Simplify this code by using use_iterator instead of reg_iterator

and skipping the defs.

llvm-svn: 82811

1 files changed, 2 insertions, 4 deletions

diff --git a/llvm/lib/CodeGen/MachineSink.cpp b/llvm/lib/CodeGen/MachineSink.cpp
index 7fb33c6e4ce..f975ad344ad 100644
--- a/llvm/lib/CodeGen/MachineSink.cpp
+++ b/llvm/lib/CodeGen/MachineSink.cpp
@@ -70,10 +70,8 @@ bool MachineSinking::AllUsesDominatedByBlock(unsigned Reg,
                                              MachineBasicBlock *MBB) const {
   assert(TargetRegisterInfo::isVirtualRegister(Reg) &&
          "Only makes sense for vregs");
-  for (MachineRegisterInfo::reg_iterator I = RegInfo->reg_begin(Reg),
-       E = RegInfo->reg_end(); I != E; ++I) {
-    if (I.getOperand().isDef()) continue;  // ignore def.
-    
+  for (MachineRegisterInfo::use_iterator I = RegInfo->use_begin(Reg),
+       E = RegInfo->use_end(); I != E; ++I) {
     // Determine the block of the use.
     MachineInstr *UseInst = &*I;
     MachineBasicBlock *UseBlock = UseInst->getParent();