Make load_extend_op an inline function

gcc/
	* rtlanal.c (load_extend_op): Move to...
	* rtl.h: ...here and make inline.

From-SVN: r242601

gcc/ChangeLog

+2016-11-18  Richard Sandiford  <richard.sandiford@arm.com>
+
+	* rtlanal.c (load_extend_op): Move to...
+	* rtl.h: ...here and make inline.
+
 2016-11-18  Terry Guo  <terry.guo@arm.com>
 	    Thomas Preud'homme  <thomas.preudhomme@arm.com>
 

gcc/rtl.h

@@ -2954,7 +2954,6 @@ extern void set_insn_deleted (rtx);
 
 /* Functions in rtlanal.c */
 
-extern rtx_code load_extend_op (machine_mode);
 extern rtx single_set_2 (const rtx_insn *, const_rtx);
 extern bool contains_symbol_ref_p (const_rtx);
 extern bool contains_symbolic_reference_p (const_rtx);
@@ -3771,6 +3770,19 @@ struct GTY(()) cgraph_rtl_info {
   unsigned function_used_regs_valid: 1;
 };
 
+/* If loads from memories of mode MODE always sign or zero extend,
+   return SIGN_EXTEND or ZERO_EXTEND as appropriate.  Return UNKNOWN
+   otherwise.  */
+
+inline rtx_code
+load_extend_op (machine_mode mode)
+{
+  if (SCALAR_INT_MODE_P (mode)
+      && GET_MODE_PRECISION (mode) < BITS_PER_WORD)
+    return LOAD_EXTEND_OP (mode);
+  return UNKNOWN;
+}
+
 /* gtype-desc.c.  */
 extern void gt_ggc_mx (rtx &);
 extern void gt_pch_nx (rtx &);

gcc/rtlanal.c

@@ -3863,19 +3863,6 @@ subreg_nregs_with_regno (unsigned int regno, const_rtx x)
   return info.nregs;
 }
 
-/* If loads from memories of mode MODE always sign or zero extend,
-   return SIGN_EXTEND or ZERO_EXTEND as appropriate.  Return UNKNOWN
-   otherwise.  */
-
-rtx_code
-load_extend_op (machine_mode mode)
-{
-  if (SCALAR_INT_MODE_P (mode)
-      && GET_MODE_PRECISION (mode) < BITS_PER_WORD)
-    return LOAD_EXTEND_OP (mode);
-  return UNKNOWN;
-}
-
 struct parms_set_data
 {
   int nregs;