altivec.md (altivec_vsumsws_be): Add define_expand.

gcc/ChangeLog:

2017-11-13  Carl Love  <cel@us.ibm.com>

	* config/rs6000/altivec.md (altivec_vsumsws_be): Add define_expand.

gcc/testsuite/ChangeLog:

2017-11-13 Carl Love  <cel@us.ibm.com>

	* gcc.target/powerpc/builtin-vec-sums-be-int.c: New test file.

From-SVN: r254714

gcc/ChangeLog

+2017-11-13  Carl Love  <cel@us.ibm.com>
+
+	* config/rs6000/altivec.md (altivec_vsumsws_be): Add define_expand.
+
 2017-11-13  Tom Tromey  <tom@tromey.com>
 
 	* doc/cpp.texi (Variadic Macros): Document __VA_OPT__.

gcc/config/rs6000/rs6000-builtin.def

@@ -1079,6 +1079,7 @@ BU_ALTIVEC_2 (VSUM4SBS,	      "vsum4sbs",	CONST,	altivec_vsum4sbs)
 BU_ALTIVEC_2 (VSUM4SHS,	      "vsum4shs",	CONST,	altivec_vsum4shs)
 BU_ALTIVEC_2 (VSUM2SWS,	      "vsum2sws",	CONST,	altivec_vsum2sws)
 BU_ALTIVEC_2 (VSUMSWS,	      "vsumsws",	CONST,	altivec_vsumsws)
+BU_ALTIVEC_2 (VSUMSWS_BE,     "vsumsws_be",	CONST,	altivec_vsumsws_direct)
 BU_ALTIVEC_2 (VXOR,	      "vxor",		CONST,	xorv4si3)
 BU_ALTIVEC_2 (COPYSIGN_V4SF,  "copysignfp",	CONST,	vector_copysignv4sf3)
 

gcc/testsuite/ChangeLog

+2017-11-13 Carl Love  <cel@us.ibm.com>
+
+	* gcc.target/powerpc/builtin-vec-sums-be-int.c: New test file.
+
 2017-11-13  Tom Tromey  <tom@tromey.com>
 
 	* c-c++-common/cpp/va-opt-pedantic.c: New file.

gcc/testsuite/gcc.target/powerpc/builtin-vec-sums-be-int.c

+/* Test for the __builtin_altivec_vsumsws_be() builtin.
+   It produces just the instruction vsumsws in LE and BE modes.  */
+
+/* { dg-do compile } */
+/* { dg-require-effective-target powerpc_altivec_ok } */
+/* { dg-options "-maltivec -O2" } */
+
+#include <altivec.h>
+
+vector signed int
+test_vec_sums (vector signed int vsi2, vector signed int vsi3)
+{
+  return  __builtin_altivec_vsumsws_be (vsi2, vsi3);
+}
+
+/* { dg-final { scan-assembler-times "vsumsws" 1 } } */