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Move PBQP off allocation_order_begin. No functional change intended.

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I think PBQP could use RegisterClassInfo, but it didn't fit neatly with
the external interfaces that PBQP uses, so I'll leave that to Lang.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@133186 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen 2011-06-16 20:37:45 +00:00
parent 7cc2b07437
commit 714c0eb811
1 changed files with 4 additions and 5 deletions
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9
lib/CodeGen/RegAllocPBQP.cpp
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@ -222,10 +222,9 @@ std::auto_ptr<PBQPRAProblem> PBQPBuilder::build(MachineFunction *mf,
// Compute an initial allowed set for the current vreg.
typedef std::vector<unsigned> VRAllowed;
VRAllowed vrAllowed;
for (TargetRegisterClass::iterator aoItr = trc->allocation_order_begin(*mf),
aoEnd = trc->allocation_order_end(*mf);
aoItr != aoEnd; ++aoItr) {
unsigned preg = *aoItr;
ArrayRef<unsigned> rawOrder = trc->getRawAllocationOrder(*mf);
for (unsigned i = 0; i != rawOrder.size(); ++i) {
unsigned preg = rawOrder[i];
if (!reservedRegs.test(preg)) {
vrAllowed.push_back(preg);
}
@ -581,7 +580,7 @@ void RegAllocPBQP::finalizeAlloc() const {
if (physReg == 0) {
const TargetRegisterClass *liRC = mri->getRegClass(li->reg);
physReg = *liRC->allocation_order_begin(*mf);
physReg = liRC->getRawAllocationOrder(*mf).front();
}
vrm->assignVirt2Phys(li->reg, physReg);