From: Dale Johannesen <dalej@apple.com>
Date: Wed, 4 Mar 2009 21:53:29 +0000 (+0000)
Subject: Add some cautionary comments.
X-Git-Url: http://plrg.eecs.uci.edu/git/?a=commitdiff_plain;h=508d338feed773e20e1ca82ed0ff595f75e33e8b;p=oota-llvm.git

Add some cautionary comments.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@66080 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/include/llvm/Intrinsics.td b/include/llvm/Intrinsics.td
index 6d008f3e3bf..779b64a5008 100644
--- a/include/llvm/Intrinsics.td
+++ b/include/llvm/Intrinsics.td
@@ -260,7 +260,9 @@ let Properties = [IntrNoMem] in {
 //===------------------------ Debugger Intrinsics -------------------------===//
 //
 
-// None of these intrinsics accesses memory at all.
+// None of these intrinsics accesses memory at all...but that doesn't mean the
+// optimizers can change them aggressively.  Special handling needed in a few
+// places.
 let Properties = [IntrNoMem] in {
   def int_dbg_stoppoint    : Intrinsic<[llvm_void_ty],
                                        [llvm_i32_ty, llvm_i32_ty,