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Move findTiedToSrcOperand to TargetInstrDescriptor.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32366 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Evan Cheng 2006-12-08 18:45:48 +00:00
parent 6ec10ef00c
commit cc22a7a2ad
4 changed files with 20 additions and 23 deletions
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9
include/llvm/Target/TargetInstrInfo.h
View File

@ -139,6 +139,10 @@ public:
}
return -1;
}
/// findTiedToSrcOperand - Returns the operand that is tied to the specified
/// dest operand. Returns -1 if there isn't one.
int findTiedToSrcOperand(unsigned OpNum) const;
};
@ -257,11 +261,6 @@ public:
return get(Opcode).getOperandConstraint(OpNum, Constraint);
}
/// findTiedToSrcOperand - Returns the operand that is tied to the specified
/// dest operand. Returns -1 if there isn't one.
int findTiedToSrcOperand(const TargetInstrDescriptor *TID,
unsigned OpNum) const;
/// getDWARF_LABELOpcode - Return the opcode of the target's DWARF_LABEL
/// instruction if it has one. This is used by codegen passes that update
/// DWARF line number info as they modify the code.

3
lib/CodeGen/RegAllocSimple.cpp
View File

@ -198,8 +198,7 @@ void RegAllocSimple::AllocateBasicBlock(MachineBasicBlock &MBB) {
unsigned physReg = Virt2PhysRegMap[virtualReg];
if (physReg == 0) {
if (op.isDef()) {
int TiedOp = TM->getInstrInfo()->
findTiedToSrcOperand(MI->getInstrDescriptor(), i);
int TiedOp = MI->getInstrDescriptor()->findTiedToSrcOperand(i);
if (TiedOp == -1) {
physReg = getFreeReg(virtualReg);
} else {

4
lib/CodeGen/VirtRegMap.cpp
View File

@ -99,7 +99,7 @@ void VirtRegMap::virtFolded(unsigned VirtReg, MachineInstr *OldMI,
ModRef MRInfo;
const TargetInstrDescriptor *TID = OldMI->getInstrDescriptor();
if (TID->getOperandConstraint(OpNo, TOI::TIED_TO) != -1 ||
TII.findTiedToSrcOperand(TID, OpNo) != -1) {
TID->findTiedToSrcOperand(OpNo) != -1) {
// Folded a two-address operand.
MRInfo = isModRef;
} else if (OldMI->getOperand(OpNo).isDef()) {
@ -851,7 +851,7 @@ void LocalSpiller::RewriteMBB(MachineBasicBlock &MBB, VirtRegMap &VRM) {
// If this def is part of a two-address operand, make sure to execute
// the store from the correct physical register.
unsigned PhysReg;
int TiedOp = TII->findTiedToSrcOperand(MI.getInstrDescriptor(), i);
int TiedOp = MI.getInstrDescriptor()->findTiedToSrcOperand(i);
if (TiedOp != -1)
PhysReg = MI.getOperand(TiedOp).getReg();
else {

27
lib/Target/TargetInstrInfo.cpp
View File

@ -17,6 +17,19 @@
#include "llvm/DerivedTypes.h"
using namespace llvm;
/// findTiedToSrcOperand - Returns the operand that is tied to the specified
/// dest operand. Returns -1 if there isn't one.
int TargetInstrDescriptor::findTiedToSrcOperand(unsigned OpNum) const {
for (unsigned i = 0, e = numOperands; i != e; ++i) {
if (i == OpNum)
continue;
if (getOperandConstraint(i, TOI::TIED_TO) == (int)OpNum)
return i;
}
return -1;
}
TargetInstrInfo::TargetInstrInfo(const TargetInstrDescriptor* Desc,
unsigned numOpcodes)
: desc(Desc), NumOpcodes(numOpcodes) {
@ -25,20 +38,6 @@ TargetInstrInfo::TargetInstrInfo(const TargetInstrDescriptor* Desc,
TargetInstrInfo::~TargetInstrInfo() {
}
/// findTiedToSrcOperand - Returns the operand that is tied to the specified
/// dest operand. Returns -1 if there isn't one.
int TargetInstrInfo::findTiedToSrcOperand(const TargetInstrDescriptor *TID,
unsigned OpNum) const {
for (unsigned i = 0, e = TID->numOperands; i != e; ++i) {
if (i == OpNum)
continue;
if (TID->getOperandConstraint(i, TOI::TIED_TO) == (int)OpNum)
return i;
}
return -1;
}
// commuteInstruction - The default implementation of this method just exchanges
// operand 1 and 2.
MachineInstr *TargetInstrInfo::commuteInstruction(MachineInstr *MI) const {