From 0e0642aa7a3f3d3da6a8cd7d323985b5861ff685 Mon Sep 17 00:00:00 2001
From: Rask Ingemann Lambertsen <rask@gcc.gnu.org>
Date: Wed, 20 Jun 2007 19:57:32 +0000
Subject: [PATCH] re PR target/32335 (libgcc build failure, ICE in
 cselib_record_set, at cselib.c:1508)

2007-06-20  Rask Ingemann Lambertsen  <rask@sygehus.dk>

	PR target/32335
	* config/m32c/m32c.c (m32c_emit_epilogue): Use new HImode epilogue
	for TARGET_A16.
	* config/m32c/prologue.md (epilogue_exitd_16): New.
	(epilogue_reit_16): New.
	(epilogue_exitd): Rename to epilogue_exitd_24.
	(epilogue_reit): Rename to epilogue_reit_24.

From-SVN: r125892
---
 gcc/config/m32c/m32c.c      |  9 +++++--
 gcc/config/m32c/prologue.md | 48 +++++++++++++++++++++++++++----------
 2 files changed, 43 insertions(+), 14 deletions(-)

diff --git a/gcc/config/m32c/m32c.c b/gcc/config/m32c/m32c.c
index 097c3a3a83d..161d5edd282 100644
--- a/gcc/config/m32c/m32c.c
+++ b/gcc/config/m32c/m32c.c
@@ -4026,12 +4026,17 @@ m32c_emit_epilogue (void)
       else
 	emit_insn (gen_poppsi (gen_rtx_REG (PSImode, FP_REGNO)));
       emit_insn (gen_popm (GEN_INT (cfun->machine->intr_pushm)));
-      emit_jump_insn (gen_epilogue_reit (GEN_INT (TARGET_A16 ? 4 : 6)));
+      if (TARGET_A16)
+	emit_jump_insn (gen_epilogue_reit_16 ());
+      else
+	emit_jump_insn (gen_epilogue_reit_24 ());
     }
   else if (cfun->machine->use_rts)
     emit_jump_insn (gen_epilogue_rts ());
+  else if (TARGET_A16)
+    emit_jump_insn (gen_epilogue_exitd_16 ());
   else
-    emit_jump_insn (gen_epilogue_exitd (GEN_INT (TARGET_A16 ? 2 : 4)));
+    emit_jump_insn (gen_epilogue_exitd_24 ());
   emit_barrier ();
 }
 
diff --git a/gcc/config/m32c/prologue.md b/gcc/config/m32c/prologue.md
index 81d35a1c965..23a38f0a228 100644
--- a/gcc/config/m32c/prologue.md
+++ b/gcc/config/m32c/prologue.md
@@ -102,26 +102,50 @@
   [(set_attr "flags" "x")]
   )
 
-(define_insn "epilogue_exitd"
-  [(set (reg:PSI SP_REGNO)
-	(plus:PSI (reg:PSI FB_REGNO)
-	      (match_operand 0 "const_int_operand" "i")))
-   (set (reg:PSI FB_REGNO)
-	(mem:PSI (reg:PSI FB_REGNO)))
+(define_insn "epilogue_exitd_16"
+  [(set (reg:HI SP_REGNO)
+	(plus:HI (reg:HI FB_REGNO)
+	      (const_int 2)))
+   (set (reg:HI FB_REGNO)
+	(mem:HI (reg:HI FB_REGNO)))
    (return)
    ]
-  ""
+  "TARGET_A16"
   "exitd"
   [(set_attr "flags" "x")]
   )
 
-(define_insn "epilogue_reit"
-  [(set (reg:PSI SP_REGNO)
-	(plus:PSI (reg:PSI SP_REGNO)
-	      (match_operand 0 "const_int_operand" "i")))
+(define_insn "epilogue_reit_16"
+  [(set (reg:HI SP_REGNO)
+	(plus:HI (reg:HI SP_REGNO)
+	      (const_int 4)))
    (return)
    ]
-  ""
+  "TARGET_A16"
+  "reit"
+  [(set_attr "flags" "x")]
+  )
+
+(define_insn "epilogue_exitd_24"
+  [(set (reg:PSI SP_REGNO)
+	(plus:PSI (reg:PSI FB_REGNO)
+	      (const_int 4)))
+   (set (reg:PSI FB_REGNO)
+	(mem:PSI (reg:PSI FB_REGNO)))
+   (return)
+   ]
+  "TARGET_A24"
+  "exitd"
+  [(set_attr "flags" "x")]
+  )
+
+(define_insn "epilogue_reit_24"
+  [(set (reg:PSI SP_REGNO)
+	(plus:PSI (reg:PSI SP_REGNO)
+	      (const_int 6)))
+   (return)
+   ]
+  "TARGET_A24"
   "reit"
   [(set_attr "flags" "x")]
   )