[LLVMdev] llc debug info

[徐偉哲]

I can generate debug info using opt like this:
opt < a.bc > /dev/null -mypass -debug

But I don't know how to do it using llc.
I check http://llvm.org/docs/CommandGuide/llc.html
there are not any information about debug flags.

Purpose
EX:
I want to print all the DEBUG(dbgs()......) in
llvm/lib/CodeGen/RegAllocGreedy.cpp .
What should I do?
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