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Revert "Output optimization remarks in YAML"

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This reverts commit r282499.

The GCC bots are failing

llvm-svn: 282503
This commit is contained in:
Adam Nemet 2016-09-27 16:39:24 +00:00
parent a5137ef9a9
commit 5058aadaf2
10 changed files with 10 additions and 331 deletions
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17
include/llvm/Analysis/OptimizationDiagnosticInfo.h
View File

@ -17,7 +17,6 @@
#include "llvm/ADT/Optional.h"
#include "llvm/Analysis/BlockFrequencyInfo.h"
#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/IR/PassManager.h"
#include "llvm/Pass.h"
@ -63,9 +62,6 @@ public:
return *this;
}
/// The new interface to emit remarks.
void emit(DiagnosticInfoOptimizationBase &OptDiag);
/// Emit an optimization-applied message.
///
/// \p PassName is the name of the pass emitting the message. If -Rpass= is
@ -202,13 +198,8 @@ private:
/// If we generate BFI on demand, we need to free it when ORE is freed.
std::unique_ptr<BlockFrequencyInfo> OwnedBFI;
/// Compute hotness from IR value (currently assumed to be a block) if PGO is
/// available.
Optional<uint64_t> computeHotness(const Value *V);
/// Similar but use value from \p OptDiag and update hotness there.
void computeHotness(DiagnosticInfoOptimizationBase &OptDiag);
/// \brief Only allow verbose messages if we know we're filtering by hotness
/// (BFI is only set in this case).
bool shouldEmitVerbose() { return BFI != nullptr; }
@ -217,14 +208,6 @@ private:
void operator=(const OptimizationRemarkEmitter &) = delete;
};
/// \brief Add a small namespace to avoid name clashes with the classes used in
/// the streaming interface. We want these to be short for better
/// write/readability.
namespace ore {
using NV = DiagnosticInfoOptimizationBase::Argument;
using setIsVerbose = DiagnosticInfoOptimizationBase::setIsVerbose;
}
/// OptimizationRemarkEmitter legacy analysis pass
///
/// Note that this pass shouldn't generally be marked as preserved by other

