mirror of
https://github.com/RPCSX/llvm.git
synced 2025-02-12 15:51:40 +00:00
117458356f
And use it in MachineOptimizationRemarkEmitter. A test will follow on top of Justin's changes to enable MachineORE in AsmPrinter. The approach is similar to the IR-level pass. It's a bit simpler because BPI is immutable at the Machine level so we don't need to make that lazy. Because of this, a new function mapping is introduced (BPIPassTrait::getBPI). This function extracts BPI from the pass. In case of the lazy pass, this is when the calculation of the BFI occurs. For Machine-level, this is the identity function. Differential Revision: https://reviews.llvm.org/D29836 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@295072 91177308-0d34-0410-b5e6-96231b3b80d8
91 lines
3.1 KiB
C++
91 lines
3.1 KiB
C++
///===- MachineOptimizationRemarkEmitter.cpp - Opt Diagnostic -*- C++ -*---===//
|
|
///
|
|
/// The LLVM Compiler Infrastructure
|
|
///
|
|
/// This file is distributed under the University of Illinois Open Source
|
|
/// License. See LICENSE.TXT for details.
|
|
///
|
|
///===---------------------------------------------------------------------===//
|
|
/// \file
|
|
/// Optimization diagnostic interfaces for machine passes. It's packaged as an
|
|
/// analysis pass so that by using this service passes become dependent on MBFI
|
|
/// as well. MBFI is used to compute the "hotness" of the diagnostic message.
|
|
///
|
|
///===---------------------------------------------------------------------===//
|
|
|
|
#include "llvm/CodeGen/MachineOptimizationRemarkEmitter.h"
|
|
#include "llvm/CodeGen/LazyMachineBlockFrequencyInfo.h"
|
|
#include "llvm/IR/DebugInfo.h"
|
|
#include "llvm/IR/DiagnosticInfo.h"
|
|
#include "llvm/IR/LLVMContext.h"
|
|
|
|
using namespace llvm;
|
|
|
|
Optional<uint64_t>
|
|
MachineOptimizationRemarkEmitter::computeHotness(const MachineBasicBlock &MBB) {
|
|
if (!MBFI)
|
|
return None;
|
|
|
|
return MBFI->getBlockProfileCount(&MBB);
|
|
}
|
|
|
|
void MachineOptimizationRemarkEmitter::computeHotness(
|
|
DiagnosticInfoMIROptimization &Remark) {
|
|
const MachineBasicBlock *MBB = Remark.getBlock();
|
|
if (MBB)
|
|
Remark.setHotness(computeHotness(*MBB));
|
|
}
|
|
|
|
void MachineOptimizationRemarkEmitter::emit(
|
|
DiagnosticInfoOptimizationBase &OptDiagCommon) {
|
|
auto &OptDiag = cast<DiagnosticInfoMIROptimization>(OptDiagCommon);
|
|
computeHotness(OptDiag);
|
|
|
|
LLVMContext &Ctx = MF.getFunction()->getContext();
|
|
yaml::Output *Out = Ctx.getDiagnosticsOutputFile();
|
|
if (Out) {
|
|
auto *P = &const_cast<DiagnosticInfoOptimizationBase &>(OptDiagCommon);
|
|
*Out << P;
|
|
}
|
|
// FIXME: now that IsVerbose is part of DI, filtering for this will be moved
|
|
// from here to clang.
|
|
if (!OptDiag.isVerbose() || shouldEmitVerbose())
|
|
Ctx.diagnose(OptDiag);
|
|
}
|
|
|
|
MachineOptimizationRemarkEmitterPass::MachineOptimizationRemarkEmitterPass()
|
|
: MachineFunctionPass(ID) {
|
|
initializeMachineOptimizationRemarkEmitterPassPass(
|
|
*PassRegistry::getPassRegistry());
|
|
}
|
|
|
|
bool MachineOptimizationRemarkEmitterPass::runOnMachineFunction(
|
|
MachineFunction &MF) {
|
|
MachineBlockFrequencyInfo *MBFI;
|
|
|
|
if (MF.getFunction()->getContext().getDiagnosticHotnessRequested())
|
|
MBFI = &getAnalysis<LazyMachineBlockFrequencyInfoPass>().getBFI();
|
|
else
|
|
MBFI = nullptr;
|
|
|
|
ORE = llvm::make_unique<MachineOptimizationRemarkEmitter>(MF, MBFI);
|
|
return false;
|
|
}
|
|
|
|
void MachineOptimizationRemarkEmitterPass::getAnalysisUsage(
|
|
AnalysisUsage &AU) const {
|
|
LazyMachineBlockFrequencyInfoPass::getLazyMachineBFIAnalysisUsage(AU);
|
|
AU.setPreservesAll();
|
|
MachineFunctionPass::getAnalysisUsage(AU);
|
|
}
|
|
|
|
char MachineOptimizationRemarkEmitterPass::ID = 0;
|
|
static const char ore_name[] = "Machine Optimization Remark Emitter";
|
|
#define ORE_NAME "machine-opt-remark-emitter"
|
|
|
|
INITIALIZE_PASS_BEGIN(MachineOptimizationRemarkEmitterPass, ORE_NAME, ore_name,
|
|
false, true)
|
|
INITIALIZE_PASS_DEPENDENCY(LazyMachineBFIPass)
|
|
INITIALIZE_PASS_END(MachineOptimizationRemarkEmitterPass, ORE_NAME, ore_name,
|
|
false, true)
|