[Bug c++/121611] Template argument deduction fails with type conversion error for consecutive THUMB functions

[pinskia at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=121611

--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
With the trunk or with -fchecking we get the following ICE:
<source>: In function 'int main()':
<source>:19:22: internal compiler error: canonical types differ for identical
types 'int(SomeClass*)' and 'int(SomeClass*)'
   19 |     func_ptr_template(func_1); // ERROR: template deduction fails
      |     ~~~~~~~~~~~~~~~~~^~~~~~~~