[DAG] Remove unnecessary code

Michael-Chen-NJU · Michael-Chen-NJU · commit c60fccef3fc5 · 2025-10-29T21:18:47.000+08:00
diff --git a/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp b/llvm/lib/CodeGen/SelectionDAG/DAGCombiner.cpp
@@ -18369,8 +18369,7 @@ template <class MatchContextClass> SDValue DAGCombiner::visitFMA(SDNode *N) {
     }
   }
 
-  using namespace SDPatternMatch;
-  SDValue X, Y, Cst;
+  SDValue X, Y;
 
   // (fma 1.0, X, Y) or (fma X, 1.0, Y) -> (fadd X, Y)
   SDValue C1 = DAG.getConstantFP(1.0, DL, VT);

Original file line number	Diff line number	Diff line change
`@@ -18369,8 +18369,7 @@ template <class MatchContextClass> SDValue DAGCombiner::visitFMA(SDNode *N) {`
`18369`	`18369`	`}`
`18370`	`18370`	`}`
`18371`	`18371`
`18372`		`- using namespace SDPatternMatch;`
`18373`		`- SDValue X, Y, Cst;`
	`18372`	`+ SDValue X, Y;`
`18374`	`18373`
`18375`	`18374`	`// (fma 1.0, X, Y) or (fma X, 1.0, Y) -> (fadd X, Y)`
`18376`	`18375`	`SDValue C1 = DAG.getConstantFP(1.0, DL, VT);`