[cfe-dev] How to forcibly insert placement_new after malloc?

[Yuseok Jeon via cfe-dev]

Hi, all.

I want to insert "placement_new"  after "malloc"  to call the constructor (to initialize vtable ptr) when the allocated object is a polymorphic object.
Could I forcibly insert "placement_new" after "malloc" in the clang level (e.g., modify clang to use "CXXNewEXpr::Create()") without modifying AST tree?
If not, could you please tell me the way?

Best Regards,
Y. Jeon.
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