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Use zero-initialization instead of memset.

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llvm-svn: 295119
This commit is contained in:
Rui Ueyama 2017-02-14 23:28:01 +00:00
parent 8c10b49e39
commit 2e6de99b22
1 changed files with 5 additions and 18 deletions
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23
lib/MC/WinCOFFObjectWriter.cpp
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@ -72,7 +72,7 @@ class COFFSection;
class COFFSymbol {
public:
COFF::symbol Data;
COFF::symbol Data = {};
typedef SmallVector<AuxSymbol, 1> AuxiliarySymbols;
@ -84,7 +84,7 @@ public:
int Relocations = 0;
const MCSymbol *MC = nullptr;
COFFSymbol(StringRef name);
COFFSymbol(StringRef Name) : Name(Name) {}
void set_name_offset(uint32_t Offset);
@ -110,7 +110,7 @@ typedef std::vector<COFFRelocation> relocations;
class COFFSection {
public:
COFF::section Header;
COFF::section Header = {};
std::string Name;
int Number;
@ -118,7 +118,7 @@ public:
COFFSymbol *Symbol = nullptr;
relocations Relocations;
COFFSection(StringRef name);
COFFSection(StringRef Name) : Name(Name) {}
};
class WinCOFFObjectWriter : public MCObjectWriter {
@ -132,7 +132,7 @@ public:
std::unique_ptr<MCWinCOFFObjectTargetWriter> TargetObjectWriter;
// Root level file contents.
COFF::header Header;
COFF::header Header = {};
sections Sections;
symbols Symbols;
StringTableBuilder Strings{StringTableBuilder::WinCOFF};
@ -212,10 +212,6 @@ static inline void write_uint32_le(void *Data, uint32_t Value) {
//------------------------------------------------------------------------------
// Symbol class implementation
COFFSymbol::COFFSymbol(StringRef name) : Name(name.begin(), name.end()) {
memset(&Data, 0, sizeof(Data));
}
// In the case that the name does not fit within 8 bytes, the offset
// into the string table is stored in the last 4 bytes instead, leaving
// the first 4 bytes as 0.
@ -224,21 +220,12 @@ void COFFSymbol::set_name_offset(uint32_t Offset) {
write_uint32_le(Data.Name + 4, Offset);
}
//------------------------------------------------------------------------------
// Section class implementation
COFFSection::COFFSection(StringRef name) : Name(name) {
memset(&Header, 0, sizeof(Header));
}
//------------------------------------------------------------------------------
// WinCOFFObjectWriter class implementation
WinCOFFObjectWriter::WinCOFFObjectWriter(MCWinCOFFObjectTargetWriter *MOTW,
raw_pwrite_stream &OS)
: MCObjectWriter(OS, true), TargetObjectWriter(MOTW) {
memset(&Header, 0, sizeof(Header));
Header.Machine = TargetObjectWriter->getMachine();
}