* config/h8300/h8300-protos.h: Add a prototype for

	h8300_expand_branch.
	* config/h8300/h8300.c (h8300_expand_branch): New.
	* config/h8300/h8300.md (ble, bleu, bge, bgeu, blt, bltu, bgt,
	bgtu, beq, bne): Call h8300_expand_branch().


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@78052 138bc75d-0d04-0410-961f-82ee72b054a4

3 files changed, 35 insertions, 60 deletions

diff --git a/gcc/config/h8300/h8300-protos.h b/gcc/config/h8300/h8300-protos.h
index 4f03f9815f1..7ad2df861cd 100644
--- a/gcc/config/h8300/h8300-protos.h
+++ b/gcc/config/h8300/h8300-protos.h
@@ -45,6 +45,7 @@ extern const char *output_logical_op (enum machine_mode, rtx *);
 extern unsigned int compute_logical_op_length (enum machine_mode,
 					       rtx *);
 extern int compute_logical_op_cc (enum machine_mode, rtx *);
+extern void h8300_expand_branch (enum rtx_code, rtx);
 extern void expand_a_shift (enum machine_mode, int, rtx[]);
 extern int h8300_shift_needs_scratch_p (int, enum machine_mode);
 extern int expand_a_rotate (rtx[]);
diff --git a/gcc/config/h8300/h8300.c b/gcc/config/h8300/h8300.c
index b34ddd32c31..ad509558dba 100644
--- a/gcc/config/h8300/h8300.c
+++ b/gcc/config/h8300/h8300.c
@@ -2675,6 +2675,20 @@ compute_logical_op_cc (enum machine_mode mode, rtx *operands)
   return cc;
 }
 
+/* Expand a conditional branch.  */
+
+void
+h8300_expand_branch (enum rtx_code code, rtx label)
+{
+  rtx tmp;
+
+  tmp = gen_rtx_fmt_ee (code, VOIDmode, cc0_rtx, const0_rtx);
+  tmp = gen_rtx_IF_THEN_ELSE (VOIDmode, tmp,
+			      gen_rtx_LABEL_REF (VOIDmode, label),
+			      pc_rtx);
+  emit_jump_insn (gen_rtx_SET (VOIDmode, pc_rtx, tmp));
+}
+
 /* Shifts.
 
    We devote a fair bit of code to getting efficient shifts since we
diff --git a/gcc/config/h8300/h8300.md b/gcc/config/h8300/h8300.md
index dd77e3279ec..25462cfc1bd 100644
--- a/gcc/config/h8300/h8300.md
+++ b/gcc/config/h8300/h8300.md
@@ -1566,94 +1566,54 @@
 ;; Conditional jump instructions
 
 (define_expand "ble"
-  [(set (pc)
-	(if_then_else (le (cc0)
-			  (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
+  [(match_operand 0 "" "")]
   ""
-  "")
+  "h8300_expand_branch (LE, operands[0]); DONE;")
 
 (define_expand "bleu"
-  [(set (pc)
-	(if_then_else (leu (cc0)
-			   (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
+  [(match_operand 0 "" "")]
   ""
-  "")
+  "h8300_expand_branch (LEU, operands[0]); DONE;")
 
 (define_expand "bge"
-  [(set (pc)
-	(if_then_else (ge (cc0)
-			  (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
+  [(match_operand 0 "" "")]
   ""
-  "")
+  "h8300_expand_branch (GE, operands[0]); DONE;")
 
 (define_expand "bgeu"
-  [(set (pc)
-	(if_then_else (geu (cc0)
-			   (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
+  [(match_operand 0 "" "")]
   ""
-  "")
+  "h8300_expand_branch (GEU, operands[0]); DONE;")
 
 (define_expand "blt"
-  [(set (pc)
-	(if_then_else (lt (cc0)
-			  (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
+  [(match_operand 0 "" "")]
   ""
-  "")
+  "h8300_expand_branch (LT, operands[0]); DONE;")
 
 (define_expand "bltu"
-  [(set (pc)
-	(if_then_else (ltu (cc0)
-			   (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
+  [(match_operand 0 "" "")]
   ""
-  "")
+  "h8300_expand_branch (LTU, operands[0]); DONE;")
 
 (define_expand "bgt"
-  [(set (pc)
-	(if_then_else (gt (cc0)
-			  (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
+  [(match_operand 0 "" "")]
   ""
-  "")
+  "h8300_expand_branch (GT, operands[0]); DONE;")
 
 (define_expand "bgtu"
-  [(set (pc)
-	(if_then_else (gtu (cc0)
-			   (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
+  [(match_operand 0 "" "")]
   ""
-  "")
+  "h8300_expand_branch (GTU, operands[0]); DONE;")
 
 (define_expand "beq"
-  [(set (pc)
-	(if_then_else (eq (cc0)
-			  (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
+  [(match_operand 0 "" "")]
   ""
-  "")
+  "h8300_expand_branch (EQ, operands[0]); DONE;")
 
 (define_expand "bne"
-  [(set (pc)
-	(if_then_else (ne (cc0)
-			  (const_int 0))
-		      (label_ref (match_operand 0 "" ""))
-		      (pc)))]
+  [(match_operand 0 "" "")]
   ""
-  "")
+  "h8300_expand_branch (NE, operands[0]); DONE;")
 
 (define_insn "branch_true"
   [(set (pc)