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Diffstat (limited to 'contrib/llvm/lib/IR/DiagnosticInfo.cpp')
-rw-r--r-- | contrib/llvm/lib/IR/DiagnosticInfo.cpp | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/contrib/llvm/lib/IR/DiagnosticInfo.cpp b/contrib/llvm/lib/IR/DiagnosticInfo.cpp new file mode 100644 index 0000000..37cce2b --- /dev/null +++ b/contrib/llvm/lib/IR/DiagnosticInfo.cpp @@ -0,0 +1,208 @@ +//===- llvm/Support/DiagnosticInfo.cpp - Diagnostic Definitions -*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// +// +// This file defines the different classes involved in low level diagnostics. +// +// Diagnostics reporting is still done as part of the LLVMContext. +//===----------------------------------------------------------------------===// + +#include "LLVMContextImpl.h" +#include "llvm/ADT/Twine.h" +#include "llvm/IR/Constants.h" +#include "llvm/IR/DebugInfo.h" +#include "llvm/IR/DiagnosticInfo.h" +#include "llvm/IR/DiagnosticPrinter.h" +#include "llvm/IR/Function.h" +#include "llvm/IR/Instruction.h" +#include "llvm/IR/Metadata.h" +#include "llvm/IR/Module.h" +#include "llvm/Support/Atomic.h" +#include "llvm/Support/CommandLine.h" +#include "llvm/Support/Regex.h" +#include <string> + +using namespace llvm; + +namespace { + +/// \brief Regular expression corresponding to the value given in one of the +/// -pass-remarks* command line flags. Passes whose name matches this regexp +/// will emit a diagnostic when calling the associated diagnostic function +/// (emitOptimizationRemark, emitOptimizationRemarkMissed or +/// emitOptimizationRemarkAnalysis). +struct PassRemarksOpt { + std::shared_ptr<Regex> Pattern; + + void operator=(const std::string &Val) { + // Create a regexp object to match pass names for emitOptimizationRemark. + if (!Val.empty()) { + Pattern = std::make_shared<Regex>(Val); + std::string RegexError; + if (!Pattern->isValid(RegexError)) + report_fatal_error("Invalid regular expression '" + Val + + "' in -pass-remarks: " + RegexError, + false); + } + }; +}; + +static PassRemarksOpt PassRemarksOptLoc; +static PassRemarksOpt PassRemarksMissedOptLoc; +static PassRemarksOpt PassRemarksAnalysisOptLoc; + +// -pass-remarks +// Command line flag to enable emitOptimizationRemark() +static cl::opt<PassRemarksOpt, true, cl::parser<std::string>> +PassRemarks("pass-remarks", cl::value_desc("pattern"), + cl::desc("Enable optimization remarks from passes whose name match " + "the given regular expression"), + cl::Hidden, cl::location(PassRemarksOptLoc), cl::ValueRequired, + cl::ZeroOrMore); + +// -pass-remarks-missed +// Command line flag to enable emitOptimizationRemarkMissed() +static cl::opt<PassRemarksOpt, true, cl::parser<std::string>> PassRemarksMissed( + "pass-remarks-missed", cl::value_desc("pattern"), + cl::desc("Enable missed optimization remarks from passes whose name match " + "the given regular expression"), + cl::Hidden, cl::location(PassRemarksMissedOptLoc), cl::ValueRequired, + cl::ZeroOrMore); + +// -pass-remarks-analysis +// Command line flag to enable emitOptimizationRemarkAnalysis() +static cl::opt<PassRemarksOpt, true, cl::parser<std::string>> +PassRemarksAnalysis( + "pass-remarks-analysis", cl::value_desc("pattern"), + cl::desc( + "Enable optimization analysis remarks from passes whose name match " + "the given regular expression"), + cl::Hidden, cl::location(PassRemarksAnalysisOptLoc), cl::ValueRequired, + cl::ZeroOrMore); +} + +int llvm::getNextAvailablePluginDiagnosticKind() { + static sys::cas_flag PluginKindID = DK_FirstPluginKind; + return (int)sys::AtomicIncrement(&PluginKindID); +} + +DiagnosticInfoInlineAsm::DiagnosticInfoInlineAsm(const Instruction &I, + const Twine &MsgStr, + DiagnosticSeverity Severity) + : DiagnosticInfo(DK_InlineAsm, Severity), LocCookie(0), MsgStr(MsgStr), + Instr(&I) { + if (const MDNode *SrcLoc = I.getMetadata("srcloc")) { + if (SrcLoc->getNumOperands() != 0) + if (const ConstantInt *CI = dyn_cast<ConstantInt>(SrcLoc->getOperand(0))) + LocCookie = CI->getZExtValue(); + } +} + +void DiagnosticInfoInlineAsm::print(DiagnosticPrinter &DP) const { + DP << getMsgStr(); + if (getLocCookie()) + DP << " at line " << getLocCookie(); +} + +void DiagnosticInfoStackSize::print(DiagnosticPrinter &DP) const { + DP << "stack size limit exceeded (" << getStackSize() << ") in " + << getFunction(); +} + +void DiagnosticInfoDebugMetadataVersion::print(DiagnosticPrinter &DP) const { + DP << "ignoring debug info with an invalid version (" << getMetadataVersion() + << ") in " << getModule(); +} + +void DiagnosticInfoSampleProfile::print(DiagnosticPrinter &DP) const { + if (getFileName() && getLineNum() > 0) + DP << getFileName() << ":" << getLineNum() << ": "; + else if (getFileName()) + DP << getFileName() << ": "; + DP << getMsg(); +} + +bool DiagnosticInfoOptimizationBase::isLocationAvailable() const { + return getDebugLoc().isUnknown() == false; +} + +void DiagnosticInfoOptimizationBase::getLocation(StringRef *Filename, + unsigned *Line, + unsigned *Column) const { + DILocation DIL(getDebugLoc().getAsMDNode(getFunction().getContext())); + *Filename = DIL.getFilename(); + *Line = DIL.getLineNumber(); + *Column = DIL.getColumnNumber(); +} + +const std::string DiagnosticInfoOptimizationBase::getLocationStr() const { + StringRef Filename("<unknown>"); + unsigned Line = 0; + unsigned Column = 0; + if (isLocationAvailable()) + getLocation(&Filename, &Line, &Column); + return Twine(Filename + ":" + Twine(Line) + ":" + Twine(Column)).str(); +} + +void DiagnosticInfoOptimizationBase::print(DiagnosticPrinter &DP) const { + DP << getLocationStr() << ": " << getMsg(); +} + +bool DiagnosticInfoOptimizationRemark::isEnabled() const { + return PassRemarksOptLoc.Pattern && + PassRemarksOptLoc.Pattern->match(getPassName()); +} + +bool DiagnosticInfoOptimizationRemarkMissed::isEnabled() const { + return PassRemarksMissedOptLoc.Pattern && + PassRemarksMissedOptLoc.Pattern->match(getPassName()); +} + +bool DiagnosticInfoOptimizationRemarkAnalysis::isEnabled() const { + return PassRemarksAnalysisOptLoc.Pattern && + PassRemarksAnalysisOptLoc.Pattern->match(getPassName()); +} + +void llvm::emitOptimizationRemark(LLVMContext &Ctx, const char *PassName, + const Function &Fn, const DebugLoc &DLoc, + const Twine &Msg) { + Ctx.diagnose(DiagnosticInfoOptimizationRemark(PassName, Fn, DLoc, Msg)); +} + +void llvm::emitOptimizationRemarkMissed(LLVMContext &Ctx, const char *PassName, + const Function &Fn, + const DebugLoc &DLoc, + const Twine &Msg) { + Ctx.diagnose(DiagnosticInfoOptimizationRemarkMissed(PassName, Fn, DLoc, Msg)); +} + +void llvm::emitOptimizationRemarkAnalysis(LLVMContext &Ctx, + const char *PassName, + const Function &Fn, + const DebugLoc &DLoc, + const Twine &Msg) { + Ctx.diagnose( + DiagnosticInfoOptimizationRemarkAnalysis(PassName, Fn, DLoc, Msg)); +} + +bool DiagnosticInfoOptimizationFailure::isEnabled() const { + // Only print warnings. + return getSeverity() == DS_Warning; +} + +void llvm::emitLoopVectorizeWarning(LLVMContext &Ctx, const Function &Fn, + const DebugLoc &DLoc, const Twine &Msg) { + Ctx.diagnose(DiagnosticInfoOptimizationFailure( + Fn, DLoc, Twine("loop not vectorized: " + Msg))); +} + +void llvm::emitLoopInterleaveWarning(LLVMContext &Ctx, const Function &Fn, + const DebugLoc &DLoc, const Twine &Msg) { + Ctx.diagnose(DiagnosticInfoOptimizationFailure( + Fn, DLoc, Twine("loop not interleaved: " + Msg))); +} |