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//===-- Target.cpp ----------------------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "../Target.h"
#include "../Latency.h"
#include "AArch64.h"
namespace exegesis {
namespace {
class AArch64LatencyBenchmarkRunner : public LatencyBenchmarkRunner {
public:
AArch64LatencyBenchmarkRunner(const LLVMState &State)
: LatencyBenchmarkRunner(State) {}
private:
const char *getCounterName() const override {
// All AArch64 subtargets have CPU_CYCLES as the cycle counter name
return "CPU_CYCLES";
}
};
class ExegesisAArch64Target : public ExegesisTarget {
std::vector<llvm::MCInst> setRegTo(const llvm::MCSubtargetInfo &STI,
const llvm::APInt &Value,
unsigned Reg) const override {
llvm_unreachable("Not yet implemented");
}
unsigned getScratchMemoryRegister(const llvm::Triple &) const override {
llvm_unreachable("Not yet implemented");
}
void fillMemoryOperands(InstructionBuilder &IB, unsigned Reg,
unsigned Offset) const override {
llvm_unreachable("Not yet implemented");
}
unsigned getMaxMemoryAccessSize() const override {
llvm_unreachable("Not yet implemented");
}
bool matchesArch(llvm::Triple::ArchType Arch) const override {
return Arch == llvm::Triple::aarch64 || Arch == llvm::Triple::aarch64_be;
}
void addTargetSpecificPasses(llvm::PassManagerBase &PM) const override {
// Function return is a pseudo-instruction that needs to be expanded
PM.add(llvm::createAArch64ExpandPseudoPass());
}
std::unique_ptr<BenchmarkRunner>
createLatencyBenchmarkRunner(const LLVMState &State) const override {
return llvm::make_unique<AArch64LatencyBenchmarkRunner>(State);
}
};
} // namespace
static ExegesisTarget *getTheExegesisAArch64Target() {
static ExegesisAArch64Target Target;
return &Target;
}
void InitializeAArch64ExegesisTarget() {
ExegesisTarget::registerTarget(getTheExegesisAArch64Target());
}
} // namespace exegesis
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