[AArch64] Remove more dead code after r258093.

llvm-svn: 258191

1 files changed, 4 insertions, 12 deletions

diff --git a/llvm/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp b/llvm/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp
index be62459ecf5..8a3103cc15d 100644
--- a/llvm/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp
+++ b/llvm/lib/Target/AArch64/AArch64LoadStoreOptimizer.cpp
@@ -1380,16 +1380,12 @@ MachineBasicBlock::iterator AArch64LoadStoreOpt::findMatchingUpdateInsnForward(
   ModifiedRegs.resize(TRI->getNumRegs());
   UsedRegs.resize(TRI->getNumRegs());
   ++MBBI;
-  for (unsigned Count = 0; MBBI != E; ++MBBI) {
+  for (; MBBI != E; ++MBBI) {
     MachineInstr *MI = MBBI;
-    // Skip DBG_VALUE instructions. Otherwise debug info can affect the
-    // optimization by changing how far we scan.
+    // Skip DBG_VALUE instructions.
     if (MI->isDebugValue())
       continue;
 
-    // Now that we know this is a real instruction, count it.
-    ++Count;
-
     // If we found a match, return it.
     if (isMatchingUpdateInsn(I, MI, BaseReg, UnscaledOffset))
       return MBBI;
@@ -1434,16 +1430,12 @@ MachineBasicBlock::iterator AArch64LoadStoreOpt::findMatchingUpdateInsnBackward(
   ModifiedRegs.resize(TRI->getNumRegs());
   UsedRegs.resize(TRI->getNumRegs());
   --MBBI;
-  for (unsigned Count = 0; MBBI != B; --MBBI) {
+  for (; MBBI != B; --MBBI) {
     MachineInstr *MI = MBBI;
-    // Skip DBG_VALUE instructions. Otherwise debug info can affect the
-    // optimization by changing how far we scan.
+    // Skip DBG_VALUE instructions.
     if (MI->isDebugValue())
       continue;
 
-    // Now that we know this is a real instruction, count it.
-    ++Count;
-
     // If we found a match, return it.
     if (isMatchingUpdateInsn(I, MI, BaseReg, Offset))
       return MBBI;