namespace internal {
namespace compiler {
+#define FOREACH_CTYPE_MACHINE_TYPE_MAPPING(V) \
+ V(void, kMachNone) \
+ V(bool, kMachBool) \
+ V(int8_t, kMachInt8) \
+ V(uint8_t, kMachUint8) \
+ V(int16_t, kMachInt16) \
+ V(uint16_t, kMachUint16) \
+ V(int32_t, kMachInt32) \
+ V(uint32_t, kMachUint32) \
+ V(int64_t, kMachInt64) \
+ V(uint64_t, kMachUint64) \
+ V(float, kMachFloat32) \
+ V(double, kMachFloat64) \
+ V(void*, kMachPtr) \
+ V(int*, kMachPtr)
+
template <typename T>
inline MachineType MachineTypeForC() {
- CHECK(false); // Instantiated with invalid type.
- return kMachNone;
-}
-
-template <>
-inline MachineType MachineTypeForC<void>() {
- return kMachNone;
-}
-
-template <>
-inline MachineType MachineTypeForC<int8_t>() {
- return kMachInt8;
-}
-
-template <>
-inline MachineType MachineTypeForC<uint8_t>() {
- return kMachUint8;
-}
-
-template <>
-inline MachineType MachineTypeForC<int16_t>() {
- return kMachInt16;
-}
-
-template <>
-inline MachineType MachineTypeForC<uint16_t>() {
- return kMachUint16;
-}
-
-template <>
-inline MachineType MachineTypeForC<int32_t>() {
- return kMachInt32;
-}
-
-template <>
-inline MachineType MachineTypeForC<uint32_t>() {
- return kMachUint32;
+ while (false) {
+ // All other types T must be assignable to Object*
+ *(static_cast<Object* volatile*>(0)) = static_cast<T>(0);
+ }
+ return kMachAnyTagged;
}
-template <>
-inline MachineType MachineTypeForC<int64_t>() {
- return kMachInt64;
-}
+#define DECLARE_TEMPLATE_SPECIALIZATION(ctype, mtype) \
+ template <> \
+ inline MachineType MachineTypeForC<ctype>() { \
+ return mtype; \
+ }
+FOREACH_CTYPE_MACHINE_TYPE_MAPPING(DECLARE_TEMPLATE_SPECIALIZATION)
+#undef DECLARE_TEMPLATE_SPECIALIZATION
-template <>
-inline MachineType MachineTypeForC<uint64_t>() {
- return kMachUint64;
-}
+// Helper for building machine signatures from C types.
+class CSignature : public MachineSignature {
+ protected:
+ CSignature(size_t return_count, size_t parameter_count, MachineType* reps)
+ : MachineSignature(return_count, parameter_count, reps) {}
-template <>
-inline MachineType MachineTypeForC<double>() {
- return kMachFloat64;
-}
+ public:
+ template <typename P1 = void, typename P2 = void, typename P3 = void,
+ typename P4 = void, typename P5 = void>
+ void Verify() {
+ // Verifies the C signature against the machine types. Maximum {5} params.
+ CHECK_LT(parameter_count(), 6);
+ const int kMax = 5;
+ MachineType params[] = {MachineTypeForC<P1>(), MachineTypeForC<P2>(),
+ MachineTypeForC<P3>(), MachineTypeForC<P4>(),
+ MachineTypeForC<P5>()};
+ for (int p = kMax - 1; p >= 0; p--) {
+ if (p < parameter_count()) {
+ CHECK_EQ(GetParam(p), params[p]);
+ } else {
+ CHECK_EQ(kMachNone, params[p]);
+ }
+ }
+ }
+};
-template <>
-inline MachineType MachineTypeForC<Object*>() {
- return kMachAnyTagged;
-}
template <typename Ret, uint16_t kParamCount>
-class CSignatureOf : public MachineSignature {
+class CSignatureOf : public CSignature {
protected:
MachineType storage_[1 + kParamCount];
CSignatureOf()
- : MachineSignature(MachineTypeForC<Ret>() != kMachNone ? 1 : 0,
- kParamCount,
- reinterpret_cast<MachineType*>(&storage_)) {
+ : CSignature(MachineTypeForC<Ret>() != kMachNone ? 1 : 0, kParamCount,
+ reinterpret_cast<MachineType*>(&storage_)) {
if (return_count_ == 1) storage_[0] = MachineTypeForC<Ret>();
}
void Set(int index, MachineType type) {
}
};
-static const CSignature2<int32_t, int32_t, int32_t> int32_int32_to_int32;
-static const CSignature2<uint32_t, uint32_t, uint32_t> uint32_uint32_to_uint32;
-static const CSignature2<double, double, double> float64_float64_to_float64;
+typedef CSignature2<int32_t, int32_t, int32_t> CSignature_i_ii;
+typedef CSignature2<uint32_t, uint32_t, uint32_t> CSignature_u_uu;
+typedef CSignature2<float, float, float> CSignature_f_ff;
+typedef CSignature2<double, double, double> CSignature_d_dd;
+typedef CSignature2<Object*, Object*, Object*> CSignature_o_oo;
}
}
} // namespace v8::internal::compiler
#include "src/simulator.h"
+#include "test/cctest/compiler/c-signature.h"
+
#if V8_TARGET_ARCH_IA32
#if __GNUC__
#define V8_CDECL __attribute__((cdecl))
namespace internal {
namespace compiler {
-// TODO(titzer): use c-signature.h instead of ReturnValueTraits
template <typename R>
-struct ReturnValueTraits {
- static R Cast(uintptr_t r) { return reinterpret_cast<R>(r); }
- static MachineType Representation() {
- // TODO(dcarney): detect when R is of a subclass of Object* instead of this
- // type check.
