[LLVMdev] Pass to remove unused functions

[Villmow, Micah]

In order to handle a large vector based math library I link in a fairly
large bitcode file that might or might not be needed. The problem is
that linking in this bitcode file drastically increases the amount of
compile time required. Is there a way to remove all functions that are
not used after this linking pass? Something similar to die but removes
functions from the compilation unit instead of instructions.

 

Thanks,

Micah

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