lib/darwin"