From: Nikita Popov <nikita.ppv@gmail.com>
Date: Sat, 22 Jun 2019 10:20:07 +0000 (+0000)
Subject: [NewGVN] Remove dead SwitchEdges variable; NFC
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=41cd32ae3afb28f86a62a1234c8bf4784105c24e;p=llvm

[NewGVN] Remove dead SwitchEdges variable; NFC

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@364129 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Scalar/NewGVN.cpp b/lib/Transforms/Scalar/NewGVN.cpp
index 412bd235d79..efae272f69a 100644
--- a/lib/Transforms/Scalar/NewGVN.cpp
+++ b/lib/Transforms/Scalar/NewGVN.cpp
@@ -2498,9 +2498,6 @@ void NewGVN::processOutgoingEdges(Instruction *TI, BasicBlock *B) {
     // For switches, propagate the case values into the case
     // destinations.
 
-    // Remember how many outgoing edges there are to every successor.
-    SmallDenseMap<BasicBlock *, unsigned, 16> SwitchEdges;
-
     Value *SwitchCond = SI->getCondition();
     Value *CondEvaluated = findConditionEquivalence(SwitchCond);
     // See if we were able to turn this switch statement into a constant.
@@ -2521,7 +2518,6 @@ void NewGVN::processOutgoingEdges(Instruction *TI, BasicBlock *B) {
     } else {
       for (unsigned i = 0, e = SI->getNumSuccessors(); i != e; ++i) {
         BasicBlock *TargetBlock = SI->getSuccessor(i);
-        ++SwitchEdges[TargetBlock];
         updateReachableEdge(B, TargetBlock);
       }
     }