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Add MachineOperand::ChangeToFPImmediate and setFPImm

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@218579 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Matt Arsenault 2014-09-28 19:24:59 +00:00
parent 3f40848670
commit 0df40b4969
2 changed files with 37 additions and 7 deletions
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12
include/llvm/CodeGen/MachineOperand.h
View File

@ -506,6 +506,11 @@ public:
Contents.ImmVal = immVal;
}
void setFPImm(const ConstantFP *CFP) {
assert(isFPImm() && "Wrong MachineOperand mutator");
Contents.CFP = CFP;
}
void setOffset(int64_t Offset) {
assert((isGlobal() || isSymbol() || isCPI() || isTargetIndex() ||
isBlockAddress()) && "Wrong MachineOperand accessor");
@ -544,6 +549,11 @@ public:
/// the setImm method should be used.
void ChangeToImmediate(int64_t ImmVal);
/// ChangeToFPImmediate - Replace this operand with a new FP immediate operand
/// of the specified value. If an operand is known to be an FP immediate
/// already, the setFPImm method should be used.
void ChangeToFPImmediate(const ConstantFP *FPImm);
/// ChangeToRegister - Replace this operand with a new register operand of
/// the specified value. If an operand is known to be an register already,
/// the setReg method should be used.
@ -702,6 +712,8 @@ public:
friend class MachineInstr;
friend class MachineRegisterInfo;
private:
void removeRegFromUses();
//===--------------------------------------------------------------------===//
// Methods for handling register use/def lists.
//===--------------------------------------------------------------------===//

32
lib/CodeGen/MachineInstr.cpp
View File

@ -106,23 +106,41 @@ void MachineOperand::setIsDef(bool Val) {
IsDef = Val;
}
// If this operand is currently a register operand, and if this is in a
// function, deregister the operand from the register's use/def list.
void MachineOperand::removeRegFromUses() {
if (!isReg() || !isOnRegUseList())
return;
if (MachineInstr *MI = getParent()) {
if (MachineBasicBlock *MBB = MI->getParent()) {
if (MachineFunction *MF = MBB->getParent())
MF->getRegInfo().removeRegOperandFromUseList(this);
}
}
}
/// ChangeToImmediate - Replace this operand with a new immediate operand of
/// the specified value. If an operand is known to be an immediate already,
/// the setImm method should be used.
void MachineOperand::ChangeToImmediate(int64_t ImmVal) {
assert((!isReg() || !isTied()) && "Cannot change a tied operand into an imm");
// If this operand is currently a register operand, and if this is in a
// function, deregister the operand from the register's use/def list.
if (isReg() && isOnRegUseList())
if (MachineInstr *MI = getParent())
if (MachineBasicBlock *MBB = MI->getParent())
if (MachineFunction *MF = MBB->getParent())
MF->getRegInfo().removeRegOperandFromUseList(this);
removeRegFromUses();
OpKind = MO_Immediate;
Contents.ImmVal = ImmVal;
}
void MachineOperand::ChangeToFPImmediate(const ConstantFP *FPImm) {
assert((!isReg() || !isTied()) && "Cannot change a tied operand into an imm");
removeRegFromUses();
OpKind = MO_FPImmediate;
Contents.CFP = FPImm;
}
/// ChangeToRegister - Replace this operand with a new register operand of
/// the specified value. If an operand is known to be an register already,
/// the setReg method should be used.