From 38b6e8382a44d300b76cfd859e220ca63f5a1fff Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Wed, 2 Aug 2006 00:16:47 +0000
Subject: Add special check to avoid isLoop call.  Simple, but doesn't seem to
 speed up lcssa much in practice.

llvm-svn: 29465
---
 llvm/lib/Transforms/Utils/LCSSA.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'llvm/lib/Transforms/Utils/LCSSA.cpp')

diff --git a/llvm/lib/Transforms/Utils/LCSSA.cpp b/llvm/lib/Transforms/Utils/LCSSA.cpp
index 43c9678cd0b..21f93526373 100644
--- a/llvm/lib/Transforms/Utils/LCSSA.cpp
+++ b/llvm/lib/Transforms/Utils/LCSSA.cpp
@@ -177,7 +177,7 @@ void LCSSA::ProcessInstruction(Instruction *Instr,
     }
     
     // If the user is in the loop, don't rewrite it!
-    if (inLoop(UserBB)) {
+    if (UserBB == Instr->getParent() || inLoop(UserBB)) {
       ++UI;
       continue;
     }
@@ -215,7 +215,7 @@ SetVector<Instruction*> LCSSA::getLoopValuesUsedOutsideLoop(Loop *L) {
           UserBB = p->getIncomingBlock(OperandNo/2);
         }
         
-        if (!inLoop(UserBB)) {
+        if (*BB != UserBB && !inLoop(UserBB)) {
           AffectedValues.insert(I);
           break;
         }
-- 
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