- while (false) {
- *(static_cast<Object* volatile*>(0)) = static_cast<R>(0);
- }
- return kMachAnyTagged;
- }
-};
-
-template <>
-struct ReturnValueTraits<int32_t*> {
- static int32_t* Cast(uintptr_t r) { return reinterpret_cast<int32_t*>(r); }
- static MachineType Representation() { return kMachPtr; }
-};
+inline R CastReturnValue(uintptr_t r) {
+ return reinterpret_cast<R>(r);
+}
template <>
-struct ReturnValueTraits<void> {
- static void Cast(uintptr_t r) {}
- static MachineType Representation() { return kMachPtr; }
-};
+inline void CastReturnValue(uintptr_t r) {}
template <>
-struct ReturnValueTraits<bool> {
- static bool Cast(uintptr_t r) { return static_cast<bool>(r); }
- static MachineType Representation() { return kRepBit; }
-};
+inline bool CastReturnValue(uintptr_t r) {
+ return static_cast<bool>(r);
+}
template <>
-struct ReturnValueTraits<int32_t> {
- static int32_t Cast(uintptr_t r) { return static_cast<int32_t>(r); }
- static MachineType Representation() { return kMachInt32; }
-};
+inline int32_t CastReturnValue(uintptr_t r) {
+ return static_cast<int32_t>(r);
+}
template <>
-struct ReturnValueTraits<uint32_t> {
- static uint32_t Cast(uintptr_t r) { return static_cast<uint32_t>(r); }
- static MachineType Representation() { return kMachUint32; }
-};
+inline uint32_t CastReturnValue(uintptr_t r) {
+ return static_cast<uint32_t>(r);
+}
template <>
-struct ReturnValueTraits<int64_t> {
- static int64_t Cast(uintptr_t r) { return static_cast<int64_t>(r); }
- static MachineType Representation() { return kMachInt64; }
-};
+inline int64_t CastReturnValue(uintptr_t r) {
+ return static_cast<int64_t>(r);
+}
template <>
-struct ReturnValueTraits<uint64_t> {
- static uint64_t Cast(uintptr_t r) { return static_cast<uint64_t>(r); }
- static MachineType Representation() { return kMachUint64; }
-};
+inline uint64_t CastReturnValue(uintptr_t r) {
+ return static_cast<uint64_t>(r);
+}
template <>
-struct ReturnValueTraits<int16_t> {
- static int16_t Cast(uintptr_t r) { return static_cast<int16_t>(r); }
- static MachineType Representation() { return kMachInt16; }
-};
+inline int16_t CastReturnValue(uintptr_t r) {
+ return static_cast<int16_t>(r);
+}
template <>
-struct ReturnValueTraits<uint16_t> {
- static uint16_t Cast(uintptr_t r) { return static_cast<uint16_t>(r); }
- static MachineType Representation() { return kMachUint16; }
-};
+inline uint16_t CastReturnValue(uintptr_t r) {
+ return static_cast<uint16_t>(r);
+}
template <>
-struct ReturnValueTraits<int8_t> {
- static int8_t Cast(uintptr_t r) { return static_cast<int8_t>(r); }
- static MachineType Representation() { return kMachInt8; }
-};
+inline int8_t CastReturnValue(uintptr_t r) {
+ return static_cast<int8_t>(r);
+}
template <>
-struct ReturnValueTraits<uint8_t> {
- static uint8_t Cast(uintptr_t r) { return static_cast<uint8_t>(r); }
- static MachineType Representation() { return kMachUint8; }
-};
+inline uint8_t CastReturnValue(uintptr_t r) {
+ return static_cast<uint8_t>(r);
+}
template <>
-struct ReturnValueTraits<double> {
- static double Cast(uintptr_t r) {
- UNREACHABLE();
- return 0.0;
