sparc.md (divdf3_fix): Add NOP to prevent back to back store errata sensitive…

sparc.md (divdf3_fix): Add NOP to prevent back to back store errata sensitive sequence from being...

	* config/sparc/sparc.md (divdf3_fix): Add NOP to prevent back
	to back store errata sensitive sequence from being generated.
	(sqrtdf2_fix): Likewise.

From-SVN: r250234

gcc/ChangeLog

+2017-07-16  Daniel Cederman  <cederman@gaisler.com>
+
+	* config/sparc/sparc.md (divdf3_fix): Add NOP to prevent back
+	to back store errata sensitive sequence from being generated.
+	(sqrtdf2_fix): Likewise.
+
 2017-07-07  Jan Hubicka  <hubicka@ucw.cz>
 
 	* tree-ssa-threadupdate.c (compute_path_counts,

gcc/config/sparc/sparc.md

@@ -6171,10 +6171,10 @@ visl")
 	(div:DF (match_operand:DF 1 "register_operand" "e")
 		(match_operand:DF 2 "register_operand" "e")))]
   "TARGET_FPU && sparc_fix_ut699"
-  "fdivd\t%1, %2, %0\n\tstd\t%0, [%%sp-8]"
+  "fdivd\t%1, %2, %0\n\tstd\t%0, [%%sp-8]\n\tnop"
   [(set_attr "type" "fpdivd")
    (set_attr "fptype" "double")
-   (set_attr "length" "2")])
+   (set_attr "length" "3")])
 
 (define_insn "divsf3"
   [(set (match_operand:SF 0 "register_operand" "=f")
@@ -6423,10 +6423,10 @@ visl")
   [(set (match_operand:DF 0 "register_operand" "=e")
 	(sqrt:DF (match_operand:DF 1 "register_operand" "e")))]
   "TARGET_FPU && sparc_fix_ut699"
-  "fsqrtd\t%1, %0\n\tstd\t%0, [%%sp-8]"
+  "fsqrtd\t%1, %0\n\tstd\t%0, [%%sp-8]\n\tnop"
   [(set_attr "type" "fpsqrtd")
    (set_attr "fptype" "double")
-   (set_attr "length" "2")])
+   (set_attr "length" "3")])
 
 (define_insn "sqrtsf2"
   [(set (match_operand:SF 0 "register_operand" "=f")