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 LinkageHelperTraits {
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; }
51 CallDescriptor* Linkage::GetJSCallDescriptor(int parameter_count, Zone* zone) {
52 return LinkageHelper::GetJSCallDescriptor<LinkageHelperTraits>(
53 zone, parameter_count);
57 CallDescriptor* Linkage::GetRuntimeCallDescriptor(
58 Runtime::FunctionId function, int parameter_count,
59 Operator::Property properties,
60 CallDescriptor::DeoptimizationSupport can_deoptimize, Zone* zone) {
61 return LinkageHelper::GetRuntimeCallDescriptor<LinkageHelperTraits>(
62 zone, function, parameter_count, properties, can_deoptimize);
66 CallDescriptor* Linkage::GetStubCallDescriptor(
67 CodeStubInterfaceDescriptor* descriptor, int stack_parameter_count,
68 CallDescriptor::DeoptimizationSupport can_deoptimize, Zone* zone) {
69 return LinkageHelper::GetStubCallDescriptor<LinkageHelperTraits>(
70 zone, descriptor, stack_parameter_count, can_deoptimize);
74 CallDescriptor* Linkage::GetSimplifiedCDescriptor(
75 Zone* zone, int num_params, MachineType return_type,
76 const MachineType* param_types) {
77 return LinkageHelper::GetSimplifiedCDescriptor<LinkageHelperTraits>(
78 zone, num_params, return_type, param_types);
83 } // namespace v8::internal::compiler