Enables all startup code for arm64.

runtime/vm/disassembler_arm64.cc

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/disassembler.h"
 
 #include "vm/globals.h"  // Needed here to get TARGET_ARCH_ARM64.
 #if defined(TARGET_ARCH_ARM64)
 #include "platform/assert.h"
 
@@ skipping 108 matching lines @@
 // These condition names are defined in a way to match the native disassembler
 // formatting. See for example the command "objdump -d <binary file>".
 static const char* cond_names[kMaxCondition] = {
   "eq", "ne", "cs" , "cc" , "mi" , "pl" , "vs" , "vc" ,
   "hi", "ls", "ge", "lt", "gt", "le", "", "invalid",
 };
 
 
 // Print the condition guarding the instruction.
 void ARM64Decoder::PrintCondition(Instr* instr) {
-  Print(cond_names[instr->ConditionField()]);
+  if (instr->IsConditionalSelectOp()) {
+    Print(cond_names[instr->SelectConditionField()]);
+  } else {
+    Print(cond_names[instr->ConditionField()]);
+  }
 }
 
 
 // Print the register shift operands for the instruction. Generally used for
 // data processing instructions.
 void ARM64Decoder::PrintShiftExtendRm(Instr* instr) {
   int rm = instr->RmField();
   Shift shift = instr->ShiftTypeField();
   int shift_amount = instr->ShiftAmountField();
   Extend extend = instr->ExtendTypeField();
@@ skipping 697 matching lines @@
       Format(instr, "mul'sf, 'rd, 'rn, 'rm");
     } else {
       Format(instr, "madd'sf 'rd, 'rn, 'rm, 'ra");
     }
   } else {
     Unknown(instr);
   }
 }
 
 
+void ARM64Decoder::DecodeConditionalSelect(Instr* instr) {
+  if ((instr->Bits(29, 2) == 0) && (instr->Bits(10, 2) == 0)) {
+    Format(instr, "mov'sf'cond 'rd, 'rn, 'rm");
+  } else {
+    Unknown(instr);
+  }
+}
+
+
 void ARM64Decoder::DecodeDPRegister(Instr* instr) {
   if (instr->IsAddSubShiftExtOp()) {
     DecodeAddSubShiftExt(instr);
   } else if (instr->IsLogicalShiftOp()) {
     DecodeLogicalShift(instr);
   } else if (instr->IsMiscDP2SourceOp()) {
     DecodeMiscDP2Source(instr);
   } else if (instr->IsMiscDP3SourceOp()) {
     DecodeMiscDP3Source(instr);
+  } else if (instr->IsConditionalSelectOp()) {
+    DecodeConditionalSelect(instr);
   } else {
     Unknown(instr);
   }
 }
 
 
 void ARM64Decoder::DecodeDPSimd1(Instr* instr) {
   Unknown(instr);
 }
 
@@ skipping 65 matching lines @@
                                   human_buffer,
                                   sizeof(human_buffer),
                                   pc);
     pc += instruction_length;
   }
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM