From: Jakub Jelinek <jakub@redhat.com>
Date: Fri, 20 Aug 2010 20:54:25 +0000 (+0200)
Subject: re PR target/45336 (pextr{b,w,d}, (worse than) redundant extensions)
X-Git-Tag: releases/gcc-4.6.0~4900
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=50d724a75026efc61783b772dae0f12a823fb720;p=thirdparty%2Fgcc.git

re PR target/45336 (pextr{b,w,d}, (worse than) redundant extensions)

	PR target/45336
	* config/i386/sse.md (*sse4_1_pextrb): Add SWI48 mode iterator
	to cover zero extension into 64-bit register.
	(*sse2_pextrw): Likewise.
	(*sse4_1_pextrd_zext): New insn.

From-SVN: r163420
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8b93321607ff..6ccc0a185be0 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,11 @@
+2010-08-20  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/45336
+	* config/i386/sse.md (*sse4_1_pextrb): Add SWI48 mode iterator
+	to cover zero extension into 64-bit register.
+	(*sse2_pextrw): Likewise.
+	(*sse4_1_pextrd_zext): New insn.
+
 2010-08-20  Iain Sandoe  <iains@gcc.gnu.org>
 
 	revert r163410, partially revert r163267.
diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
index b505c8ed4f5b..3f756d9b636f 100644
--- a/gcc/config/i386/sse.md
+++ b/gcc/config/i386/sse.md
@@ -7075,14 +7075,14 @@
    (set_attr "length_immediate" "1")
    (set_attr "mode" "TI")])
 
-(define_insn "*sse4_1_pextrb"
-  [(set (match_operand:SI 0 "register_operand" "=r")
-	(zero_extend:SI
+(define_insn "*sse4_1_pextrb_<mode>"
+  [(set (match_operand:SWI48 0 "register_operand" "=r")
+	(zero_extend:SWI48
 	  (vec_select:QI
 	    (match_operand:V16QI 1 "register_operand" "x")
 	    (parallel [(match_operand:SI 2 "const_0_to_15_operand" "n")]))))]
   "TARGET_SSE4_1"
-  "%vpextrb\t{%2, %1, %0|%0, %1, %2}"
+  "%vpextrb\t{%2, %1, %k0|%k0, %1, %2}"
   [(set_attr "type" "sselog")
    (set_attr "prefix_extra" "1")
    (set_attr "length_immediate" "1")
@@ -7102,14 +7102,14 @@
    (set_attr "prefix" "maybe_vex")
    (set_attr "mode" "TI")])
 
-(define_insn "*sse2_pextrw"
-  [(set (match_operand:SI 0 "register_operand" "=r")
-	(zero_extend:SI
+(define_insn "*sse2_pextrw_<mode>"
+  [(set (match_operand:SWI48 0 "register_operand" "=r")
+	(zero_extend:SWI48
 	  (vec_select:HI
 	    (match_operand:V8HI 1 "register_operand" "x")
 	    (parallel [(match_operand:SI 2 "const_0_to_7_operand" "n")]))))]
   "TARGET_SSE2"
-  "%vpextrw\t{%2, %1, %0|%0, %1, %2}"
+  "%vpextrw\t{%2, %1, %k0|%k0, %1, %2}"
   [(set_attr "type" "sselog")
    (set_attr "prefix_data16" "1")
    (set_attr "length_immediate" "1")
@@ -7142,6 +7142,20 @@
    (set_attr "prefix" "maybe_vex")
    (set_attr "mode" "TI")])
 
+(define_insn "*sse4_1_pextrd_zext"
+  [(set (match_operand:DI 0 "register_operand" "=r")
+	(zero_extend:DI
+	  (vec_select:SI
+	    (match_operand:V4SI 1 "register_operand" "x")
+	    (parallel [(match_operand:SI 2 "const_0_to_3_operand" "n")]))))]
+  "TARGET_64BIT && TARGET_SSE4_1"
+  "%vpextrd\t{%2, %1, %k0|%k0, %1, %2}"
+  [(set_attr "type" "sselog")
+   (set_attr "prefix_extra" "1")
+   (set_attr "length_immediate" "1")
+   (set_attr "prefix" "maybe_vex")
+   (set_attr "mode" "TI")])
+
 ;; It must come before *vec_extractv2di_1_sse since it is preferred.
 (define_insn "*sse4_1_pextrq"
   [(set (match_operand:DI 0 "nonimmediate_operand" "=rm")