[ARC] Use hardware support for double-precision compare instructions.

Allow the compiler to use the double-precision compare instructions.

xxxx-xx-xx  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc.md (iterator SDF): Check TARGET_FP_DP_BASE.
	(cstoredi4): Use TARGET_HARD_FLOAT.

From-SVN: r279273

gcc/ChangeLog

+2019-12-12  Claudiu Zissulescu  <claziss@synopsys.com>
+
+	* config/arc/arc.md (iterator SDF): Check TARGET_FP_DP_BASE.
+	(cstoredi4): Use TARGET_HARD_FLOAT.
+
 2019-12-11  Jakub Jelinek  <jakub@redhat.com>
 
 	* opts.c (default_options_table): Move -ftree-loop-distribute-patterns

gcc/config/arc/arc.md

@@ -3747,7 +3747,7 @@ core_3, archs4x, archs4xd, archs4xd_slow"
 })
 
 (define_mode_iterator SDF [(SF "TARGET_FP_SP_BASE || TARGET_OPTFPE")
-			   (DF "TARGET_OPTFPE")])
+			   (DF "TARGET_FP_DP_BASE || TARGET_OPTFPE")])
 
 (define_expand "cstore<mode>4"
   [(set (reg:CC CC_REG)
@@ -3757,7 +3757,7 @@ core_3, archs4x, archs4xd, archs4xd_slow"
 	(match_operator:SI 1 "comparison_operator" [(reg CC_REG)
 						    (const_int 0)]))]
 
-  "TARGET_FP_SP_BASE || TARGET_OPTFPE"
+  "TARGET_HARD_FLOAT || TARGET_OPTFPE"
 {
   gcc_assert (XEXP (operands[1], 0) == operands[2]);
   gcc_assert (XEXP (operands[1], 1) == operands[3]);