[PATCH] [ARC] Add builtins for identifying floating point support

[Vineet Gupta <Vineet.Gupta1@xxxxxxxxxxxx>]

Currently for hard float we need to check for
 __ARC_FPU_SP__ || __ARC_FPU_DP__ and for soft float inverse of that.
So define single convenience macros for either cases

gcc/
xxxx-xx-xx  Vineet Gupta  <vgupta@synopsyscom>

	* config/arc/arc-c.c (arc_cpu_cpp_builtins): Add
          __arc_hard_float__, __ARC_HARD_FLOAT__,
          __arc_soft_float__, __ARC_SOFT_FLOAT__

Signed-off-by: Vineet Gupta <vgupta@xxxxxxxxxxxx>
---
 gcc/ChangeLog          |  6 ++++++
 gcc/config/arc/arc-c.c | 10 ++++++++++
 2 files changed, 16 insertions(+)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index f3deffc701ff..9237e81aa011 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,9 @@
+2019-11-05  Vineet Gupta  <vgupta@xxxxxxxxxxxx>
+
+	* config/arc/arc-c.c (arc_cpu_cpp_builtins) : Add
+	__arc_hard_float__, __ARC_HARD_FLOAT__,
+	__arc_soft_float__, __ARC_SOFT_FLOAT__
+
 2019-11-05  Martin Sebor  <msebor@xxxxxxxxxx>
 
 	PR middle-end/92333
diff --git a/gcc/config/arc/arc-c.c b/gcc/config/arc/arc-c.c
index cf3340d29c27..1a5ff3e88a67 100644
--- a/gcc/config/arc/arc-c.c
+++ b/gcc/config/arc/arc-c.c
@@ -71,4 +71,14 @@ arc_cpu_cpp_builtins (cpp_reader * pfile)
   if (TARGET_BIG_ENDIAN)
     builtin_define ("__big_endian__");
 
+  if (TARGET_HARD_FLOAT)
+    {
+      builtin_define ("__arc_hard_float__");
+      builtin_define ("__ARC_HARD_FLOAT__");
+    }
+  else
+    {
+      builtin_define ("__arc_soft_float__");
+      builtin_define ("__ARC_SOFT_FLOAT__");
+    }
 }
-- 
2.20.1


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