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Diffstat (limited to 'lib/CodeGen/MachineInstr.cpp')
-rw-r--r--lib/CodeGen/MachineInstr.cpp192
1 files changed, 93 insertions, 99 deletions
diff --git a/lib/CodeGen/MachineInstr.cpp b/lib/CodeGen/MachineInstr.cpp
index bbe2144f23..1db2d48fc9 100644
--- a/lib/CodeGen/MachineInstr.cpp
+++ b/lib/CodeGen/MachineInstr.cpp
@@ -14,6 +14,7 @@
#include "llvm/CodeGen/MachineInstr.h"
+#include "llvm/Target/MachineRegInfo.h"
#include "llvm/Method.h"
#include "llvm/ConstPoolVals.h"
#include "llvm/Instruction.h"
@@ -49,7 +50,7 @@ MachineInstr::SetMachineOperand(unsigned int i,
assert(i < operands.size());
operands[i].Initialize(operandType, _val);
operands[i].isDef = isdef ||
- TargetInstrDescriptors[opCode].resultPos == (int) i;
+ TargetInstrDescriptors[opCode].resultPos == (int) i;
}
void
@@ -60,7 +61,7 @@ MachineInstr::SetMachineOperand(unsigned int i,
assert(i < operands.size());
operands[i].InitializeConst(operandType, intValue);
operands[i].isDef = isdef ||
- TargetInstrDescriptors[opCode].resultPos == (int) i;
+ TargetInstrDescriptors[opCode].resultPos == (int) i;
}
void
@@ -70,7 +71,7 @@ MachineInstr::SetMachineOperand(unsigned int i,
assert(i < operands.size());
operands[i].InitializeReg(regNum);
operands[i].isDef = isdef ||
- TargetInstrDescriptors[opCode].resultPos == (int) i;
+ TargetInstrDescriptors[opCode].resultPos == (int) i;
}
void
@@ -104,39 +105,45 @@ operator<< (ostream& os, const MachineInstr& minstr)
return os;
}
-static inline ostream &OutputOperand(ostream &os, const MachineOperand &mop) {
- switch (mop.getOperandType()) {
- case MachineOperand::MO_CCRegister:
- case MachineOperand::MO_VirtualRegister:
- return os << "(val " << mop.getVRegValue() << ")";
- case MachineOperand::MO_MachineRegister:
- return os << "(" << mop.getMachineRegNum() << ")";
- default:
- assert(0 && "Unknown operand type");
- return os;
- }
+static inline ostream&
+OutputOperand(ostream &os, const MachineOperand &mop)
+{
+ switch (mop.getOperandType())
+ {
+ case MachineOperand::MO_CCRegister:
+ case MachineOperand::MO_VirtualRegister:
+ return os << "(val " << mop.getVRegValue() << ")";
+ case MachineOperand::MO_MachineRegister:
+ return os << "(" << mop.getMachineRegNum() << ")";
+ default:
+ assert(0 && "Unknown operand type");
+ return os;
+ }
}
-ostream &operator<<(ostream &os, const MachineOperand &mop) {
- switch(mop.opType) {
- case MachineOperand::MO_VirtualRegister:
- case MachineOperand::MO_MachineRegister:
- os << "%reg";
- return OutputOperand(os, mop);
- case MachineOperand::MO_CCRegister:
- os << "%ccreg";
- return OutputOperand(os, mop);
- case MachineOperand::MO_SignExtendedImmed:
- return os << mop.immedVal;
- case MachineOperand::MO_UnextendedImmed:
- return os << mop.immedVal;
- case MachineOperand::MO_PCRelativeDisp:
- return os << "%disp(label " << mop.getVRegValue() << ")";
- default:
- assert(0 && "Unrecognized operand type");
- break;
- }
+ostream&
+operator<<(ostream &os, const MachineOperand &mop)
+{
+ switch(mop.opType)
+ {
+ case MachineOperand::MO_VirtualRegister:
+ case MachineOperand::MO_MachineRegister:
+ os << "%reg";
+ return OutputOperand(os, mop);
+ case MachineOperand::MO_CCRegister:
+ os << "%ccreg";
+ return OutputOperand(os, mop);
+ case MachineOperand::MO_SignExtendedImmed:
+ return os << mop.immedVal;
+ case MachineOperand::MO_UnextendedImmed:
+ return os << mop.immedVal;
+ case MachineOperand::MO_PCRelativeDisp:
+ return os << "%disp(label " << mop.getVRegValue() << ")";
+ default:
+ assert(0 && "Unrecognized operand type");
+ break;
+ }
return os;
}
@@ -188,12 +195,12 @@ Set2OperandsFromInstr(MachineInstr* minstr,
#ifdef REVERT_TO_EXPLICIT_CONSTANT_CHECKS
unsigned
Set3OperandsFromInstrJUNK(MachineInstr* minstr,
- InstructionNode* vmInstrNode,
- const TargetMachine& target,
- bool canDiscardResult,
- int op1Position,
- int op2Position,
- int resultPosition)
+ InstructionNode* vmInstrNode,
+ const TargetMachine& target,
+ bool canDiscardResult,
+ int op1Position,
+ int op2Position,
+ int resultPosition)
{
assert(op1Position >= 0);
assert(resultPosition >= 0);
@@ -208,10 +215,11 @@ Set3OperandsFromInstrJUNK(MachineInstr* minstr,
minstr->SetMachineOperand(op1Position, /*regNum*/ target.zeroRegNum);
else
{
- if (op1Value->isConstant()) {
- // value is constant and must be loaded from constant pool
