From: H.J. Lu <hongjiu.lu@intel.com>
Date: Wed, 15 May 2019 15:23:49 +0000 (+0000)
Subject: i386: Emulate MMX ssse3_pmaddubsw with SSE
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=6cbd0ef53a491294c7c503b0bb4579f8a212b1f2;p=gcc.git

i386: Emulate MMX ssse3_pmaddubsw with SSE

Emulate MMX ssse3_pmaddubsw with SSE.  Only SSE register source operand
is allowed.

	PR target/89021
	* config/i386/sse.md (ssse3_pmaddubsw): Add SSE emulation.

From-SVN: r271243
---

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 80b83ccf356..9cad0f4c8b2 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR target/89021
+	* config/i386/sse.md (ssse3_pmaddubsw): Add SSE emulation.
+
 2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR target/89021
diff --git a/gcc/config/i386/sse.md b/gcc/config/i386/sse.md
index 0a0b8a4f028..bd3bbbe94a4 100644
--- a/gcc/config/i386/sse.md
+++ b/gcc/config/i386/sse.md
@@ -16002,17 +16002,17 @@
    (set_attr "mode" "TI")])
 
 (define_insn "ssse3_pmaddubsw"
-  [(set (match_operand:V4HI 0 "register_operand" "=y")
+  [(set (match_operand:V4HI 0 "register_operand" "=y,x,Yv")
 	(ss_plus:V4HI
 	  (mult:V4HI
 	    (zero_extend:V4HI
 	      (vec_select:V4QI
-		(match_operand:V8QI 1 "register_operand" "0")
+		(match_operand:V8QI 1 "register_operand" "0,0,Yv")
 		(parallel [(const_int 0) (const_int 2)
 			   (const_int 4) (const_int 6)])))
 	    (sign_extend:V4HI
 	      (vec_select:V4QI
-		(match_operand:V8QI 2 "nonimmediate_operand" "ym")
+		(match_operand:V8QI 2 "register_mmxmem_operand" "ym,x,Yv")
 		(parallel [(const_int 0) (const_int 2)
 			   (const_int 4) (const_int 6)]))))
 	  (mult:V4HI
@@ -16024,13 +16024,17 @@
 	      (vec_select:V4QI (match_dup 2)
 		(parallel [(const_int 1) (const_int 3)
 			   (const_int 5) (const_int 7)]))))))]
-  "TARGET_SSSE3"
-  "pmaddubsw\t{%2, %0|%0, %2}"
-  [(set_attr "type" "sseiadd")
+  "(TARGET_MMX || TARGET_MMX_WITH_SSE) && TARGET_SSSE3"
+  "@
+   pmaddubsw\t{%2, %0|%0, %2}
+   pmaddubsw\t{%2, %0|%0, %2}
+   vpmaddubsw\t{%2, %1, %0|%0, %1, %2}"
+  [(set_attr "mmx_isa" "native,x64_noavx,x64_avx")
+   (set_attr "type" "sseiadd")
    (set_attr "atom_unit" "simul")
    (set_attr "prefix_extra" "1")
    (set (attr "prefix_rex") (symbol_ref "x86_extended_reg_mentioned_p (insn)"))
-   (set_attr "mode" "DI")])
+   (set_attr "mode" "DI,TI,TI")])
 
 (define_mode_iterator PMULHRSW
   [V8HI (V16HI "TARGET_AVX2")])