[llvm] 34547ac - NFC. Comments cleanup in DSE::memoryIsNotModifiedBetween

[Artur Pilipenko via llvm-commits]

Author: Artur Pilipenko
Date: 2020-01-31T15:22:33-08:00
New Revision: 34547ac9594d872fbd6235192c98f180962d15bb

URL: https://github.com/llvm/llvm-project/commit/34547ac9594d872fbd6235192c98f180962d15bb
DIFF: https://github.com/llvm/llvm-project/commit/34547ac9594d872fbd6235192c98f180962d15bb.diff

LOG: NFC. Comments cleanup in DSE::memoryIsNotModifiedBetween

Separated from https://reviews.llvm.org/D68006 review.

Added: 
    

Modified: 
    llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp

Removed: 
    


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diff  --git a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
index 1ba4aab999e1..2dd429612dac 100644
--- a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
@@ -607,26 +607,26 @@ static bool memoryIsNotModifiedBetween(Instruction *FirstI,
   BasicBlock *SecondBB = SecondI->getParent();
   MemoryLocation MemLoc = MemoryLocation::get(SecondI);
 
-  // Start checking the store-block.
+  // Start checking the SecondBB.
   WorkList.push_back(SecondBB);
   bool isFirstBlock = true;
 
-  // Check all blocks going backward until we reach the load-block.
+  // Check all blocks going backward until we reach the FirstBB.
   while (!WorkList.empty()) {
     BasicBlock *B = WorkList.pop_back_val();
 
-    // Ignore instructions before LI if this is the FirstBB.
+    // Ignore instructions before FirstI if this is the FirstBB.
     BasicBlock::iterator BI = (B == FirstBB ? FirstBBI : B->begin());
 
     BasicBlock::iterator EI;
     if (isFirstBlock) {
-      // Ignore instructions after SI if this is the first visit of SecondBB.
+      // Ignore instructions after SecondI if this is the first visit of SecondBB.
       assert(B == SecondBB && "first block is not the store block");
       EI = SecondBBI;
       isFirstBlock = false;
     } else {
       // It's not SecondBB or (in case of a loop) the second visit of SecondBB.
-      // In this case we also have to look at instructions after SI.
+      // In this case we also have to look at instructions after SecondI.
       EI = B->end();
     }
     for (; BI != EI; ++BI) {