Speed up the AllocationOrder class a bit.
Allow the central functions to be inlined, and use the argumentless
isHint() function when possible.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169319 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AllocationOrder.cpp b/lib/CodeGen/AllocationOrder.cpp
index a767910..94754a0 100644
--- a/lib/CodeGen/AllocationOrder.cpp
+++ b/lib/CodeGen/AllocationOrder.cpp
@@ -35,6 +35,7 @@
const TargetRegisterInfo *TRI = &VRM.getTargetRegInfo();
Order = RegClassInfo.getOrder(MF.getRegInfo().getRegClass(VirtReg));
TRI->getRegAllocationHints(VirtReg, Order, Hints, MF, &VRM);
+ rewind();
DEBUG({
if (!Hints.empty()) {
@@ -45,21 +46,3 @@
}
});
}
-
-bool AllocationOrder::isHint(unsigned PhysReg) const {
- return std::find(Hints.begin(), Hints.end(), PhysReg) != Hints.end();
-}
-
-unsigned AllocationOrder::next() {
- if (Pos < Hints.size())
- return Hints[Pos++];
- ArrayRef<MCPhysReg>::iterator I = Order.begin() + (Pos - Hints.size());
- ArrayRef<MCPhysReg>::iterator E = Order.end();
- while (I != E) {
- unsigned Reg = *I++;
- ++Pos;
- if (!isHint(Reg))
- return Reg;
- }
- return 0;
-}