ARM: Implement memcpy using NEON.

test/cctest/test-disasm-arm.cc

Index: test/cctest/test-disasm-arm.cc
diff --git a/test/cctest/test-disasm-arm.cc b/test/cctest/test-disasm-arm.cc
index 85b472d30a31445bb148de8282510b62127b28d3..9d6623ea9a255897a3fc9cb4d51ab0e7cb80fb52 100644
--- a/test/cctest/test-disasm-arm.cc
+++ b/test/cctest/test-disasm-arm.cc
@@ -405,6 +405,17 @@ TEST(Type3) {
             "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(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");
   }
 
   VERIFY_RUN();
@@ -662,6 +673,23 @@ TEST(Vfp) {
 }
 
 
+TEST(Neon) {
+  SET_UP();
+
+  if (CpuFeatures::IsSupported(NEON)) {
+    CpuFeatureScope scope(&assm, NEON);
+      COMPARE(vld1(Neon8, NeonListOperand(d4, 4), NeonMemOperand(r1)),
+              "f421420f       vld1.8 {d4, d5, d6, d7}, [r1]");
+      COMPARE(vst1(Neon16, NeonListOperand(d17, 4), NeonMemOperand(r9)),
+              "f449124f       vst1.16 {d17, d18, d19, d20}, [r9]");
+      COMPARE(vmovl(NeonU8, q4, d2),
+              "f3884a12       vmovl.u8 q4, d2");
+  }
+
+  VERIFY_RUN();
+}
+
+
 TEST(LoadStore) {
   SET_UP();
 
@@ -858,6 +886,11 @@ TEST(LoadStore) {
             "e1eba7ff       strd r10, [fp, #+127]!");
     COMPARE(strd(ip, sp, MemOperand(sp, -127, PreIndex)),
             "e16dc7ff       strd ip, [sp, #-127]!");
+
+    COMPARE(pld(MemOperand(r1, 0)),
+            "f5d1f000       pld [r1]");
+    COMPARE(pld(MemOperand(r2, 128)),
+            "f5d2f080       pld [r2, #+128]");
   }
 
   VERIFY_RUN();