Fix Wunused-variable warning. NFC.

RKSimon · RKSimon · commit 29b20829cc6c · 2023-10-09T10:26:01.000+01:00
diff --git a/llvm/lib/Target/AMDGPU/SIISelLowering.cpp b/llvm/lib/Target/AMDGPU/SIISelLowering.cpp
@@ -10866,7 +10866,7 @@ calculateSrcByte(const SDValue Op, uint64_t DestByte, uint64_t SrcIndex = 0,
   }
 
   default: {
-    if (auto A = dyn_cast<AtomicSDNode>(Op) || Op->isMemIntrinsic()) {
+    if (isa<AtomicSDNode>(Op) || Op->isMemIntrinsic()) {
       // If this causes us to throw away signedness info, then fail.
       if (IsSigned)
         return std::nullopt;

Original file line number	Diff line number	Diff line change
`@@ -10866,7 +10866,7 @@ calculateSrcByte(const SDValue Op, uint64_t DestByte, uint64_t SrcIndex = 0,`
`10866`	`10866`	`}`
`10867`	`10867`
`10868`	`10868`	`default: {`
`10869`		`- if (auto A = dyn_cast<AtomicSDNode>(Op) \|\| Op->isMemIntrinsic()) {`
	`10869`	`+ if (isa<AtomicSDNode>(Op) \|\| Op->isMemIntrinsic()) {`
`10870`	`10870`	`// If this causes us to throw away signedness info, then fail.`
`10871`	`10871`	`if (IsSigned)`
`10872`	`10872`	`return std::nullopt;`