From: David S. Miller <davem@davemloft.net>
Date: Wed, 13 Feb 2013 20:25:41 +0000 (+0000)
Subject: We should not strip subregs of non-scalars during shift expansion.
X-Git-Tag: releases/gcc-4.8.0~448
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=7afe28013fa88a06d0e3564dcf9e8ee5cb06c0e1;p=thirdparty%2Fgcc.git

We should not strip subregs of non-scalars during shift expansion.

	* expmed.c (expand_shift_1): Only strip scalar integer subregs.

From-SVN: r196027
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index d4125050a494..bfaa7d302e5e 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,7 @@
+2013-02-13  David S. Miller  <davem@davemloft.net>
+
+	* expmed.c (expand_shift_1): Only strip scalar integer subregs.
+
 2013-02-13  Vladimir Makarov  <vmakarov@redhat.com>
 
 	PR target/56184
diff --git a/gcc/expmed.c b/gcc/expmed.c
index 4a6ddb06b110..954a360c7b23 100644
--- a/gcc/expmed.c
+++ b/gcc/expmed.c
@@ -2116,8 +2116,8 @@ expand_shift_1 (enum tree_code code, enum machine_mode mode, rtx shifted,
 		       % GET_MODE_BITSIZE (mode));
       else if (GET_CODE (op1) == SUBREG
 	       && subreg_lowpart_p (op1)
-	       && INTEGRAL_MODE_P (GET_MODE (SUBREG_REG (op1)))
-	       && INTEGRAL_MODE_P (GET_MODE (op1)))
+	       && SCALAR_INT_MODE_P (GET_MODE (SUBREG_REG (op1)))
+	       && SCALAR_INT_MODE_P (GET_MODE (op1)))
 	op1 = SUBREG_REG (op1);
     }