re PR target/64833 ([SH]: Error: pcrel too far when compiling imagemagick and…

re PR target/64833 ([SH]: Error: pcrel too far when compiling imagemagick and graphicsmagick on Debian sh4)

PR target/64833
* [SH] Set length of casesi_worker_1 insn to 8 when flag_pic is set.

From-SVN: r225219

gcc/ChangeLog

+2015-06-30  Kaz Kojima  <kkojima@gcc.gnu.org>
+
+	PR target/64833
+	* config/sh/sh.md (casesi_worker_1): Set length to 8 when
+	flag_pic is set.
+
 2015-06-30  Eric Botcazou  <ebotcazou@adacore.com>
 
 	* lto-streamer-out.c (class DFS): Adjust hash_scc method.

gcc/config/sh/sh.md

@@ -11344,6 +11344,8 @@ label:
     LABEL_NUSES (operands[2])++;
 })
 
+;; This may be replaced with casesi_worker_2 in sh_reorg for PIC.
+;; The insn length is set to 8 for that case.
 (define_insn "casesi_worker_1"
   [(set (match_operand:SI 0 "register_operand" "=r,r")
 	(unspec:SI [(reg:SI R0_REG)
@@ -11375,7 +11377,9 @@ label:
       gcc_unreachable ();
     }
 }
-  [(set_attr "length" "4")])
+  [(set_attr_alternative "length"
+     [(if_then_else (match_test "flag_pic") (const_int 8) (const_int 4))
+      (if_then_else (match_test "flag_pic") (const_int 8) (const_int 4))])])
 
 (define_insn "casesi_worker_2"
   [(set (match_operand:SI 0 "register_operand" "=r,r")