From: Joseph Myers <joseph@codesourcery.com>
Date: Mon, 13 Oct 2008 21:31:47 +0000 (+0100)
Subject: combine.c (simplify_set): Avoid calling LOAD_EXTEND_OP on non-integer modes.
X-Git-Tag: releases/gcc-4.4.0~2067
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=f27017d133f82f9646f0ae3810415644aadb6d30;p=thirdparty%2Fgcc.git

combine.c (simplify_set): Avoid calling LOAD_EXTEND_OP on non-integer modes.

	* combine.c (simplify_set): Avoid calling LOAD_EXTEND_OP on
	non-integer modes.

From-SVN: r141096
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index ef4ce0b27b61..7cdbe4489b81 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2008-10-13  Joseph Myers  <joseph@codesourcery.com>
+
+	* combine.c (simplify_set): Avoid calling LOAD_EXTEND_OP on
+	non-integer modes.
+
 2008-10-13  Matthias Klose  <doko@ubuntu.com>
 
 	* gcc/config/pa/linux-atomic.c: Work around missing header file
diff --git a/gcc/combine.c b/gcc/combine.c
index 5821301d72cd..55baf37149ad 100644
--- a/gcc/combine.c
+++ b/gcc/combine.c
@@ -5843,6 +5843,7 @@ simplify_set (rtx x)
      zero_extend to avoid the reload that would otherwise be required.  */
 
   if (GET_CODE (src) == SUBREG && subreg_lowpart_p (src)
+      && INTEGRAL_MODE_P (GET_MODE (SUBREG_REG (src)))
       && LOAD_EXTEND_OP (GET_MODE (SUBREG_REG (src))) != UNKNOWN
       && SUBREG_BYTE (src) == 0
       && (GET_MODE_SIZE (GET_MODE (src))