Use try_emplace in GCFunctionAnalysis

paperchalice · paperchalice · commit 916d58e34f13 · 2025-05-14T16:35:55.000+08:00
diff --git a/llvm/lib/CodeGen/GCMetadata.cpp b/llvm/lib/CodeGen/GCMetadata.cpp
@@ -63,7 +63,8 @@ GCFunctionAnalysis::run(Function &F, FunctionAnalysisManager &FAM) {
       "This pass need module analysis `collector-metadata`!");
   auto &Map =
       *MAMProxy.getCachedResult<CollectorMetadataAnalysis>(*F.getParent());
-  GCFunctionInfo Info(F, Map[F.getGC()]);
+  GCStrategy &S = *Map.try_emplace(F.getGC()).first->second;
+  GCFunctionInfo Info(F, S);
   return Info;
 }
 

Original file line number	Diff line number	Diff line change
`@@ -63,7 +63,8 @@ GCFunctionAnalysis::run(Function &F, FunctionAnalysisManager &FAM) {`
`63`	`63`	"This pass need module analysis `collector-metadata`!");
`64`	`64`	`auto &Map =`
`65`	`65`	`MAMProxy.getCachedResult<CollectorMetadataAnalysis>(F.getParent());`
`66`		`- GCFunctionInfo Info(F, Map[F.getGC()]);`
	`66`	`+ GCStrategy &S = *Map.try_emplace(F.getGC()).first->second;`
	`67`	`+ GCFunctionInfo Info(F, S);`
`67`	`68`	`return Info;`
`68`	`69`	`}`
`69`	`70`