[PATCH 1/5] [ARC] Update sleep builtin.

[Claudiu Zissulescu <Claudiu.Zissulescu@synopsys.com>]

From: claziss <claziss@synopsys.com>

gcc/
2017-05-09  Claudiu Zissulescu  <claziss@synopsys.com>

	* config/arc/arc-protos.h (check_if_valid_sleep_operand): Remove.
	* config/arc/arc.c (arc_expand_builtin): Sleep accepts registers
	and short u6 immediate.
	(check_if_valid_sleep_operand): Remove.
	* config/arc/arc.md (Sleep): Accepts registers and u6 immediates.
---
 gcc/config/arc/arc-protos.h |  1 -
 gcc/config/arc/arc.c        | 26 --------------------------
 gcc/config/arc/arc.md       |  4 ++--
 3 files changed, 2 insertions(+), 29 deletions(-)

diff --git a/gcc/config/arc/arc-protos.h b/gcc/config/arc/arc-protos.h
index 75cfeda..0ba6871 100644
--- a/gcc/config/arc/arc-protos.h
+++ b/gcc/config/arc/arc-protos.h
@@ -59,7 +59,6 @@ void arc_asm_output_aligned_decl_local (FILE *, tree, const char *,
 					unsigned HOST_WIDE_INT);
 extern rtx arc_return_addr_rtx (int , rtx);
 extern bool check_if_valid_regno_const (rtx *, int);
-extern bool check_if_valid_sleep_operand (rtx *, int);
 extern bool arc_legitimate_constant_p (machine_mode, rtx);
 extern bool arc_legitimate_pic_addr_p (rtx);
 extern bool arc_raw_symbolic_reference_mentioned_p (rtx, bool);
diff --git a/gcc/config/arc/arc.c b/gcc/config/arc/arc.c
index 3564696..47d3ba4 100644
--- a/gcc/config/arc/arc.c
+++ b/gcc/config/arc/arc.c
@@ -6573,11 +6573,6 @@ arc_expand_builtin (tree exp,
       fold (arg0);
       op0 = expand_expr (arg0, NULL_RTX, VOIDmode, EXPAND_NORMAL);
 
-      if  (!CONST_INT_P (op0) || !satisfies_constraint_L (op0))
-	{
-	  error ("builtin operand should be an unsigned 6-bit value");
-	  return NULL_RTX;
-	}
       gcc_assert (icode != 0);
       emit_insn (GEN_FCN (icode) (op0));
       return NULL_RTX;
@@ -6925,27 +6920,6 @@ check_if_valid_regno_const (rtx *operands, int opno)
   return false;
 }
 
-/* Check that after all the constant folding, whether the operand to
-   __builtin_arc_sleep is an unsigned int of 6 bits.  If not, flag an error.  */
-
-bool
-check_if_valid_sleep_operand (rtx *operands, int opno)
-{
-  switch (GET_CODE (operands[opno]))
-    {
-    case CONST :
-    case CONST_INT :
-	if( UNSIGNED_INT6 (INTVAL (operands[opno])))
-	    return true;
-    /* FALLTHRU */
-    default:
-	fatal_error (input_location,
-		     "operand for sleep instruction must be an unsigned 6 bit compile-time constant");
-	break;
-    }
-  return false;
-}
-
 /* Return true if it is ok to make a tail-call to DECL.  */
 
 static bool
diff --git a/gcc/config/arc/arc.md b/gcc/config/arc/arc.md
index fb34329..2ec2b48 100644
--- a/gcc/config/arc/arc.md
+++ b/gcc/config/arc/arc.md
@@ -4794,9 +4794,9 @@ archs4x, archs4xd, archs4xd_slow"
 
 
 (define_insn "sleep"
-  [(unspec_volatile [(match_operand:SI 0 "immediate_operand" "L")]
+  [(unspec_volatile [(match_operand:SI 0 "nonmemory_operand" "Lr")]
 		   VUNSPEC_ARC_SLEEP)]
-  "check_if_valid_sleep_operand(operands,0)"
+  ""
   "sleep %0"
   [(set_attr "length" "4")
   (set_attr "type" "misc")])
-- 
1.9.1