[LiveDebugValues][NFC] Silence an unused variable warning

On release builds, 'MI' isn't used by anything (it's already inserted into a
block by BuildMI), while on non-release builds it's used by a LLVM_DEBUG
statement. Mark as explicitly used to avoid the warning.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@370870 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/CodeGen/LiveDebugValues.cpp b/lib/CodeGen/LiveDebugValues.cpp
index ea5512fc369b8a7dee2e7c5163fe2288458d2066..48f361659f1b533239a0d5eb20a19c49c0e54f57 100644 (file)
--- a/lib/CodeGen/LiveDebugValues.cpp
+++ b/lib/CodeGen/LiveDebugValues.cpp
@@ -1172,6 +1172,7 @@ void LiveDebugValues::flushPendingLocs(VarLocInMBB &PendingInLocs,
                      DebugInstr->getDesc(), IsIndirect, Reg,
                      DebugInstr->getDebugVariable(), DebugExpr);
       }
+      (void)MI;
       LLVM_DEBUG(dbgs() << "Inserted: "; MI->dump(););
     }
   }