[MOXIE] Hookize GO_IF_LEGITIMATE_ADDRESS

[Anatoliy Sokolov]

Hi.

This patch removes obsolete GO_IF_LEGITIMATE_ADDRESS macros from
the MOXIE back end in the GCC and introduces equivalent
TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P target hook.

Regression tested on moxie-unknown-elf.

OK for trunk?

2015-07-05  Anatoly Sokolov  <aesok@post.ru>

	* config/moxie/moxie.h (GO_IF_LEGITIMATE_ADDRESS): Remove macros.
	* config/moxie/moxie.c (moxie_reg_ok_for_base_p,
	  moxie_legitimate_address_p): New functions.
	  (TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P): Define.

Index: gcc/config/moxie/moxie.c
===================================================================
--- gcc/config/moxie/moxie.c	(revision 225410)
+++ gcc/config/moxie/moxie.c	(working copy)
@@ -595,6 +595,45 @@
    return 0;
  }

+/* Helper function for `moxie_legitimate_address_p'.  */
+
+static bool
+moxie_reg_ok_for_base_p (const_rtx reg, bool strict_p)
+{
+  int regno = REGNO (reg);
+
+  if (strict_p)
+    return HARD_REGNO_OK_FOR_BASE_P (regno)
+	   || HARD_REGNO_OK_FOR_BASE_P (reg_renumber[regno]);
+  else
+    return !HARD_REGISTER_NUM_P (regno)
+	   || HARD_REGNO_OK_FOR_BASE_P (regno);
+}
+
+/* Worker function for TARGET_LEGITIMATE_ADDRESS_P.  */
+
+static bool
+moxie_legitimate_address_p (machine_mode mode ATTRIBUTE_UNUSED,
+			    rtx x, bool strict_p,
+			    addr_space_t as)
+{
+  gcc_assert (ADDR_SPACE_GENERIC_P (as));
+
+  if (GET_CODE(x) == PLUS
+      && REG_P (XEXP (x, 0))
+      && moxie_reg_ok_for_base_p (XEXP (x, 0), strict_p)
+      && CONST_INT_P (XEXP (x, 1))
+      && IN_RANGE (INTVAL (XEXP (x, 1)), -32768, 32767))
+    return true;
+  if (REG_P (x) && moxie_reg_ok_for_base_p (x, strict_p))
+    return true;
+  if (GET_CODE (x) == SYMBOL_REF
+      || GET_CODE (x) == LABEL_REF
+      || GET_CODE (x) == CONST)
+    return true;
+  return false;
+}
+
  /* The Global `targetm' Variable.  */

  /* Initialize the GCC target structure.  */
@@ -615,6 +654,8 @@
  #undef  TARGET_FUNCTION_ARG_ADVANCE
  #define TARGET_FUNCTION_ARG_ADVANCE	moxie_function_arg_advance

+#undef  TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P
+#define TARGET_ADDR_SPACE_LEGITIMATE_ADDRESS_P	moxie_legitimate_address_p

  #undef  TARGET_SETUP_INCOMING_VARARGS
  #define TARGET_SETUP_INCOMING_VARARGS 	moxie_setup_incoming_varargs
Index: gcc/config/moxie/moxie.h
===================================================================
--- gcc/config/moxie/moxie.h	(revision 225410)
+++ gcc/config/moxie/moxie.h	(working copy)
@@ -451,30 +451,6 @@
     elements of a jump-table should have.  */
  #define CASE_VECTOR_MODE SImode

-/* A C compound statement with a conditional `goto LABEL;' executed
-   if X (an RTX) is a legitimate memory address on the target machine
-   for a memory operand of mode MODE.  */
-#define GO_IF_LEGITIMATE_ADDRESS(MODE,X,LABEL)		\
-  do {                                                  \
-    if (GET_CODE(X) == PLUS)				\
-      {							\
-	rtx op1,op2;					\
-	op1 = XEXP(X,0);				\
-	op2 = XEXP(X,1);				\
-	if (GET_CODE(op1) == REG			\
-	    && GET_CODE(op2) == CONST_INT 		\
-	    && IN_RANGE (INTVAL (op2), -32768, 32767)	\
-	    && REGNO_OK_FOR_BASE_P(REGNO(op1)))		\
-	  goto LABEL;					\
-      }							\
-    if (REG_P (X) && REGNO_OK_FOR_BASE_P (REGNO (X)))	\
-      goto LABEL;					\
-    if (GET_CODE (X) == SYMBOL_REF			\
-	|| GET_CODE (X) == LABEL_REF			\
-	|| GET_CODE (X) == CONST)			\
-      goto LABEL;					\
-  } while (0)
-
  /* Run-time Target Specification */

  #define TARGET_CPU_CPP_BUILTINS() \

Anatoly.