i386: Emulate MMX mmx_psadbw with SSE

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

	PR target/89021
	* config/i386/mmx.md (mmx_psadbw): Add SSE emulation.

From-SVN: r271237

gcc/ChangeLog

 2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR target/89021
+	* config/i386/mmx.md (mmx_psadbw): Add SSE emulation.
+
+2019-05-15  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR target/89021
 	* config/i386/mmx.md (mmx_uavgv4hi3): Also check TARGET_MMX and
 	TARGET_MMX_WITH_SSE.
 	(*mmx_uavgv4hi3): Add SSE emulation.

gcc/config/i386/mmx.md

@@ -1796,14 +1796,19 @@
    (set_attr "mode" "DI,TI,TI")])
 
 (define_insn "mmx_psadbw"
-  [(set (match_operand:V1DI 0 "register_operand" "=y")
-        (unspec:V1DI [(match_operand:V8QI 1 "register_operand" "0")
-		      (match_operand:V8QI 2 "nonimmediate_operand" "ym")]
+  [(set (match_operand:V1DI 0 "register_operand" "=y,x,Yv")
+        (unspec:V1DI [(match_operand:V8QI 1 "register_operand" "0,0,Yv")
+		      (match_operand:V8QI 2 "register_mmxmem_operand" "ym,x,Yv")]
 		     UNSPEC_PSADBW))]
-  "TARGET_SSE || TARGET_3DNOW_A"
-  "psadbw\t{%2, %0|%0, %2}"
-  [(set_attr "type" "mmxshft")
-   (set_attr "mode" "DI")])
+  "(TARGET_MMX || TARGET_MMX_WITH_SSE)
+   && (TARGET_SSE || TARGET_3DNOW_A)"
+  "@
+   psadbw\t{%2, %0|%0, %2}
+   psadbw\t{%2, %0|%0, %2}
+   vpsadbw\t{%2, %1, %0|%0, %1, %2}"
+  [(set_attr "mmx_isa" "native,x64_noavx,x64_avx")
+   (set_attr "type" "mmxshft,sseiadd,sseiadd")
+   (set_attr "mode" "DI,TI,TI")])
 
 (define_insn_and_split "mmx_pmovmskb"
   [(set (match_operand:SI 0 "register_operand" "=r,r")