forked from OSchip/llvm-project
414 lines
15 KiB
C++
414 lines
15 KiB
C++
//===- llvm/Support/DiagnosticInfo.cpp - Diagnostic Definitions -*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the different classes involved in low level diagnostics.
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//
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// Diagnostics reporting is still done as part of the LLVMContext.
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//===----------------------------------------------------------------------===//
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#include "llvm/IR/DiagnosticInfo.h"
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#include "llvm/ADT/StringExtras.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/ADT/iterator_range.h"
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#include "llvm/IR/BasicBlock.h"
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#include "llvm/IR/Constants.h"
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#include "llvm/IR/DebugInfoMetadata.h"
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#include "llvm/IR/DerivedTypes.h"
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#include "llvm/IR/DiagnosticPrinter.h"
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#include "llvm/IR/Function.h"
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#include "llvm/IR/GlobalValue.h"
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#include "llvm/IR/Instruction.h"
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#include "llvm/IR/LLVMContext.h"
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#include "llvm/IR/Metadata.h"
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#include "llvm/IR/Module.h"
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#include "llvm/IR/Type.h"
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#include "llvm/IR/Value.h"
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#include "llvm/Support/Casting.h"
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#include "llvm/Support/CommandLine.h"
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/Support/Regex.h"
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#include "llvm/Support/raw_ostream.h"
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#include <atomic>
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#include <cassert>
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#include <memory>
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#include <string>
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using namespace llvm;
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namespace {
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/// \brief Regular expression corresponding to the value given in one of the
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/// -pass-remarks* command line flags. Passes whose name matches this regexp
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/// will emit a diagnostic when calling the associated diagnostic function
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/// (emitOptimizationRemark, emitOptimizationRemarkMissed or
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/// emitOptimizationRemarkAnalysis).
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struct PassRemarksOpt {
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std::shared_ptr<Regex> Pattern;
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void operator=(const std::string &Val) {
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// Create a regexp object to match pass names for emitOptimizationRemark.
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if (!Val.empty()) {
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Pattern = std::make_shared<Regex>(Val);
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std::string RegexError;
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if (!Pattern->isValid(RegexError))
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report_fatal_error("Invalid regular expression '" + Val +
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"' in -pass-remarks: " + RegexError,
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false);
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}
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}
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};
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} // end anonymous namespace
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static PassRemarksOpt PassRemarksOptLoc;
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static PassRemarksOpt PassRemarksMissedOptLoc;
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static PassRemarksOpt PassRemarksAnalysisOptLoc;
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// -pass-remarks
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// Command line flag to enable emitOptimizationRemark()
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static cl::opt<PassRemarksOpt, true, cl::parser<std::string>>
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PassRemarks("pass-remarks", cl::value_desc("pattern"),
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cl::desc("Enable optimization remarks from passes whose name match "
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"the given regular expression"),
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cl::Hidden, cl::location(PassRemarksOptLoc), cl::ValueRequired,
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cl::ZeroOrMore);
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// -pass-remarks-missed
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// Command line flag to enable emitOptimizationRemarkMissed()
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static cl::opt<PassRemarksOpt, true, cl::parser<std::string>> PassRemarksMissed(
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"pass-remarks-missed", cl::value_desc("pattern"),
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cl::desc("Enable missed optimization remarks from passes whose name match "
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"the given regular expression"),
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cl::Hidden, cl::location(PassRemarksMissedOptLoc), cl::ValueRequired,
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cl::ZeroOrMore);
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// -pass-remarks-analysis
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// Command line flag to enable emitOptimizationRemarkAnalysis()
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static cl::opt<PassRemarksOpt, true, cl::parser<std::string>>
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PassRemarksAnalysis(
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"pass-remarks-analysis", cl::value_desc("pattern"),
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cl::desc(
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"Enable optimization analysis remarks from passes whose name match "
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"the given regular expression"),
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cl::Hidden, cl::location(PassRemarksAnalysisOptLoc), cl::ValueRequired,
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cl::ZeroOrMore);
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int llvm::getNextAvailablePluginDiagnosticKind() {
