Switch all register list clients to the new MC*Iterator interface.

No functional change intended.

Sorry for the churn. The iterator classes are supposed to help avoid
giant commits like this one in the future. The TableGen-produced
register lists are getting quite large, and it may be necessary to
change the table representation.

This makes it possible to do so without changing all clients (again).

llvm-svn: 157854

1 files changed, 2 insertions, 2 deletions

diff --git a/llvm/lib/CodeGen/ProcessImplicitDefs.cpp b/llvm/lib/CodeGen/ProcessImplicitDefs.cpp
index 1ad3479afb4..7735fa2bb12 100644
--- a/llvm/lib/CodeGen/ProcessImplicitDefs.cpp
+++ b/llvm/lib/CodeGen/ProcessImplicitDefs.cpp
@@ -113,8 +113,8 @@ bool ProcessImplicitDefs::runOnMachineFunction(MachineFunction &fn) {
         unsigned Reg = MI->getOperand(0).getReg();
         ImpDefRegs.insert(Reg);
         if (TargetRegisterInfo::isPhysicalRegister(Reg)) {
-          for (const uint16_t *SS = TRI->getSubRegisters(Reg); *SS; ++SS)
-            ImpDefRegs.insert(*SS);
+          for (MCSubRegIterator SubRegs(Reg, TRI); SubRegs.isValid(); ++SubRegs)
+            ImpDefRegs.insert(*SubRegs);
         }
         continue;
       }