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http://lab.llvm.org:8011/builders/sanitizer-x86_64-linux-bootstrap/builds/2959 The location string is returned as a std::string, not a StringRef. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206032 91177308-0d34-0410-b5e6-96231b3b80d8
300 lines
11 KiB
C++
300 lines
11 KiB
C++
//===- llvm/Support/DiagnosticInfo.h - Diagnostic Declaration ---*- 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 declares 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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#ifndef LLVM_SUPPORT_DIAGNOSTICINFO_H
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#define LLVM_SUPPORT_DIAGNOSTICINFO_H
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#include "llvm/ADT/ArrayRef.h"
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#include "llvm/Support/Casting.h"
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namespace llvm {
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// Forward declarations.
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class DiagnosticPrinter;
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class Function;
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class Instruction;
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class Twine;
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class Value;
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class DebugLoc;
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/// \brief Defines the different supported severity of a diagnostic.
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enum DiagnosticSeverity {
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DS_Error,
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DS_Warning,
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DS_Remark,
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// A note attaches additional information to one of the previous diagnostic
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// types.
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DS_Note
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};
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/// \brief Defines the different supported kind of a diagnostic.
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/// This enum should be extended with a new ID for each added concrete subclass.
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enum DiagnosticKind {
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DK_InlineAsm,
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DK_StackSize,
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DK_DebugMetadataVersion,
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DK_SampleProfile,
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DK_OptimizationRemark,
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DK_FirstPluginKind
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};
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/// \brief Get the next available kind ID for a plugin diagnostic.
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/// Each time this function is called, it returns a different number.
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/// Therefore, a plugin that wants to "identify" its own classes
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/// with a dynamic identifier, just have to use this method to get a new ID
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/// and assign it to each of its classes.
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/// The returned ID will be greater than or equal to DK_FirstPluginKind.
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/// Thus, the plugin identifiers will not conflict with the
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/// DiagnosticKind values.
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int getNextAvailablePluginDiagnosticKind();
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/// \brief This is the base abstract class for diagnostic reporting in
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/// the backend.
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/// The print method must be overloaded by the subclasses to print a
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/// user-friendly message in the client of the backend (let us call it a
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/// frontend).
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class DiagnosticInfo {
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private:
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/// Kind defines the kind of report this is about.
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const /* DiagnosticKind */ int Kind;
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/// Severity gives the severity of the diagnostic.
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const DiagnosticSeverity Severity;
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public:
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DiagnosticInfo(/* DiagnosticKind */ int Kind, DiagnosticSeverity Severity)
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: Kind(Kind), Severity(Severity) {}
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virtual ~DiagnosticInfo() {}
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/* DiagnosticKind */ int getKind() const { return Kind; }
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DiagnosticSeverity getSeverity() const { return Severity; }
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/// Print using the given \p DP a user-friendly message.
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/// This is the default message that will be printed to the user.
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/// It is used when the frontend does not directly take advantage
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/// of the information contained in fields of the subclasses.
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/// The printed message must not end with '.' nor start with a severity
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/// keyword.
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virtual void print(DiagnosticPrinter &DP) const = 0;
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};
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/// Diagnostic information for inline asm reporting.
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/// This is basically a message and an optional location.
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class DiagnosticInfoInlineAsm : public DiagnosticInfo {
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private:
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/// Optional line information. 0 if not set.
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unsigned LocCookie;
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/// Message to be reported.
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const Twine &MsgStr;
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/// Optional origin of the problem.
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const Instruction *Instr;
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public:
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/// \p MsgStr is the message to be reported to the frontend.
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/// This class does not copy \p MsgStr, therefore the reference must be valid
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/// for the whole life time of the Diagnostic.
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DiagnosticInfoInlineAsm(const Twine &MsgStr,
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DiagnosticSeverity Severity = DS_Error)
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: DiagnosticInfo(DK_InlineAsm, Severity), LocCookie(0), MsgStr(MsgStr),
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Instr(nullptr) {}
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/// \p LocCookie if non-zero gives the line number for this report.
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/// \p MsgStr gives the message.
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/// This class does not copy \p MsgStr, therefore the reference must be valid
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/// for the whole life time of the Diagnostic.
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DiagnosticInfoInlineAsm(unsigned LocCookie, const Twine &MsgStr,
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DiagnosticSeverity Severity = DS_Error)
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: DiagnosticInfo(DK_InlineAsm, Severity), LocCookie(LocCookie),
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MsgStr(MsgStr), Instr(nullptr) {}
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/// \p Instr gives the original instruction that triggered the diagnostic.
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/// \p MsgStr gives the message.
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/// This class does not copy \p MsgStr, therefore the reference must be valid
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/// for the whole life time of the Diagnostic.
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/// Same for \p I.
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DiagnosticInfoInlineAsm(const Instruction &I, const Twine &MsgStr,
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DiagnosticSeverity Severity = DS_Error);
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unsigned getLocCookie() const { return LocCookie; }
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const Twine &getMsgStr() const { return MsgStr; }
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const Instruction *getInstruction() const { return Instr; }
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/// \see DiagnosticInfo::print.
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void print(DiagnosticPrinter &DP) const override;
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/// Hand rolled RTTI.
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static bool classof(const DiagnosticInfo *DI) {
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return DI->getKind() == DK_InlineAsm;
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}
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};
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/// Diagnostic information for stack size reporting.
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/// This is basically a function and a size.
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class DiagnosticInfoStackSize : public DiagnosticInfo {
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private:
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/// The function that is concerned by this stack size diagnostic.
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const Function &Fn;
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/// The computed stack size.
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unsigned StackSize;
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public:
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/// \p The function that is concerned by this stack size diagnostic.
