[llvm] de172ef - [CFIInstrInserter] Delete unneeded checks

[Fangrui Song via llvm-commits]

Author: Fangrui Song
Date: 2020-05-23T14:13:31-07:00
New Revision: de172ef61eab6776c1dbeb5f669e40272e388473

URL: https://github.com/llvm/llvm-project/commit/de172ef61eab6776c1dbeb5f669e40272e388473
DIFF: https://github.com/llvm/llvm-project/commit/de172ef61eab6776c1dbeb5f669e40272e388473.diff

LOG: [CFIInstrInserter] Delete unneeded checks

Added: 
    

Modified: 
    llvm/lib/CodeGen/CFIInstrInserter.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/CodeGen/CFIInstrInserter.cpp b/llvm/lib/CodeGen/CFIInstrInserter.cpp
index 548ae255ad11..cb9f8f2e0184 100644
--- a/llvm/lib/CodeGen/CFIInstrInserter.cpp
+++ b/llvm/lib/CodeGen/CFIInstrInserter.cpp
@@ -173,10 +173,7 @@ void CFIInstrInserter::calculateCFAInfo(MachineFunction &MF) {
   // on the assumption that the first block in the function is the entry block
   // i.e. that it has initial cfa offset and register values as incoming CFA
   // information.
-  for (MachineBasicBlock &MBB : MF) {
-    if (MBBVector[MBB.getNumber()].Processed) continue;
-    updateSuccCFAInfo(MBBVector[MBB.getNumber()]);
-  }
+  updateSuccCFAInfo(MBBVector[MF.front().getNumber()]);
 }
 
 void CFIInstrInserter::calculateOutgoingCFAInfo(MBBCFAInfo &MBBInfo) {
@@ -280,9 +277,6 @@ void CFIInstrInserter::updateSuccCFAInfo(MBBCFAInfo &MBBInfo) {
   do {
     MachineBasicBlock *Current = Stack.pop_back_val();
     MBBCFAInfo &CurrentInfo = MBBVector[Current->getNumber()];
-    if (CurrentInfo.Processed)
-      continue;
-
     calculateOutgoingCFAInfo(CurrentInfo);
     for (auto *Succ : CurrentInfo.MBB->successors()) {
       MBBCFAInfo &SuccInfo = MBBVector[Succ->getNumber()];