[Bug target/86340] GCC 8.1 produces broken code for m68k with optimization levels above -O1

[mikpelinux at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86340

Mikael Pettersson <mikpelinux at gmail dot com> changed:

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--- Comment #4 from Mikael Pettersson <mikpelinux at gmail dot com> ---
Created attachment 44737
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44737&action=edit
reduced test case

With this reduced test case I get the same code as for the unreduced one, with
a cross to m68k-linux with options -fomit-frame-pointer -Os -Wall.

The test case receives parameters via hard registers in a way that looks
questionable to me.  Changing it to normal parameter passing avoids the wrong
code.