From: J"orn Rennecke <joern.rennecke@superh.com>
Date: Wed, 4 Sep 2002 17:49:58 +0000 (+0000)
Subject: combine.c (make_compound_operation): Don't generate zero / sign extensions in floatin... 
X-Git-Tag: releases/gcc-3.3.0~3042
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b10f218708c0cc0f878ff4a474e46196bc30e3b5;p=thirdparty%2Fgcc.git

combine.c (make_compound_operation): Don't generate zero / sign extensions in floating point modes.

	* combine.c (make_compound_operation): Don't generate zero / sign
	extensions in floating point modes.

From-SVN: r56804
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 7f11bb8c16d7..682001bb4917 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+Wed Sep  4 18:48:10 2002  J"orn Rennecke <joern.rennecke@superh.com>
+
+	* combine.c (make_compound_operation): Don't generate zero / sign
+	extensions in floating point modes.
+
 2002-09-04  Janis Johnson  <janis187@us.ibm.com>
 
 	* doc/c-tree.texi: Fix overfull hboxes.
diff --git a/gcc/combine.c b/gcc/combine.c
index 4a2ae3c9743c..10ee904681e8 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -6629,7 +6629,11 @@ make_compound_operation (x, in_code)
 	  if (GET_MODE_SIZE (mode) > GET_MODE_SIZE (GET_MODE (tem))
 	      || (GET_MODE_SIZE (mode) >
 		  GET_MODE_SIZE (GET_MODE (XEXP (tem, 0)))))
-	    tem = gen_rtx_fmt_e (GET_CODE (tem), mode, XEXP (tem, 0));
+	    {
+	      if (! INTEGRAL_MODE_P (mode))
+		break;
+	      tem = gen_rtx_fmt_e (GET_CODE (tem), mode, XEXP (tem, 0));
+	    }
 	  else
 	    tem = gen_lowpart_for_combine (mode, XEXP (tem, 0));
 	  return tem;