From 6ac3ef950d7d39fd70a8e4d348db7c9ccbad4190 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sat, 16 Oct 2004 18:09:25 +0000
Subject: Add note

llvm-svn: 17043
---
 llvm/lib/Transforms/Scalar/ADCE.cpp | 1 +
 1 file changed, 1 insertion(+)

(limited to 'llvm/lib/Transforms')

diff --git a/llvm/lib/Transforms/Scalar/ADCE.cpp b/llvm/lib/Transforms/Scalar/ADCE.cpp
index 7fafe26d4a9..e1f228d6fab 100644
--- a/llvm/lib/Transforms/Scalar/ADCE.cpp
+++ b/llvm/lib/Transforms/Scalar/ADCE.cpp
@@ -234,6 +234,7 @@ bool ADCE::doADCE() {
         }
       } else if (I->mayWriteToMemory() || isa<ReturnInst>(I) ||
                  isa<UnwindInst>(I)) {
+        // Unreachable instructions are not marked intrinsically live here.
 	markInstructionLive(I);
       } else if (isInstructionTriviallyDead(I)) {
         // Remove the instruction from it's basic block...
-- 
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