From: Chris Lattner <sabre@nondot.org>
Date: Sun, 12 Oct 2003 19:33:10 +0000 (+0000)
Subject: The preheader insertion pass only depends on the CFG.  Mark it as such, which
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=bebd86d58eea8839691785a08917040751334083;p=oota-llvm.git

The preheader insertion pass only depends on the CFG.  Mark it as such, which
allows GCCAS to only run it once.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@9056 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/Utils/LoopSimplify.cpp b/lib/Transforms/Utils/LoopSimplify.cpp
index 3c77b01a86a..fb57a2318ab 100644
--- a/lib/Transforms/Utils/LoopSimplify.cpp
+++ b/lib/Transforms/Utils/LoopSimplify.cpp
@@ -56,7 +56,8 @@ namespace {
     void InsertPreheaderForLoop(Loop *L);
   };
 
-  RegisterOpt<Preheaders> X("preheaders", "Natural loop pre-header insertion");
+  RegisterOpt<Preheaders> X("preheaders", "Natural loop pre-header insertion",
+                            true);
 }
 
 // Publically exposed interface to pass...