Thumb2 assembly parsing and encoding for SMLAD/SMLADX.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@139884 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/MC/ARM/basic-thumb2-instructions.s b/test/MC/ARM/basic-thumb2-instructions.s
index 2299045..13b71b4 100644
--- a/test/MC/ARM/basic-thumb2-instructions.s
+++ b/test/MC/ARM/basic-thumb2-instructions.s
@@ -1771,6 +1771,22 @@
 
 
 @------------------------------------------------------------------------------
+@ SMLAD/SMLADX
+@------------------------------------------------------------------------------
+        smlad r2, r3, r5, r8
+        smladx r2, r3, r5, r8
+        itt hi
+        smladhi r2, r3, r5, r8
+        smladxhi r2, r3, r5, r8
+
+@ CHECK: smlad	r2, r3, r5, r8          @ encoding: [0x23,0xfb,0x05,0x82]
+@ CHECK: smladx	r2, r3, r5, r8          @ encoding: [0x23,0xfb,0x15,0x82]
+@ CHECK: itt	hi                      @ encoding: [0x84,0xbf]
+@ CHECK: smladhi r2, r3, r5, r8         @ encoding: [0x23,0xfb,0x05,0x82]
+@ CHECK: smladxhi	r2, r3, r5, r8  @ encoding: [0x23,0xfb,0x15,0x82]
+
+
+@------------------------------------------------------------------------------
 @ SUB (register)
 @------------------------------------------------------------------------------
         sub.w r5, r2, r12, rrx