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static std::atomic<int> PluginKindID(DK_FirstPluginKind);
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return ++PluginKindID;
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}
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const char *OptimizationRemarkAnalysis::AlwaysPrint = "";
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DiagnosticInfoInlineAsm::DiagnosticInfoInlineAsm(const Instruction &I,
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const Twine &MsgStr,
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DiagnosticSeverity Severity)
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: DiagnosticInfo(DK_InlineAsm, Severity), MsgStr(MsgStr), Instr(&I) {
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if (const MDNode *SrcLoc = I.getMetadata("srcloc")) {
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if (SrcLoc->getNumOperands() != 0)
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if (const auto *CI =
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mdconst::dyn_extract<ConstantInt>(SrcLoc->getOperand(0)))
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LocCookie = CI->getZExtValue();
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}
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}
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void DiagnosticInfoInlineAsm::print(DiagnosticPrinter &DP) const {
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DP << getMsgStr();
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if (getLocCookie())
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DP << " at line " << getLocCookie();
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}
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void DiagnosticInfoResourceLimit::print(DiagnosticPrinter &DP) const {
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DP << getResourceName() << " limit";
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if (getResourceLimit() != 0)
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DP << " of " << getResourceLimit();
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DP << " exceeded (" << getResourceSize() << ") in " << getFunction();
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}
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void DiagnosticInfoDebugMetadataVersion::print(DiagnosticPrinter &DP) const {
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DP << "ignoring debug info with an invalid version (" << getMetadataVersion()
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<< ") in " << getModule();
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}
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void DiagnosticInfoIgnoringInvalidDebugMetadata::print(
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DiagnosticPrinter &DP) const {
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DP << "ignoring invalid debug info in " << getModule().getModuleIdentifier();
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}
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void DiagnosticInfoSampleProfile::print(DiagnosticPrinter &DP) const {
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if (!FileName.empty()) {
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DP << getFileName();
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if (LineNum > 0)
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DP << ":" << getLineNum();
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DP << ": ";
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}
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DP << getMsg();
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}
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void DiagnosticInfoPGOProfile::print(DiagnosticPrinter &DP) const {
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if (getFileName())
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DP << getFileName() << ": ";
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DP << getMsg();
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}
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DiagnosticLocation::DiagnosticLocation(const DebugLoc &DL) {
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if (!DL)
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return;
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Filename = DL->getFilename();
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Line = DL->getLine();
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Column = DL->getColumn();
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}
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DiagnosticLocation::DiagnosticLocation(const DISubprogram *SP) {
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if (!SP)
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return;
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Filename = SP->getFilename();
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Line = SP->getScopeLine();
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Column = 0;
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}
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void DiagnosticInfoWithLocationBase::getLocation(StringRef *Filename,
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unsigned *Line,
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unsigned *Column) const {
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*Filename = Loc.getFilename();
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*Line = Loc.getLine();
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*Column = Loc.getColumn();
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}
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const std::string DiagnosticInfoWithLocationBase::getLocationStr() const {
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StringRef Filename("<unknown>");
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unsigned Line = 0;
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unsigned Column = 0;
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if (isLocationAvailable())
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getLocation(&Filename, &Line, &Column);
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return (Filename + ":" + Twine(Line) + ":" + Twine(Column)).str();
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}
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DiagnosticInfoOptimizationBase::Argument::Argument(StringRef Key, const Value *V)
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: Key(Key) {
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if (auto *F = dyn_cast<Function>(V)) {
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if (DISubprogram *SP = F->getSubprogram())
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Loc = SP;
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}
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else if (auto *I = dyn_cast<Instruction>(V))
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Loc = I->getDebugLoc();
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// Only include names that correspond to user variables. FIXME: we should use
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// debug info if available to get the name of the user variable.
