| // Copyright 2014 the V8 project authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "src/v8.h" |
| |
| #include "src/assembler.h" |
| #include "src/code-stubs.h" |
| #include "src/compiler/linkage.h" |
| #include "src/compiler/linkage-impl.h" |
| #include "src/zone.h" |
| |
| namespace v8 { |
| namespace internal { |
| namespace compiler { |
| |
| #ifdef _WIN64 |
| const bool kWin64 = true; |
| #else |
| const bool kWin64 = false; |
| #endif |
| |
| struct X64LinkageHelperTraits { |
| static Register ReturnValueReg() { return rax; } |
| static Register ReturnValue2Reg() { return rdx; } |
| static Register JSCallFunctionReg() { return rdi; } |
| static Register ContextReg() { return rsi; } |
| static Register RuntimeCallFunctionReg() { return rbx; } |
| static Register RuntimeCallArgCountReg() { return rax; } |
| static RegList CCalleeSaveRegisters() { |
| if (kWin64) { |
| return rbx.bit() | rdi.bit() | rsi.bit() | r12.bit() | r13.bit() | |
| r14.bit() | r15.bit(); |
| } else { |
| return rbx.bit() | r12.bit() | r13.bit() | r14.bit() | r15.bit(); |
| } |
| } |
| static Register CRegisterParameter(int i) { |
| if (kWin64) { |
| static Register register_parameters[] = {rcx, rdx, r8, r9}; |
| return register_parameters[i]; |
| } else { |
| static Register register_parameters[] = {rdi, rsi, rdx, rcx, r8, r9}; |
| return register_parameters[i]; |
| } |
| } |
| static int CRegisterParametersLength() { return kWin64 ? 4 : 6; } |
| }; |
| |
| typedef LinkageHelper<X64LinkageHelperTraits> LH; |
| |
| CallDescriptor* Linkage::GetJSCallDescriptor(int parameter_count, Zone* zone, |
| CallDescriptor::Flags flags) { |
| return LH::GetJSCallDescriptor(zone, parameter_count, flags); |
| } |
| |
| |
| CallDescriptor* Linkage::GetRuntimeCallDescriptor( |
| Runtime::FunctionId function, int parameter_count, |
| Operator::Properties properties, Zone* zone) { |
| return LH::GetRuntimeCallDescriptor(zone, function, parameter_count, |
| properties); |
| } |
| |
| |
| CallDescriptor* Linkage::GetStubCallDescriptor( |
| const CallInterfaceDescriptor& descriptor, int stack_parameter_count, |
| CallDescriptor::Flags flags, Operator::Properties properties, Zone* zone) { |
| return LH::GetStubCallDescriptor(zone, descriptor, stack_parameter_count, |
| flags, properties); |
| } |
| |
| |
| CallDescriptor* Linkage::GetSimplifiedCDescriptor(Zone* zone, |
| MachineSignature* sig) { |
| return LH::GetSimplifiedCDescriptor(zone, sig); |
| } |
| |
| } // namespace compiler |
| } // namespace internal |
| } // namespace v8 |