Use MCPhysReg for RegisterClassInfo allocation orders.
This saves a bit of memory.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168852 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/RegAllocFast.cpp b/lib/CodeGen/RegAllocFast.cpp
index 8892216..db79284 100644
--- a/lib/CodeGen/RegAllocFast.cpp
+++ b/lib/CodeGen/RegAllocFast.cpp
@@ -527,10 +527,10 @@
}
}
- ArrayRef<unsigned> AO = RegClassInfo.getOrder(RC);
+ ArrayRef<MCPhysReg> AO = RegClassInfo.getOrder(RC);
// First try to find a completely free register.
- for (ArrayRef<unsigned>::iterator I = AO.begin(), E = AO.end(); I != E; ++I) {
+ for (ArrayRef<MCPhysReg>::iterator I = AO.begin(), E = AO.end(); I != E; ++I){
unsigned PhysReg = *I;
if (PhysRegState[PhysReg] == regFree && !UsedInInstr.count(PhysReg)) {
assignVirtToPhysReg(*LRI, PhysReg);
@@ -542,7 +542,7 @@
<< RC->getName() << "\n");
unsigned BestReg = 0, BestCost = spillImpossible;
- for (ArrayRef<unsigned>::iterator I = AO.begin(), E = AO.end(); I != E; ++I) {
+ for (ArrayRef<MCPhysReg>::iterator I = AO.begin(), E = AO.end(); I != E; ++I){
unsigned Cost = calcSpillCost(*I);
DEBUG(dbgs() << "\tRegister: " << PrintReg(*I, TRI) << "\n");
DEBUG(dbgs() << "\tCost: " << Cost << "\n");