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MipsAsmParser.cpp: Fix vg_leak in MipsOperand::CreateMem(). Mem.Base is managed by k_Memory itself.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@206293 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
NAKAMURA Takumi 2014-04-15 14:13:21 +00:00
parent 9bf9a794df
commit 9bc7c0707d
1 changed files with 16 additions and 0 deletions
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16
lib/Target/Mips/AsmParser/MipsAsmParser.cpp
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@ -756,6 +756,20 @@ public:
/// getEndLoc - Get the location of the last token of this operand.
SMLoc getEndLoc() const { return EndLoc; }
virtual ~MipsOperand() {
switch (Kind) {
case k_Immediate:
break;
case k_Memory:
delete Mem.Base;
break;
case k_PhysRegister:
case k_RegisterIndex:
case k_Token:
break;
}
}
virtual void print(raw_ostream &OS) const {
switch (Kind) {
case k_Immediate:
@ -1628,6 +1642,7 @@ MipsAsmParser::OperandMatchResultTy MipsAsmParser::parseMemOperand(
SMLoc::getFromPointer(Parser.getTok().getLoc().getPointer() - 1);
// Zero register assumed, add a memory operand with ZERO as its base.
// "Base" will be managed by k_Memory.
MipsOperand *Base = MipsOperand::CreateGPRReg(
0, getContext().getRegisterInfo(), S, E, *this);
Operands.push_back(MipsOperand::CreateMem(Base, IdVal, S, E, *this));
@ -1659,6 +1674,7 @@ MipsAsmParser::OperandMatchResultTy MipsAsmParser::parseMemOperand(
// Replace the register operand with the memory operand.
MipsOperand *op = static_cast<MipsOperand *>(Operands.back());
// Remove the register from the operands.
// "op" will be managed by k_Memory.
Operands.pop_back();
// Add the memory operand.
if (const MCBinaryExpr *BE = dyn_cast<MCBinaryExpr>(IdVal)) {