> gcc/ChangeLog:
>
> 2017-03-02 Robin Dapp
>
> * config/s390/s390.c (s390_asm_output_function_label): Use nopr %r0.
> * config/s390/s390.md: Likewise.
>
> gcc/testsuite/ChangeLog:
>
> 2017-03-02 Robin Dapp
>
> * gcc.target/s390/hotpatch-1.c: Check for nopr %r0.
>
Hi,
the following patch changes "nopr %r7" to "nopr %r0" which is
advantageous from a hardware perspective. It will only be emitted for
hotpatching and should not impact normal code.
Bootstrapped and regression tested on s390 and s390x.
Regards
Robin
gcc/ChangeLog:
2017-03-02 Robin Dapp