[llvm-commits] [PATCH] Fix ARM var-arg bug (bug 8347)

[David Meyer]

Hi Evan / Jim,

For reference, X86-64 does the same thing for var-arg (spill registers upon
function entry) and the immutable flag is correctly set to false for the
register save area.

This does limit optimization, but unfortunately it is needed for
correctness. (at least, without making other changes to the backend)

- David M

On Wed, Oct 13, 2010 at 11:59 AM, Jim Grosbach <grosbach at apple.com> wrote:

> Hi David,
>
> Your explanation definitely makes sense. Thanks for digging into this. My
> only hesitation is a, perhaps unfounded, concern that this may be a bit of a
> big hammer and limit other opportunities that are desirable. Evan, what do
> you think?
>
> -Jim
>
> On Oct 13, 2010, at 10:38 AM, David Meyer wrote:
>
> Attached patch resolves this bug:
>
> http://llvm.org/bugs/show_bug.cgi?id=8347
>
> - David M
> <bugfix8347.patch>_______________________________________________
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