Optimistically inline Math.sqrt as unboxed sqrtsd instruction.

runtime/vm/intermediate_language.cc

 // Copyright (c) 2012, 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/intermediate_language.h"
 
 #include "vm/bit_vector.h"
 #include "vm/dart_entry.h"
 #include "vm/flow_graph_allocator.h"
 #include "vm/flow_graph_builder.h"
@@ skipping 1041 matching lines @@
 intptr_t BinaryMintOpInstr::ResultCid() const {
   return kMintCid;
 }
 
 
 RawAbstractType* UnboxedDoubleBinaryOpInstr::CompileType() const {
   return Type::Double();
 }
 
 
+RawAbstractType* MathSqrtInstr::CompileType() const {
+  return Type::Double();
+}
+
+
 RawAbstractType* UnboxDoubleInstr::CompileType() const {
   return Type::null();
 }
 
 
 intptr_t BoxDoubleInstr::ResultCid() const {
   return kDoubleCid;
 }
 
 
@@ skipping 389 matching lines @@
                                  locs());
 }
 
 
 LocationSummary* StaticCallInstr::MakeLocationSummary() const {
   return MakeCallSummary();
 }
 
 
 void StaticCallInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
-  Label done;
-  if (recognized() == MethodRecognizer::kMathSqrt) {
-    compiler->GenerateInlinedMathSqrt(&done);
-    // Falls through to static call when operand type is not double or smi.
-  }
   compiler->GenerateStaticCall(deopt_id(),
                                token_pos(),
                                function(),
                                ArgumentCount(),
                                argument_names(),
                                locs());
-  __ Bind(&done);
 }
 
 
 void AssertAssignableInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   if (!is_eliminated()) {
     compiler->GenerateAssertAssignable(token_pos(),
                                        dst_type(),
                                        dst_name(),
                                        locs());
   }
@@ skipping 161 matching lines @@
     value->set_use_index(use_index++);
     value->AddToEnvUseList();
   }
   instr->set_env(copy);
 }
 
 
 #undef __
 
 }  // namespace dart