5 ms·

Extremely specific example is uncompelling.

• uecker 2mo ago
  It is a simple counterexample to your incorrect statement.
  • fluoridation 2mo ago
    It's still impossible in the general case, where not all arguments are passable by registers.
    • uecker 2mo ago
      You are right that there are cases where it is not possible. But it also works when arguments are not passed in registers. The condition then is that there are less stack slots used than in the caller. https://godbolt.org/z/M4Eqzh3YE https://godbolt.org/z/M4Eqzh3YE