Thumb2 assembly parsing and encoding for SSUB16/SSUB8.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139931 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/MC/ARM/basic-thumb2-instructions.s b/test/MC/ARM/basic-thumb2-instructions.s
index d44d65d..5117bf8 100644
--- a/test/MC/ARM/basic-thumb2-instructions.s
+++ b/test/MC/ARM/basic-thumb2-instructions.s
@@ -2093,6 +2093,22 @@
 
 
 @------------------------------------------------------------------------------
+@ SSUB16/SSUB8
+@------------------------------------------------------------------------------
+        ssub16 r1, r0, r6
+        ssub8 r9, r2, r4
+        ite ne
+        ssub16ne r5, r3, r2
+        ssub8eq r5, r1, r2
+
+@ CHECK: ssub16	r1, r0, r6              @ encoding: [0xd0,0xfa,0x06,0xf1]
+@ CHECK: ssub8	r9, r2, r4              @ encoding: [0xc2,0xfa,0x04,0xf9]
+@ CHECK: ite	ne                      @ encoding: [0x14,0xbf]
+@ CHECK: ssub16ne	r5, r3, r2      @ encoding: [0xd3,0xfa,0x02,0xf5]
+@ CHECK: ssub8eq	r5, r1, r2      @ encoding: [0xc1,0xfa,0x02,0xf5]
+
+
+@------------------------------------------------------------------------------
 @ SUB (register)
 @------------------------------------------------------------------------------
         sub.w r5, r2, r12, rrx