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[C++11] More 'nullptr' conversion. In some cases just using a boolean check instead of comparing to nullptr.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206252 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper
2014-04-15 06:32:26 +00:00
parent eb19b8f58b
commit 0b6cb7104b
73 changed files with 461 additions and 456 deletions
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24
lib/DebugInfo/DWARFUnit.cpp
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@ -98,7 +98,7 @@ void DWARFUnit::clear() {
Offset = 0;
Length = 0;
Version = 0;
Abbrevs = 0;
Abbrevs = nullptr;
AddrSize = 0;
BaseAddr = 0;
RangeSectionBase = 0;
@ -110,8 +110,8 @@ void DWARFUnit::clear() {
const char *DWARFUnit::getCompilationDir() {
extractDIEsIfNeeded(true);
if (DieArray.empty())
return 0;
return DieArray[0].getAttributeValueAsString(this, DW_AT_comp_dir, 0);
return nullptr;
return DieArray[0].getAttributeValueAsString(this, DW_AT_comp_dir, nullptr);
}
uint64_t DWARFUnit::getDWOId() {
@ -241,25 +241,25 @@ size_t DWARFUnit::extractDIEsIfNeeded(bool CUDieOnly) {
DWARFUnit::DWOHolder::DWOHolder(object::ObjectFile *DWOFile)
: DWOFile(DWOFile),
DWOContext(cast<DWARFContext>(DIContext::getDWARFContext(DWOFile))),
DWOU(0) {
DWOU(nullptr) {
if (DWOContext->getNumDWOCompileUnits() > 0)
DWOU = DWOContext->getDWOCompileUnitAtIndex(0);
}
bool DWARFUnit::parseDWO() {
if (DWO.get() != 0)
if (DWO.get())
return false;
extractDIEsIfNeeded(true);
if (DieArray.empty())
return false;
const char *DWOFileName =
DieArray[0].getAttributeValueAsString(this, DW_AT_GNU_dwo_name, 0);
if (DWOFileName == 0)
DieArray[0].getAttributeValueAsString(this, DW_AT_GNU_dwo_name, nullptr);
if (!DWOFileName)
return false;
const char *CompilationDir =
DieArray[0].getAttributeValueAsString(this, DW_AT_comp_dir, 0);
DieArray[0].getAttributeValueAsString(this, DW_AT_comp_dir, nullptr);
SmallString<16> AbsolutePath;
if (sys::path::is_relative(DWOFileName) && CompilationDir != 0) {
if (sys::path::is_relative(DWOFileName) && CompilationDir != nullptr) {
sys::path::append(AbsolutePath, CompilationDir);
}
sys::path::append(AbsolutePath, DWOFileName);
@ -271,7 +271,7 @@ bool DWARFUnit::parseDWO() {
DWO.reset(new DWOHolder(DWOFile.get()));
DWARFUnit *DWOCU = DWO->getUnit();
// Verify that compile unit in .dwo file is valid.
if (DWOCU == 0 || DWOCU->getDWOId() != getDWOId()) {
if (!DWOCU || DWOCU->getDWOId() != getDWOId()) {
DWO.reset();
return false;
}
@ -337,14 +337,14 @@ DWARFUnit::getSubprogramForAddress(uint64_t Address) {
return &DIE;
}
}
return 0;
return nullptr;
}
DWARFDebugInfoEntryInlinedChain
DWARFUnit::getInlinedChainForAddress(uint64_t Address) {
// First, find a subprogram that contains the given address (the root
// of inlined chain).
const DWARFUnit *ChainCU = 0;
const DWARFUnit *ChainCU = nullptr;
const DWARFDebugInfoEntryMinimal *SubprogramDIE =
getSubprogramForAddress(Address);
if (SubprogramDIE) {