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.
7 #include "src/assembler.h"
8 #include "src/code-stubs.h"
9 #include "src/compiler/linkage.h"
10 #include "src/compiler/linkage-impl.h"
18 const bool kWin64 = true;
20 const bool kWin64 = false;
23 struct X64LinkageHelperTraits {
24 static Register ReturnValueReg() { return rax; }
25 static Register ReturnValue2Reg() { return rdx; }
26 static Register JSCallFunctionReg() { return rdi; }
27 static Register ContextReg() { return rsi; }
28 static Register RuntimeCallFunctionReg() { return rbx; }
29 static Register RuntimeCallArgCountReg() { return rax; }
30 static RegList CCalleeSaveRegisters() {
32 return rbx.bit() | rdi.bit() | rsi.bit() | r12.bit() | r13.bit() |
33 r14.bit() | r15.bit();
35 return rbx.bit() | r12.bit() | r13.bit() | r14.bit() | r15.bit();
38 static Register CRegisterParameter(int i) {
40 static Register register_parameters[] = {rcx, rdx, r8, r9};
41 return register_parameters[i];
43 static Register register_parameters[] = {rdi, rsi, rdx, rcx, r8, r9};
44 return register_parameters[i];
47 static int CRegisterParametersLength() { return kWin64 ? 4 : 6; }
50 typedef LinkageHelper<X64LinkageHelperTraits> LH;
52 CallDescriptor* Linkage::GetJSCallDescriptor(int parameter_count, Zone* zone) {
53 return LH::GetJSCallDescriptor(zone, parameter_count);
57 CallDescriptor* Linkage::GetRuntimeCallDescriptor(
58 Runtime::FunctionId function, int parameter_count,
59 Operator::Properties properties, Zone* zone) {
60 return LH::GetRuntimeCallDescriptor(zone, function, parameter_count,
65 CallDescriptor* Linkage::GetStubCallDescriptor(
66 CallInterfaceDescriptor descriptor, int stack_parameter_count,
67 CallDescriptor::Flags flags, Zone* zone) {
68 return LH::GetStubCallDescriptor(zone, descriptor, stack_parameter_count,
73 CallDescriptor* Linkage::GetSimplifiedCDescriptor(Zone* zone,
74 MachineSignature* sig) {
75 return LH::GetSimplifiedCDescriptor(zone, sig);
78 } // namespace compiler
79 } // namespace internal