[Bug target/89581] Unneeded stack alignment on windows x86

[gabravier at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89581

Gabriel Ravier <gabravier at gmail dot com> changed:

           What    |Removed                     |Added
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                 CC|                            |gabravier at gmail dot com

--- Comment #2 from Gabriel Ravier <gabravier at gmail dot com> ---
I can reproduce this, the code generation seems to have gotten much worse,
here's what I get with -O3 -mavx2 :

f:
  vmovq QWORD PTR [rsp-40], xmm0
  vmovq QWORD PTR [rsp-32], xmm1
  vmovapd xmm5, XMMWORD PTR [rsp-40]
  vmovq QWORD PTR [rsp-24], xmm2
  vmovq QWORD PTR [rsp-16], xmm3
  vaddpd xmm4, xmm5, XMMWORD PTR [rsp-24]
  vmovapd XMMWORD PTR [rsp-40], xmm4
  vmovsd xmm1, QWORD PTR [rsp-32]
  vmovsd xmm0, QWORD PTR [rsp-40]
  ret