[Bug target/91106] internal compiler error: output_operand: invalid use of register 'frame'

[gsocshubham at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91106

--- Comment #2 from Shubham Narlawar <gsocshubham at gmail dot com> ---
(In reply to Richard Biener from comment #1)
> Did you paste the correct reduced testcase?

Here is the original reduced test case obtained from Creduce - 

#pragma pack(1)
struct a {
  int b;
  char c
};
union {
  struct a b
} __attribute__((aligned(32), transparent_union)) d;
e() { f(d); }

I tried to fix warnings by putting semicolon, data type and function
declaration where ever required.