diff --git a/compiler/common_compiler_test.h b/compiler/common_compiler_test.h
index 98dcf20..0683577 100644
--- a/compiler/common_compiler_test.h
+++ b/compiler/common_compiler_test.h
@@ -117,25 +117,6 @@
   std::list<std::vector<uint8_t>> header_code_and_maps_chunks_;
 };
 
-// TODO: When read barrier works with all Optimizing back ends, get rid of this.
-#define TEST_DISABLED_FOR_READ_BARRIER_WITH_OPTIMIZING_FOR_UNSUPPORTED_INSTRUCTION_SETS() \
-  if (kUseReadBarrier && GetCompilerKind() == Compiler::kOptimizing) {                    \
-    switch (GetInstructionSet()) {                                                        \
-      case kArm64:                                                                        \
-      case kThumb2:                                                                       \
-      case kX86:                                                                          \
-      case kX86_64:                                                                       \
-        /* Instruction set has read barrier support. */                                   \
-        break;                                                                            \
-                                                                                          \
-      default:                                                                            \
-        /* Instruction set does not have barrier support. */                              \
-        printf("WARNING: TEST DISABLED FOR READ BARRIER WITH OPTIMIZING "                 \
-               "FOR THIS INSTRUCTION SET\n");                                             \
-        return;                                                                           \
-    }                                                                                     \
-  }
-
 }  // namespace art
 
 #endif  // ART_COMPILER_COMMON_COMPILER_TEST_H_
diff --git a/compiler/driver/compiler_driver_test.cc b/compiler/driver/compiler_driver_test.cc
index 35aa1ee..fa1b3a3 100644
--- a/compiler/driver/compiler_driver_test.cc
+++ b/compiler/driver/compiler_driver_test.cc
@@ -148,7 +148,6 @@
 }
 
 TEST_F(CompilerDriverTest, AbstractMethodErrorStub) {
-  TEST_DISABLED_FOR_READ_BARRIER_WITH_OPTIMIZING_FOR_UNSUPPORTED_INSTRUCTION_SETS();
   jobject class_loader;
   {
     ScopedObjectAccess soa(Thread::Current());
@@ -191,7 +190,6 @@
 };
 
 TEST_F(CompilerDriverMethodsTest, Selection) {
-  TEST_DISABLED_FOR_READ_BARRIER_WITH_OPTIMIZING_FOR_UNSUPPORTED_INSTRUCTION_SETS();
   Thread* self = Thread::Current();
   jobject class_loader;
   {
@@ -299,7 +297,6 @@
 };
 
 TEST_F(CompilerDriverProfileTest, ProfileGuidedCompilation) {
-  TEST_DISABLED_FOR_READ_BARRIER_WITH_OPTIMIZING_FOR_UNSUPPORTED_INSTRUCTION_SETS();
   Thread* self = Thread::Current();
   jobject class_loader;
   {
diff --git a/compiler/optimizing/optimizing_compiler.cc b/compiler/optimizing/optimizing_compiler.cc
index eb88fde..e542cbb 100644
--- a/compiler/optimizing/optimizing_compiler.cc
+++ b/compiler/optimizing/optimizing_compiler.cc
@@ -449,17 +449,6 @@
       || instruction_set == kX86_64;
 }
 
-// Read barrier are supported on ARM, ARM64, x86 and x86-64 at the moment.
-// TODO: Add support for other architectures and remove this function
-static bool InstructionSetSupportsReadBarrier(InstructionSet instruction_set) {
-  return instruction_set == kArm64
-      || instruction_set == kThumb2
-      || instruction_set == kMips
-      || instruction_set == kMips64
-      || instruction_set == kX86
-      || instruction_set == kX86_64;
-}
-
 // Strip pass name suffix to get optimization name.
 static std::string ConvertPassNameToOptimizationName(const std::string& pass_name) {
   size_t pos = pass_name.find(kPassNameSeparator);
@@ -914,12 +903,6 @@
     return nullptr;
   }
 