- }
- static MachineType Representation() { return kMachFloat64; }
-};
-
+inline double CastReturnValue(uintptr_t r) {
+ UNREACHABLE();
+ return 0.0;
+}
template <typename R>
struct ParameterTraits {
template <typename F>
R DoCall(F* f) {
Simulator::CallArgument args[] = {Simulator::CallArgument::End()};
- return ReturnValueTraits<R>::Cast(CallSimulator(FUNCTION_ADDR(f), args));
+ return CastReturnValue<R>(CallSimulator(FUNCTION_ADDR(f), args));
}
template <typename F, typename P1>
R DoCall(F* f, P1 p1) {
Simulator::CallArgument args[] = {Simulator::CallArgument(p1),
Simulator::CallArgument::End()};
- return ReturnValueTraits<R>::Cast(CallSimulator(FUNCTION_ADDR(f), args));
+ return CastReturnValue<R>(CallSimulator(FUNCTION_ADDR(f), args));
}
template <typename F, typename P1, typename P2>
R DoCall(F* f, P1 p1, P2 p2) {
Simulator::CallArgument args[] = {Simulator::CallArgument(p1),
Simulator::CallArgument(p2),
Simulator::CallArgument::End()};
- return ReturnValueTraits<R>::Cast(CallSimulator(FUNCTION_ADDR(f), args));
+ return CastReturnValue<R>(CallSimulator(FUNCTION_ADDR(f), args));
}
template <typename F, typename P1, typename P2, typename P3>
R DoCall(F* f, P1 p1, P2 p2, P3 p3) {
Simulator::CallArgument args[] = {
Simulator::CallArgument(p1), Simulator::CallArgument(p2),
Simulator::CallArgument(p3), Simulator::CallArgument::End()};
- return ReturnValueTraits<R>::Cast(CallSimulator(FUNCTION_ADDR(f), args));
+ return CastReturnValue<R>(CallSimulator(FUNCTION_ADDR(f), args));
}
template <typename F, typename P1, typename P2, typename P3, typename P4>
R DoCall(F* f, P1 p1, P2 p2, P3 p3, P4 p4) {
Simulator::CallArgument(p1), Simulator::CallArgument(p2),
Simulator::CallArgument(p3), Simulator::CallArgument(p4),
Simulator::CallArgument::End()};
- return ReturnValueTraits<R>::Cast(CallSimulator(FUNCTION_ADDR(f), args));
+ return CastReturnValue<R>(CallSimulator(FUNCTION_ADDR(f), args));
}
#elif USE_SIMULATOR && (V8_TARGET_ARCH_MIPS64 || V8_TARGET_ARCH_PPC64)
uintptr_t CallSimulator(byte* f, int64_t p1 = 0, int64_t p2 = 0,
template <typename F>
R DoCall(F* f) {
- return ReturnValueTraits<R>::Cast(CallSimulator(FUNCTION_ADDR(f)));
+ return CastReturnValue<R>(CallSimulator(FUNCTION_ADDR(f)));
}
template <typename F, typename P1>
R DoCall(F* f, P1 p1) {
- return ReturnValueTraits<R>::Cast(
+ return CastReturnValue<R>(
CallSimulator(FUNCTION_ADDR(f), ParameterTraits<P1>::Cast(p1)));
}
template <typename F, typename P1, typename P2>
R DoCall(F* f, P1 p1, P2 p2) {
- return ReturnValueTraits<R>::Cast(
- CallSimulator(FUNCTION_ADDR(f), ParameterTraits<P1>::Cast(p1),
- ParameterTraits<P2>::Cast(p2)));
+ return CastReturnValue<R>(CallSimulator(FUNCTION_ADDR(f),
+ ParameterTraits<P1>::Cast(p1),
+ ParameterTraits<P2>::Cast(p2)));
}
template <typename F, typename P1, typename P2, typename P3>
R DoCall(F* f, P1 p1, P2 p2, P3 p3) {
- return ReturnValueTraits<R>::Cast(CallSimulator(
+ return CastReturnValue<R>(CallSimulator(
FUNCTION_ADDR(f), ParameterTraits<P1>::Cast(p1),
ParameterTraits<P2>::Cast(p2), ParameterTraits<P3>::Cast(p3)));
}
