[llvm] 28ea50f - [llvm] Populate std::vector at construction time (NFC)

[Kazu Hirata via llvm-commits]

Author: Kazu Hirata
Date: 2021-01-18T10:16:33-08:00
New Revision: 28ea50f524b56e11b608ca1f768d2981579ebe75

URL: https://github.com/llvm/llvm-project/commit/28ea50f524b56e11b608ca1f768d2981579ebe75
DIFF: https://github.com/llvm/llvm-project/commit/28ea50f524b56e11b608ca1f768d2981579ebe75.diff

LOG: [llvm] Populate std::vector at construction time (NFC)

Added: 
    

Modified: 
    llvm/lib/ObjectYAML/DWARFEmitter.cpp
    llvm/lib/ObjectYAML/MachOEmitter.cpp
    llvm/lib/ProfileData/SampleProf.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/ObjectYAML/DWARFEmitter.cpp b/llvm/lib/ObjectYAML/DWARFEmitter.cpp
index 0584ef0aadca..eec733c7d7f9 100644
--- a/llvm/lib/ObjectYAML/DWARFEmitter.cpp
+++ b/llvm/lib/ObjectYAML/DWARFEmitter.cpp
@@ -63,8 +63,7 @@ static Error writeVariableSizedInteger(uint64_t Integer, size_t Size,
 }
 
 static void ZeroFillBytes(raw_ostream &OS, size_t Size) {
-  std::vector<uint8_t> FillData;
-  FillData.insert(FillData.begin(), Size, 0);
+  std::vector<uint8_t> FillData(Size, 0);
   OS.write(reinterpret_cast<char *>(FillData.data()), Size);
 }
 

diff  --git a/llvm/lib/ObjectYAML/MachOEmitter.cpp b/llvm/lib/ObjectYAML/MachOEmitter.cpp
index 9eba391032b9..dec9c9f6960b 100644
--- a/llvm/lib/ObjectYAML/MachOEmitter.cpp
+++ b/llvm/lib/ObjectYAML/MachOEmitter.cpp
@@ -199,14 +199,12 @@ size_t writeLoadCommandData<MachO::build_version_command>(
 }
 
 void ZeroFillBytes(raw_ostream &OS, size_t Size) {
-  std::vector<uint8_t> FillData;
-  FillData.insert(FillData.begin(), Size, 0);
+  std::vector<uint8_t> FillData(Size, 0);
   OS.write(reinterpret_cast<char *>(FillData.data()), Size);
 }
 
 void Fill(raw_ostream &OS, size_t Size, uint32_t Data) {
-  std::vector<uint32_t> FillData;
-  FillData.insert(FillData.begin(), (Size / 4) + 1, Data);
+  std::vector<uint32_t> FillData((Size / 4) + 1, Data);
   OS.write(reinterpret_cast<char *>(FillData.data()), Size);
 }
 

diff  --git a/llvm/lib/ProfileData/SampleProf.cpp b/llvm/lib/ProfileData/SampleProf.cpp
index 809576c57ffc..d6acc00e1a6f 100644
--- a/llvm/lib/ProfileData/SampleProf.cpp
+++ b/llvm/lib/ProfileData/SampleProf.cpp
@@ -287,8 +287,7 @@ std::error_code ProfileSymbolList::read(const uint8_t *Data,
 std::error_code ProfileSymbolList::write(raw_ostream &OS) {
   // Sort the symbols before output. If doing compression.
   // It will make the compression much more effective.
-  std::vector<StringRef> SortedList;
-  SortedList.insert(SortedList.begin(), Syms.begin(), Syms.end());
+  std::vector<StringRef> SortedList(Syms.begin(), Syms.end());
   llvm::sort(SortedList);
 
   std::string OutputString;
@@ -303,8 +302,7 @@ std::error_code ProfileSymbolList::write(raw_ostream &OS) {
 
 void ProfileSymbolList::dump(raw_ostream &OS) const {
   OS << "======== Dump profile symbol list ========\n";
-  std::vector<StringRef> SortedList;
-  SortedList.insert(SortedList.begin(), Syms.begin(), Syms.end());
+  std::vector<StringRef> SortedList(Syms.begin(), Syms.end());
   llvm::sort(SortedList);
 
   for (auto &Sym : SortedList)