[Bug lto/70955] [6/7 Regression] Wrong code generation for __builtin_ms_va_list with -flto

[vries at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=70955

vries at gcc dot gnu.org changed:

           What    |Removed                     |Added
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                 CC|                            |vries at gcc dot gnu.org

--- Comment #8 from vries at gcc dot gnu.org ---
Created attachment 38453
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=38453&action=edit
tentative patch