From: Uros Bizjak <ubizjak@gmail.com>
Date: Mon, 2 Jun 2014 22:05:48 +0000 (+0200)
Subject: backport: re PR target/61239 (ICE in decompose, at rtl.h when compiling vshuf-v16hi... 
X-Git-Tag: releases/gcc-4.8.4~437
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=12675ce3f72d30eacd1e5970f6f9703c6b8e07cb;p=thirdparty%2Fgcc.git

backport: re PR target/61239 (ICE in decompose, at rtl.h when compiling vshuf-v16hi.c using -mavx2)

	Backport from mainline
	2014-06-02  Uros Bizjak  <ubizjak@gmail.com>

	PR target/61239
	* config/i386/i386.c (ix86_expand_vec_perm) [case V32QImode]: Use
	GEN_INT (-128) instead of GEN_INT (128) to set MSB of QImode constant.

From-SVN: r211150
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8d9a352e949a..d2b035200398 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,12 @@
+2014-06-03  Uros Bizjak  <ubizjak@gmail.com>
+
+	Backport from mainline
+	2014-06-02  Uros Bizjak  <ubizjak@gmail.com>
+
+	PR target/61239
+	* config/i386/i386.c (ix86_expand_vec_perm) [case V32QImode]: Use
+	GEN_INT (-128) instead of GEN_INT (128) to set MSB of QImode constant.
+
 2014-05-28  Guozhi Wei  <carrot@google.com>
 
 	PR target/61202
diff --git a/gcc/config/i386/i386.c b/gcc/config/i386/i386.c
index 8ca9a03810ce..fa81d0fbbefc 100644
--- a/gcc/config/i386/i386.c
+++ b/gcc/config/i386/i386.c
@@ -20505,7 +20505,7 @@ ix86_expand_vec_perm (rtx operands[])
 	  t1 = gen_reg_rtx (V32QImode);
 	  t2 = gen_reg_rtx (V32QImode);
 	  t3 = gen_reg_rtx (V32QImode);
-	  vt2 = GEN_INT (128);
+	  vt2 = GEN_INT (-128);
 	  for (i = 0; i < 32; i++)
 	    vec[i] = vt2;
 	  vt = gen_rtx_CONST_VECTOR (V32QImode, gen_rtvec_v (32, vec));