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if (isa<llvm::Argument>(V) || isa<GlobalValue>(V))
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Val = GlobalValue::dropLLVMManglingEscape(V->getName());
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else if (isa<Constant>(V)) {
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raw_string_ostream OS(Val);
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V->printAsOperand(OS, /*PrintType=*/false);
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} else if (auto *I = dyn_cast<Instruction>(V))
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Val = I->getOpcodeName();
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}
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DiagnosticInfoOptimizationBase::Argument::Argument(StringRef Key, const Type *T)
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: Key(Key) {
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raw_string_ostream OS(Val);
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OS << *T;
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}
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DiagnosticInfoOptimizationBase::Argument::Argument(StringRef Key, int N)
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: Key(Key), Val(itostr(N)) {}
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DiagnosticInfoOptimizationBase::Argument::Argument(StringRef Key, unsigned N)
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: Key(Key), Val(utostr(N)) {}
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void DiagnosticInfoOptimizationBase::print(DiagnosticPrinter &DP) const {
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DP << getLocationStr() << ": " << getMsg();
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if (Hotness)
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DP << " (hotness: " << *Hotness << ")";
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}
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OptimizationRemark::OptimizationRemark(const char *PassName,
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StringRef RemarkName,
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const DiagnosticLocation &Loc,
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const Value *CodeRegion)
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: DiagnosticInfoIROptimization(
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DK_OptimizationRemark, DS_Remark, PassName, RemarkName,
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*cast<BasicBlock>(CodeRegion)->getParent(), Loc, CodeRegion) {}
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OptimizationRemark::OptimizationRemark(const char *PassName,
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StringRef RemarkName,
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const Instruction *Inst)
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: DiagnosticInfoIROptimization(DK_OptimizationRemark, DS_Remark, PassName,
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RemarkName, *Inst->getParent()->getParent(),
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Inst->getDebugLoc(), Inst->getParent()) {}
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// Helper to allow for an assert before attempting to return an invalid
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// reference.
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static const BasicBlock &getFirstFunctionBlock(const Function *Func) {
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assert(!Func->empty() && "Function does not have a body");
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return Func->front();
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}
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OptimizationRemark::OptimizationRemark(const char *PassName,
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StringRef RemarkName,
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const Function *Func)
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: DiagnosticInfoIROptimization(DK_OptimizationRemark, DS_Remark, PassName,
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RemarkName, *Func, Func->getSubprogram(),
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&getFirstFunctionBlock(Func)) {}
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bool OptimizationRemark::isEnabled(StringRef PassName) {
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return PassRemarksOptLoc.Pattern &&
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PassRemarksOptLoc.Pattern->match(PassName);
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}
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OptimizationRemarkMissed::OptimizationRemarkMissed(
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const char *PassName, StringRef RemarkName, const DiagnosticLocation &Loc,
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const Value *CodeRegion)
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: DiagnosticInfoIROptimization(
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DK_OptimizationRemarkMissed, DS_Remark, PassName, RemarkName,
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*cast<BasicBlock>(CodeRegion)->getParent(), Loc, CodeRegion) {}
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OptimizationRemarkMissed::OptimizationRemarkMissed(const char *PassName,
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StringRef RemarkName,
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const Instruction *Inst)
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: DiagnosticInfoIROptimization(DK_OptimizationRemarkMissed, DS_Remark,
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PassName, RemarkName,
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*Inst->getParent()->getParent(),
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Inst->getDebugLoc(), Inst->getParent()) {}
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bool OptimizationRemarkMissed::isEnabled(StringRef PassName) {
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return PassRemarksMissedOptLoc.Pattern &&
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PassRemarksMissedOptLoc.Pattern->match(PassName);
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}
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OptimizationRemarkAnalysis::OptimizationRemarkAnalysis(
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const char *PassName, StringRef RemarkName, const DiagnosticLocation &Loc,
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const Value *CodeRegion)
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: DiagnosticInfoIROptimization(
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DK_OptimizationRemarkAnalysis, DS_Remark, PassName, RemarkName,
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*cast<BasicBlock>(CodeRegion)->getParent(), Loc, CodeRegion) {}
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OptimizationRemarkAnalysis::OptimizationRemarkAnalysis(const char *PassName,
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StringRef RemarkName,
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const Instruction *Inst)
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: DiagnosticInfoIROptimization(DK_OptimizationRemarkAnalysis, DS_Remark,
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PassName, RemarkName,
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*Inst->getParent()->getParent(),
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Inst->getDebugLoc(), Inst->getParent()) {}
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OptimizationRemarkAnalysis::OptimizationRemarkAnalysis(
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enum DiagnosticKind Kind, const char *PassName, StringRef RemarkName,
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const DiagnosticLocation &Loc, const Value *CodeRegion)
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: DiagnosticInfoIROptimization(Kind, DS_Remark, PassName, RemarkName,
