[PATCH, i386]: Kill LEGITIMIZE_RELOAD_ADDRESS

[PATCH, i386]: Kill LEGITIMIZE_RELOAD_ADDRESS

[Uros Bizjak]

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Hello!

This is just dead code for LRA-enabled target.

2015-04-17  Uros Bizjak  <ubizjak@gmail.com>

    * config/i386/i386.h (LEGITIMIZE_RELOAD_ADDRESS): Remove.
    * config/i386/i386.c (ix86_legitimize_reload_address): Ditto.
    * config/i386/i386-protos.h (ix86_legitimize_reload_address): Ditto.

Bootstrapped, regression tested on x86_64-linux-gnu {,-m32} and
committed to mainline SVN.

Uros.

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Index: config/i386/i386-protos.h
===================================================================
--- config/i386/i386-protos.h	(revision 222181)
+++ config/i386/i386-protos.h	(working copy)
@@ -67,8 +67,6 @@
 extern bool constant_address_p (rtx);
 extern bool legitimate_pic_operand_p (rtx);
 extern bool legitimate_pic_address_disp_p (rtx);
-extern bool ix86_legitimize_reload_address (rtx, machine_mode,
-					    int, int, int);
 extern void print_reg (rtx, int, FILE*);
 extern void ix86_print_operand (FILE *, rtx, int);
 
Index: config/i386/i386.c
===================================================================
--- config/i386/i386.c	(revision 222181)
+++ config/i386/i386.c	(working copy)
@@ -13320,62 +13320,6 @@
   return false;
 }
 
-/* Our implementation of LEGITIMIZE_RELOAD_ADDRESS.  Returns a value to
-   replace the input X, or the original X if no replacement is called for.
-   The output parameter *WIN is 1 if the calling macro should goto WIN,
-   0 if it should not.  */
-
-bool
-ix86_legitimize_reload_address (rtx x, machine_mode, int opnum, int type,
-			       	int)
-{
-  /* Reload can generate:
-
-     (plus:DI (plus:DI (unspec:DI [(const_int 0 [0])] UNSPEC_TP)
-		       (reg:DI 97))
-	      (reg:DI 2 cx))
-
-     This RTX is rejected from ix86_legitimate_address_p due to
-     non-strictness of base register 97.  Following this rejection, 
-     reload pushes all three components into separate registers,
-     creating invalid memory address RTX.
-
-     Following code reloads only the invalid part of the
-     memory address RTX.  */
-
-  if (GET_CODE (x) == PLUS
-      && REG_P (XEXP (x, 1))
-      && GET_CODE (XEXP (x, 0)) == PLUS
-      && REG_P (XEXP (XEXP (x, 0), 1)))
-    {
-      rtx base, index;
-      bool something_reloaded = false;
-
-      base = XEXP (XEXP (x, 0), 1);      
-      if (!REG_OK_FOR_BASE_STRICT_P (base))
-	{
-	  push_reload (base, NULL_RTX, &XEXP (XEXP (x, 0), 1), NULL,
-		       BASE_REG_CLASS, GET_MODE (x), VOIDmode, 0, 0,
-		       opnum, (enum reload_type) type);
-	  something_reloaded = true;
-	}
-
-      index = XEXP (x, 1);
-      if (!REG_OK_FOR_INDEX_STRICT_P (index))
-	{
-	  push_reload (index, NULL_RTX, &XEXP (x, 1), NULL,
-		       INDEX_REG_CLASS, GET_MODE (x), VOIDmode, 0, 0,
-		       opnum, (enum reload_type) type);
-	  something_reloaded = true;
-	}
-
-      gcc_assert (something_reloaded);
-      return true;
-    }
-
-  return false;
-}
-
 /* Determine if op is suitable RTX for an address register.
    Return naked register if a register or a register subreg is
    found, otherwise return NULL_RTX.  */
Index: config/i386/i386.h
===================================================================
--- config/i386/i386.h	(revision 222181)
+++ config/i386/i386.h	(working copy)
@@ -1830,17 +1830,6 @@
 
 #define CONSTANT_ADDRESS_P(X)  constant_address_p (X)
 
-/* Try a machine-dependent way of reloading an illegitimate address
-   operand.  If we find one, push the reload and jump to WIN.  This
-   macro is used in only one place: `find_reloads_address' in reload.c.  */
-
-#define LEGITIMIZE_RELOAD_ADDRESS(X, MODE, OPNUM, TYPE, INDL, WIN)	\
-do {									\
-  if (ix86_legitimize_reload_address ((X), (MODE), (OPNUM),		\
-				      (int)(TYPE), (INDL)))		\
-    goto WIN;								\
-} while (0)
-
 /* If defined, a C expression to determine the base term of address X.
    This macro is used in only one place: `find_base_term' in alias.c.