From: Jim Grosbach <grosbach@apple.com>
Date: Fri, 1 Jul 2011 19:07:09 +0000 (+0000)
Subject: Fix off-by-one error.
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=eb03c3b22861e5fb6459aa055378e852df29b621;p=oota-llvm.git

Fix off-by-one error.

(low two bits always zero, so off by one bit of encoded value).

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134247 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/ARM/Thumb2SizeReduction.cpp b/lib/Target/ARM/Thumb2SizeReduction.cpp
index 692189ce6c7..c741a6e8a5b 100644
--- a/lib/Target/ARM/Thumb2SizeReduction.cpp
+++ b/lib/Target/ARM/Thumb2SizeReduction.cpp
@@ -491,7 +491,7 @@ Thumb2SizeReduce::ReduceSpecial(MachineBasicBlock &MBB, MachineInstr *MI,
     // The immediate must be in range, the destination register must be a low
     // reg, the predicate must be "always" and the condition flags must not
     // be being set.
-    if (Imm & 3 || Imm > 1024)
+    if (Imm & 3 || Imm > 1020)
       return false;
     if (!isARMLowRegister(MI->getOperand(0).getReg()))
       return false;