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Require the two-argument MI::addOperand(MF, MO) for dangling instructions.

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Instructions that are inserted in a basic block can still be decorated
with addOperand(MO).

Make the two-argument addOperand() function contain the actual
implementation. This function will now always have a valid MF reference
that it can use for memory allocation.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170798 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2012-12-20 22:54:05 +00:00
parent be06aacaa9
commit 56706db45b
2 changed files with 25 additions and 12 deletions
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27
include/llvm/CodeGen/MachineInstr.h
View File

@ -940,19 +940,24 @@ public:
//===--------------------------------------------------------------------===//
// Accessors used to build up machine instructions.
/// addOperand - Add the specified operand to the instruction. If it is an
/// implicit operand, it is added to the end of the operand list. If it is
/// an explicit operand it is added at the end of the explicit operand list
/// Add the specified operand to the instruction. If it is an implicit
/// operand, it is added to the end of the operand list. If it is an
/// explicit operand it is added at the end of the explicit operand list
/// (before the first implicit operand).
void addOperand(const MachineOperand &Op);
///
/// MF must be the machine function that was used to allocate this
/// instruction.
///
/// MachineInstrBuilder provides a more convenient interface for creating
/// instructions and adding operands.
void addOperand(MachineFunction &MF, const MachineOperand &Op);
// Add an operand while providing a context pointer. This will replace the
// single-argument function shortly.
//
// MF must be the machine function that was used to allocate this instruction.
void addOperand(MachineFunction &MF, const MachineOperand &Op) {
addOperand(Op);
}
/// Add an operand without providing an MF reference. This only works for
/// instructions that are inserted in a basic block.
///
/// MachineInstrBuilder and the two-argument addOperand(MF, MO) should be
/// preferred.
void addOperand(const MachineOperand &Op);
/// setDesc - Replace the instruction descriptor (thus opcode) of
/// the current instruction with a new one.

10
lib/CodeGen/MachineInstr.cpp
View File

@ -603,11 +603,19 @@ void MachineInstr::AddRegOperandsToUseLists(MachineRegisterInfo &MRI) {
MRI.addRegOperandToUseList(&Operands[i]);
}
void MachineInstr::addOperand(const MachineOperand &Op) {
MachineBasicBlock *MBB = getParent();
assert(MBB && "Use MachineInstrBuilder to add operands to dangling instrs");
MachineFunction *MF = MBB->getParent();
assert(MF && "Use MachineInstrBuilder to add operands to dangling instrs");
addOperand(*MF, Op);
}
/// addOperand - Add the specified operand to the instruction. If it is an
/// implicit operand, it is added to the end of the operand list. If it is
/// an explicit operand it is added at the end of the explicit operand list
/// (before the first implicit operand).
void MachineInstr::addOperand(const MachineOperand &Op) {
void MachineInstr::addOperand(MachineFunction &MF, const MachineOperand &Op) {
assert(MCID && "Cannot add operands before providing an instr descriptor");
bool isImpReg = Op.isReg() && Op.isImplicit();
MachineRegisterInfo *RegInfo = getRegInfo();