use range-based for loops; NFCI

llvm-svn: 241463

1 files changed, 6 insertions, 8 deletions

diff --git a/llvm/lib/CodeGen/MachineTraceMetrics.cpp b/llvm/lib/CodeGen/MachineTraceMetrics.cpp
index 10a984cbef6..ddeabbd08a3 100644
--- a/llvm/lib/CodeGen/MachineTraceMetrics.cpp
+++ b/llvm/lib/CodeGen/MachineTraceMetrics.cpp
@@ -998,8 +998,7 @@ computeInstrHeights(const MachineBasicBlock *MBB) {
   // MBB is the highest precomputed block in the trace.
   if (MBB) {
     TraceBlockInfo &TBI = BlockInfo[MBB->getNumber()];
-    for (unsigned i = 0, e = TBI.LiveIns.size(); i != e; ++i) {
-      LiveInReg LI = TBI.LiveIns[i];
+    for (LiveInReg &LI : TBI.LiveIns) {
       if (TargetRegisterInfo::isVirtualRegister(LI.Reg)) {
         // For virtual registers, the def latency is included.
         unsigned &Height = Heights[MTM.MRI->getVRegDef(LI.Reg)];
@@ -1209,8 +1208,7 @@ unsigned MachineTraceMetrics::Trace::getResourceLength(
                             unsigned ResourceIdx)
                          ->unsigned {
     unsigned Cycles = 0;
-    for (unsigned I = 0; I != Instrs.size(); ++I) {
-      const MCSchedClassDesc *SC = Instrs[I];
+    for (const MCSchedClassDesc *SC : Instrs) {
       if (!SC->isValid())
         continue;
       for (TargetSchedModel::ProcResIter
@@ -1228,8 +1226,8 @@ unsigned MachineTraceMetrics::Trace::getResourceLength(
 
   for (unsigned K = 0; K != PRDepths.size(); ++K) {
     unsigned PRCycles = PRDepths[K] + PRHeights[K];
-    for (unsigned I = 0; I != Extrablocks.size(); ++I)
-      PRCycles += TE.MTM.getProcResourceCycles(Extrablocks[I]->getNumber())[K];
+    for (const MachineBasicBlock *MBB : Extrablocks)
+      PRCycles += TE.MTM.getProcResourceCycles(MBB->getNumber())[K];
     PRCycles += extraCycles(ExtraInstrs, K);
     PRCycles -= extraCycles(RemoveInstrs, K);
     PRMax = std::max(PRMax, PRCycles);
@@ -1240,8 +1238,8 @@ unsigned MachineTraceMetrics::Trace::getResourceLength(
   // Instrs: #instructions in current trace outside current block.
   unsigned Instrs = TBI.InstrDepth + TBI.InstrHeight;
   // Add instruction count from the extra blocks.
-  for (unsigned i = 0, e = Extrablocks.size(); i != e; ++i)
-    Instrs += TE.MTM.getResources(Extrablocks[i])->InstrCount;
+  for (const MachineBasicBlock *MBB : Extrablocks)
+    Instrs += TE.MTM.getResources(MBB)->InstrCount;
   Instrs += ExtraInstrs.size();
   Instrs -= RemoveInstrs.size();
   if (unsigned IW = TE.MTM.SchedModel.getIssueWidth())