Replace some calls to MemCopy with small constant sizes with memcpy

src/mips/simulator-mips.cc

Index: src/mips/simulator-mips.cc
diff --git a/src/mips/simulator-mips.cc b/src/mips/simulator-mips.cc
index e0b074905e19536e2e3f73653c3edec831d5724d..024b44c2e4ac3e377ed5a9d323ac8739e63962d6 100644
--- a/src/mips/simulator-mips.cc
+++ b/src/mips/simulator-mips.cc
@@ -845,7 +845,7 @@ void Simulator::CheckICache(v8::internal::HashMap* i_cache,
                        Instruction::kInstrSize));
   } else {
     // Cache miss.  Load memory into the cache.
-    MemCopy(cached_line, line, CachePage::kLineLength);
+    memcpy(cached_line, line, CachePage::kLineLength);
     *cache_valid_byte = CachePage::LINE_VALID;
   }
 }
@@ -1047,8 +1047,8 @@ double Simulator::get_double_from_register_pair(int reg) {
   // Read the bits from the unsigned integer register_[] array
   // into the double precision floating point value and return it.
   char buffer[2 * sizeof(registers_[0])];
-  MemCopy(buffer, &registers_[reg], 2 * sizeof(registers_[0]));
-  MemCopy(&dm_val, buffer, 2 * sizeof(registers_[0]));
+  memcpy(buffer, &registers_[reg], 2 * sizeof(registers_[0]));
+  memcpy(&dm_val, buffer, 2 * sizeof(registers_[0]));
   return(dm_val);
 }
 
@@ -1096,14 +1096,14 @@ void Simulator::GetFpArgs(double* x, double* y, int32_t* z) {
     // Registers a0 and a1 -> x.
     reg_buffer[0] = get_register(a0);
     reg_buffer[1] = get_register(a1);
-    MemCopy(x, buffer, sizeof(buffer));
+    memcpy(x, buffer, sizeof(buffer));
     // Registers a2 and a3 -> y.
     reg_buffer[0] = get_register(a2);
     reg_buffer[1] = get_register(a3);
-    MemCopy(y, buffer, sizeof(buffer));
+    memcpy(y, buffer, sizeof(buffer));
     // Register 2 -> z.
     reg_buffer[0] = get_register(a2);
-    MemCopy(z, buffer, sizeof(*z));
+    memcpy(z, buffer, sizeof(*z));
   }
 }
 
@@ -1115,7 +1115,7 @@ void Simulator::SetFpResult(const double& result) {
   } else {
     char buffer[2 * sizeof(registers_[0])];
     int32_t* reg_buffer = reinterpret_cast<int32_t*>(buffer);
-    MemCopy(buffer, &result, sizeof(buffer));
+    memcpy(buffer, &result, sizeof(buffer));
     // Copy result to v0 and v1.
     set_register(v0, reg_buffer[0]);
     set_register(v1, reg_buffer[1]);
@@ -2887,9 +2887,9 @@ double Simulator::CallFP(byte* entry, double d0, double d1) {
   } else {
     int buffer[2];
     ASSERT(sizeof(buffer[0]) * 2 == sizeof(d0));
-    MemCopy(buffer, &d0, sizeof(d0));
+    memcpy(buffer, &d0, sizeof(d0));
     set_dw_register(a0, buffer);
-    MemCopy(buffer, &d1, sizeof(d1));
+    memcpy(buffer, &d1, sizeof(d1));
     set_dw_register(a2, buffer);
   }
   CallInternal(entry);