Power10: Add missing IEEE 128-bit XSCMP* built-in mappings.

This patch adds support for mapping the scalar_cmp_exp_qp_* built-in functions
to handle arguments that are either TFmode or KFmode, depending on whether long
double uses the IEEE 128-bit representation (TFmode) or the IBM 128-bit
representation (KFmode).  This shows up in the float128-cmp2-runnable.c test
when long double uses the IEEE 128-bit representation.

gcc/
2020-11-20  Michael Meissner  <meissner@linux.ibm.com>

	* config/rs6000/rs6000-call.c (rs6000_expand_builtin): Add missing
	XSCMP* cases for IEEE 128-bit long double.

diff --git a/gcc/config/rs6000/rs6000-call.c b/gcc/config/rs6000/rs6000-call.c
index 3bd89a79bad49f8d75c787ed0274b1a8f9267642..d619e231b09370950785198ad951a9a4c1a75d14 100644 (file)
--- a/gcc/config/rs6000/rs6000-call.c
+++ b/gcc/config/rs6000/rs6000-call.c
@@ -12808,6 +12808,22 @@ rs6000_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED,
       case CODE_FOR_xsiexpqp_kf:       icode = CODE_FOR_xsiexpqp_tf;   break;
       case CODE_FOR_xsiexpqpf_kf:      icode = CODE_FOR_xsiexpqpf_tf;  break;
       case CODE_FOR_xststdcqp_kf:      icode = CODE_FOR_xststdcqp_tf;  break;
+
+      case CODE_FOR_xscmpexpqp_eq_kf:
+       icode = CODE_FOR_xscmpexpqp_eq_tf;
+       break;
+
+      case CODE_FOR_xscmpexpqp_lt_kf:
+       icode = CODE_FOR_xscmpexpqp_lt_tf;
+       break;
+
+      case CODE_FOR_xscmpexpqp_gt_kf:
+       icode = CODE_FOR_xscmpexpqp_gt_tf;
+       break;
+
+      case CODE_FOR_xscmpexpqp_unordered_kf:
+       icode = CODE_FOR_xscmpexpqp_unordered_tf;
+       break;
       }
 
   if (TARGET_DEBUG_BUILTIN)