112 lines
3.1 KiB
C++
112 lines
3.1 KiB
C++
//===-- 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;
|
|
}
|
|
if (Target->Next != nullptr)
|
|
return; // Already registered.
|
|
Target->Next = FirstTarget;
|
|
FirstTarget = Target;
|
|
}
|
|
|
|
std::unique_ptr<SnippetGenerator>
|
|
ExegesisTarget::createSnippetGenerator(InstructionBenchmark::ModeE Mode,
|
|
const LLVMState &State) const {
|
|
switch (Mode) {
|
|
case InstructionBenchmark::Unknown:
|
|
return nullptr;
|
|
case InstructionBenchmark::Latency:
|
|
return createLatencySnippetGenerator(State);
|
|
case InstructionBenchmark::Uops:
|
|
return createUopsSnippetGenerator(State);
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
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<SnippetGenerator>
|
|
ExegesisTarget::createLatencySnippetGenerator(const LLVMState &State) const {
|
|
return llvm::make_unique<LatencySnippetGenerator>(State);
|
|
}
|
|
|
|
std::unique_ptr<SnippetGenerator>
|
|
ExegesisTarget::createUopsSnippetGenerator(const LLVMState &State) const {
|
|
return llvm::make_unique<UopsSnippetGenerator>(State);
|
|
}
|
|
|
|
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:
|
|
std::vector<llvm::MCInst> setRegTo(const llvm::MCSubtargetInfo &STI,
|
|
unsigned Reg,
|
|
const llvm::APInt &Value) const override {
|
|
llvm_unreachable("Not yet implemented");
|
|
}
|
|
|
|
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
|