llvm-6502/include/llvm/IR/DiagnosticInfo.h
Rafael Espindola 72478e59c7 Update the error handling of lib/Linker.
Instead of passing a std::string&, use the new diagnostic infrastructure.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@220608 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-25 04:06:10 +00:00

455 lines
19 KiB
C++

//===- llvm/Support/DiagnosticInfo.h - Diagnostic Declaration ---*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file declares the different classes involved in low level diagnostics.
//
// Diagnostics reporting is still done as part of the LLVMContext.
//===----------------------------------------------------------------------===//
#ifndef LLVM_IR_DIAGNOSTICINFO_H
#define LLVM_IR_DIAGNOSTICINFO_H
#include "llvm-c/Core.h"
#include "llvm/ADT/ArrayRef.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/IR/Module.h"
#include "llvm/Support/Casting.h"
namespace llvm {
// Forward declarations.
class DiagnosticPrinter;
class Function;
class Instruction;
class LLVMContextImpl;
class Twine;
class Value;
class DebugLoc;
/// \brief Defines the different supported severity of a diagnostic.
enum DiagnosticSeverity {
DS_Error,
DS_Warning,
DS_Remark,
// A note attaches additional information to one of the previous diagnostic
// types.
DS_Note
};
/// \brief Defines the different supported kind of a diagnostic.
/// This enum should be extended with a new ID for each added concrete subclass.
enum DiagnosticKind {
DK_InlineAsm,
DK_StackSize,
DK_Linker,
DK_DebugMetadataVersion,
DK_SampleProfile,
DK_OptimizationRemark,
DK_OptimizationRemarkMissed,
DK_OptimizationRemarkAnalysis,
DK_OptimizationFailure,
DK_FirstPluginKind
};
/// \brief Get the next available kind ID for a plugin diagnostic.
/// Each time this function is called, it returns a different number.
/// Therefore, a plugin that wants to "identify" its own classes
/// with a dynamic identifier, just have to use this method to get a new ID
/// and assign it to each of its classes.
/// The returned ID will be greater than or equal to DK_FirstPluginKind.
/// Thus, the plugin identifiers will not conflict with the
/// DiagnosticKind values.
int getNextAvailablePluginDiagnosticKind();
/// \brief This is the base abstract class for diagnostic reporting in
/// the backend.
/// The print method must be overloaded by the subclasses to print a
/// user-friendly message in the client of the backend (let us call it a
/// frontend).
class DiagnosticInfo {
private:
/// Kind defines the kind of report this is about.
const /* DiagnosticKind */ int Kind;
/// Severity gives the severity of the diagnostic.
const DiagnosticSeverity Severity;
public:
DiagnosticInfo(/* DiagnosticKind */ int Kind, DiagnosticSeverity Severity)
: Kind(Kind), Severity(Severity) {}
virtual ~DiagnosticInfo() {}
/* DiagnosticKind */ int getKind() const { return Kind; }
DiagnosticSeverity getSeverity() const { return Severity; }
/// Print using the given \p DP a user-friendly message.
/// This is the default message that will be printed to the user.
/// It is used when the frontend does not directly take advantage
/// of the information contained in fields of the subclasses.
/// The printed message must not end with '.' nor start with a severity
/// keyword.
virtual void print(DiagnosticPrinter &DP) const = 0;
};
/// Diagnostic information for inline asm reporting.
/// This is basically a message and an optional location.
class DiagnosticInfoInlineAsm : public DiagnosticInfo {
private:
/// Optional line information. 0 if not set.
unsigned LocCookie;
/// Message to be reported.
const Twine &MsgStr;
/// Optional origin of the problem.
const Instruction *Instr;
public:
/// \p MsgStr is the message to be reported to the frontend.
/// This class does not copy \p MsgStr, therefore the reference must be valid
/// for the whole life time of the Diagnostic.
DiagnosticInfoInlineAsm(const Twine &MsgStr,
DiagnosticSeverity Severity = DS_Error)
: DiagnosticInfo(DK_InlineAsm, Severity), LocCookie(0), MsgStr(MsgStr),
Instr(nullptr) {}
/// \p LocCookie if non-zero gives the line number for this report.
/// \p MsgStr gives the message.
/// This class does not copy \p MsgStr, therefore the reference must be valid
/// for the whole life time of the Diagnostic.
DiagnosticInfoInlineAsm(unsigned LocCookie, const Twine &MsgStr,
DiagnosticSeverity Severity = DS_Error)
: DiagnosticInfo(DK_InlineAsm, Severity), LocCookie(LocCookie),
MsgStr(MsgStr), Instr(nullptr) {}
/// \p Instr gives the original instruction that triggered the diagnostic.
