From: Davide Italiano <davide@freebsd.org>
Date: Thu, 19 Jan 2017 21:07:42 +0000 (+0000)
Subject: [SCCP] Update comment in visitBinaryOp() after recent changes.
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=f3e9b57b208415cdbeea3f950209f79710860536;p=llvm

[SCCP] Update comment in visitBinaryOp() after recent changes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@292519 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Scalar/SCCP.cpp b/lib/Transforms/Scalar/SCCP.cpp
index 34be9069248..9c5fa5c1426 100644
--- a/lib/Transforms/Scalar/SCCP.cpp
+++ b/lib/Transforms/Scalar/SCCP.cpp
@@ -910,9 +910,10 @@ void SCCPSolver::visitBinaryOperator(Instruction &I) {
 
   // Otherwise, one of our operands is overdefined.  Try to produce something
   // better than overdefined with some tricks.
-
-  // If this is an AND or OR with 0 or -1, it doesn't matter that the other
-  // operand is overdefined.
+  // If this is:
+  // -> AND/MUL with 0
+  // -> OR with -1
+  // it doesn't matter that the other operand is overdefined.
   if (I.getOpcode() == Instruction::And || I.getOpcode() == Instruction::Mul ||
       I.getOpcode() == Instruction::Or) {
     LatticeVal *NonOverdefVal = nullptr;