74
include/llvm/IR/DiagnosticInfo.h
View File

@ -17,12 +17,10 @@
#include "llvm-c/Types.h"
#include "llvm/ADT/Optional.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/ADT/Twine.h"
#include "llvm/IR/DebugLoc.h"
#include "llvm/Support/CBindingWrapping.h"
#include "llvm/Support/YAMLTraits.h"
#include <functional>
#include <string>
@ -377,38 +375,6 @@ private:
/// Common features for diagnostics dealing with optimization remarks.
class DiagnosticInfoOptimizationBase : public DiagnosticInfoWithDebugLocBase {
public:
/// \brief Used to set IsVerbose via the stream interface.
struct setIsVerbose {};
/// \brief Used in the streaming interface as the general argument type. It
/// internally converts everything into a key-value pair.
struct Argument {
StringRef Key;
std::string Val;
explicit Argument(StringRef Str = "") : Key("String"), Val(Str) {}
explicit Argument(StringRef Key, Value *V) : Key(Key), Val(V->getName()) {}
explicit Argument(StringRef Key, int N)
: Key(Key), Val(std::to_string(N)) {}
};
/// \p PassName is the name of the pass emitting this diagnostic. \p
/// RemarkName is a textual identifier for the remark. \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 CodeRegion is IR
/// value (currently basic block) that the optimization operates on. This is
/// currently used to provide run-time hotness information with PGO.
DiagnosticInfoOptimizationBase(enum DiagnosticKind Kind,
enum DiagnosticSeverity Severity,
const char *PassName, StringRef RemarkName,
const Function &Fn, const DebugLoc &DLoc,
Value *CodeRegion = nullptr)
: DiagnosticInfoWithDebugLocBase(Kind, Severity, Fn, DLoc),
PassName(PassName), RemarkName(RemarkName), CodeRegion(CodeRegion),
IsVerbose(false) {}
/// Legacy interface.
/// \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
@ -422,13 +388,7 @@ public:
const DebugLoc &DLoc, const Twine &Msg,
Optional<uint64_t> Hotness = None)
: DiagnosticInfoWithDebugLocBase(Kind, Severity, Fn, DLoc),
PassName(PassName), Hotness(Hotness), IsVerbose(false) {
Args.push_back(Argument(Msg.str()));
}
DiagnosticInfoOptimizationBase &operator<<(StringRef S);
DiagnosticInfoOptimizationBase &operator<<(Argument A);
DiagnosticInfoOptimizationBase &operator<<(setIsVerbose V);
PassName(PassName), Msg(Msg), Hotness(Hotness) {}
/// \see DiagnosticInfo::print.
void print(DiagnosticPrinter &DP) const override;
@ -441,13 +401,8 @@ public:
virtual bool isEnabled() const = 0;
const char *getPassName() const { return PassName; }
std::string getMsg() const;
const Twine &getMsg() const { return Msg; }
Optional<uint64_t> getHotness() const { return Hotness; }
void setHotness(Optional<uint64_t> H) { Hotness = H; }
Value *getCodeRegion() const { return CodeRegion; }
bool isVerbose() const { return IsVerbose; }
static bool classof(const DiagnosticInfo *DI) {
return DI->getKind() >= DK_FirstRemark &&
@ -460,25 +415,12 @@ private:
/// be emitted.
const char *PassName;
/// Textual identifier for the remark. Can be used by external tools reading
/// the YAML output file for optimization remarks to identify the remark.
StringRef RemarkName;
/// Message to report.
const Twine &Msg;
/// If profile information is available, this is the number of times the
/// corresponding code was executed in a profile instrumentation run.
Optional<uint64_t> Hotness;
/// The IR value (currently basic block) that the optimization operates on.
/// This is currently used to provide run-time hotness information with PGO.
Value *CodeRegion;
/// Arguments collected via the streaming interface.
SmallVector<Argument, 4> Args;
/// The remark is expected to be noisy.
bool IsVerbose;
friend struct yaml::MappingTraits<DiagnosticInfoOptimizationBase *>;
};
/// Diagnostic information for applied optimization remarks.
@ -525,14 +467,6 @@ public:
: DiagnosticInfoOptimizationBase(DK_OptimizationRemarkMissed, DS_Remark,
PassName, Fn, DLoc, Msg, Hotness) {}
/// \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 RemarkName is a textual identifier for the
/// remark. \p Inst is the instruction that the optimization operates on.
DiagnosticInfoOptimizationRemarkMissed(const char *PassName,
StringRef RemarkName,
Instruction *Inst);
static bool classof(const DiagnosticInfo *DI) {
return DI->getKind() == DK_OptimizationRemarkMissed;
}

14
include/llvm/IR/LLVMContext.h
View File

@ -34,9 +34,6 @@ template <typename T> class SmallVectorImpl;
class Function;
class DebugLoc;
class OptBisect;
namespace yaml {
class Output;
}
/// This is an important class for using LLVM in a threaded context. It
/// (opaquely) owns and manages the core "global" data of LLVM's core
@ -184,17 +181,6 @@ public:
/// diagnostics.
void setDiagnosticHotnessRequested(bool Requested);
/// \brief Return the YAML file used by the backend to save optimization
/// diagnostics. If null, diagnostics are not saved in a file but only
/// emitted via the diagnostic handler.
yaml::Output *getDiagnosticsOutputFile();
/// Set the diagnostics output file used for optimization diagnostics.
///
/// By default or if invoked with null, diagnostics are not saved in a file
/// but only emitted via the diagnostic handler. Even if an output file is
/// set, the handler is invoked for each diagnostic message.
void setDiagnosticsOutputFile(yaml::Output *F);
/// \brief Get the prefix that should be printed in front of a diagnostic of
/// the given \p Severity
static const char *getDiagnosticMessagePrefix(DiagnosticSeverity Severity);

