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diff --git a/test/MC/ARM/arm-branch-errors.s b/test/MC/ARM/arm-branch-errors.s
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+++ b/test/MC/ARM/arm-branch-errors.s
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+@ RUN: not llvm-mc -triple=armv7-apple-darwin < %s 2>&1 | FileCheck %s
+
+@------------------------------------------------------------------------------
+@ Branch targets destined for ARM mode must == 0 (mod 4), otherwise (mod 2).
+@------------------------------------------------------------------------------
+
+ b #2
+ bl #2
+ beq #2
+
+@ CHECK: error: instruction requires: thumb
+@ CHECK: b #2
+@ CHECK: error: instruction requires: thumb
+@ CHECK: bl #2
+@ CHECK: error: instruction requires: thumb
+@ CHECK: beq #2