diff --git a/clang/test/CodeGen/CFStrings.c b/clang/test/CodeGen/CFStrings.c
index 7d8959328ce4..d55afc25dc4b 100644
--- a/clang/test/CodeGen/CFStrings.c
+++ b/clang/test/CodeGen/CFStrings.c
@@ -1,3 +1,5 @@
+// REQUIRES: arm-registered-target,x86-registered-target
+
 // RUN: %clang_cc1 -triple thumbv7-windows -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-COFF
 // RUN: %clang_cc1 -triple i686-windows -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-COFF
 // RUN: %clang_cc1 -triple x86_64-windows -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-COFF
diff --git a/clang/test/CodeGen/cfstring.c b/clang/test/CodeGen/cfstring.c
index 97d39b6a6595..f0862b99b43d 100644
--- a/clang/test/CodeGen/cfstring.c
+++ b/clang/test/CodeGen/cfstring.c
@@ -1,9 +1,11 @@
-// RUN: %clang_cc1 -emit-llvm %s -o %t
+// REQUIRES: x86-registered-target
+
+// RUN: %clang_cc1 -triple x86_64-macho -emit-llvm %s -o %t
 
 // <rdar://problem/10657500>: Check that the backing store of CFStrings are
 // constant with the -fwritable-strings flag.
 //
-// RUN: %clang_cc1 -fwritable-strings -emit-llvm %s -o - | FileCheck %s
+// RUN: %clang_cc1 -triple x86_64-macho -fwritable-strings -emit-llvm %s -o - | FileCheck %s
 //
 // CHECK: @.str = private unnamed_addr constant [14 x i8] c"Hello, World!\00", section "__TEXT,__cstring,cstring_literals", align 1
 // CHECK: @.str.1 = private unnamed_addr constant [7 x i8] c"yo joe\00", section "__TEXT,__cstring,cstring_literals", align 1
diff --git a/clang/test/CodeGenObjC/2009-08-05-utf16.m b/clang/test/CodeGenObjC/2009-08-05-utf16.m
index 18ac1db79e24..92394d9383eb 100644
--- a/clang/test/CodeGenObjC/2009-08-05-utf16.m
+++ b/clang/test/CodeGenObjC/2009-08-05-utf16.m
@@ -1,4 +1,6 @@
-// RUN: %clang_cc1 -emit-llvm -w -x objective-c %s -o - | FileCheck %s
+// REQUIRES: x86-registered-target
+
+// RUN: %clang_cc1 -triple x86_64-macho -emit-llvm -w -x objective-c %s -o - | FileCheck %s
 // rdar://7095855 rdar://7115749
 
 // CHECK: private unnamed_addr constant [6 x i16] [i16 105, i16 80, i16 111, i16 100, i16 8482, i16 0], section "__TEXT,__ustring", align 2
diff --git a/clang/test/CodeGenObjC/constant-strings.m b/clang/test/CodeGenObjC/constant-strings.m
index 0a6549637358..a1daa9284b81 100644
--- a/clang/test/CodeGenObjC/constant-strings.m
+++ b/clang/test/CodeGenObjC/constant-strings.m
@@ -1,15 +1,17 @@
-// RUN: %clang_cc1 -emit-llvm -o %t %s
+// REQUIRES: x86-registered-target
+
+// RUN: %clang_cc1 -triple x86_64-macho -emit-llvm -o %t %s
 // RUN: FileCheck --check-prefix=CHECK-NEXT < %t %s
 
 // Check that we set alignment 1 on the string.
 //
 // CHECK-NEXT: @.str = {{.*}}constant [13 x i8] c"Hello World!\00", section "__TEXT,__cstring,cstring_literals", align 1
 
-// RUN: %clang_cc1 -fobjc-runtime=gcc -emit-llvm -o %t %s
+// RUN: %clang_cc1 -triple x86_64-macho -fobjc-runtime=gcc -emit-llvm -o %t %s
 // RUN: FileCheck --check-prefix=CHECK-GNU < %t %s
 // CHECK-GNU: NXConstantString
 
-// RUN: %clang_cc1 -fobjc-runtime=gcc -fconstant-string-class NSConstantString -emit-llvm -o %t %s
+// RUN: %clang_cc1 -triple x86_64-macho -fobjc-runtime=gcc -fconstant-string-class NSConstantString -emit-llvm -o %t %s
 // RUN: FileCheck --check-prefix=CHECK-GNU-WITH-CLASS < %t %s
 // CHECK-GNU-WITH-CLASS: NSConstantString
 id a = @"Hello World!";