From 6cae7409b1a108e14de61fe2a0e6b050cff3d8e7 Mon Sep 17 00:00:00 2001
From: Owen Anderson <resistor@mac.com>
Date: Tue, 19 Jun 2007 04:32:55 +0000
Subject: [PATCH] Remember to clear the maximal sets between functions.

Thanks to Nicholas for valgrinding this.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@37646 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/Scalar/GVNPRE.cpp | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/lib/Transforms/Scalar/GVNPRE.cpp b/lib/Transforms/Scalar/GVNPRE.cpp
index 91c1cd4d47b..05a28b3f7db 100644
--- a/lib/Transforms/Scalar/GVNPRE.cpp
+++ b/lib/Transforms/Scalar/GVNPRE.cpp
@@ -297,6 +297,8 @@ ValueTable::Expression ValueTable::create_expression(CmpInst* C) {
 void ValueTable::clear() {
   valueNumbering.clear();
   expressionNumbering.clear();
+  maximalExpressions.clear();
+  maximalValues.clear();
   nextValueNumber = 1;
 }
 
@@ -306,10 +308,9 @@ namespace {
     bool runOnFunction(Function &F);
   public:
     static char ID; // Pass identification, replacement for typeid
-    GVNPRE() : FunctionPass((intptr_t)&ID) { nextValueNumber = 1; }
+    GVNPRE() : FunctionPass((intptr_t)&ID) { }
 
   private:
-    uint32_t nextValueNumber;
     ValueTable VN;
     std::vector<Instruction*> createdExpressions;