[compiler-rt] 513d9b9 - [libfuzzer] avoid unneccessary copy
Florian Mayer via llvm-commits
llvm-commits at lists.llvm.org
Thu Mar 9 22:11:58 PST 2023
Author: Wu, Yingcong
Date: 2023-03-09T22:11:48-08:00
New Revision: 513d9b9f3d67730f8c1485039955a479b4be9c48
URL: https://github.com/llvm/llvm-project/commit/513d9b9f3d67730f8c1485039955a479b4be9c48
DIFF: https://github.com/llvm/llvm-project/commit/513d9b9f3d67730f8c1485039955a479b4be9c48.diff
LOG: [libfuzzer] avoid unneccessary copy
Avoid some unneccessary copy
Reviewed By: fmayer
Differential Revision: https://reviews.llvm.org/D145758
Added:
Modified:
compiler-rt/lib/fuzzer/FuzzerCommand.h
compiler-rt/lib/fuzzer/FuzzerDataFlowTrace.cpp
compiler-rt/lib/fuzzer/FuzzerInternal.h
compiler-rt/lib/fuzzer/FuzzerLoop.cpp
compiler-rt/lib/fuzzer/FuzzerMutate.cpp
Removed:
################################################################################
diff --git a/compiler-rt/lib/fuzzer/FuzzerCommand.h b/compiler-rt/lib/fuzzer/FuzzerCommand.h
index f653fe3587681..eb68be9a65b69 100644
--- a/compiler-rt/lib/fuzzer/FuzzerCommand.h
+++ b/compiler-rt/lib/fuzzer/FuzzerCommand.h
@@ -139,7 +139,7 @@ class Command final {
// be the equivalent command line.
std::string toString() const {
std::stringstream SS;
- for (auto arg : getArguments())
+ for (const auto &arg : getArguments())
SS << arg << " ";
if (hasOutputFile())
SS << ">" << getOutputFile() << " ";
diff --git a/compiler-rt/lib/fuzzer/FuzzerDataFlowTrace.cpp b/compiler-rt/lib/fuzzer/FuzzerDataFlowTrace.cpp
index 2f9a4d2d7adcb..93bf817a857b4 100644
--- a/compiler-rt/lib/fuzzer/FuzzerDataFlowTrace.cpp
+++ b/compiler-rt/lib/fuzzer/FuzzerDataFlowTrace.cpp
@@ -88,7 +88,7 @@ bool BlockCoverage::AppendCoverage(std::istream &IN) {
// * a function with a less frequently executed code gets bigger weight.
std::vector<double> BlockCoverage::FunctionWeights(size_t NumFunctions) const {
std::vector<double> Res(NumFunctions);
- for (auto It : Functions) {
+ for (const auto &It : Functions) {
auto FunctionID = It.first;
auto Counters = It.second;
assert(FunctionID < NumFunctions);
diff --git a/compiler-rt/lib/fuzzer/FuzzerInternal.h b/compiler-rt/lib/fuzzer/FuzzerInternal.h
index 4194bc621341f..e32ee37d4c28f 100644
--- a/compiler-rt/lib/fuzzer/FuzzerInternal.h
+++ b/compiler-rt/lib/fuzzer/FuzzerInternal.h
@@ -31,9 +31,8 @@ using namespace std::chrono;
class Fuzzer final {
public:
-
Fuzzer(UserCallback CB, InputCorpus &Corpus, MutationDispatcher &MD,
- FuzzingOptions Options);
+ FuzzingOptions &Options);
~Fuzzer() = delete;
void Loop(std::vector<SizedFile> &CorporaFiles);
void ReadAndExecuteSeedCorpora(std::vector<SizedFile> &CorporaFiles);
diff --git a/compiler-rt/lib/fuzzer/FuzzerLoop.cpp b/compiler-rt/lib/fuzzer/FuzzerLoop.cpp
index 121f781c31a5f..8b430c5428d88 100644
--- a/compiler-rt/lib/fuzzer/FuzzerLoop.cpp
+++ b/compiler-rt/lib/fuzzer/FuzzerLoop.cpp
@@ -136,7 +136,7 @@ void Fuzzer::HandleMalloc(size_t Size) {
}
Fuzzer::Fuzzer(UserCallback CB, InputCorpus &Corpus, MutationDispatcher &MD,
- FuzzingOptions Options)
+ const FuzzingOptions &Options)
: CB(CB), Corpus(Corpus), MD(MD), Options(Options) {
if (EF->__sanitizer_set_death_callback)
EF->__sanitizer_set_death_callback(StaticDeathCallback);
diff --git a/compiler-rt/lib/fuzzer/FuzzerMutate.cpp b/compiler-rt/lib/fuzzer/FuzzerMutate.cpp
index d663900fdc3a1..1abce16d70d94 100644
--- a/compiler-rt/lib/fuzzer/FuzzerMutate.cpp
+++ b/compiler-rt/lib/fuzzer/FuzzerMutate.cpp
@@ -521,7 +521,7 @@ void MutationDispatcher::PrintMutationSequence(bool Verbose) {
std::string MutationDispatcher::MutationSequence() {
std::string MS;
- for (auto M : CurrentMutatorSequence) {
+ for (const auto &M : CurrentMutatorSequence) {
MS += M.Name;
MS += "-";
}
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