Index: lib/CodeGen/BackendUtil.cpp
===================================================================
--- lib/CodeGen/BackendUtil.cpp
+++ lib/CodeGen/BackendUtil.cpp
@@ -196,9 +196,8 @@
 static bool asanUseGlobalsGC(const Triple &T, const CodeGenOptions &CGOpts) {
   switch (T.getObjectFormat()) {
   case Triple::MachO:
-    return true;
   case Triple::COFF:
-    return CGOpts.DataSections;
+    return true;
   case Triple::ELF:
     return CGOpts.DataSections && !CGOpts.DisableIntegratedAS;
   default:
Index: test/CodeGen/asan-globals-gc.cpp
===================================================================
--- test/CodeGen/asan-globals-gc.cpp
+++ test/CodeGen/asan-globals-gc.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsanitize=address -emit-llvm -o - -triple x86_64-windows-msvc %s | FileCheck %s --check-prefix=WITHOUT-GC
+// RUN: %clang_cc1 -fsanitize=address -emit-llvm -o - -triple x86_64-windows-msvc %s | FileCheck %s --check-prefix=WITH-GC
 // RUN: %clang_cc1 -fsanitize=address -emit-llvm -o - -triple x86_64-windows-msvc -fdata-sections %s | FileCheck %s --check-prefix=WITH-GC
 
 int global;