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99d6486f4b
Move the profiler setup logic into an RAII object and use it to set up profiling for contructors, destructors, and methods. Swift SVN r25473
83 lines
2.4 KiB
C++
83 lines
2.4 KiB
C++
//===--- SILGenProfiling.h - Instrumentation based profiling ----*- C++ -*-===//
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//
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// This source file is part of the Swift.org open source project
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//
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// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
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// Licensed under Apache License v2.0 with Runtime Library Exception
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//
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// See http://swift.org/LICENSE.txt for license information
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// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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//
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//===----------------------------------------------------------------------===//
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#ifndef SWIFT_SILGEN_PROFILING_H
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#define SWIFT_SILGEN_PROFILING_H
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#include "llvm/ADT/DenseMap.h"
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#include "swift/AST/ASTNode.h"
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#include "swift/AST/Stmt.h"
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#include "swift/SIL/SILBuilder.h"
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namespace llvm {
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using swift::ASTNode;
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template <> struct DenseMapInfo<ASTNode> {
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static inline ASTNode getEmptyKey() {
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return DenseMapInfo<swift::Expr *>::getEmptyKey();
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}
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static inline ASTNode getTombstoneKey() {
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return DenseMapInfo<swift::Expr *>::getTombstoneKey();
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}
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static unsigned getHashValue(const ASTNode Val) {
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return DenseMapInfo<void *>::getHashValue(Val.getOpaqueValue());
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}
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static bool isEqual(const ASTNode LHS, const ASTNode RHS) {
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return LHS.getOpaqueValue() == RHS.getOpaqueValue();
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}
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};
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}
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namespace swift {
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namespace Lowering {
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class SILGenModule;
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/// RAII object to set up profiling for a function.
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struct ProfilerRAII {
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SILGenModule &SGM;
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ProfilerRAII(SILGenModule &SGM, AbstractFunctionDecl *D);
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~ProfilerRAII();
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};
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/// Profiling state.
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class SILGenProfiling {
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private:
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SILGenModule &SGM;
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bool EmitCoverageMapping;
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// The current function's name and counter data.
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std::string CurrentFuncName;
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unsigned NumRegionCounters;
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uint64_t FunctionHash;
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llvm::DenseMap<ASTNode, unsigned> RegionCounterMap;
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std::vector<std::tuple<std::string, uint64_t, std::string>> CoverageData;
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public:
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SILGenProfiling(SILGenModule &SGM, bool EmitCoverageMapping)
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: SGM(SGM), EmitCoverageMapping(EmitCoverageMapping),
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NumRegionCounters(0), FunctionHash(0) {}
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bool hasRegionCounters() const { return NumRegionCounters != 0; }
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/// Map counters to ASTNodes and set them up for profiling the given function.
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void assignRegionCounters(AbstractFunctionDecl *Root);
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/// Emit SIL to increment the counter for \c Node.
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void emitCounterIncrement(SILBuilder &Builder, ASTNode Node);
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};
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} // end namespace Lowering
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} // end namespace swift
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#endif // SWIFT_SILGEN_PROFILING
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