From 818d42f1e81db75300223fedb75227c17ec0ef83 Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Tue, 13 Feb 2007 01:05:56 +0000
Subject: [PATCH] Fix switch lowering to order cases in zext order, which is
 how we emit the comparisons.  This fixes an infinite loop on
 CodeGen/Generic/switch-lower.ll and PR1197

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@34216 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
index 16d25ee2259..0dd762e58d2 100644
--- a/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
+++ b/lib/CodeGen/SelectionDAG/SelectionDAGISel.cpp
@@ -389,8 +389,8 @@ class SelectionDAGLowering {
   struct CaseCmp {
     bool operator () (const Case& C1, const Case& C2) {
       assert(isa<ConstantInt>(C1.first) && isa<ConstantInt>(C2.first));
-      return cast<const ConstantInt>(C1.first)->getSExtValue() <
-        cast<const ConstantInt>(C2.first)->getSExtValue();
+      return cast<const ConstantInt>(C1.first)->getZExtValue() <
+        cast<const ConstantInt>(C2.first)->getZExtValue();
     }
   };