diff --git a/test/MC/Disassembler/ARM/arm-tests.txt b/test/MC/Disassembler/ARM/arm-tests.txt
index 197b9b0..d707565 100644
--- a/test/MC/Disassembler/ARM/arm-tests.txt
+++ b/test/MC/Disassembler/ARM/arm-tests.txt
@@ -136,3 +136,6 @@
 
 # CHECK: blxeq r5
 0x35 0xff 0x2f 0x01
+
+# CHECK: bx r12
+0x1c 0xff 0x2f 0xe1
diff --git a/utils/TableGen/ARMDecoderEmitter.cpp b/utils/TableGen/ARMDecoderEmitter.cpp
index cec6b9a..a2403e6 100644
--- a/utils/TableGen/ARMDecoderEmitter.cpp
+++ b/utils/TableGen/ARMDecoderEmitter.cpp
@@ -1631,7 +1631,7 @@
     if (Name == "B") return false;
 
     // Ignore the non-Darwin BL instructions and the TPsoft (TLS) instruction.
-    if (Name == "BL" || Name == "BL_pred" || Name == "BLX" || Name == "BX" ||
+    if (Name == "BL" || Name == "BL_pred" || Name == "BLX" ||
         Name == "BLX_pred" || Name == "TPsoft")
       return false;