/// \p MsgStr gives the message.
/// This class does not copy \p MsgStr, therefore the reference must be valid
/// for the whole life time of the Diagnostic.
/// Same for \p I.
DiagnosticInfoInlineAsm(const Instruction &I, const Twine &MsgStr,
DiagnosticSeverity Severity = DS_Error);
unsigned getLocCookie() const { return LocCookie; }
const Twine &getMsgStr() const { return MsgStr; }
const Instruction *getInstruction() const { return Instr; }
/// \see DiagnosticInfo::print.
void print(DiagnosticPrinter &DP) const override;
static bool classof(const DiagnosticInfo *DI) {
return DI->getKind() == DK_InlineAsm;
}
};
/// Diagnostic information for stack size reporting.
/// This is basically a function and a size.
class DiagnosticInfoStackSize : public DiagnosticInfo {
private:
/// The function that is concerned by this stack size diagnostic.
const Function &Fn;
/// The computed stack size.
unsigned StackSize;
public:
/// \p The function that is concerned by this stack size diagnostic.
/// \p The computed stack size.
DiagnosticInfoStackSize(const Function &Fn, unsigned StackSize,
DiagnosticSeverity Severity = DS_Warning)
: DiagnosticInfo(DK_StackSize, Severity), Fn(Fn), StackSize(StackSize) {}
const Function &getFunction() const { return Fn; }
unsigned getStackSize() const { return StackSize; }
/// \see DiagnosticInfo::print.
void print(DiagnosticPrinter &DP) const override;
static bool classof(const DiagnosticInfo *DI) {
return DI->getKind() == DK_StackSize;
}
};
/// Diagnostic information for debug metadata version reporting.
/// This is basically a module and a version.
class DiagnosticInfoDebugMetadataVersion : public DiagnosticInfo {
private:
/// The module that is concerned by this debug metadata version diagnostic.
const Module &M;
/// The actual metadata version.
unsigned MetadataVersion;
public:
/// \p The module that is concerned by this debug metadata version diagnostic.
/// \p The actual metadata version.
DiagnosticInfoDebugMetadataVersion(const Module &M, unsigned MetadataVersion,
DiagnosticSeverity Severity = DS_Warning)
: DiagnosticInfo(DK_DebugMetadataVersion, Severity), M(M),
MetadataVersion(MetadataVersion) {}
const Module &getModule() const { return M; }
unsigned getMetadataVersion() const { return MetadataVersion; }
/// \see DiagnosticInfo::print.
void print(DiagnosticPrinter &DP) const override;
static bool classof(const DiagnosticInfo *DI) {
return DI->getKind() == DK_DebugMetadataVersion;
}
};
/// Diagnostic information for the sample profiler.
class DiagnosticInfoSampleProfile : public DiagnosticInfo {
public:
DiagnosticInfoSampleProfile(const char *FileName, unsigned LineNum,
const Twine &Msg,
DiagnosticSeverity Severity = DS_Error)
: DiagnosticInfo(DK_SampleProfile, Severity), FileName(FileName),
LineNum(LineNum), Msg(Msg) {}
DiagnosticInfoSampleProfile(const char *FileName, const Twine &Msg,
DiagnosticSeverity Severity = DS_Error)
: DiagnosticInfo(DK_SampleProfile, Severity), FileName(FileName),
LineNum(0), Msg(Msg) {}
DiagnosticInfoSampleProfile(const Twine &Msg,
DiagnosticSeverity Severity = DS_Error)
: DiagnosticInfo(DK_SampleProfile, Severity), FileName(nullptr),
LineNum(0), Msg(Msg) {}
/// \see DiagnosticInfo::print.
void print(DiagnosticPrinter &DP) const override;
static bool classof(const DiagnosticInfo *DI) {
return DI->getKind() == DK_SampleProfile;
}
const char *getFileName() const { return FileName; }
unsigned getLineNum() const { return LineNum; }
const Twine &getMsg() const { return Msg; }
private:
/// Name of the input file associated with this diagnostic.
const char *FileName;
/// Line number where the diagnostic occurred. If 0, no line number will
/// be emitted in the message.
unsigned LineNum;
/// Message to report.
const Twine &Msg;
};
/// Common features for diagnostics dealing with optimization remarks.
class DiagnosticInfoOptimizationBase : public DiagnosticInfo {
public:
/// \p PassName is the name of the pass emitting this diagnostic.
