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322005d027
If multiple swift files are compiled together, then guessing as to the file when we emit IR obviously doesn't work. Find the filename when we generate a function's coverage map and propagate it through SIL. Swift SVN r25436
97 lines
3.6 KiB
C++
97 lines
3.6 KiB
C++
//===--- SILCoverageMap.cpp - Defines the SILCoverageMap class ------------===//
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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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//
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// This file defines the SILCoverageMap class, which is used to relay coverage
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// mapping information from the AST to lower layers of the compiler.
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//
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//===----------------------------------------------------------------------===//
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#include "swift/SIL/SILCoverageMap.h"
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#include "swift/SIL/SILModule.h"
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using namespace swift;
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using llvm::coverage::CounterExpression;
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SILCoverageMap *
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SILCoverageMap::create(SILModule &M, StringRef Filename, StringRef Name,
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uint64_t Hash, ArrayRef<MappedRegion> MappedRegions,
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ArrayRef<CounterExpression> Expressions) {
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void *Buf = M.allocate(sizeof(SILCoverageMap), alignof(SILCoverageMap));
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SILCoverageMap *CM = ::new (Buf) SILCoverageMap(Hash);
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// Store a copy of the name so that we own the lifetime.
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char *AllocatedName = (char *)M.allocate(Filename.size(), alignof(char));
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memcpy(AllocatedName, Filename.data(), Filename.size());
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CM->Filename = StringRef(AllocatedName, Filename.size());
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AllocatedName = (char *)M.allocate(Name.size(), alignof(char));
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memcpy(AllocatedName, Name.data(), Name.size());
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CM->Name = StringRef(AllocatedName, Name.size());
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// Since we have two arrays, we need to manually tail allocate each of them,
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// rather than relying on the flexible array trick.
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size_t MappedRegionsSize = sizeof(MappedRegion) * MappedRegions.size();
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CM->MappedRegions =
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(MappedRegion *)M.allocate(MappedRegionsSize, alignof(MappedRegion));
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CM->NumMappedRegions = MappedRegions.size();
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memcpy(CM->MappedRegions, MappedRegions.begin(), MappedRegionsSize);
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size_t ExpressionsSize = sizeof(CounterExpression) * Expressions.size();
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CM->Expressions = (CounterExpression *)M.allocate(ExpressionsSize,
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alignof(CounterExpression));
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CM->NumExpressions = Expressions.size();
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memcpy(CM->Expressions, Expressions.begin(), ExpressionsSize);
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M.coverageMaps.push_back(CM);
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return CM;
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}
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SILCoverageMap::SILCoverageMap(uint64_t Hash) : Hash(Hash) {}
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SILCoverageMap::~SILCoverageMap() {}
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namespace {
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struct Printer {
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const llvm::coverage::Counter &C;
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ArrayRef<llvm::coverage::CounterExpression> Exprs;
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Printer(const llvm::coverage::Counter &C,
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ArrayRef<llvm::coverage::CounterExpression> Exprs)
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: C(C), Exprs(Exprs) {}
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void print(raw_ostream &OS) const {
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// TODO: This format's nice and human readable, but does it fit well with
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// SIL's relatively simple structure?
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if (C.isZero())
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OS << "zero";
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else if (C.isExpression()) {
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assert(C.getExpressionID() < Exprs.size() && "expression out of range");
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const auto &E = Exprs[C.getExpressionID()];
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OS << '(' << Printer(E.LHS, Exprs)
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<< (E.Kind == CounterExpression::Add ? " + " : " - ")
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<< Printer(E.RHS, Exprs) << ')';
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} else
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OS << C.getCounterID();
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}
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friend raw_ostream &operator<<(raw_ostream &OS, const Printer &P) {
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P.print(OS);
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return OS;
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}
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};
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}
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void SILCoverageMap::printCounter(llvm::raw_ostream &OS,
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llvm::coverage::Counter C) const {
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OS << Printer(C, getExpressions());
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}
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