Fix Win64 build of Dart VM.

runtime/vm/flow_graph_compiler_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/flow_graph_compiler.h"
 
 #include "vm/ast_printer.h"
@@ skipping 1430 matching lines @@
     __ popq(left);
   } else {
     __ cmpl(left, right);
   }
 }
 
 
 // This function must be in sync with FlowGraphCompiler::RecordSafepoint and
 // FlowGraphCompiler::SlowPathEnvironmentFor.
 void FlowGraphCompiler::SaveLiveRegisters(LocationSummary* locs) {
-  // TODO(vegorov): consider saving only caller save (volatile) registers.
-  const intptr_t xmm_regs_count = locs->live_registers()->FpuRegisterCount();
-  if (xmm_regs_count > 0) {
-    __ AddImmediate(RSP, Immediate(-xmm_regs_count * kFpuRegisterSize), PP);
-    // Store XMM registers with the lowest register number at the lowest
-    // address.
-    intptr_t offset = 0;
-    for (intptr_t reg_idx = 0; reg_idx < kNumberOfXmmRegisters; ++reg_idx) {
-      XmmRegister xmm_reg = static_cast<XmmRegister>(reg_idx);
-      if (locs->live_registers()->ContainsFpuRegister(xmm_reg)) {
-        __ movups(Address(RSP, offset), xmm_reg);
-        offset += kFpuRegisterSize;
-      }
-    }
-    ASSERT(offset == (xmm_regs_count * kFpuRegisterSize));
-  }
-
-  // Store general purpose registers with the highest register number at the
-  // lowest address.
-  for (intptr_t reg_idx = 0; reg_idx < kNumberOfCpuRegisters; ++reg_idx) {
-    Register reg = static_cast<Register>(reg_idx);
-    if (locs->live_registers()->ContainsRegister(reg)) {
-      __ pushq(reg);
-    }
-  }
+  // TODO(vegorov): avoid saving non-volatile registers.
+  __ PushRegisters(locs->live_registers()->cpu_registers(),
+                   locs->live_registers()->fpu_registers());
 }
 
 
 void FlowGraphCompiler::RestoreLiveRegisters(LocationSummary* locs) {
-  // General purpose registers have the highest register number at the
-  // lowest address.
-  for (intptr_t reg_idx = kNumberOfCpuRegisters - 1; reg_idx >= 0; --reg_idx) {
-    Register reg = static_cast<Register>(reg_idx);
-    if (locs->live_registers()->ContainsRegister(reg)) {
-      __ popq(reg);
-    }
-  }
-
-  const intptr_t xmm_regs_count = locs->live_registers()->FpuRegisterCount();
-  if (xmm_regs_count > 0) {
-    // XMM registers have the lowest register number at the lowest address.
-    intptr_t offset = 0;
-    for (intptr_t reg_idx = 0; reg_idx < kNumberOfXmmRegisters; ++reg_idx) {
-      XmmRegister xmm_reg = static_cast<XmmRegister>(reg_idx);
-      if (locs->live_registers()->ContainsFpuRegister(xmm_reg)) {
-        __ movups(xmm_reg, Address(RSP, offset));
-        offset += kFpuRegisterSize;
-      }
-    }
-    ASSERT(offset == (xmm_regs_count * kFpuRegisterSize));
-    __ AddImmediate(RSP, Immediate(offset), PP);
-  }
+  __ PopRegisters(locs->live_registers()->cpu_registers(),
+                  locs->live_registers()->fpu_registers());
 }
 
 
 void FlowGraphCompiler::EmitTestAndCall(const ICData& ic_data,
                                         Register class_id_reg,
                                         intptr_t argument_count,
                                         const Array& argument_names,
                                         Label* deopt,
                                         intptr_t deopt_id,
                                         intptr_t token_index,
@@ skipping 248 matching lines @@
   __ movups(reg, Address(RSP, 0));
   __ AddImmediate(RSP, Immediate(kFpuRegisterSize), PP);
 }
 
 
 #undef __
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_X64