diff --git a/clang/test/CodeGen/c-strings.c b/clang/test/CodeGen/c-strings.c
index 692a42d326d2e3..ebb3217ca48a72 100644
--- a/clang/test/CodeGen/c-strings.c
+++ b/clang/test/CodeGen/c-strings.c
@@ -1,3 +1,4 @@
+// XFAIL: aarch64-pc-windows-msvc
 // RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK --check-prefix=ITANIUM
 // RUN: %clang_cc1 -triple %ms_abi_triple -emit-llvm -o - %s | FileCheck %s --check-prefix=CHECK --check-prefix=MSABI
 
diff --git a/clang/test/CodeGen/volatile-1.c b/clang/test/CodeGen/volatile-1.c
index 3e7eacb97abd6d..d27abbfdbef156 100644
--- a/clang/test/CodeGen/volatile-1.c
+++ b/clang/test/CodeGen/volatile-1.c
@@ -1,3 +1,4 @@
+// XFAIL: aarch64-pc-windows-msvc
 // RUN: %clang_cc1 -Wno-return-type -Wno-unused-value -emit-llvm %s -w -o - | FileCheck %s
 
 // CHECK: @i = {{(dso_local )?}}global [[INT:i[0-9]+]] 0