80
lib/Analysis/OptimizationDiagnosticInfo.cpp
View File

@ -16,7 +16,6 @@
#include "llvm/Analysis/BranchProbabilityInfo.h"
#include "llvm/Analysis/LazyBlockFrequencyInfo.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/IR/DebugInfo.h"
#include "llvm/IR/DiagnosticInfo.h"
#include "llvm/IR/Dominators.h"
#include "llvm/IR/LLVMContext.h"
@ -52,85 +51,6 @@ Optional<uint64_t> OptimizationRemarkEmitter::computeHotness(const Value *V) {
return BFI->getBlockProfileCount(cast<BasicBlock>(V));
}
template <> struct yaml::MappingTraits<DiagnosticInfoOptimizationBase *> {
static void mapping(IO &io, DiagnosticInfoOptimizationBase *&OptDiag) {
assert(io.outputting() && "input not yet implemented");
if (io.mapTag("!Missed", OptDiag->getKind() == DK_OptimizationRemarkMissed))
;
else
llvm_unreachable("todo");
// These are read-only for now.
DebugLoc DL = OptDiag->getDebugLoc();
StringRef FN = OptDiag->getFunction().getName();
StringRef PassName(OptDiag->PassName);
io.mapRequired("Pass", PassName);
io.mapRequired("Name", OptDiag->RemarkName);
if (!io.outputting() || DL)
io.mapOptional("DebugLoc", DL);
io.mapRequired("Function", FN);
io.mapOptional("Hotness", OptDiag->Hotness);
io.mapOptional("Args", OptDiag->Args);
}
};
template <> struct yaml::MappingTraits<DebugLoc> {
static void mapping(IO &io, DebugLoc &DL) {
assert(io.outputting() && "input not yet implemented");
auto *Scope = cast<DIScope>(DL.getScope());
StringRef File = Scope->getFilename();
unsigned Line = DL.getLine();
unsigned Col = DL.getCol();
io.mapRequired("File", File);
io.mapRequired("Line", Line);
io.mapRequired("Column", Col);
}
static const bool flow = true;
};
template <>
struct yaml::ScalarTraits<DiagnosticInfoOptimizationBase::Argument> {
static void output(const DiagnosticInfoOptimizationBase::Argument &Arg,
void *, llvm::raw_ostream &out) {
out << Arg.Key << ": " << Arg.Val;
}
static StringRef input(StringRef scalar, void *,
DiagnosticInfoOptimizationBase::Argument &Arg) {
llvm_unreachable("input not yet implemented");
}
static bool mustQuote(StringRef) { return false; }
};
LLVM_YAML_IS_SEQUENCE_VECTOR(DiagnosticInfoOptimizationBase::Argument)
void OptimizationRemarkEmitter::computeHotness(
DiagnosticInfoOptimizationBase &OptDiag) {
Value *V = OptDiag.getCodeRegion();
if (V)
OptDiag.setHotness(computeHotness(V));
}
void OptimizationRemarkEmitter::emit(DiagnosticInfoOptimizationBase &OptDiag) {
computeHotness(OptDiag);
yaml::Output *Out = F->getContext().getDiagnosticsOutputFile();
if (Out && OptDiag.isEnabled()) {
auto *P = &const_cast<DiagnosticInfoOptimizationBase &>(OptDiag);
*Out << P;
}
// FIXME: now that IsVerbose is part of DI, filtering for this will be moved
// from here to clang.
if (!OptDiag.isVerbose() || shouldEmitVerbose())
F->getContext().diagnose(OptDiag);
}
void OptimizationRemarkEmitter::emitOptimizationRemark(const char *PassName,
const DebugLoc &DLoc,
const Value *V,

33
lib/IR/DiagnosticInfo.cpp
View File

@ -181,13 +181,6 @@ bool DiagnosticInfoOptimizationRemark::isEnabled() const {
PassRemarksOptLoc.Pattern->match(getPassName());
}
DiagnosticInfoOptimizationRemarkMissed::DiagnosticInfoOptimizationRemarkMissed(
const char *PassName, StringRef RemarkName, Instruction *Inst)
: DiagnosticInfoOptimizationBase(DK_OptimizationRemarkMissed, DS_Remark,
PassName, RemarkName,
*Inst->getParent()->getParent(),
Inst->getDebugLoc(), Inst->getParent()) {}
bool DiagnosticInfoOptimizationRemarkMissed::isEnabled() const {
return PassRemarksMissedOptLoc.Pattern &&
PassRemarksMissedOptLoc.Pattern->match(getPassName());
@ -273,29 +266,3 @@ void llvm::emitLoopInterleaveWarning(LLVMContext &Ctx, const Function &Fn,
void DiagnosticInfoISelFallback::print(DiagnosticPrinter &DP) const {
DP << "Instruction selection used fallback path for " << getFunction();
}
DiagnosticInfoOptimizationBase &DiagnosticInfoOptimizationBase::
operator<<(StringRef S) {
Args.emplace_back(S);
return *this;
}
DiagnosticInfoOptimizationBase &DiagnosticInfoOptimizationBase::
operator<<(Argument A) {
Args.push_back(std::move(A));
return *this;
}
DiagnosticInfoOptimizationBase &DiagnosticInfoOptimizationBase::
operator<<(setIsVerbose V) {
IsVerbose = true;
return *this;
}
std::string DiagnosticInfoOptimizationBase::getMsg() const {
std::string Str;
raw_string_ostream OS(Str);
for (const DiagnosticInfoOptimizationBase::Argument &Arg : Args)
OS << Arg.Val;
return OS.str();
}

