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[AArch64] Fix scan-build null/uninitialized pointer warnings. NFCI. 

llvm-svn: 360267
This commit is contained in:
Simon Pilgrim 2019-05-08 16:27:24 +00:00
parent a1282a39ba
commit 12521b2d43
2 changed files with 5 additions and 4 deletions
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1
llvm/lib/Target/AArch64/AArch64CompressJumpTables.cpp
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@ -107,6 +107,7 @@ bool AArch64CompressJumpTables::compressJumpTable(MachineInstr &MI,
MinBlock = Block; MinBlock = Block;
} }
} }
assert(MinBlock && "Failed to find minimum offset block");
// The ADR instruction needed to calculate the address of the first reachable // The ADR instruction needed to calculate the address of the first reachable
// basic block can address +/-1MB. // basic block can address +/-1MB.

8
llvm/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
View File

@ -2473,7 +2473,7 @@ OperandMatchResultTy
AArch64AsmParser::tryParseAdrpLabel(OperandVector &Operands) { AArch64AsmParser::tryParseAdrpLabel(OperandVector &Operands) {
MCAsmParser &Parser = getParser(); MCAsmParser &Parser = getParser();
SMLoc S = getLoc(); SMLoc S = getLoc();
const MCExpr *Expr; const MCExpr *Expr = nullptr;
if (Parser.getTok().is(AsmToken::Hash)) { if (Parser.getTok().is(AsmToken::Hash)) {
Parser.Lex(); // Eat hash token. Parser.Lex(); // Eat hash token.
@ -2523,7 +2523,7 @@ AArch64AsmParser::tryParseAdrpLabel(OperandVector &Operands) {
OperandMatchResultTy OperandMatchResultTy
AArch64AsmParser::tryParseAdrLabel(OperandVector &Operands) { AArch64AsmParser::tryParseAdrLabel(OperandVector &Operands) {
SMLoc S = getLoc(); SMLoc S = getLoc();
const MCExpr *Expr; const MCExpr *Expr = nullptr;
// Leave anything with a bracket to the default for SVE // Leave anything with a bracket to the default for SVE
if (getParser().getTok().is(AsmToken::LBrac)) if (getParser().getTok().is(AsmToken::LBrac))
@ -2621,7 +2621,7 @@ AArch64AsmParser::tryParseImmWithOptionalShift(OperandVector &Operands) {
// Operand should start from # or should be integer, emit error otherwise. // Operand should start from # or should be integer, emit error otherwise.
return MatchOperand_NoMatch; return MatchOperand_NoMatch;
const MCExpr *Imm; const MCExpr *Imm = nullptr;
if (parseSymbolicImmVal(Imm)) if (parseSymbolicImmVal(Imm))
return MatchOperand_ParseFail; return MatchOperand_ParseFail;
else if (Parser.getTok().isNot(AsmToken::Comma)) { else if (Parser.getTok().isNot(AsmToken::Comma)) {
@ -2660,7 +2660,7 @@ AArch64AsmParser::tryParseImmWithOptionalShift(OperandVector &Operands) {
Parser.Lex(); // Eat the number Parser.Lex(); // Eat the number
// Just in case the optional lsl #0 is used for immediates other than zero. // Just in case the optional lsl #0 is used for immediates other than zero.
if (ShiftAmount == 0 && Imm != 0) { if (ShiftAmount == 0 && Imm != nullptr) {
SMLoc E = Parser.getTok().getLoc(); SMLoc E = Parser.getTok().getLoc();
Operands.push_back(AArch64Operand::CreateImm(Imm, S, E, getContext())); Operands.push_back(AArch64Operand::CreateImm(Imm, S, E, getContext()));
return MatchOperand_Success; return MatchOperand_Success;