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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@206356 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper
2014-04-16 04:21:27 +00:00
parent 73a7844c65
commit 695aa80f07
14 changed files with 59 additions and 50 deletions
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20
lib/CodeGen/InterferenceCache.h
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@ -77,7 +77,8 @@ class InterferenceCache {
/// Iterator pointing into the fixed RegUnit interference.
LiveInterval::iterator FixedI;
RegUnitInfo(LiveIntervalUnion &LIU) : VirtTag(LIU.getTag()), Fixed(0) {
RegUnitInfo(LiveIntervalUnion &LIU)
: VirtTag(LIU.getTag()), Fixed(nullptr) {
VirtI.setMap(LIU.getMap());
}
};
@ -93,7 +94,7 @@ class InterferenceCache {
void update(unsigned MBBNum);
public:
Entry() : PhysReg(0), Tag(0), RefCount(0), Indexes(0), LIS(0) {}
Entry() : PhysReg(0), Tag(0), RefCount(0), Indexes(nullptr), LIS(nullptr) {}
void clear(MachineFunction *mf, SlotIndexes *indexes, LiveIntervals *lis) {
assert(!hasRefs() && "Cannot clear cache entry with references");
@ -148,8 +149,9 @@ class InterferenceCache {
Entry *get(unsigned PhysReg);
public:
InterferenceCache() : TRI(0), LIUArray(0), MF(0), PhysRegEntries(NULL),
PhysRegEntriesCount(0), RoundRobin(0) {}
InterferenceCache()
: TRI(nullptr), LIUArray(nullptr), MF(nullptr), PhysRegEntries(nullptr),
PhysRegEntriesCount(0), RoundRobin(0) {}
~InterferenceCache() {
free(PhysRegEntries);
@ -172,7 +174,7 @@ public:
static BlockInterference NoInterference;
void setEntry(Entry *E) {
Current = 0;
Current = nullptr;
// Update reference counts. Nothing happens when RefCount reaches 0, so
// we don't have to check for E == CacheEntry etc.
if (CacheEntry)
@ -184,10 +186,10 @@ public:
public:
/// Cursor - Create a dangling cursor.
Cursor() : CacheEntry(0), Current(0) {}
~Cursor() { setEntry(0); }
Cursor() : CacheEntry(nullptr), Current(nullptr) {}
~Cursor() { setEntry(nullptr); }
Cursor(const Cursor &O) : CacheEntry(0), Current(0) {
Cursor(const Cursor &O) : CacheEntry(nullptr), Current(nullptr) {
setEntry(O.CacheEntry);
}
@ -200,7 +202,7 @@ public:
void setPhysReg(InterferenceCache &Cache, unsigned PhysReg) {
// Release reference before getting a new one. That guarantees we can
// actually have CacheEntries live cursors.
setEntry(0);
setEntry(nullptr);
if (PhysReg)
setEntry(Cache.get(PhysReg));
}