From 36e62b1ff7e7aa883f8ea2f236e9c04df6976b59 Mon Sep 17 00:00:00 2001
From: Fangrui Song <i@maskray.me>
Date: Wed, 20 Jan 2021 10:14:10 -0800
Subject: [PATCH] [AArch64] Fix -Wunused-but-set-variable in GCC
 -DLLVM_ENABLE_ASSERTIONS=off build

---
 llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp b/llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp
index 0021456..9619bb4 100644
--- a/llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp
+++ b/llvm/lib/Target/AArch64/GISel/AArch64InstructionSelector.cpp
@@ -865,6 +865,7 @@ static bool selectCopy(MachineInstr &I, const TargetInstrInfo &TII,
 #ifndef NDEBUG
     ValidCopy = KnownValid || isValidCopy(I, DstRegBank, MRI, TRI, RBI);
     assert(ValidCopy && "Invalid copy.");
+    (void)KnownValid;
 #endif
     return ValidCopy;
   };
-- 
2.7.4