[LLVMdev] [PATCH] Add a GCModuleInfo field to MachineFunction

[nicolas geoffray]

Hi all,

This patch adds a GCModuleInfo field to the MachineFunction class, to
facilitate the retrieval of a potential GCFunctionInfo attached to the
function. The motivation for the change is to get access in a proper way to
the GC info when generating the function with the JIT. Currently, retrieving
this information requires a lot of hacks (eg VMKit's code
lib/J3/Compiler/JavaJITCompiler.cpp).

Because a MachineInfo object is temporary, I believe it is fine to add a
field there. OK to apply?

Thanks,
Nicolas
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