[LLVMdev] llc debug info

[Duncan P. N. Exon Smith]

Because llvm/lib/CodeGen/RegAllocGreedy.cpp has this line:

    #define DEBUG_TYPE "regalloc"

You can also pass -debug-only=regalloc to only evaluate the DEBUG()
statements in that file.  So you may want to similarly define:

    #define DEBUG_TYPE “mypass"

If your pass is called -mypass.

On 2014 Mar 12, at 11:12, Jim Grosbach <grosbach at apple.com> wrote:

> Have you tried passing -debug?
> 
> On Mar 12, 2014, at 3:57 AM, 徐偉哲 <daniel60602 at gmail.com> wrote:
> 
>> 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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