From: Jan Hubicka <jh@suse.cz>
Date: Thu, 17 May 2001 16:18:26 +0000 (+0200)
Subject: * simplify_rtx.c (simplify_subreg): Fix simplification of nested subregs.
X-Git-Tag: prereleases/libstdc++-3.0.95~4407
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=07b5314928c3ff2cd0a49503699525ee2fd9ceff;p=thirdparty%2Fgcc.git

* simplify_rtx.c (simplify_subreg): Fix simplification of nested subregs.

From-SVN: r42202
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index a37e759f9544..6f7e0731c58f 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+Thu May 17 18:17:34 CEST 2001  Jan Hubicka  <jh@suse.cz>
+
+	* simplify_rtx.c (simplify_subreg): Fix simplification of nested subregs.
+
 2001-05-17  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>
 
 	* gccbug.in (CATEGORIES): Add "bootstrap".
diff --git a/gcc/simplify-rtx.c b/gcc/simplify-rtx.c
index c4dee23c9a92..44cfc3b7e32b 100644
--- a/gcc/simplify-rtx.c
+++ b/gcc/simplify-rtx.c
@@ -2332,11 +2332,12 @@ simplify_subreg (outermode, op, innermode, byte)
 	}
 
       /* Recurse for futher possible simplifications.  */
-      new = simplify_subreg (outermode, op, GET_MODE (op),
+      new = simplify_subreg (outermode, SUBREG_REG (op),
+			     GET_MODE (SUBREG_REG (op)),
 			     final_offset);
       if (new)
 	return new;
-      return gen_rtx_SUBREG (outermode, op, final_offset);
+      return gen_rtx_SUBREG (outermode, SUBREG_REG (op), final_offset);
     }
 
   /* SUBREG of a hard register => just change the register number