/// \p Fn is the function where the diagnostic is being emitted. \p DLoc is
/// the location information to use in the diagnostic. If line table
/// information is available, the diagnostic will include the source code
/// location. \p Msg is the message to show. Note that this class does not
/// copy this message, so this reference must be valid for the whole life time
/// of the diagnostic.
DiagnosticInfoOptimizationBase(enum DiagnosticKind Kind,
enum DiagnosticSeverity Severity,
const char *PassName, const Function &Fn,
const DebugLoc &DLoc, const Twine &Msg)
: DiagnosticInfo(Kind, Severity), PassName(PassName), Fn(Fn), DLoc(DLoc),
Msg(Msg) {}
/// \see DiagnosticInfo::print.
void print(DiagnosticPrinter &DP) const override;
static bool classof(const DiagnosticInfo *DI) {
return DI->getKind() == DK_OptimizationRemark;
}
/// Return true if this optimization remark is enabled by one of
/// of the LLVM command line flags (-pass-remarks, -pass-remarks-missed,
/// or -pass-remarks-analysis). Note that this only handles the LLVM
/// flags. We cannot access Clang flags from here (they are handled
/// in BackendConsumer::OptimizationRemarkHandler).
virtual bool isEnabled() const = 0;
/// Return true if location information is available for this diagnostic.
bool isLocationAvailable() const;
/// Return a string with the location information for this diagnostic
/// in the format "file:line:col". If location information is not available,
/// it returns "<unknown>:0:0".
const std::string getLocationStr() const;
/// Return location information for this diagnostic in three parts:
/// the source file name, line number and column.
void getLocation(StringRef *Filename, unsigned *Line, unsigned *Column) const;
const char *getPassName() const { return PassName; }
const Function &getFunction() const { return Fn; }
const DebugLoc &getDebugLoc() const { return DLoc; }
const Twine &getMsg() const { return Msg; }
private:
/// Name of the pass that triggers this report. If this matches the
/// regular expression given in -Rpass=regexp, then the remark will
/// be emitted.
const char *PassName;
/// Function where this diagnostic is triggered.
const Function &Fn;
/// Debug location where this diagnostic is triggered.
DebugLoc DLoc;
/// Message to report.
const Twine &Msg;
};
/// Diagnostic information for applied optimization remarks.
class DiagnosticInfoOptimizationRemark : public DiagnosticInfoOptimizationBase {
public:
/// \p PassName is the name of the pass emitting this diagnostic. If
/// this name matches the regular expression given in -Rpass=, then the
/// diagnostic will be emitted. \p Fn is the function where the diagnostic
/// is being emitted. \p DLoc is the location information to use in the
/// diagnostic. If line table information is available, the diagnostic
/// will include the source code location. \p Msg is the message to show.
/// Note that this class does not copy this message, so this reference
/// must be valid for the whole life time of the diagnostic.
DiagnosticInfoOptimizationRemark(const char *PassName, const Function &Fn,
const DebugLoc &DLoc, const Twine &Msg)
: DiagnosticInfoOptimizationBase(DK_OptimizationRemark, DS_Remark,
PassName, Fn, DLoc, Msg) {}
static bool classof(const DiagnosticInfo *DI) {
return DI->getKind() == DK_OptimizationRemark;
}
/// \see DiagnosticInfoOptimizationBase::isEnabled.
bool isEnabled() const override;
};
/// Diagnostic information for missed-optimization remarks.
class DiagnosticInfoOptimizationRemarkMissed
: public DiagnosticInfoOptimizationBase {
public:
/// \p PassName is the name of the pass emitting this diagnostic. If
/// this name matches the regular expression given in -Rpass-missed=, then the
/// diagnostic will be emitted. \p Fn is the function where the diagnostic
/// is being emitted. \p DLoc is the location information to use in the
/// diagnostic. If line table information is available, the diagnostic
/// will include the source code location. \p Msg is the message to show.
/// Note that this class does not copy this message, so this reference
/// must be valid for the whole life time of the diagnostic.
DiagnosticInfoOptimizationRemarkMissed(const char *PassName,
const Function &Fn,
const DebugLoc &DLoc, const Twine &Msg)
: DiagnosticInfoOptimizationBase(DK_OptimizationRemarkMissed, DS_Remark,
PassName, Fn, DLoc, Msg) {}
static bool classof(const DiagnosticInfo *DI) {
return DI->getKind() == DK_OptimizationRemarkMissed;
}
/// \see DiagnosticInfoOptimizationBase::isEnabled.
bool isEnabled() const override;
};
/// Diagnostic information for optimization analysis remarks.
class DiagnosticInfoOptimizationRemarkAnalysis
: public DiagnosticInfoOptimizationBase {
public:
/// \p PassName is the name of the pass emitting this diagnostic. If
/// this name matches the regular expression given in -Rpass-analysis=, then
/// the diagnostic will be emitted. \p Fn is the function where the diagnostic
/// is being emitted. \p DLoc is the location information to use in the
/// diagnostic. If line table information is available, the diagnostic will
/// include the source code location. \p Msg is the message to show. Note that
/// this class does not copy this message, so this reference must be valid for
/// the whole life time of the diagnostic.
