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This commit connects the machine function analysis pass (which creates machine functions) to the MIR parser, which will initialize the machine functions with the state from the MIR file and reconstruct the machine IR. This commit introduces a new interface called 'MachineFunctionInitializer', which can be used to provide custom initialization for the machine functions. This commit also introduces a new diagnostic class called 'DiagnosticInfoMIRParser' which is used for MIR parsing errors. This commit modifies the default diagnostic handling in LLVMContext - now the the diagnostics are printed directly into llvm::errs() so that the MIR parsing errors can be printed with colours. Reviewers: Justin Bogner Differential Revision: http://reviews.llvm.org/D9928 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239753 91177308-0d34-0410-b5e6-96231b3b80d8
215 lines
7.8 KiB
C++
215 lines
7.8 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 "LLVMContextImpl.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/IR/Constants.h"
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#include "llvm/IR/DebugInfo.h"
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#include "llvm/IR/DiagnosticInfo.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/Instruction.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/Support/CommandLine.h"
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#include "llvm/Support/Regex.h"
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#include <atomic>
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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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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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}
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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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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), LocCookie(0), MsgStr(MsgStr),
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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 DiagnosticInfoStackSize::print(DiagnosticPrinter &DP) const {
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DP << "stack size limit exceeded (" << getStackSize() << ") in "
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<< 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 DiagnosticInfoSampleProfile::print(DiagnosticPrinter &DP) const {
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if (getFileName() && getLineNum() > 0)
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DP << getFileName() << ":" << getLineNum() << ": ";
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else if (getFileName())
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DP << getFileName() << ": ";
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DP << getMsg();
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}
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bool DiagnosticInfoOptimizationBase::isLocationAvailable() const {
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return getDebugLoc();
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}
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void DiagnosticInfoOptimizationBase::getLocation(StringRef *Filename,
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unsigned *Line,
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unsigned *Column) const {
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DILocation *L = getDebugLoc();
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assert(L != nullptr && "debug location is invalid");
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*Filename = L->getFilename();
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*Line = L->getLine();
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*Column = L->getColumn();
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}
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const std::string DiagnosticInfoOptimizationBase::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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void DiagnosticInfoOptimizationBase::print(DiagnosticPrinter &DP) const {
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DP << getLocationStr() << ": " << getMsg();
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}
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bool DiagnosticInfoOptimizationRemark::isEnabled() const {
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return PassRemarksOptLoc.Pattern &&
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PassRemarksOptLoc.Pattern->match(getPassName());
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}
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bool DiagnosticInfoOptimizationRemarkMissed::isEnabled() const {
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return PassRemarksMissedOptLoc.Pattern &&
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PassRemarksMissedOptLoc.Pattern->match(getPassName());
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}
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bool DiagnosticInfoOptimizationRemarkAnalysis::isEnabled() const {
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return PassRemarksAnalysisOptLoc.Pattern &&
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PassRemarksAnalysisOptLoc.Pattern->match(getPassName());
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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, const DebugLoc &DLoc,
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const Twine &Msg) {
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Ctx.diagnose(DiagnosticInfoOptimizationRemark(PassName, Fn, DLoc, 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 DebugLoc &DLoc,
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const Twine &Msg) {
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Ctx.diagnose(DiagnosticInfoOptimizationRemarkMissed(PassName, Fn, DLoc, 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 DebugLoc &DLoc,
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const Twine &Msg) {
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Ctx.diagnose(
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DiagnosticInfoOptimizationRemarkAnalysis(PassName, Fn, DLoc, Msg));
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}
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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 llvm::emitLoopVectorizeWarning(LLVMContext &Ctx, const Function &Fn,
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const DebugLoc &DLoc, const Twine &Msg) {
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Ctx.diagnose(DiagnosticInfoOptimizationFailure(
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Fn, DLoc, Twine("loop not vectorized: " + Msg)));
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}
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void llvm::emitLoopInterleaveWarning(LLVMContext &Ctx, const Function &Fn,
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const DebugLoc &DLoc, const Twine &Msg) {
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Ctx.diagnose(DiagnosticInfoOptimizationFailure(
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Fn, DLoc, Twine("loop not interleaved: " + Msg)));
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}
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