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*cast<BasicBlock>(CodeRegion)->getParent(),
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Loc, CodeRegion) {}
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bool OptimizationRemarkAnalysis::isEnabled(StringRef PassName) {
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return PassRemarksAnalysisOptLoc.Pattern &&
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PassRemarksAnalysisOptLoc.Pattern->match(PassName);
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}
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void DiagnosticInfoMIRParser::print(DiagnosticPrinter &DP) const {
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DP << Diagnostic;
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}
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void llvm::emitOptimizationRemark(LLVMContext &Ctx, const char *PassName,
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const Function &Fn,
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const DiagnosticLocation &Loc,
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const Twine &Msg) {
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Ctx.diagnose(OptimizationRemark(PassName, Fn, Loc, Msg));
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}
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void llvm::emitOptimizationRemarkMissed(LLVMContext &Ctx, const char *PassName,
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const Function &Fn,
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const DiagnosticLocation &Loc,
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const Twine &Msg) {
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Ctx.diagnose(OptimizationRemarkMissed(PassName, Fn, Loc, Msg));
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}
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void llvm::emitOptimizationRemarkAnalysis(LLVMContext &Ctx,
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const char *PassName,
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const Function &Fn,
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const DiagnosticLocation &Loc,
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const Twine &Msg) {
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Ctx.diagnose(OptimizationRemarkAnalysis(PassName, Fn, Loc, Msg));
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}
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void llvm::emitOptimizationRemarkAnalysisFPCommute(
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LLVMContext &Ctx, const char *PassName, const Function &Fn,
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const DiagnosticLocation &Loc, const Twine &Msg) {
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Ctx.diagnose(OptimizationRemarkAnalysisFPCommute(PassName, Fn, Loc, Msg));
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}
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void llvm::emitOptimizationRemarkAnalysisAliasing(LLVMContext &Ctx,
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const char *PassName,
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const Function &Fn,
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const DiagnosticLocation &Loc,
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const Twine &Msg) {
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Ctx.diagnose(OptimizationRemarkAnalysisAliasing(PassName, Fn, Loc, Msg));
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}
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DiagnosticInfoOptimizationFailure::DiagnosticInfoOptimizationFailure(
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const char *PassName, StringRef RemarkName, const DiagnosticLocation &Loc,
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const Value *CodeRegion)
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: DiagnosticInfoIROptimization(
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DK_OptimizationFailure, DS_Warning, PassName, RemarkName,
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*cast<BasicBlock>(CodeRegion)->getParent(), Loc, CodeRegion) {}
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bool DiagnosticInfoOptimizationFailure::isEnabled() const {
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// Only print warnings.
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return getSeverity() == DS_Warning;
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}
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void DiagnosticInfoUnsupported::print(DiagnosticPrinter &DP) const {
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std::string Str;
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raw_string_ostream OS(Str);
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OS << getLocationStr() << ": in function " << getFunction().getName() << ' '
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<< *getFunction().getFunctionType() << ": " << Msg << '\n';
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OS.flush();
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DP << Str;
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}
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void DiagnosticInfoISelFallback::print(DiagnosticPrinter &DP) const {
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DP << "Instruction selection used fallback path for " << getFunction();
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}
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DiagnosticInfoOptimizationBase &DiagnosticInfoOptimizationBase::
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operator<<(StringRef S) {
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Args.emplace_back(S);
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return *this;
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}
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DiagnosticInfoOptimizationBase &DiagnosticInfoOptimizationBase::
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operator<<(Argument A) {
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Args.push_back(std::move(A));
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return *this;
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}
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DiagnosticInfoOptimizationBase &DiagnosticInfoOptimizationBase::
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operator<<(setIsVerbose V) {
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IsVerbose = true;
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return *this;
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}
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DiagnosticInfoOptimizationBase &DiagnosticInfoOptimizationBase::
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operator<<(setExtraArgs EA) {
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FirstExtraArgIndex = Args.size();
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return *this;
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}
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std::string DiagnosticInfoOptimizationBase::getMsg() const {
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std::string Str;
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raw_string_ostream OS(Str);
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for (const DiagnosticInfoOptimizationBase::Argument &Arg :
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make_range(Args.begin(), FirstExtraArgIndex == -1
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? Args.end()
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: Args.begin() + FirstExtraArgIndex))
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OS << Arg.Val;
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return OS.str();
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}
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