[X86] Fix an unused variable warning (NFC)

DamonFool · DamonFool · commit f38ce27c1376 · 2025-03-04T09:34:21.000+08:00
/llvm-project/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp:3090:7:
 error: unused variable 'IndexType' [-Werror,-Wunused-variable]
  EVT IndexType = Index.getValueType();
      ^
1 error generated.
diff --git a/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp b/llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
@@ -3087,7 +3087,7 @@ bool X86DAGToDAGISel::selectLEA64_Addr(SDValue N, SDValue &Base, SDValue &Scale,
     Base = CurDAG->getTargetInsertSubreg(SubReg, DL, MVT::i64, ImplDef, Base);
   }
 
-  EVT IndexType = Index.getValueType();
+  [[maybe_unused]] EVT IndexType = Index.getValueType();
   RN = dyn_cast<RegisterSDNode>(Index);
   if (RN && RN->getReg() == 0)
     Index = CurDAG->getRegister(0, MVT::i64);

Original file line number	Diff line number	Diff line change
`@@ -3087,7 +3087,7 @@ bool X86DAGToDAGISel::selectLEA64_Addr(SDValue N, SDValue &Base, SDValue &Scale,`
`3087`	`3087`	`Base = CurDAG->getTargetInsertSubreg(SubReg, DL, MVT::i64, ImplDef, Base);`
`3088`	`3088`	`}`
`3089`	`3089`
`3090`		`- EVT IndexType = Index.getValueType();`
	`3090`	`+ [[maybe_unused]] EVT IndexType = Index.getValueType();`
`3091`	`3091`	`RN = dyn_cast<RegisterSDNode>(Index);`
`3092`	`3092`	`if (RN && RN->getReg() == 0)`
`3093`	`3093`	`Index = CurDAG->getRegister(0, MVT::i64);`