arc64: add macro to signal Hard-float ABI (gcc-mirror#98)

vineetgarc · artemiy-volkov · commit f8ae75d263e1 · 2024-08-16T10:13:53.000-07:00
This helps guard code in downstream projects such as glibc
related to hard-float regfile save/restore.

Granted we can do this with existing macros:
|
| #if defined(__ARCV3__) &amp;&amp; defined (__ARC_HARD_FLOAT__)
|

keeping it independent of ISA keeps it future safe.

Signed-off-by: Vineet Gupta &lt;vgupta@synopsys.com&gt;
diff --git a/gcc/config/arc64/arc64-c.c b/gcc/config/arc64/arc64-c.c
@@ -67,6 +67,7 @@ arc64_cpu_cpp_builtins (cpp_reader * pfile)
     {
       builtin_define ("__arc_hard_float__");
       builtin_define ("__ARC_HARD_FLOAT__");
+      builtin_define ("__ARC_FLOAT_ABI_HARD__");
     }
   else
     {

Original file line number	Diff line number	Diff line change
`@@ -67,6 +67,7 @@ arc64_cpu_cpp_builtins (cpp_reader * pfile)`
`67`	`67`	`{`
`68`	`68`	`builtin_define ("__arc_hard_float__");`
`69`	`69`	`builtin_define ("__ARC_HARD_FLOAT__");`
	`70`	`+ builtin_define ("__ARC_FLOAT_ABI_HARD__");`
`70`	`71`	`}`
`71`	`72`	`else`
`72`	`73`	`{`