Unsigned value cannot be < 0.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112300 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
index db580fbf7b163b60694b2d6025b255ca162e479d..2dbfb607739491a398d76136314b7a5fcbfdd7f2 100644 (file)
--- a/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
+++ b/lib/Target/ARM/ARMLoadStoreOptimizer.cpp
@@ -409,7 +409,7 @@ static inline bool isMatchingDecrement(MachineInstr *MI, unsigned Base,
     return false;
 
   // Make sure the offset fits in 8 bits.
-  if (Bytes <= 0 || (Limit && Bytes >= Limit))
+  if (Bytes == 0 || (Limit && Bytes >= Limit))
     return false;
 
   unsigned Scale = (MI->getOpcode() == ARM::tSUBspi) ? 4 : 1; // FIXME
@@ -433,7 +433,7 @@ static inline bool isMatchingIncrement(MachineInstr *MI, unsigned Base,
       MI->getOpcode() != ARM::ADDri)
     return false;
 
-  if (Bytes <= 0 || (Limit && Bytes >= Limit))
+  if (Bytes == 0 || (Limit && Bytes >= Limit))
     // Make sure the offset fits in 8 bits.
     return false;