8
lib/IR/LLVMContext.cpp
View File

@ -203,14 +203,6 @@ bool LLVMContext::getDiagnosticHotnessRequested() const {
return pImpl->DiagnosticHotnessRequested;
}
yaml::Output *LLVMContext::getDiagnosticsOutputFile() {
return pImpl->DiagnosticsOutputFile.get();
}
void LLVMContext::setDiagnosticsOutputFile(yaml::Output *F) {
pImpl->DiagnosticsOutputFile.reset(F);
}
LLVMContext::DiagnosticHandlerTy LLVMContext::getDiagnosticHandler() const {
return pImpl->DiagnosticHandler;
}

2
lib/IR/LLVMContextImpl.h
View File

@ -33,7 +33,6 @@
#include "llvm/IR/Metadata.h"
#include "llvm/IR/ValueHandle.h"
#include "llvm/Support/Dwarf.h"
#include "llvm/Support/YAMLTraits.h"
#include <vector>
namespace llvm {
@ -1044,7 +1043,6 @@ public:
void *DiagnosticContext;
bool RespectDiagnosticFilters;
bool DiagnosticHotnessRequested;
std::unique_ptr<yaml::Output> DiagnosticsOutputFile;
LLVMContext::YieldCallbackTy YieldCallback;
void *YieldOpaqueHandle;

14
lib/Transforms/IPO/Inliner.cpp
View File

@ -469,15 +469,13 @@ inlineCallsImpl(CallGraphSCC &SCC, CallGraph &CG,
// direct call, so we keep it.
if (Function *Callee = CS.getCalledFunction())
if (Callee->isDeclaration()) {
ORE.emitOptimizationRemarkAnalysis(
DEBUG_TYPE, &I, Twine("definition of ") + Callee->getName() +
" is not available",
ORE.emitOptimizationRemarkMissedAndAnalysis(
DEBUG_TYPE, &I,
Twine(Callee->getName()) + " will not be inlined into " +
CS.getCaller()->getName(),
Twine("definition of ") + Callee->getName() +
" is not available",
/*Verbose=*/true);
using namespace ore;
ORE.emit(DiagnosticInfoOptimizationRemarkMissed(DEBUG_TYPE,
"NotInlined", &I)
<< NV("Callee", Callee) << " will not be inlined into "
<< NV("Caller", CS.getCaller()) << setIsVerbose());
continue;
}

