From 269008ee8336bb6519ed714e50fe5bb428b98a51 Mon Sep 17 00:00:00 2001 From: Dan Gohman Date: Mon, 25 Oct 2010 19:47:25 +0000 Subject: [PATCH] Add a comment. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117288 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Analysis/TypeBasedAliasAnalysis.cpp | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/lib/Analysis/TypeBasedAliasAnalysis.cpp b/lib/Analysis/TypeBasedAliasAnalysis.cpp index 65ab70f0b84..9e8f503e4fd 100644 --- a/lib/Analysis/TypeBasedAliasAnalysis.cpp +++ b/lib/Analysis/TypeBasedAliasAnalysis.cpp @@ -31,7 +31,9 @@ // // The second field identifies the type's parent node in the tree, or // is null or omitted for a root node. A type is considered to alias -// all of its decendents and all of its ancestors in the tree. +// all of its decendents and all of its ancestors in the tree. Also, +// a type is considered to alias all types in other trees, so that +// bitcode produced from multiple front-ends is handled conservatively. // // If the third field is present, it's an integer which if equal to 1 // indicates that the type is "constant" (meaning pointsToConstantMemory