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/// \p The computed stack size.
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DiagnosticInfoStackSize(const Function &Fn, unsigned StackSize,
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DiagnosticSeverity Severity = DS_Warning)
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: DiagnosticInfo(DK_StackSize, Severity), Fn(Fn), StackSize(StackSize) {}
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const Function &getFunction() const { return Fn; }
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unsigned getStackSize() const { return StackSize; }
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/// \see DiagnosticInfo::print.
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void print(DiagnosticPrinter &DP) const override;
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/// Hand rolled RTTI.
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static bool classof(const DiagnosticInfo *DI) {
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return DI->getKind() == DK_StackSize;
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}
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};
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/// Diagnostic information for debug metadata version reporting.
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/// This is basically a module and a version.
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class DiagnosticInfoDebugMetadataVersion : public DiagnosticInfo {
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private:
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/// The module that is concerned by this debug metadata version diagnostic.
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const Module &M;
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/// The actual metadata version.
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unsigned MetadataVersion;
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public:
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/// \p The module that is concerned by this debug metadata version diagnostic.
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/// \p The actual metadata version.
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DiagnosticInfoDebugMetadataVersion(const Module &M, unsigned MetadataVersion,
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DiagnosticSeverity Severity = DS_Warning)
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: DiagnosticInfo(DK_DebugMetadataVersion, Severity), M(M),
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MetadataVersion(MetadataVersion) {}
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const Module &getModule() const { return M; }
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unsigned getMetadataVersion() const { return MetadataVersion; }
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/// \see DiagnosticInfo::print.
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void print(DiagnosticPrinter &DP) const override;
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/// Hand rolled RTTI.
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static bool classof(const DiagnosticInfo *DI) {
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return DI->getKind() == DK_DebugMetadataVersion;
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}
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};
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/// Diagnostic information for the sample profiler.
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class DiagnosticInfoSampleProfile : public DiagnosticInfo {
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public:
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DiagnosticInfoSampleProfile(const char *FileName, unsigned LineNum,
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const Twine &Msg,
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DiagnosticSeverity Severity = DS_Error)
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: DiagnosticInfo(DK_SampleProfile, Severity), FileName(FileName),
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LineNum(LineNum), Msg(Msg) {}
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DiagnosticInfoSampleProfile(const char *FileName, const Twine &Msg,
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DiagnosticSeverity Severity = DS_Error)
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: DiagnosticInfo(DK_SampleProfile, Severity), FileName(FileName),
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LineNum(0), Msg(Msg) {}
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DiagnosticInfoSampleProfile(const Twine &Msg,
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DiagnosticSeverity Severity = DS_Error)
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: DiagnosticInfo(DK_SampleProfile, Severity), FileName(nullptr),
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LineNum(0), Msg(Msg) {}
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/// \see DiagnosticInfo::print.
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void print(DiagnosticPrinter &DP) const override;
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/// Hand rolled RTTI.
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static bool classof(const DiagnosticInfo *DI) {
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return DI->getKind() == DK_SampleProfile;
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}
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const char *getFileName() const { return FileName; }
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unsigned getLineNum() const { return LineNum; }
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const Twine &getMsg() const { return Msg; }
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private:
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/// Name of the input file associated with this diagnostic.
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const char *FileName;
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/// Line number where the diagnostic occurred. If 0, no line number will
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/// be emitted in the message.
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unsigned LineNum;
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/// Message to report.
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const Twine &Msg;
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};
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/// Diagnostic information for optimization remarks.
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class DiagnosticInfoOptimizationRemark : public DiagnosticInfo {
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public:
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/// \p PassName is the name of the pass emitting this diagnostic. If
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/// this name matches the regular expression given in -Rpass=, then the
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/// diagnostic will be emitted. \p Fn is the function where the diagnostic
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/// is being emitted. \p DLoc is the location information to use in the
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/// diagnostic. If line table information is available, the diagnostic
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/// will include the source code location. \p Msg is the message to show.
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/// Note that this class does not copy this message, so this reference
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/// must be valid for the whole life time of the diagnostic.
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DiagnosticInfoOptimizationRemark(const char *PassName, const Function &Fn,
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const DebugLoc &DLoc, const Twine &Msg)
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: DiagnosticInfo(DK_OptimizationRemark, DS_Remark), PassName(PassName),
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Fn(Fn), DLoc(DLoc), Msg(Msg) {}
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/// \see DiagnosticInfo::print.
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void print(DiagnosticPrinter &DP) const override;
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/// Hand rolled RTTI.
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static bool classof(const DiagnosticInfo *DI) {
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return DI->getKind() == DK_OptimizationRemark;
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}
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/// Return true if location information is available for this diagnostic.
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bool isLocationAvailable() const;
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/// Return a string with the location information for this diagnostic
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/// in the format "file:line:col". If location information is not available,
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/// it returns "<unknown>:0:0".
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const std::string getLocationStr() const;
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/// Return location information for this diagnostic in three parts:
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/// the source file name, line number and column.
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void getLocation(StringRef *Filename, unsigned *Line, unsigned *Column) const;
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const char *getPassName() const { return PassName; }
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const Function &getFunction() const { return Fn; }
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const DebugLoc &getDebugLoc() const { return DLoc; }
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const Twine &getMsg() const { return Msg; }
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private:
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/// Name of the pass that triggers this report. If this matches the
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/// regular expression given in -Rpass=regexp, then the remark will
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/// be emitted.
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const char *PassName;
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/// Function where this diagnostic is triggered.
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const Function &Fn;
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/// Debug location where this diagnostic is triggered.
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const DebugLoc &DLoc;
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/// Message to report.
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const Twine &Msg;
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};
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} // End namespace llvm
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#endif
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