From 3d5ee65b2e605ae4073028e38a87fe438398fb91 Mon Sep 17 00:00:00 2001
From: Nick Clifton <nickc@redhat.com>
Date: Thu, 21 Nov 2002 16:36:52 +0000
Subject: [PATCH] fr30.md (movsf_constant_store): Move code to detect 0.0 into
 fr30.c.

* config/fr30/fr30.md (movsf_constant_store): Move code to detect 0.0 into fr30.c.
* config/fr30/fr30-protos.h (fr30_const_double_is_zero): Prototype.
* config/fr30/fr30.c (fr30_const_double_is_zero): New function.  Return true if the rtx is 0.0.

From-SVN: r59349
---
 gcc/ChangeLog                 |  9 +++++++++
 gcc/config/fr30/fr30-protos.h |  3 ++-
 gcc/config/fr30/fr30.c        | 14 ++++++++++++++
 gcc/config/fr30/fr30.md       | 11 +++--------
 4 files changed, 28 insertions(+), 9 deletions(-)

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5b474d54947..302d13db856 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,12 @@
+2002-11-21  Nick Clifton  <nickc@redhat.com>
+
+	* config/fr30/fr30.md (movsf_constant_store): Move code to
+	detect 0.0 into fr30.c.
+	* config/fr30/fr30-protos.h (fr30_const_double_is_zero):
+	Prototype.
+	* config/fr30/fr30.c (fr30_const_double_is_zero): New
+	function.  Return true if the rtx is 0.0.
+
 2002-11-21  Jason Thorpe  <thorpej@wasabisystems.com>
 
 	* config/arm/elf.h (ASM_SPEC, LINK_SPEC): Pass -EL
diff --git a/gcc/config/fr30/fr30-protos.h b/gcc/config/fr30/fr30-protos.h
index e6d31388767..4aab88c4842 100644
--- a/gcc/config/fr30/fr30-protos.h
+++ b/gcc/config/fr30/fr30-protos.h
@@ -1,5 +1,5 @@
 /* Prototypes for fr30.c functions used in the md file & elsewhere.
-   Copyright (C) 1999, 2000 Free Software Foundation, Inc.
+   Copyright (C) 1999, 2000, 2002 Free Software Foundation, Inc.
 
 This file is part of GNU CC.
 
@@ -39,6 +39,7 @@ extern int   low_register_operand       PARAMS ((rtx, Mmode));
 extern int   call_operand               PARAMS ((rtx, Mmode));
 extern int   di_operand 		PARAMS ((rtx, Mmode));
 extern int   nonimmediate_di_operand 	PARAMS ((rtx, Mmode));
+extern int   fr30_const_double_is_zero  PARAMS ((rtx));
 #undef Mmode
 #endif /* HAVE_MACHINE_MODES */
 #endif /* RTX_CODE */
diff --git a/gcc/config/fr30/fr30.c b/gcc/config/fr30/fr30.c
index e163f926614..d01d6bd1610 100644
--- a/gcc/config/fr30/fr30.c
+++ b/gcc/config/fr30/fr30.c
@@ -951,6 +951,20 @@ fr30_check_multiple_regs (operands, num_operands, descending)
   return 1;
 }
 
+int
+fr30_const_double_is_zero (operand)
+     rtx operand;
+{
+  REAL_VALUE_TYPE d;
+
+  if (operand == NULL || GET_CODE (operand) != CONST_DOUBLE)
+    return 0;
+
+  REAL_VALUE_FROM_CONST_DOUBLE (d, operand);
+
+  return REAL_VALUES_EQUAL (d, dconst0);
+}
+
 /*}}}*/
 /*{{{  Instruction Output Routines  */
 
diff --git a/gcc/config/fr30/fr30.md b/gcc/config/fr30/fr30.md
index b78e99d96a1..b19f6558057 100644
--- a/gcc/config/fr30/fr30.md
+++ b/gcc/config/fr30/fr30.md
@@ -1,5 +1,5 @@
 ;; FR30 machine description.
-;; Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
+;; Copyright (C) 1998, 1999, 2000, 2002 Free Software Foundation, Inc.
 ;; Contributed by Cygnus Solutions.
 
 ;; This file is part of GNU CC.
@@ -571,14 +571,9 @@
   const char *    ldi_instr;
   const char *    tmp_reg;
   static char     buffer[100];
-  REAL_VALUE_TYPE d;
 
-  REAL_VALUE_FROM_CONST_DOUBLE (d, operands[1]);
-  
-  if (REAL_VALUES_EQUAL (d, dconst0))
-    ldi_instr = \"ldi:8\";
-  else
-    ldi_instr = \"ldi:32\";
+  ldi_instr = fr30_const_double_is_zero (operands[1])
+	    ? ldi_instr = \"ldi:8\" : \"ldi:32\";
 
   tmp_reg = reg_names [COMPILER_SCRATCH_REGISTER];