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Avoid hardcoding that X86 addresses have 4 operands.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@67848 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2009-03-27 15:57:50 +00:00
parent e4d5d34cfc
commit 705d800879
1 changed files with 8 additions and 5 deletions
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13
lib/Target/X86/X86InstrInfo.cpp
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@ -31,6 +31,9 @@
using namespace llvm;
// FIXME: This should be some header
static const int X86AddrNumOperands = 4;
namespace {
cl::opt<bool>
NoFusing("disable-spill-fusing",
@ -2196,7 +2199,7 @@ MachineInstr* X86InstrInfo::foldMemoryOperandImpl(MachineFunction &MF,
} else {
// Folding a normal load. Just copy the load's address operands.
unsigned NumOps = LoadMI->getDesc().getNumOperands();
for (unsigned i = NumOps - 4; i != NumOps; ++i)
for (unsigned i = NumOps - X86AddrNumOperands; i != NumOps; ++i)
MOs.push_back(LoadMI->getOperand(i));
}
return foldMemoryOperandImpl(MF, MI, Ops[0], MOs);
@ -2283,13 +2286,13 @@ bool X86InstrInfo::unfoldMemoryOperand(MachineFunction &MF, MachineInstr *MI,
const TargetOperandInfo &TOI = TID.OpInfo[Index];
const TargetRegisterClass *RC = TOI.isLookupPtrRegClass()
? RI.getPointerRegClass() : RI.getRegClass(TOI.RegClass);
SmallVector<MachineOperand,4> AddrOps;
SmallVector<MachineOperand, X86AddrNumOperands> AddrOps;
SmallVector<MachineOperand,2> BeforeOps;
SmallVector<MachineOperand,2> AfterOps;
SmallVector<MachineOperand,4> ImpOps;
for (unsigned i = 0, e = MI->getNumOperands(); i != e; ++i) {
MachineOperand &Op = MI->getOperand(i);
if (i >= Index && i < Index+4)
if (i >= Index && i < Index + X86AddrNumOperands)
AddrOps.push_back(Op);
else if (Op.isReg() && Op.isImplicit())
ImpOps.push_back(Op);
@ -2304,7 +2307,7 @@ bool X86InstrInfo::unfoldMemoryOperand(MachineFunction &MF, MachineInstr *MI,
loadRegFromAddr(MF, Reg, AddrOps, RC, NewMIs);
if (UnfoldStore) {
// Address operands cannot be marked isKill.
for (unsigned i = 1; i != 5; ++i) {
for (unsigned i = 1; i != 1 + X86AddrNumOperands; ++i) {
MachineOperand &MO = NewMIs[0]->getOperand(i);
if (MO.isReg())
MO.setIsKill(false);
@ -2390,7 +2393,7 @@ X86InstrInfo::unfoldMemoryOperand(SelectionDAG &DAG, SDNode *N,
unsigned NumOps = N->getNumOperands();
for (unsigned i = 0; i != NumOps-1; ++i) {
SDValue Op = N->getOperand(i);
if (i >= Index-NumDefs && i < Index-NumDefs+4)
if (i >= Index-NumDefs && i < Index-NumDefs + X86AddrNumOperands)
AddrOps.push_back(Op);
else if (i < Index-NumDefs)
BeforeOps.push_back(Op);