llvm dev - Jul 2010 - [LLVMdev] Preserving BBs of bitcode to target binary

Hi, all

I wonder whether I can preserve basic blocks of llvm-bc when it is compiled to
the target(x86) binary.

for instance, 

#llc --march=x86 test1.bc -o test1.s
#llvm-gcc -O0 -o test1 test1.s

then, can BBs from output binary of 'test1' find their correspondents
from 'test1.bc' and vice versa?

What I eventually want to find out is 1-1 mapping of BBs between llvm-bc and
generated target binary.
If anyone can tell me how can I do this it will be very grateful. 

Thanks for your help, in advance
Regards, Kangkook
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There isn't always going to be a 1-1 mapping. Machine-level passes and a
variety of other things can add and remove basic blocks, even at -O0.

-Jim

On Jul 9, 2010, at 2:03 PM, Kangkook Jee wrote:
> Hi, all
> 
> I wonder whether I can preserve basic blocks of llvm-bc when it is compiled
to the target(x86) binary.
> 
> for instance, 
> 
> #llc --march=x86 test1.bc -o test1.s
> #llvm-gcc -O0 -o test1 test1.s
> 
> then, can BBs from output binary of 'test1' find their
correspondents from 'test1.bc' and vice versa?
> 
> What I eventually want to find out is 1-1 mapping of BBs between llvm-bc
and generated target binary.
> If anyone can tell me how can I do this it will be very grateful. 
> 
> Thanks for your help, in advance
> Regards, Kangkook
> _______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
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