1 //===-- Target.cpp ----------------------------------------------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 #include "../Target.h" 10 #include "../Latency.h" 11 #include "AArch64.h" 12 13 namespace exegesis { 14 15 namespace { 16 17 class AArch64LatencyBenchmarkRunner : public LatencyBenchmarkRunner { 18 public: 19 AArch64LatencyBenchmarkRunner(const LLVMState &State) 20 : LatencyBenchmarkRunner(State) {} 21 22 private: 23 const char *getCounterName() const override { 24 // All AArch64 subtargets have CPU_CYCLES as the cycle counter name 25 return "CPU_CYCLES"; 26 } 27 }; 28 29 class ExegesisAArch64Target : public ExegesisTarget { 30 bool matchesArch(llvm::Triple::ArchType Arch) const override { 31 return Arch == llvm::Triple::aarch64 || Arch == llvm::Triple::aarch64_be; 32 } 33 void addTargetSpecificPasses(llvm::PassManagerBase &PM) const override { 34 // Function return is a pseudo-instruction that needs to be expanded 35 PM.add(llvm::createAArch64ExpandPseudoPass()); 36 } 37 std::unique_ptr<BenchmarkRunner> 38 createLatencyBenchmarkRunner(const LLVMState &State) const override { 39 return llvm::make_unique<AArch64LatencyBenchmarkRunner>(State); 40 } 41 }; 42 43 } // namespace 44 45 static ExegesisTarget *getTheExegesisAArch64Target() { 46 static ExegesisAArch64Target Target; 47 return &Target; 48 } 49 50 void InitializeAArch64ExegesisTarget() { 51 ExegesisTarget::registerTarget(getTheExegesisAArch64Target()); 52 } 53 54 } // namespace exegesis 55