template <typename F, typename P1, typename P2, typename P3, typename P4>
R DoCall(F* f, P1 p1, P2 p2, P3 p3, P4 p4) {
- return ReturnValueTraits<R>::Cast(CallSimulator(
+ return CastReturnValue<R>(CallSimulator(
FUNCTION_ADDR(f), ParameterTraits<P1>::Cast(p1),
ParameterTraits<P2>::Cast(p2), ParameterTraits<P3>::Cast(p3),
ParameterTraits<P4>::Cast(p4)));
}
template <typename F>
R DoCall(F* f) {
- return ReturnValueTraits<R>::Cast(CallSimulator(FUNCTION_ADDR(f)));
+ return CastReturnValue<R>(CallSimulator(FUNCTION_ADDR(f)));
}
template <typename F, typename P1>
R DoCall(F* f, P1 p1) {
- return ReturnValueTraits<R>::Cast(
+ return CastReturnValue<R>(
CallSimulator(FUNCTION_ADDR(f), ParameterTraits<P1>::Cast(p1)));
}
template <typename F, typename P1, typename P2>
R DoCall(F* f, P1 p1, P2 p2) {
- return ReturnValueTraits<R>::Cast(
- CallSimulator(FUNCTION_ADDR(f), ParameterTraits<P1>::Cast(p1),
- ParameterTraits<P2>::Cast(p2)));
+ return CastReturnValue<R>(CallSimulator(FUNCTION_ADDR(f),
+ ParameterTraits<P1>::Cast(p1),
+ ParameterTraits<P2>::Cast(p2)));
}
template <typename F, typename P1, typename P2, typename P3>
R DoCall(F* f, P1 p1, P2 p2, P3 p3) {
- return ReturnValueTraits<R>::Cast(CallSimulator(
+ return CastReturnValue<R>(CallSimulator(
FUNCTION_ADDR(f), ParameterTraits<P1>::Cast(p1),
ParameterTraits<P2>::Cast(p2), ParameterTraits<P3>::Cast(p3)));
}
template <typename F, typename P1, typename P2, typename P3, typename P4>
R DoCall(F* f, P1 p1, P2 p2, P3 p3, P4 p4) {
- return ReturnValueTraits<R>::Cast(CallSimulator(
+ return CastReturnValue<R>(CallSimulator(
FUNCTION_ADDR(f), ParameterTraits<P1>::Cast(p1),
ParameterTraits<P2>::Cast(p2), ParameterTraits<P3>::Cast(p3),
ParameterTraits<P4>::Cast(p4)));
template <typename P1>
void VerifyParameters1() {
- MachineType parameters[] = {ReturnValueTraits<P1>::Representation()};
+ MachineType parameters[] = {MachineTypeForC<P1>()};
VerifyParameters(arraysize(parameters), parameters);
}
template <typename P1, typename P2>
void VerifyParameters2() {
- MachineType parameters[] = {ReturnValueTraits<P1>::Representation(),
- ReturnValueTraits<P2>::Representation()};
+ MachineType parameters[] = {MachineTypeForC<P1>(), MachineTypeForC<P2>()};
VerifyParameters(arraysize(parameters), parameters);
}
template <typename P1, typename P2, typename P3>
void VerifyParameters3() {
- MachineType parameters[] = {ReturnValueTraits<P1>::Representation(),
- ReturnValueTraits<P2>::Representation(),
- ReturnValueTraits<P3>::Representation()};
+ MachineType parameters[] = {MachineTypeForC<P1>(), MachineTypeForC<P2>(),
+ MachineTypeForC<P3>()};
VerifyParameters(arraysize(parameters), parameters);
}
template <typename P1, typename P2, typename P3, typename P4>
void VerifyParameters4() {
- MachineType parameters[] = {ReturnValueTraits<P1>::Representation(),
- ReturnValueTraits<P2>::Representation(),
- ReturnValueTraits<P3>::Representation(),
- ReturnValueTraits<P4>::Representation()};
+ MachineType parameters[] = {MachineTypeForC<P1>(), MachineTypeForC<P2>(),
+ MachineTypeForC<P3>(), MachineTypeForC<P4>()};
VerifyParameters(arraysize(parameters), parameters);
}
#endif