[FunctionImport] Initialize Reason

MaskRay · MaskRay · commit d0580b855708 · 2023-08-27T19:47:37.000-07:00
Otherwise -print-import-failure may use the uninitialized value.
diff --git a/llvm/lib/Transforms/IPO/FunctionImport.cpp b/llvm/lib/Transforms/IPO/FunctionImport.cpp
@@ -482,7 +482,7 @@ static void computeImportForFunction(
         continue;
       }
 
-      FunctionImporter::ImportFailureReason Reason;
+      FunctionImporter::ImportFailureReason Reason{};
       CalleeSummary = selectCallee(Index, VI.getSummaryList(), NewThreshold,
                                    Summary.modulePath(), Reason);
       if (!CalleeSummary) {

Original file line number	Diff line number	Diff line change
`@@ -482,7 +482,7 @@ static void computeImportForFunction(`
`482`	`482`	`continue;`
`483`	`483`	`}`
`484`	`484`
`485`		`- FunctionImporter::ImportFailureReason Reason;`
	`485`	`+ FunctionImporter::ImportFailureReason Reason{};`
`486`	`486`	`CalleeSummary = selectCallee(Index, VI.getSummaryList(), NewThreshold,`
`487`	`487`	`Summary.modulePath(), Reason);`
`488`	`488`	`if (!CalleeSummary) {`