llvm dev - Apr 2013 - [LLVMdev] New Register allocation algorithm

Hi,
I wanted to write a new register allocation algorithm. I wrote it the 
same way RegAllocFast has been written and registered it. I added it to 
ForceCodegenLinking struct as well. But after build, it is not listed in 
llc --help. I tried to change the registered name of greedy algorithm to 
something else and that doesnt seem to be reflecting in llc help either.

  Am i supposed to build llvm completely again? Or am i missing something?

Thanks

On Apr 29, 2013, at 10:08 PM, kavitha <kavitha.madhu27 at gmail.com>
wrote:
> Hi,
> I wanted to write a new register allocation algorithm. I wrote it the same
way RegAllocFast has been written and registered it. I added it to
ForceCodegenLinking struct as well. But after build, it is not listed in llc
--help. I tried to change the registered name of greedy algorithm to something
else and that doesnt seem to be reflecting in llc help either.
> 
> Am i supposed to build llvm completely again? Or am i missing something?
RegisterRegAlloc's static initiailizer should  add the command line
option...

static RegisterRegAlloc greedyRegAlloc("greedy", "greedy register
allocator",
                                       createGreedyRegisterAllocator);

make clean is often your friend.

-Andy
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