diff --git a/clang/test/CodeGenObjC/objc2-ivar-assign.m b/clang/test/CodeGenObjC/objc2-ivar-assign.m
index af768007212b..05a7b353cfeb 100644
--- a/clang/test/CodeGenObjC/objc2-ivar-assign.m
+++ b/clang/test/CodeGenObjC/objc2-ivar-assign.m
@@ -1,6 +1,9 @@
 // RUN: %clang_cc1 -fobjc-gc -emit-llvm -o %t %s
 // RUN: grep objc_assign_ivar %t | count 6
 
+// PR13820
+// REQUIRES: LP64
+
 @interface I @end
 
 typedef I TI;
diff --git a/clang/test/CodeGenObjC/property.m b/clang/test/CodeGenObjC/property.m
index 16881d608bf2..f72b52b3ebf8 100644
--- a/clang/test/CodeGenObjC/property.m
+++ b/clang/test/CodeGenObjC/property.m
@@ -1,5 +1,8 @@
 // RUN: %clang_cc1 -emit-llvm -o - %s | FileCheck %s
 
+// PR13820
+// REQUIRES: LP64
+
 // TODO: actually test most of this instead of just emitting it
 
 int printf(const char *, ...);
diff --git a/clang/test/CodeGenObjC/synthesize_ivar-cont-class.m b/clang/test/CodeGenObjC/synthesize_ivar-cont-class.m
index 6bc7ac8170ef..98227023318e 100644
--- a/clang/test/CodeGenObjC/synthesize_ivar-cont-class.m
+++ b/clang/test/CodeGenObjC/synthesize_ivar-cont-class.m
@@ -1,6 +1,9 @@
 // RUN: %clang_cc1 -emit-llvm -o %t %s
 // RUN: grep '@"OBJC_IVAR_$_XCOrganizerDeviceNodeInfo.viewController"' %t
 
+// PR13820
+// REQUIRES: LP64
+
 @interface XCOrganizerNodeInfo
 @property (readonly, retain) id viewController;
 @end
diff --git a/clang/test/CodeGenObjC/synthesize_ivar.m b/clang/test/CodeGenObjC/synthesize_ivar.m
index e4fbe101a648..92f6096b7e4d 100644
--- a/clang/test/CodeGenObjC/synthesize_ivar.m
+++ b/clang/test/CodeGenObjC/synthesize_ivar.m
@@ -1,5 +1,8 @@
 // RUN: %clang_cc1 -emit-llvm -o %t %s
 
+// PR13820
+// REQUIRES: LP64
+
 @interface I
 @property int IP;
 @end