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Null initialize a few variables flagged by

Browse Source 
clang's -Wuninitialized-experimental warning.
While these don't look like real bugs, clang's
-Wuninitialized-experimental analysis is stricter
than GCC's, and these fixes have the benefit
of being general nice cleanups.

llvm-svn: 124073
This commit is contained in:
Ted Kremenek 2011-01-23 17:05:06 +00:00
parent 14333be1af
commit 880c19c032
7 changed files with 7 additions and 7 deletions
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2
lib/Analysis/ProfileInfo.cpp
View File

@ -889,7 +889,7 @@ void ProfileInfoT<Function,BasicBlock>::repair(const Function *F) {
FI = Unvisited.begin(), FE = Unvisited.end();
while(FI != FE && !FoundPath) {
const BasicBlock *BB = *FI; ++FI;
const BasicBlock *Dest;
const BasicBlock *Dest = 0;
Path P;
bool BackEdgeFound = false;
for (const_pred_iterator NBB = pred_begin(BB), End = pred_end(BB);

2
lib/CodeGen/SelectionDAG/SelectionDAG.cpp
View File

@ -4931,7 +4931,7 @@ SelectionDAG::getMachineNode(unsigned Opcode, DebugLoc DL, SDVTList VTs,
const SDValue *Ops, unsigned NumOps) {
bool DoCSE = VTs.VTs[VTs.NumVTs-1] != MVT::Glue;
MachineSDNode *N;
void *IP;
void *IP = 0;
if (DoCSE) {
FoldingSetNodeID ID;

2
lib/Support/APFloat.cpp
View File

@ -175,7 +175,7 @@ totalExponent(StringRef::iterator p, StringRef::iterator end,
{
int unsignedExponent;
bool negative, overflow;
int exponent;
int exponent = 0;
assert(p != end && "Exponent has no digits");

2
lib/Target/ARM/ARMExpandPseudoInsts.cpp
View File

@ -518,7 +518,7 @@ void ARMExpandPseudo::ExpandLaneOp(MachineBasicBlock::iterator &MBBI) {
}
assert(Lane < RegElts && "out of range lane for VLD/VST-lane");
unsigned D0, D1, D2, D3;
unsigned D0 = 0, D1 = 0, D2 = 0, D3 = 0;
unsigned DstReg = 0;
bool DstIsDead = false;
if (TableEntry->IsLoad) {

2
lib/Target/CellSPU/SPUISelDAGToDAG.cpp
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@ -612,7 +612,7 @@ SDNode *
SPUDAGToDAGISel::Select(SDNode *N) {
unsigned Opc = N->getOpcode();
int n_ops = -1;
unsigned NewOpc;
unsigned NewOpc = 0;
EVT OpVT = N->getValueType(0);
SDValue Ops[8];
DebugLoc dl = N->getDebugLoc();

2
lib/Target/X86/Disassembler/X86DisassemblerDecoder.c
View File

@ -290,7 +290,7 @@ static int readPrefixes(struct InternalInstruction* insn) {
BOOL isPrefix = TRUE;
BOOL prefixGroups[4] = { FALSE };
uint64_t prefixLocation;
uint8_t byte;
uint8_t byte = 0;
BOOL hasAdSize = FALSE;
BOOL hasOpSize = FALSE;

2
lib/Transforms/InstCombine/InstCombineShifts.cpp
View File

@ -76,7 +76,7 @@ static bool CanEvaluateShifted(Value *V, unsigned NumBits, bool isLeftShift,
// if the needed bits are already zero in the input. This allows us to reuse
// the value which means that we don't care if the shift has multiple uses.
// TODO: Handle opposite shift by exact value.
ConstantInt *CI;
ConstantInt *CI = 0;
if ((isLeftShift && match(I, m_LShr(m_Value(), m_ConstantInt(CI)))) ||
(!isLeftShift && match(I, m_Shl(m_Value(), m_ConstantInt(CI))))) {
if (CI->getZExtValue() == NumBits) {