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2012 Mar 02
0
[LLVMdev] Stack alignment on X86 AVX seems incorrect
Joerg,
> At least for 32bit x86 reserving another register as alternative frame
> pointer is very heavy. The above would allow normal spill logic to
> decide when to keep a reference in register and when not. It also reuses
> existing functionality as much as possible.
It does not seem to be enough. Even is there are *no* allocas in the
function the stack realignment might still be
2012 Mar 02
2
[LLVMdev] Stack alignment on X86 AVX seems incorrect
On Fri, Mar 02, 2012 at 12:18:19AM -0300, Bruno Cardoso Lopes wrote:
> Hi Elena,
>
> On Thu, Mar 1, 2012 at 8:28 PM, Demikhovsky, Elena
> <elena.demikhovsky at intel.com> wrote:
> > Even if you explicitly specify –stack-alignment=16 the aligned movs are
> > still generated.
> >
> > It is not an issue related to ABI.
>
> This looks like PR10841,