1 // Copyright 2014 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "src/assembler.h"
6 #include "src/code-stubs.h"
7 #include "src/compiler/linkage.h"
8 #include "src/compiler/linkage-impl.h"
16 const bool kWin64 = true;
18 const bool kWin64 = false;
21 struct X64LinkageHelperTraits {
22 static Register ReturnValueReg() { return rax; }
23 static Register ReturnValue2Reg() { return rdx; }
24 static Register JSCallFunctionReg() { return rdi; }
25 static Register ContextReg() { return rsi; }
26 static Register RuntimeCallFunctionReg() { return rbx; }
27 static Register RuntimeCallArgCountReg() { return rax; }
28 static RegList CCalleeSaveRegisters() {
30 return rbx.bit() | rdi.bit() | rsi.bit() | r12.bit() | r13.bit() |
31 r14.bit() | r15.bit();
33 return rbx.bit() | r12.bit() | r13.bit() | r14.bit() | r15.bit();
36 static Register CRegisterParameter(int i) {
38 static Register register_parameters[] = {rcx, rdx, r8, r9};
39 return register_parameters[i];
41 static Register register_parameters[] = {rdi, rsi, rdx, rcx, r8, r9};
42 return register_parameters[i];
45 static int CRegisterParametersLength() { return kWin64 ? 4 : 6; }
48 typedef LinkageHelper<X64LinkageHelperTraits> LH;
50 CallDescriptor* Linkage::GetJSCallDescriptor(Zone* zone, bool is_osr,
52 CallDescriptor::Flags flags) {
53 return LH::GetJSCallDescriptor(zone, is_osr, parameter_count, flags);
57 CallDescriptor* Linkage::GetRuntimeCallDescriptor(
58 Zone* zone, Runtime::FunctionId function, int parameter_count,
59 Operator::Properties properties) {
60 return LH::GetRuntimeCallDescriptor(zone, function, parameter_count,
65 CallDescriptor* Linkage::GetStubCallDescriptor(
66 Isolate* isolate, Zone* zone, const CallInterfaceDescriptor& descriptor,
67 int stack_parameter_count, CallDescriptor::Flags flags,
68 Operator::Properties properties) {
69 return LH::GetStubCallDescriptor(isolate, zone, descriptor,
70 stack_parameter_count, flags, properties);
74 CallDescriptor* Linkage::GetSimplifiedCDescriptor(Zone* zone,
75 const MachineSignature* sig) {
76 return LH::GetSimplifiedCDescriptor(zone, sig);
79 } // namespace compiler
80 } // namespace internal