SILoadStoreOptimizer.cpp: Fix a warning in r279991. [-Wunused-variable]

llvm-svn: 280075

diff --git a/llvm/lib/Target/AMDGPU/SILoadStoreOptimizer.cpp b/llvm/lib/Target/AMDGPU/SILoadStoreOptimizer.cpp
index d80b157..fe729cd 100644 (file)
--- a/llvm/lib/Target/AMDGPU/SILoadStoreOptimizer.cpp
+++ b/llvm/lib/Target/AMDGPU/SILoadStoreOptimizer.cpp
@@ -336,6 +336,7 @@ MachineBasicBlock::iterator  SILoadStoreOptimizer::mergeRead2Pair(
     .addImm(0) // gds
     .addMemOperand(*I->memoperands_begin())
     .addMemOperand(*Paired->memoperands_begin());
+  (void)Read2;
 
   const MCInstrDesc &CopyDesc = TII->get(TargetOpcode::COPY);