[arm] Recognize SXTB, SXTH, UXTB and UXTH.

test/cctest/test-disasm-arm.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 392 matching lines @@
             "e6e7201e       usat r2, #7, lr");
     COMPARE(usat(r3, 31, Operand(r4, LSL, 31)),
             "e6ff3f94       usat r3, #31, r4, lsl #31");
     COMPARE(usat(r8, 0, Operand(r5, ASR, 17)),
             "e6e088d5       usat r8, #0, r5, asr #17");
 
     COMPARE(pkhbt(r3, r4, Operand(r5, LSL, 17)),
             "e6843895       pkhbt r3, r4, r5, lsl #17");
     COMPARE(pkhtb(r3, r4, Operand(r5, ASR, 17)),
             "e68438d5       pkhtb r3, r4, r5, asr #17");
-    COMPARE(uxtb(r9, Operand(r10, ROR, 0)),
-            "e6ef907a       uxtb r9, r10");
-    COMPARE(uxtb(r3, Operand(r4, ROR, 8)),
-            "e6ef3474       uxtb r3, r4, ror #8");
-    COMPARE(uxtab(r3, r4, Operand(r5, ROR, 8)),
-            "e6e43475       uxtab r3, r4, r5, ror #8");
-    COMPARE(uxtb16(r3, Operand(r4, ROR, 8)),
-            "e6cf3474       uxtb16 r3, r4, ror #8");
+
+    COMPARE(sxtb(r1, r7, 0, eq), "06af1077       sxtbeq r1, r7");
+    COMPARE(sxtb(r0, r0, 8, ne), "16af0470       sxtbne r0, r0, ror #8");
+    COMPARE(sxtb(r9, r10, 16), "e6af987a       sxtb r9, r10, ror #16");
+    COMPARE(sxtb(r4, r3, 24), "e6af4c73       sxtb r4, r3, ror #24");
+
+    COMPARE(sxtab(r3, r4, r5), "e6a43075       sxtab r3, r4, r5");
+
+    COMPARE(sxth(r5, r0), "e6bf5070       sxth r5, r0");
+    COMPARE(sxth(r5, r9, 8), "e6bf5479       sxth r5, r9, ror #8");
+    COMPARE(sxth(r5, r9, 16, hi), "86bf5879       sxthhi r5, r9, ror #16");
+    COMPARE(sxth(r8, r9, 24, cc), "36bf8c79       sxthcc r8, r9, ror #24");
+
+    COMPARE(sxtah(r3, r4, r5, 16), "e6b43875       sxtah r3, r4, r5, ror #16");
+
+    COMPARE(uxtb(r9, r10), "e6ef907a       uxtb r9, r10");
+    COMPARE(uxtb(r3, r4, 8), "e6ef3474       uxtb r3, r4, ror #8");
+
+    COMPARE(uxtab(r3, r4, r5, 8), "e6e43475       uxtab r3, r4, r5, ror #8");
+
+    COMPARE(uxtb16(r3, r4, 8), "e6cf3474       uxtb16 r3, r4, ror #8");
+
+    COMPARE(uxth(r9, r10), "e6ff907a       uxth r9, r10");
+    COMPARE(uxth(r3, r4, 8), "e6ff3474       uxth r3, r4, ror #8");
+
+    COMPARE(uxtah(r3, r4, r5, 24), "e6f43c75       uxtah r3, r4, r5, ror #24");
   }
 
   COMPARE(smmla(r0, r1, r2, r3), "e7503211       smmla r0, r1, r2, r3");
   COMPARE(smmla(r10, r9, r8, r7), "e75a7819       smmla r10, r9, r8, r7");
 
   COMPARE(smmul(r0, r1, r2), "e750f211       smmul r0, r1, r2");
   COMPARE(smmul(r8, r9, r10), "e758fa19       smmul r8, r9, r10");
 
   VERIFY_RUN();
 }
@@ skipping 496 matching lines @@
             "e16dc7ff       strd ip, [sp, #-127]!");
 
     COMPARE(pld(MemOperand(r1, 0)),
             "f5d1f000       pld [r1]");
     COMPARE(pld(MemOperand(r2, 128)),
             "f5d2f080       pld [r2, #+128]");
   }
 
   VERIFY_RUN();
 }