Added missing curly braces which renders the if clause useless in debug build.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@43196 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/TwoAddressInstructionPass.cpp b/lib/CodeGen/TwoAddressInstructionPass.cpp
index 9c32388..53b08d6 100644
--- a/lib/CodeGen/TwoAddressInstructionPass.cpp
+++ b/lib/CodeGen/TwoAddressInstructionPass.cpp
@@ -171,7 +171,7 @@
 
             // If this instruction is potentially convertible to a true
             // three-address instruction,
-            if (TID->Flags & M_CONVERTIBLE_TO_3_ADDR)
+            if (TID->Flags & M_CONVERTIBLE_TO_3_ADDR) {
               // FIXME: This assumes there are no more operands which are tied
               // to another register.
 #ifndef NDEBUG
@@ -188,6 +188,7 @@
                 // Done with this instruction.
                 break;
               }
+            }
           }
 
         InstructionRearranged: