MachineRegisterInfo: Remove UsedPhysReg infrastructure

[oota-llvm.git] / lib / Target / Hexagon / HexagonFrameLowering.cpp

diff --git a/lib/Target/Hexagon/HexagonFrameLowering.cpp b/lib/Target/Hexagon/HexagonFrameLowering.cpp
index 21a8996b11590715f24d9118747a4f6624d39172..29283c81877e46ebfd73dee0e929f30baf499ae8 100644 (file)
--- a/lib/Target/Hexagon/HexagonFrameLowering.cpp
+++ b/lib/Target/Hexagon/HexagonFrameLowering.cpp
@@ -864,13 +864,13 @@ static bool needToReserveScavengingSpillSlots(MachineFunction &MF,
   // Check for an unused caller-saved register.
   for ( ; *CallerSavedRegs; ++CallerSavedRegs) {
     MCPhysReg FreeReg = *CallerSavedRegs;
-    if (MRI.isPhysRegUsed(FreeReg))
+    if (!MRI.reg_nodbg_empty(FreeReg))
       continue;
 
     // Check aliased register usage.
     bool IsCurrentRegUsed = false;
     for (MCRegAliasIterator AI(FreeReg, &HRI, false); AI.isValid(); ++AI)
-      if (MRI.isPhysRegUsed(*AI)) {
+      if (!MRI.reg_nodbg_empty(*AI)) {
         IsCurrentRegUsed = true;
         break;
       }