rs6000: Implement [u]avg<mode>3_ceil

We already had those in fact, just under other names.  Use the standard
names so that the vectorizer can use it.


	* config/rs6000/altivec.md (altivec_vavgu<VI_char>): Rename to...
	(uavg<mode>3_ceil): ... This.
	(altivec_vavgs<VI_char>): Rename to...
	(avg<mode>3_ceil): ... This.
	* config/rs6000/rs6000-builtin.def (VAVGUB, VAVGSB, VAVGUH, VAVGSH,
	VAVGUW, VAVGSW): Adjust.

From-SVN: r277421

gcc/ChangeLog

+2019-10-24  Segher Boessenkool  <segher@kernel.crashing.org>
+
+	* config/rs6000/altivec.md (altivec_vavgu<VI_char>): Rename to...
+	(uavg<mode>3_ceil): ... This.
+	(altivec_vavgs<VI_char>): Rename to...
+	(avg<mode>3_ceil): ... This.
+	* config/rs6000/rs6000-builtin.def (VAVGUB, VAVGSB, VAVGUH, VAVGSH,
+	VAVGUW, VAVGSW): Adjust.
+
 2019-10-24  Nathan Sidwell  <nathan@acm.org>
 
 	* dumpfile.c (dump_begin): Reorder decls to use RAII.

gcc/config/rs6000/altivec.md

@@ -560,7 +560,7 @@
   [(set_attr "type" "vecsimple")])
 
 ;;
-(define_insn "altivec_vavgu<VI_char>"
+(define_insn "uavg<mode>3_ceil"
   [(set (match_operand:VI 0 "register_operand" "=v")
         (unspec:VI [(match_operand:VI 1 "register_operand" "v")
                     (match_operand:VI 2 "register_operand" "v")]
@@ -569,7 +569,7 @@
   "vavgu<VI_char> %0,%1,%2"
   [(set_attr "type" "vecsimple")])
 
-(define_insn "altivec_vavgs<VI_char>"
+(define_insn "avg<mode>3_ceil"
   [(set (match_operand:VI 0 "register_operand" "=v")
         (unspec:VI [(match_operand:VI 1 "register_operand" "v")
                     (match_operand:VI 2 "register_operand" "v")]

gcc/config/rs6000/rs6000-builtin.def

@@ -1002,12 +1002,12 @@ BU_ALTIVEC_2 (VADDUWS,	      "vadduws",	CONST,	altivec_vadduws)
 BU_ALTIVEC_2 (VADDSWS,	      "vaddsws",	CONST,	altivec_vaddsws)
 BU_ALTIVEC_2 (VAND,	      "vand",		CONST,	andv4si3)
 BU_ALTIVEC_2 (VANDC,	      "vandc",		CONST,	andcv4si3)
-BU_ALTIVEC_2 (VAVGUB,	      "vavgub",		CONST,	altivec_vavgub)
-BU_ALTIVEC_2 (VAVGSB,	      "vavgsb",		CONST,	altivec_vavgsb)
-BU_ALTIVEC_2 (VAVGUH,	      "vavguh",		CONST,	altivec_vavguh)
-BU_ALTIVEC_2 (VAVGSH,	      "vavgsh",		CONST,	altivec_vavgsh)
-BU_ALTIVEC_2 (VAVGUW,	      "vavguw",		CONST,	altivec_vavguw)
-BU_ALTIVEC_2 (VAVGSW,	      "vavgsw",		CONST,	altivec_vavgsw)
+BU_ALTIVEC_2 (VAVGUB,	      "vavgub",		CONST,	uavgv16qi3_ceil)
+BU_ALTIVEC_2 (VAVGSB,	      "vavgsb",		CONST,	avgv16qi3_ceil)
+BU_ALTIVEC_2 (VAVGUH,	      "vavguh",		CONST,	uavgv8hi3_ceil)
+BU_ALTIVEC_2 (VAVGSH,	      "vavgsh",		CONST,	avgv8hi3_ceil)
+BU_ALTIVEC_2 (VAVGUW,	      "vavguw",		CONST,	uavgv4si3_ceil)
+BU_ALTIVEC_2 (VAVGSW,	      "vavgsw",		CONST,	avgv4si3_ceil)
 BU_ALTIVEC_2 (VCFUX,	      "vcfux",		CONST,	altivec_vcfux)
 BU_ALTIVEC_2 (VCFSX,	      "vcfsx",		CONST,	altivec_vcfsx)
 BU_ALTIVEC_2 (VCMPBFP,	      "vcmpbfp",	CONST,	altivec_vcmpbfp)