[LLVMdev] RFC: PowerPC tail call optimization patch

Arnold Schwaighofer arnold.schwaighofer at gmail.com
Wed Apr 16 10:07:50 PDT 2008

Hello Dale,

this is an updated version of the tail call optimization patch for
powerpc. could you have a look at it?

i added code to support ppc64 (untested, will try to get access to
ppc64 on a friend's machine).
incorporated evan's formatting suggestions. ;)

will run another round of testing (llvm-test) on my powerpc g4/800
when i get the okay to commit. testing on this machine takes forever

okay to commit?

regards arnold
On Fri, Mar 28, 2008 at 12:01 AM, Evan Cheng <evan.cheng at apple.com> wrote:
>  On Mar 26, 2008, at 11:29 PM, Arnold Schwaighofer wrote:
>  > Hi there,
>  >
>  > it's me again. attached is preliminary support for tail calls on ppc
>  > 32. (once i get access to a 64bit machine that part will follow). It
>  > has passed the llvm-test with the -tailcallopt flag enabled. (after
>  > half a day on an old g4/800 :)
>  >
>  > okay to submit? probably not. :) suggestions.
>  I can see some stylistic issues. e.g. getFramePointerFrameIndex() etc.
>  should be declared const, also please make sure there is a space
>  between 'if' and '('. But I don't enough about PPC to really pick on
>  it. :-)
>  Dale, can you look through the patch?
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