RFA: Remove ADDRESS handling from gen*.c

[Richard Sandiford]

ADDRESS has long had no meaning in .md files.  This patch removes
the associated gen* support.

Borders on the obvious, but just to be sure: bootstrapped & regression
tested on x86_64-linux-gnu.  OK to install?

Richard


gcc/
	* genemit.c (gen_exp): Remove ADDRESS handling.
	* genoutput.c (scan_operands): Likewise.
	* genpeep.c (match_rtx): Likewise.
	* genrecog.c (add_to_sequence): Likewise.

Index: gcc/genemit.c
===================================================================
--- gcc/genemit.c	2012-03-06 19:20:53.000000000 +0000
+++ gcc/genemit.c	2012-04-15 10:35:29.615548775 +0100
@@ -160,9 +160,6 @@ gen_exp (rtx x, enum rtx_code subroutine
       gen_rtx_scratch (x, subroutine_type);
       return;
 
-    case ADDRESS:
-      fatal ("ADDRESS expression code used in named instruction pattern");
-
     case PC:
       printf ("pc_rtx");
       return;
Index: gcc/genoutput.c
===================================================================
--- gcc/genoutput.c	2011-08-27 09:54:07.000000000 +0100
+++ gcc/genoutput.c	2012-04-15 10:35:29.617548777 +0100
@@ -510,10 +510,6 @@ scan_operands (struct data *d, rtx part,
 	scan_operands (d, XVECEXP (part, 2, i), 0, 0);
       return;
 
-    case ADDRESS:
-      scan_operands (d, XEXP (part, 0), 1, 0);
-      return;
-
     case STRICT_LOW_PART:
       scan_operands (d, XEXP (part, 0), 0, 1);
       return;
Index: gcc/genpeep.c
===================================================================
--- gcc/genpeep.c	2011-08-27 09:54:07.000000000 +0100
+++ gcc/genpeep.c	2012-04-15 10:35:29.617548777 +0100
@@ -231,10 +231,6 @@ match_rtx (rtx x, struct link *path, int
 	}
       return;
 
-    case ADDRESS:
-      match_rtx (XEXP (x, 0), path, fail_label);
-      return;
-
     default:
       break;
     }
Index: gcc/genrecog.c
===================================================================
--- gcc/genrecog.c	2011-08-27 09:54:07.000000000 +0100
+++ gcc/genrecog.c	2012-04-15 11:14:58.661416813 +0100
@@ -687,7 +687,6 @@ add_to_sequence (rtx pattern, struct dec
   sub = this_decision = new_decision (pos, last);
   place = &this_decision->tests;
 
- restart:
   mode = GET_MODE (pattern);
   code = GET_CODE (pattern);
 
@@ -854,10 +853,6 @@ add_to_sequence (rtx pattern, struct dec
       test->u.dup = XINT (pattern, 0);
       goto fini;
 
-    case ADDRESS:
-      pattern = XEXP (pattern, 0);
-      goto restart;
-
     default:
       break;
     }