Memoize CGFunctionInfo construction.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@63576 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGCall.cpp b/lib/CodeGen/CGCall.cpp
index 898c780..30257d2 100644
--- a/lib/CodeGen/CGCall.cpp
+++ b/lib/CodeGen/CGCall.cpp
@@ -86,7 +86,18 @@
const CGFunctionInfo &CodeGenTypes::getFunctionInfo(QualType ResTy,
const llvm::SmallVector<QualType, 16> &ArgTys) {
- return *new CGFunctionInfo(ResTy, ArgTys);
+ // Lookup or create unique function info.
+ llvm::FoldingSetNodeID ID;
+ CGFunctionInfo::Profile(ID, ResTy, ArgTys.begin(), ArgTys.end());
+
+ void *InsertPos = 0;
+ CGFunctionInfo *FI = FunctionInfos.FindNodeOrInsertPos(ID, InsertPos);
+ if (FI)
+ return *FI;
+
+ FI = new CGFunctionInfo(ResTy, ArgTys);
+ FunctionInfos.InsertNode(FI, InsertPos);
+ return *FI;
}
/***/