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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 "Uops.h"
namespace exegesis {
ExegesisTarget::~ExegesisTarget() {} // anchor.
static ExegesisTarget *FirstTarget = nullptr;
const ExegesisTarget *ExegesisTarget::lookup(llvm::Triple TT) {
for (const ExegesisTarget *T = FirstTarget; T != nullptr; T = T->Next) {
if (T->matchesArch(TT.getArch()))
return T;
}
return nullptr;
}
void ExegesisTarget::registerTarget(ExegesisTarget *Target) {
if (FirstTarget == nullptr) {
FirstTarget = Target;
return;
}
assert(Target->Next == nullptr && "target has already been registered");
if (Target->Next != nullptr)
return;
Target->Next = FirstTarget;
FirstTarget = Target;
}
std::unique_ptr<BenchmarkRunner>
ExegesisTarget::createBenchmarkRunner(InstructionBenchmark::ModeE Mode,
const LLVMState &State) const {
switch (Mode) {
case InstructionBenchmark::Unknown:
return nullptr;
case InstructionBenchmark::Latency:
return createLatencyBenchmarkRunner(State);
case InstructionBenchmark::Uops:
return createUopsBenchmarkRunner(State);
}
return nullptr;
}
std::unique_ptr<BenchmarkRunner>
ExegesisTarget::createLatencyBenchmarkRunner(const LLVMState &State) const {
return llvm::make_unique<LatencyBenchmarkRunner>(State);
}
std::unique_ptr<BenchmarkRunner>
ExegesisTarget::createUopsBenchmarkRunner(const LLVMState &State) const {
return llvm::make_unique<UopsBenchmarkRunner>(State);
}
namespace {
// Default implementation.
class ExegesisDefaultTarget : public ExegesisTarget {
private:
bool matchesArch(llvm::Triple::ArchType Arch) const override {
llvm_unreachable("never called");
return false;
}
};
} // namespace
const ExegesisTarget &ExegesisTarget::getDefault() {
static ExegesisDefaultTarget Target;
return Target;
}
} // namespace exegesis
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