-  // When read barriers are enabled, do not attempt to compile for
-  // instruction sets that have no read barrier support.
-  if (kEmitCompilerReadBarrier && !InstructionSetSupportsReadBarrier(instruction_set)) {
-    return nullptr;
-  }
-
   if (Compiler::IsPathologicalCase(*code_item, method_idx, dex_file)) {
     MaybeRecordStat(MethodCompilationStat::kNotCompiledPathological);
     return nullptr;
@@ -1110,13 +1093,10 @@
 
   if (kIsDebugBuild &&
       IsCompilingWithCoreImage() &&
-      IsInstructionSetSupported(compiler_driver->GetInstructionSet()) &&
-      (!kEmitCompilerReadBarrier ||
-       InstructionSetSupportsReadBarrier(compiler_driver->GetInstructionSet()))) {
+      IsInstructionSetSupported(compiler_driver->GetInstructionSet())) {
     // For testing purposes, we put a special marker on method names
-    // that should be compiled with this compiler (when the the
-    // instruction set is supported -- and has support for read
-    // barriers, if they are enabled). This makes sure we're not
+    // that should be compiled with this compiler (when the
+    // instruction set is supported). This makes sure we're not
     // regressing.
     std::string method_name = dex_file.PrettyMethod(method_idx);
     bool shouldCompile = method_name.find("$opt$") != std::string::npos;
diff --git a/runtime/reflection_test.cc b/runtime/reflection_test.cc
index e254dfe..2f70ded 100644
--- a/runtime/reflection_test.cc
+++ b/runtime/reflection_test.cc
@@ -509,7 +509,6 @@
 };
 
 TEST_F(ReflectionTest, StaticMainMethod) {
-  TEST_DISABLED_FOR_READ_BARRIER_WITH_OPTIMIZING_FOR_UNSUPPORTED_INSTRUCTION_SETS();
   ScopedObjectAccess soa(Thread::Current());
   jobject jclass_loader = LoadDex("Main");
   StackHandleScope<1> hs(soa.Self());
diff --git a/test/run-test b/test/run-test
index 91ffdfa..e46099d 100755
--- a/test/run-test
+++ b/test/run-test
@@ -716,36 +716,13 @@
 
 export TEST_NAME=`basename ${test_dir}`
 
-# arch_supports_read_barrier ARCH
-# -------------------------------
-# Return whether the Optimizing compiler has read barrier support for ARCH.
-function arch_supports_read_barrier() {
-  # Optimizing has read barrier support for ARM, ARM64, x86 and x86-64 at the
-  # moment.
-  [ "x$1" = xarm ] || [ "x$1" = xarm64 ] || [ "x$1" = xx86 ] || [ "x$1" = xx86_64 ]
-}
-
 # Tests named '<number>-checker-*' will also have their CFGs verified with
 # Checker when compiled with Optimizing on host.
 if [[ "$TEST_NAME" =~ ^[0-9]+-checker- ]]; then
   if [ "$runtime" = "art" -a "$image_suffix" = "" -a "$USE_JACK" = "true" ]; then
-    # Optimizing has read barrier support for certain architectures
-    # only. On other architectures, compiling is disabled when read
-    # barriers are enabled, meaning that we do not produce a CFG file
-    # as a side-effect of compilation, thus the Checker assertions
-    # cannot be checked. Disable Checker for those cases.
-    #
-    # TODO: Enable Checker when read barrier support is added to more
-    # architectures (b/12687968).
-    if [ "x$ART_USE_READ_BARRIER" != xfalse ]                  \
-       && (([ "x$host_mode" = "xyes" ]                         \
-            && ! arch_supports_read_barrier "$host_arch_name") \
-           || ([ "x$target_mode" = "xyes" ]                    \
-               && ! arch_supports_read_barrier "$target_arch_name")); then
-      run_checker="no"
     # In no-prebuild mode, the compiler is only invoked if both dex2oat and
     # patchoat are available. Disable Checker otherwise (b/22552692).
-    elif [ "$prebuild_mode" = "yes" ] \
+    if [ "$prebuild_mode" = "yes" ] \
          || [ "$have_patchoat" = "yes" -a "$have_dex2oat" = "yes" ]; then
       run_checker="yes"