vendor/llvm-project/llvmorg-14-init-10186-gff7f2cfa959b

1 files changed, 9 insertions, 10 deletions

diff --git a/llvm/lib/Target/SystemZ/SystemZMachineScheduler.cpp b/llvm/lib/Target/SystemZ/SystemZMachineScheduler.cpp
index 9bee5e8d1864..4bc979de795d 100644
--- a/llvm/lib/Target/SystemZ/SystemZMachineScheduler.cpp
+++ b/llvm/lib/Target/SystemZ/SystemZMachineScheduler.cpp
@@ -46,9 +46,9 @@ static MachineBasicBlock *getSingleSchedPred(MachineBasicBlock *MBB,
   // The loop header has two predecessors, return the latch, but not for a
   // single block loop.
   if (MBB->pred_size() == 2 && Loop != nullptr && Loop->getHeader() == MBB) {
-    for (auto I = MBB->pred_begin(); I != MBB->pred_end(); ++I)
-      if (Loop->contains(*I))
-        PredMBB = (*I == MBB ? nullptr : *I);
+    for (MachineBasicBlock *Pred : MBB->predecessors())
+      if (Loop->contains(Pred))
+        PredMBB = (Pred == MBB ? nullptr : Pred);
   }
 
   assert ((PredMBB == nullptr || !Loop || Loop->contains(PredMBB))
@@ -106,13 +106,12 @@ void SystemZPostRASchedStrategy::enterMBB(MachineBasicBlock *NextMBB) {
 
   // Emit incoming terminator(s). Be optimistic and assume that branch
   // prediction will generally do "the right thing".
-  for (MachineBasicBlock::iterator I = SinglePredMBB->getFirstTerminator();
-       I != SinglePredMBB->end(); I++) {
-    LLVM_DEBUG(dbgs() << "** Emitting incoming branch: "; I->dump(););
-    bool TakenBranch = (I->isBranch() &&
-                        (TII->getBranchInfo(*I).isIndirect() ||
-                         TII->getBranchInfo(*I).getMBBTarget() == MBB));
-    HazardRec->emitInstruction(&*I, TakenBranch);
+  for (MachineInstr &MI : SinglePredMBB->terminators()) {
+    LLVM_DEBUG(dbgs() << "** Emitting incoming branch: "; MI.dump(););
+    bool TakenBranch = (MI.isBranch() &&
+                        (TII->getBranchInfo(MI).isIndirect() ||
+                         TII->getBranchInfo(MI).getMBBTarget() == MBB));
+    HazardRec->emitInstruction(&MI, TakenBranch);
     if (TakenBranch)
       break;
   }