[RS6000] Built-in __PCREL__ define
authorAlan Modra <amodra@gmail.com>
Wed, 23 Sep 2020 10:45:39 +0000 (20:15 +0930)
committerAlan Modra <amodra@gmail.com>
Thu, 24 Sep 2020 02:10:02 +0000 (11:40 +0930)
commit677b9150f54a0483d3de1182ac40717b7c4431a5
treef96d51759ace552cccf159cd1f86378ba6b8bc90
parent199baa71f7a6c8f255afdda03cd3b2644f8f0fcd
[RS6000] Built-in __PCREL__ define

Useful in assembly to know details of power10 function calls.

* config/rs6000/rs6000-c.c (rs6000_target_modify_macros):
Conditionally define __PCREL__.
gcc/config/rs6000/rs6000-c.c