- returnFlags = returnFlags | (1 << op1Position);
- }
+ if (op1Value->isConstant())
+ {
+ // value is constant and must be loaded from constant pool
+ returnFlags = returnFlags | (1 << op1Position);
+ }
minstr->SetMachineOperand(op1Position, MachineOperand::MO_VirtualRegister,
op1Value);
}
@@ -233,10 +241,11 @@ Set3OperandsFromInstrJUNK(MachineInstr* minstr,
minstr->SetMachineOperand(op2Position, machineRegNum);
else if (op2type == MachineOperand::MO_VirtualRegister)
{
- if (op2Value->isConstant()) {
- // value is constant and must be loaded from constant pool
- returnFlags = returnFlags | (1 << op2Position);
- }
+ if (op2Value->isConstant())
+ {
+ // value is constant and must be loaded from constant pool
+ returnFlags = returnFlags | (1 << op2Position);
+ }
minstr->SetMachineOperand(op2Position, op2type, op2Value);
}
else
@@ -279,10 +288,12 @@ Set3OperandsFromInstr(MachineInstr* minstr,
vmInstrNode->rightChild()->getValue());
// result operand: if it can be discarded, use a dead register if one exists
- if (canDiscardResult && target.zeroRegNum >= 0)
- minstr->SetMachineOperand(resultPosition, target.zeroRegNum);
+ if (canDiscardResult && target.getRegInfo().getZeroRegNum() >= 0)
+ minstr->SetMachineOperand(resultPosition,
+ target.getRegInfo().getZeroRegNum());
else
- minstr->SetMachineOperand(resultPosition, MachineOperand::MO_VirtualRegister, vmInstrNode->getValue());
+ minstr->SetMachineOperand(resultPosition,
+ MachineOperand::MO_VirtualRegister, vmInstrNode->getValue());
}
@@ -304,16 +315,18 @@ ChooseRegOrImmed(Value* val,
ConstPoolVal *CPV = val->castConstant();
if (!CPV) return opType;
- if (CPV->getType() == Type::BoolTy) {
- ConstPoolBool *CPB = (ConstPoolBool*)CPV;
- if (!CPB->getValue() && target.zeroRegNum >= 0) {
- getMachineRegNum = target.zeroRegNum;
- return MachineOperand::MO_MachineRegister;
- }
+ if (CPV->getType() == Type::BoolTy)
+ {
+ ConstPoolBool *CPB = (ConstPoolBool*)CPV;
+ if (!CPB->getValue() && target.getRegInfo().getZeroRegNum() >= 0)
+ {
+ getMachineRegNum = target.getRegInfo().getZeroRegNum();
+ return MachineOperand::MO_MachineRegister;
+ }
- getImmedValue = 1;
- return MachineOperand::MO_SignExtendedImmed;
- }
+ getImmedValue = 1;
+ return MachineOperand::MO_SignExtendedImmed;
+ }
if (!CPV->getType()->isIntegral()) return opType;
@@ -323,22 +336,28 @@ ChooseRegOrImmed(Value* val,
// unsigned constants to signed).
//
int64_t intValue;
- if (CPV->getType()->isSigned()) {
- intValue = ((ConstPoolSInt*)CPV)->getValue();
- } else {
- uint64_t V = ((ConstPoolUInt*)CPV)->getValue();
- if (V >= INT64_MAX) return opType;
- intValue = (int64_t)V;
- }
+ if (CPV->getType()->isSigned())
+ {
+ intValue = ((ConstPoolSInt*)CPV)->getValue();
+ }
+ else
+ {
+ uint64_t V = ((ConstPoolUInt*)CPV)->getValue();
+ if (V >= INT64_MAX) return opType;
+ intValue = (int64_t)V;
+ }
- if (intValue == 0 && target.zeroRegNum >= 0){
- opType = MachineOperand::MO_MachineRegister;
- getMachineRegNum = target.zeroRegNum;
- } else if (canUseImmed &&
- target.getInstrInfo().constantFitsInImmedField(opCode, intValue)) {
- opType = MachineOperand::MO_SignExtendedImmed;
- getImmedValue = intValue;
- }
+ if (intValue == 0 && target.getRegInfo().getZeroRegNum() >= 0)
+ {
+ opType = MachineOperand::MO_MachineRegister;
+ getMachineRegNum = target.getRegInfo().getZeroRegNum();
+ }
+ else if (canUseImmed &&
+ target.getInstrInfo().constantFitsInImmedField(opCode, intValue))
+ {
+ opType = MachineOperand::MO_SignExtendedImmed;
+ getImmedValue = intValue;
+ }
return opType;
}
@@ -365,28 +384,3 @@ PrintMachineInstructions(const Method *const method)
cout << endl << "End method \"" << method->getName() << "\""
<< endl << endl;
}
-
-#if 0
-
-void PrintMachineInstructions(Method * method)
-
-{
- cout << "\n" << method->getReturnType()
- << " \"" << method->getName() << "\"" << endl;
-
- for (Method::const_iterator BI = method->begin(); BI != method->end(); ++BI)
- {
- const BasicBlock* bb = *BI;
- cout << "\n"
- << (bb->hasName()? bb->getName() : "Label")
- << " (" << bb << ")" << ":"
- << endl;
-
- const MachineCodeForBasicBlock& mvec = bb->getMachineInstrVec();
- for (unsigned i=0; i < mvec.size(); i++)
- cout << "\t" << *mvec[i] << endl;
- }
- cout << endl << "End method \"" << method->getName() << "\""
- << endl << endl;
-}
-#endif
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2025-05-01 07:17:43 +0000