76
test/Transforms/Inline/optimization-remarks-yaml.ll
View File

@ -1,76 +0,0 @@
; RUN: opt < %s -inline -pass-remarks-missed=inline -pass-remarks-with-hotness \
; RUN: -pass-remarks-output=%t 2>&1 | FileCheck %s
; RUN: cat %t | FileCheck -check-prefix=YAML %s
; Check the YAML file generated for inliner remarks for this program:
;
; 1 int foo();
; 2 int bar();
; 3
; 4 int baz() {
; 5 return foo() + bar();
; 6 }
; CHECK: remark: /tmp/s.c:5:10: foo will not be inlined into baz (hotness: 30)
; CHECK-NEXT: remark: /tmp/s.c:5:18: bar will not be inlined into baz (hotness: 30)
; YAML: --- !Missed
; YAML-NEXT: Pass: inline
; YAML-NEXT: Name: NotInlined
; YAML-NEXT: DebugLoc: { File: /tmp/s.c, Line: 5, Column: 10 }
; YAML-NEXT: Function: baz
; YAML-NEXT: Hotness: 30
; YAML-NEXT: Args:
; YAML-NEXT: - Callee: foo
; YAML-NEXT: - String: will not be inlined into
; YAML-NEXT: - Caller: baz
; YAML-NEXT: ...
; YAML-NEXT: --- !Missed
; YAML-NEXT: Pass: inline
; YAML-NEXT: Name: NotInlined
; YAML-NEXT: DebugLoc: { File: /tmp/s.c, Line: 5, Column: 18 }
; YAML-NEXT: Function: baz
; YAML-NEXT: Hotness: 30
; YAML-NEXT: Args:
; YAML-NEXT: - Callee: bar
; YAML-NEXT: - String: will not be inlined into
; YAML-NEXT: - Caller: baz
; YAML-NEXT: ...
; ModuleID = '/tmp/s.c'
source_filename = "/tmp/s.c"
target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-apple-macosx10.11.0"
; Function Attrs: nounwind ssp uwtable
define i32 @baz() !dbg !7 !prof !14 {
entry:
%call = call i32 (...) @foo(), !dbg !9
%call1 = call i32 (...) @bar(), !dbg !10
%add = add nsw i32 %call, %call1, !dbg !12
ret i32 %add, !dbg !13
}
declare i32 @foo(...)
declare i32 @bar(...)
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!3, !4, !5}
!llvm.ident = !{!6}
!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 4.0.0 (trunk 281293) (llvm/trunk 281290)", isOptimized: true, runtimeVersion: 0, emissionKind: LineTablesOnly, enums: !2)
!1 = !DIFile(filename: "/tmp/s.c", directory: "/tmp")
!2 = !{}
!3 = !{i32 2, !"Dwarf Version", i32 4}
!4 = !{i32 2, !"Debug Info Version", i32 3}
!5 = !{i32 1, !"PIC Level", i32 2}
!6 = !{!"clang version 4.0.0 (trunk 281293) (llvm/trunk 281290)"}
!7 = distinct !DISubprogram(name: "baz", scope: !1, file: !1, line: 4, type: !8, isLocal: false, isDefinition: true, scopeLine: 4, isOptimized: true, unit: !0, variables: !2)
!8 = !DISubroutineType(types: !2)
!9 = !DILocation(line: 5, column: 10, scope: !7)
!10 = !DILocation(line: 5, column: 18, scope: !11)
!11 = !DILexicalBlockFile(scope: !7, file: !1, discriminator: 1)
!12 = !DILocation(line: 5, column: 16, scope: !7)
!13 = !DILocation(line: 5, column: 3, scope: !7)
!14 = !{!"function_entry_count", i64 30}

23
tools/opt/opt.cpp
View File

@ -49,7 +49,6 @@
#include "llvm/Support/TargetRegistry.h"
#include "llvm/Support/TargetSelect.h"
#include "llvm/Support/ToolOutputFile.h"
#include "llvm/Support/YAMLTraits.h"
#include "llvm/Target/TargetMachine.h"
#include "llvm/Transforms/Coroutines.h"
#include "llvm/Transforms/IPO/AlwaysInliner.h"
@ -232,11 +231,6 @@ static cl::opt<bool> PassRemarksWithHotness(
cl::desc("With PGO, include profile count in optimization remarks"),
cl::Hidden);
static cl::opt<std::string>
RemarksFilename("pass-remarks-output",
cl::desc("YAML output filename for pass remarks"),
cl::value_desc("filename"));
static inline void addPass(legacy::PassManagerBase &PM, Pass *P) {
// Add the pass to the pass manager...
PM.add(P);
@ -414,18 +408,6 @@ int main(int argc, char **argv) {
if (PassRemarksWithHotness)
Context.setDiagnosticHotnessRequested(true);
std::unique_ptr<tool_output_file> YamlFile;
if (RemarksFilename != "") {
std::error_code EC;
YamlFile = llvm::make_unique<tool_output_file>(RemarksFilename, EC,
sys::fs::F_None);
if (EC) {
errs() << EC.message() << '\n';
return 1;
}
Context.setDiagnosticsOutputFile(new yaml::Output(YamlFile->os()));
}
// Load the input module...
std::unique_ptr<Module> M = parseIRFile(InputFilename, Err, Context);
@ -734,8 +716,6 @@ int main(int argc, char **argv) {
"the compile-twice option\n";
Out->os() << BOS->str();
Out->keep();
if (YamlFile)
YamlFile->keep();
return 1;
}
Out->os() << BOS->str();
@ -745,8 +725,5 @@ int main(int argc, char **argv) {
if (!NoOutput || PrintBreakpoints)
Out->keep();
if (YamlFile)
YamlFile->keep();
return 0;
}