[Bug target/107606] rs6000: Option not to use parameter save area in variadic function implementations

[segher at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107606

--- Comment #1 from Segher Boessenkool <segher at gcc dot gnu.org> ---
Hi Florian,

What do you want such an option to do?  The PSA is used only when it is needed,
do you want to have the compiler error out in such cases?  This is very
unpredictable to the user, so it should be clearly marked as just a debug aid
(in documentation and such).

Or what else is the intention?  Do you have an example of something that was
hard to debug, maybe?