Add graph intrinsics for many math library functions:

runtime/vm/intrinsifier_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/globals.h"  // Needed here to get TARGET_ARCH_ARM64.
 #if defined(TARGET_ARCH_ARM64)
 
 #include "vm/intrinsifier.h"
 
 #include "vm/assembler.h"
@@ skipping 13 matching lines @@
 // if the intrinsified method always executes a return.
 // The FP register should not be modified, because it is used by the profiler.
 // The PP and THR registers (see constants_arm64.h) must be preserved.
 
 #define __ assembler->
 
 
 intptr_t Intrinsifier::ParameterSlotFromSp() { return -1; }
 
 
+void Intrinsifier::IntrinsicCallPrologue(Assembler* assembler) {
+  assembler->Comment("IntrinsicCallPrologue");
+  assembler->mov(CALLEE_SAVED_TEMP, LR);
+  assembler->mov(CALLEE_SAVED_TEMP2, R4);
+}
+
+
+void Intrinsifier::IntrinsicCallEpilogue(Assembler* assembler) {
+  assembler->Comment("IntrinsicCallEpilogue");
+  assembler->mov(LR, CALLEE_SAVED_TEMP);
+  assembler->mov(R4, CALLEE_SAVED_TEMP2);
+}
+
+
 // Intrinsify only for Smi value and index. Non-smi values need a store buffer
 // update. Array length is always a Smi.
 void Intrinsifier::ObjectArraySetIndexed(Assembler* assembler) {
   if (Isolate::Current()->type_checks()) {
     return;
   }
 
   Label fall_through;
   __ ldr(R1, Address(SP, 1 * kWordSize));  // Index.
   __ tsti(R1, Immediate(kSmiTagMask));
@@ skipping 2152 matching lines @@
 
 void Intrinsifier::Profiler_getCurrentTag(Assembler* assembler) {
   __ LoadIsolate(R0);
   __ ldr(R0, Address(R0, Isolate::current_tag_offset()));
   __ ret();
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_ARM64