From 1a1a85d5144a2ef13bb14663babe47a8ee1f2f00 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Fri, 14 Feb 2003 04:55:58 +0000
Subject: [PATCH] Don't put integer pointers (longs) into the scalar map. This
 speeds stuff up by 10% on some tests, woot!

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@5564 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Analysis/DataStructure/Local.cpp | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/lib/Analysis/DataStructure/Local.cpp b/lib/Analysis/DataStructure/Local.cpp
index 32d7aea42fa..ffc80e73a6a 100644
--- a/lib/Analysis/DataStructure/Local.cpp
+++ b/lib/Analysis/DataStructure/Local.cpp
@@ -143,6 +143,16 @@ DSGraph::DSGraph(Function &F, DSGraph *GG) : Func(&F), GlobalsGraph(GG) {
 #ifndef NDEBUG
   Timer::addPeakMemoryMeasurement();
 #endif
+
+  // Remove all integral constants from the scalarmap!
+  for (hash_map<Value*, DSNodeHandle>::iterator I = ScalarMap.begin();
+       I != ScalarMap.end();)
+    if (isa<ConstantIntegral>(I->first)) {
+      hash_map<Value*, DSNodeHandle>::iterator J = I++;
+      ScalarMap.erase(J);
+    } else
+      ++I;
+
   markIncompleteNodes(DSGraph::MarkFormalArgs);
 
   // Remove any nodes made dead due to merging...
-- 
2.34.1