diff --git a/test/MC/ARM/basic-thumb-instructions.s b/test/MC/ARM/basic-thumb-instructions.s
index b5a1f31fdab..1fe42f8978b 100644
--- a/test/MC/ARM/basic-thumb-instructions.s
+++ b/test/MC/ARM/basic-thumb-instructions.s
@@ -96,3 +96,13 @@ _func:
         bics r1, r6
 
 @ CHECK: bics	r1, r6                  @ encoding: [0xb1,0x43]
+
+
+@------------------------------------------------------------------------------
+@ BKPT
+@------------------------------------------------------------------------------
+        bkpt #0
+        bkpt #255
+
+@ CHECK: bkpt	#0                      @ encoding: [0x00,0xbe]
+@ CHECK: bkpt	#255                    @ encoding: [0xff,0xbe]
diff --git a/test/MC/ARM/thumb-diagnostics.s b/test/MC/ARM/thumb-diagnostics.s
index 8d8edcbfedf..99d85fedfaf 100644
--- a/test/MC/ARM/thumb-diagnostics.s
+++ b/test/MC/ARM/thumb-diagnostics.s
@@ -29,3 +29,13 @@
 @ CHECK-ERRORS: error: invalid operand for instruction
 @ CHECK-ERRORS:         asrs r2, r3, #0
 @ CHECK-ERRORS:                      ^
+
+@ Out of range immediates for BKPT instruction.
+        bkpt #256
+        bkpt #-1
+error: invalid operand for instruction
+        bkpt #256
+             ^
+error: invalid operand for instruction
+        bkpt #-1
+             ^