[llvm] r360267 - [AArch64] Fix scan-build null/uninitialized pointer warnings. NFCI.

[Simon Pilgrim via llvm-commits]

Author: rksimon
Date: Wed May  8 09:27:24 2019
New Revision: 360267

URL: http://llvm.org/viewvc/llvm-project?rev=360267&view=rev
Log:
[AArch64] Fix scan-build null/uninitialized pointer warnings. NFCI.

Modified:
    llvm/trunk/lib/Target/AArch64/AArch64CompressJumpTables.cpp
    llvm/trunk/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp

Modified: llvm/trunk/lib/Target/AArch64/AArch64CompressJumpTables.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AArch64CompressJumpTables.cpp?rev=360267&r1=360266&r2=360267&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AArch64CompressJumpTables.cpp (original)
+++ llvm/trunk/lib/Target/AArch64/AArch64CompressJumpTables.cpp Wed May  8 09:27:24 2019
@@ -107,6 +107,7 @@ bool AArch64CompressJumpTables::compress
       MinBlock = Block;
     }
   }
+  assert(MinBlock && "Failed to find minimum offset block");
 
   // The ADR instruction needed to calculate the address of the first reachable
   // basic block can address +/-1MB.

Modified: llvm/trunk/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp?rev=360267&r1=360266&r2=360267&view=diff
==============================================================================
--- llvm/trunk/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp (original)
+++ llvm/trunk/lib/Target/AArch64/AsmParser/AArch64AsmParser.cpp Wed May  8 09:27:24 2019
@@ -2473,7 +2473,7 @@ OperandMatchResultTy
 AArch64AsmParser::tryParseAdrpLabel(OperandVector &Operands) {
   MCAsmParser &Parser = getParser();
   SMLoc S = getLoc();
-  const MCExpr *Expr;
+  const MCExpr *Expr = nullptr;
 
   if (Parser.getTok().is(AsmToken::Hash)) {
     Parser.Lex(); // Eat hash token.
@@ -2523,7 +2523,7 @@ AArch64AsmParser::tryParseAdrpLabel(Oper
 OperandMatchResultTy
 AArch64AsmParser::tryParseAdrLabel(OperandVector &Operands) {
   SMLoc S = getLoc();
-  const MCExpr *Expr;
+  const MCExpr *Expr = nullptr;
 
   // Leave anything with a bracket to the default for SVE
   if (getParser().getTok().is(AsmToken::LBrac))
@@ -2621,7 +2621,7 @@ AArch64AsmParser::tryParseImmWithOptiona
     // Operand should start from # or should be integer, emit error otherwise.
     return MatchOperand_NoMatch;
 
-  const MCExpr *Imm;
+  const MCExpr *Imm = nullptr;
   if (parseSymbolicImmVal(Imm))
     return MatchOperand_ParseFail;
   else if (Parser.getTok().isNot(AsmToken::Comma)) {
@@ -2660,7 +2660,7 @@ AArch64AsmParser::tryParseImmWithOptiona
   Parser.Lex(); // Eat the number
 
   // 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();
     Operands.push_back(AArch64Operand::CreateImm(Imm, S, E, getContext()));
     return MatchOperand_Success;