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Use newly added API in MRegisterInfo and don't expose the allocatable

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register set anymore. Its users now use the MRegisterInfo API.

llvm-svn: 16061
This commit is contained in:
Alkis Evlogimenos 2004-08-26 22:23:32 +00:00
parent 3bfc6999f2
commit 03913413da
2 changed files with 1 additions and 17 deletions
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4
include/llvm/CodeGen/LiveVariables.h
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@ -231,10 +231,6 @@ public:
/// register.
VarInfo &getVarInfo(unsigned RegIdx);
const std::vector<bool>& getAllocatablePhysicalRegisters() const {
return AllocatablePhysicalRegisters;
}
void MarkVirtRegAliveInBlock(VarInfo &VRInfo, MachineBasicBlock *BB);
void HandleVirtRegUse(VarInfo &VRInfo, MachineBasicBlock *MBB,
MachineInstr *MI);

14
lib/CodeGen/LiveVariables.cpp
View File

@ -148,19 +148,7 @@ bool LiveVariables::runOnMachineFunction(MachineFunction &MF) {
RegInfo = MF.getTarget().getRegisterInfo();
assert(RegInfo && "Target doesn't have register information?");
// First time though, initialize AllocatablePhysicalRegisters for the target
if (AllocatablePhysicalRegisters.empty()) {
// Make space, initializing to false...
AllocatablePhysicalRegisters.resize(RegInfo->getNumRegs());
// Loop over all of the register classes...
for (MRegisterInfo::regclass_iterator RCI = RegInfo->regclass_begin(),
E = RegInfo->regclass_end(); RCI != E; ++RCI)
// Loop over all of the allocatable registers in the function...
for (TargetRegisterClass::iterator I = (*RCI)->allocation_order_begin(MF),
E = (*RCI)->allocation_order_end(MF); I != E; ++I)
AllocatablePhysicalRegisters[*I] = true; // The reg is allocatable!
}
AllocatablePhysicalRegisters = RegInfo->getAllocatableSet(MF);
// PhysRegInfo - Keep track of which instruction was the last use of a
// physical register. This is a purely local property, because all physical