From: Alan Modra <amodra@bigpond.net.au>
Date: Thu, 27 Feb 2003 02:08:01 +0000 (+0000)
Subject: * config/rs6000/rs6000.md: Add TI constant splitter.
X-Git-Tag: releases/gcc-3.2.3~153
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e183e1d178f64e33e1eb76778f897e011140661a;p=thirdparty%2Fgcc.git

* config/rs6000/rs6000.md: Add TI constant splitter.

From-SVN: r63500
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 5e105b7a9b90..bb41154605ea 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2003-02-27  Alan Modra  <amodra@bigpond.net.au>
+
+	* config/rs6000/rs6000.md: Add TI constant splitter.
+
 2003-02-26  Jan Hubicka  <jh@suse.cz>
 
 	PR target/8343
diff --git a/gcc/config/rs6000/rs6000.md b/gcc/config/rs6000/rs6000.md
index ec16c1918637..55612be09328 100644
--- a/gcc/config/rs6000/rs6000.md
+++ b/gcc/config/rs6000/rs6000.md
@@ -8439,6 +8439,32 @@
   operands[5] = GEN_INT (CONST_DOUBLE_LOW  (operands[1]));
 }")
 
+(define_split
+  [(set (match_operand:TI 0 "gpc_reg_operand" "")
+	(match_operand:TI 1 "const_double_operand" ""))]
+  "TARGET_POWERPC64"
+  [(set (match_dup 2) (match_dup 4))
+   (set (match_dup 3) (match_dup 5))]
+  "
+{
+  operands[2] = operand_subword_force (operands[0], WORDS_BIG_ENDIAN == 0,
+				       TImode);
+  operands[3] = operand_subword_force (operands[0], WORDS_BIG_ENDIAN != 0,
+				       TImode);
+  if (GET_CODE (operands[1]) == CONST_DOUBLE)
+    {
+      operands[4] = GEN_INT (CONST_DOUBLE_HIGH (operands[1]));
+      operands[5] = GEN_INT (CONST_DOUBLE_LOW (operands[1]));
+    }
+  else if (GET_CODE (operands[1]) == CONST_INT)
+    {
+      operands[4] = GEN_INT (- (INTVAL (operands[1]) < 0));
+      operands[5] = operands[1];
+    }
+  else
+    FAIL;
+}")
+
 (define_insn "*movdi_internal64"
   [(set (match_operand:DI 0 "nonimmediate_operand" "=r,r,m,r,r,r,r,f,f,m,r,*h,*h")
 	(match_operand:DI 1 "input_operand" "r,m,r,I,L,nF,R,f,m,f,*h,r,0"))]