DiagnosticInfoOptimizationRemarkAnalysis(const char *PassName,
const Function &Fn,
const DebugLoc &DLoc,
const Twine &Msg)
: DiagnosticInfoOptimizationBase(DK_OptimizationRemarkAnalysis, DS_Remark,
PassName, Fn, DLoc, Msg) {}
static bool classof(const DiagnosticInfo *DI) {
return DI->getKind() == DK_OptimizationRemarkAnalysis;
}
/// \see DiagnosticInfoOptimizationBase::isEnabled.
bool isEnabled() const override;
};
// Create wrappers for C Binding types (see CBindingWrapping.h).
DEFINE_SIMPLE_CONVERSION_FUNCTIONS(DiagnosticInfo, LLVMDiagnosticInfoRef)
/// Emit an optimization-applied message. \p PassName is the name of the pass
/// emitting the message. If -Rpass= is given and \p PassName matches the
/// regular expression in -Rpass, then the remark will be emitted. \p Fn is
/// the function triggering the remark, \p DLoc is the debug location where
/// the diagnostic is generated. \p Msg is the message string to use.
void emitOptimizationRemark(LLVMContext &Ctx, const char *PassName,
const Function &Fn, const DebugLoc &DLoc,
const Twine &Msg);
/// Emit an optimization-missed message. \p PassName is the name of the
/// pass emitting the message. If -Rpass-missed= is given and \p PassName
/// matches the regular expression in -Rpass, then the remark will be
/// emitted. \p Fn is the function triggering the remark, \p DLoc is the
/// debug location where the diagnostic is generated. \p Msg is the
/// message string to use.
void emitOptimizationRemarkMissed(LLVMContext &Ctx, const char *PassName,
const Function &Fn, const DebugLoc &DLoc,
const Twine &Msg);
/// Emit an optimization analysis remark message. \p PassName is the name of
/// the pass emitting the message. If -Rpass-analysis= is given and \p
/// PassName matches the regular expression in -Rpass, then the remark will be
/// emitted. \p Fn is the function triggering the remark, \p DLoc is the debug
/// location where the diagnostic is generated. \p Msg is the message string
/// to use.
void emitOptimizationRemarkAnalysis(LLVMContext &Ctx, const char *PassName,
const Function &Fn, const DebugLoc &DLoc,
const Twine &Msg);
/// Diagnostic information for optimization failures.
class DiagnosticInfoOptimizationFailure
: public DiagnosticInfoOptimizationBase {
public:
/// \p Fn is the function where the diagnostic is being emitted. \p DLoc is
/// the location information to use in the diagnostic. If line table
/// information is available, the diagnostic will include the source code
/// location. \p Msg is the message to show. Note that this class does not
/// copy this message, so this reference must be valid for the whole life time
/// of the diagnostic.
DiagnosticInfoOptimizationFailure(const Function &Fn, const DebugLoc &DLoc,
const Twine &Msg)
: DiagnosticInfoOptimizationBase(DK_OptimizationFailure, DS_Warning,
nullptr, Fn, DLoc, Msg) {}
static bool classof(const DiagnosticInfo *DI) {
return DI->getKind() == DK_OptimizationFailure;
}
/// \see DiagnosticInfoOptimizationBase::isEnabled.
bool isEnabled() const override;
};
/// Emit a warning when loop vectorization is specified but fails. \p Fn is the
/// function triggering the warning, \p DLoc is the debug location where the
/// diagnostic is generated. \p Msg is the message string to use.
void emitLoopVectorizeWarning(LLVMContext &Ctx, const Function &Fn,
const DebugLoc &DLoc, const Twine &Msg);
/// Emit a warning when loop interleaving is specified but fails. \p Fn is the
/// function triggering the warning, \p DLoc is the debug location where the
/// diagnostic is generated. \p Msg is the message string to use.
void emitLoopInterleaveWarning(LLVMContext &Ctx, const Function &Fn,
const DebugLoc &DLoc, const Twine &Msg);
} // End namespace llvm
#endif