[Bug target/86547] s390x: Maximum number of LRA assignment passes is achieved (30) when compiling a small inline assembler snippet

[iii at linux dot ibm.com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86547

--- Comment #1 from Ilya Leoshkevich <iii at linux dot ibm.com> ---
I did a bisect and found two relevant commits:

1) c312b100: PR target/83712

Before: error: ‘asm’ operand has impossible constraints
After:  internal compiler error: Segmentation fault

2) eaefe34f: PR target/84876

Before: internal compiler error: Segmentation fault
After:  internal compiler error: Maximum number of LRA assignment passes is
achieved (30)