From 828557b1347c429e71c571d934f51d768c212999 Mon Sep 17 00:00:00 2001
From: Peter Collingbourne <peter@pcc.me.uk>
Date: Mon, 26 Mar 2012 21:52:47 +0000
Subject: STPBuilder: fix getShiftBits properly.

git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@153475 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Solver/STPBuilder.h | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'lib')

diff --git a/lib/Solver/STPBuilder.h b/lib/Solver/STPBuilder.h
index 7cc026bc..2b34c911 100644
--- a/lib/Solver/STPBuilder.h
+++ b/lib/Solver/STPBuilder.h
@@ -73,7 +73,11 @@ class STPBuilder {
 
 private:
   unsigned getShiftBits(unsigned amount) {
-    return (amount > 32) ? 6 : 5;
+    unsigned bits = 1;
+    amount--;
+    while (amount >>= 1)
+      bits++;
+    return bits;
   }
 
   ExprHandle bvOne(unsigned width);
-- 
cgit 1.4.1