1 //===- OptimizationDiagnosticInfo.cpp - Optimization Diagnostic -*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // Optimization diagnostic interfaces. It's packaged as an analysis pass so
11 // that by using this service passes become dependent on BFI as well. BFI is
12 // used to compute the "hotness" of the diagnostic message.
13 //===----------------------------------------------------------------------===//
15 #include "llvm/Analysis/OptimizationDiagnosticInfo.h"
16 #include "llvm/Analysis/LazyBlockFrequencyInfo.h"
17 #include "llvm/Analysis/LoopInfo.h"
18 #include "llvm/IR/DiagnosticInfo.h"
19 #include "llvm/IR/LLVMContext.h"
23 Optional<uint64_t> OptimizationRemarkEmitter::computeHotness(Value *V) {
27 return BFI->getBlockProfileCount(cast<BasicBlock>(V));
30 void OptimizationRemarkEmitter::emitOptimizationRemarkMissed(
31 const char *PassName, const DebugLoc &DLoc, Value *V, const Twine &Msg) {
32 LLVMContext &Ctx = F->getContext();
33 Ctx.diagnose(DiagnosticInfoOptimizationRemarkMissed(PassName, *F, DLoc, Msg,
37 void OptimizationRemarkEmitter::emitOptimizationRemarkMissed(
38 const char *PassName, Loop *L, const Twine &Msg) {
39 emitOptimizationRemarkMissed(PassName, L->getStartLoc(), L->getHeader(), Msg);
42 OptimizationRemarkEmitterWrapperPass::OptimizationRemarkEmitterWrapperPass()
44 initializeOptimizationRemarkEmitterWrapperPassPass(
45 *PassRegistry::getPassRegistry());
48 bool OptimizationRemarkEmitterWrapperPass::runOnFunction(Function &Fn) {
49 BlockFrequencyInfo *BFI;
51 if (Fn.getContext().getDiagnosticHotnessRequested())
52 BFI = &getAnalysis<LazyBlockFrequencyInfoPass>().getBFI();
56 ORE = llvm::make_unique<OptimizationRemarkEmitter>(&Fn, BFI);
60 void OptimizationRemarkEmitterWrapperPass::getAnalysisUsage(
61 AnalysisUsage &AU) const {
62 LazyBlockFrequencyInfoPass::getLazyBFIAnalysisUsage(AU);
66 char OptimizationRemarkEmitterAnalysis::PassID;
68 OptimizationRemarkEmitter
69 OptimizationRemarkEmitterAnalysis::run(Function &F, AnalysisManager<Function> &AM) {
70 BlockFrequencyInfo *BFI;
72 if (F.getContext().getDiagnosticHotnessRequested())
73 BFI = &AM.getResult<BlockFrequencyAnalysis>(F);
77 return OptimizationRemarkEmitter(&F, BFI);
80 char OptimizationRemarkEmitterWrapperPass::ID = 0;
81 static const char ore_name[] = "Optimization Remark Emitter";
82 #define ORE_NAME "opt-remark-emitter"
84 INITIALIZE_PASS_BEGIN(OptimizationRemarkEmitterWrapperPass, ORE_NAME, ore_name,
86 INITIALIZE_PASS_DEPENDENCY(LazyBFIPass)
87 INITIALIZE_PASS_END(OptimizationRemarkEmitterWrapperPass, ORE_NAME, ore_name,