[SelectionDAG] Fix an unused variable warning

kazutakahirata · kazutakahirata · commit e9fa18878cdf · 2023-10-06T09:27:35.000-07:00
This patch fixes:

  llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp:10832:12: error:
  variable 'Changed' set but not used
  [-Werror,-Wunused-but-set-variable]
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp
@@ -10840,6 +10840,7 @@ void SelectionDAG::salvageDebugInfo(SDNode &N) {
         Changed = true;
       }
       assert(Changed && "Salvage target doesn't use N");
+      (void)Changed;
 
       SDDbgValue *Clone =
           getDbgValueList(DV->getVariable(), DbgExpression, NewLocOps,

Original file line number	Diff line number	Diff line change
`@@ -10840,6 +10840,7 @@ void SelectionDAG::salvageDebugInfo(SDNode &N) {`
`10840`	`10840`	`Changed = true;`
`10841`	`10841`	`}`
`10842`	`10842`	`assert(Changed && "Salvage target doesn't use N");`
	`10843`	`+ (void)Changed;`
`10843`	`10844`
`10844`	`10845`	`SDDbgValue *Clone =`
`10845`	`10846`	`getDbgValueList(DV->getVariable(), DbgExpression, NewLocOps,`