Add double unary operation (negate).

runtime/vm/intermediate_language_x64.cc

 // Copyright (c) 2013, 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_X64.
 #if defined(TARGET_ARCH_X64)
 
 #include "vm/intermediate_language.h"
 
 #include "vm/dart_entry.h"
@@ skipping 3758 matching lines @@
 
 
 LocationSummary* UnarySmiOpInstr::MakeLocationSummary() const {
   const intptr_t kNumInputs = 1;
   return LocationSummary::Make(kNumInputs,
                                Location::SameAsFirstInput(),
                                LocationSummary::kNoCall);
 }
 
 
+void UnarySmiOpInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
+  Register value = locs()->in(0).reg();
+  ASSERT(value == locs()->out().reg());
+  switch (op_kind()) {
+    case Token::kNEGATE: {
+      Label* deopt = compiler->AddDeoptStub(deopt_id(),
+                                            kDeoptUnaryOp);
+      __ negq(value);
+      __ j(OVERFLOW, deopt);
+      if (FLAG_throw_on_javascript_int_overflow) {
+        EmitJavascriptOverflowCheck(compiler, range(), deopt, value);
+      }
+      break;
+    }
+    case Token::kBIT_NOT:
+      __ notq(value);
+      __ andq(value, Immediate(~kSmiTagMask));  // Remove inverted smi-tag.
+      break;
+    default:
+      UNREACHABLE();
+  }
+}
+
+
+LocationSummary* UnaryDoubleOpInstr::MakeLocationSummary() const {
+  const intptr_t kNumInputs = 1;
+  const intptr_t kNumTemps = 0;
+  LocationSummary* summary =
+      new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall);
+  summary->set_in(0, Location::RequiresFpuRegister());
+  summary->set_out(Location::SameAsFirstInput());
+  return summary;
+}
+
+
+void UnaryDoubleOpInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
+  XmmRegister value = locs()->in(0).fpu_reg();
+  ASSERT(locs()->out().fpu_reg() == value);
+  __ DoubleNegate(value);
+}
+
+
 LocationSummary* MathMinMaxInstr::MakeLocationSummary() const {
   if (result_cid() == kDoubleCid) {
     const intptr_t kNumInputs = 2;
     const intptr_t kNumTemps = 1;
     LocationSummary* summary =
         new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall);
     summary->set_in(0, Location::RequiresFpuRegister());
     summary->set_in(1, Location::RequiresFpuRegister());
     // Reuse the left register so that code can be made shorter.
     summary->set_out(Location::SameAsFirstInput());
@@ skipping 69 matching lines @@
   __ cmpq(left, right);
   ASSERT(result == left);
   if (is_min) {
     __ cmovgeq(result, right);
   } else {
     __ cmovlessq(result, right);
   }
 }
 
 
-void UnarySmiOpInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
-  Register value = locs()->in(0).reg();
-  ASSERT(value == locs()->out().reg());
-  switch (op_kind()) {
-    case Token::kNEGATE: {
-      Label* deopt = compiler->AddDeoptStub(deopt_id(),
-                                            kDeoptUnaryOp);
-      __ negq(value);
-      __ j(OVERFLOW, deopt);
-      if (FLAG_throw_on_javascript_int_overflow) {
-        EmitJavascriptOverflowCheck(compiler, range(), deopt, value);
-      }
-      break;
-    }
-    case Token::kBIT_NOT:
-      __ notq(value);
-      __ andq(value, Immediate(~kSmiTagMask));  // Remove inverted smi-tag.
-      break;
-    default:
-      UNREACHABLE();
-  }
-}
-
-
 LocationSummary* SmiToDoubleInstr::MakeLocationSummary() const {
   const intptr_t kNumInputs = 1;
   const intptr_t kNumTemps = 0;
   LocationSummary* result =
       new LocationSummary(kNumInputs, kNumTemps, LocationSummary::kNoCall);
   result->set_in(0, Location::WritableRegister());
   result->set_out(Location::RequiresFpuRegister());
   return result;
 }
 
@@ skipping 688 matching lines @@
                          PcDescriptors::kOther,
                          locs());
   __ Drop(2);  // Discard type arguments and receiver.
 }
 
 }  // namespace dart
 
 #undef __
 
 #endif  // defined TARGET_ARCH_X64