S/390: arch12: Add support for new vector bit

 operations.

This patch adds support for the new bit operations introduced with
arch12.

The patch also renames the one complement pattern to the proper RTL
standard name.

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* config/s390/s390.c (s390_rtx_costs): Return low costs for the
	canonical form of ~AND to make sure the new instruction will be
	used.
	* config/s390/vector.md ("notand<mode>3", "ior_not<mode>3")
	("notxor<mode>3"): Add new pattern definitions.
	("*not<mode>"): Rename to ...
	("one_cmpl<mode>2"): ... this.

gcc/testsuite/ChangeLog:

2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>

	* gcc.target/s390/vxe/bitops-1.c: New test.

From-SVN: r246453

gcc/config/s390/s390.c

@@ -3373,6 +3373,21 @@ s390_rtx_costs (rtx x, machine_mode mode, int outer_code,
 	  *total = COSTS_N_INSNS (2);
 	  return true;
 	}
+
+      /* ~AND on a 128 bit mode.  This can be done using a vector
+	 instruction.  */
+      if (TARGET_VXE
+	  && GET_CODE (XEXP (x, 0)) == NOT
+	  && GET_CODE (XEXP (x, 1)) == NOT
+	  && REG_P (XEXP (XEXP (x, 0), 0))
+	  && REG_P (XEXP (XEXP (x, 1), 0))
+	  && GET_MODE_SIZE (GET_MODE (XEXP (XEXP (x, 0), 0))) == 16
+	  && s390_hard_regno_mode_ok (VR0_REGNUM,
+				      GET_MODE (XEXP (XEXP (x, 0), 0))))
+	{
+	  *total = COSTS_N_INSNS (1);
+	  return true;
+	}
       /* fallthrough */
     case ASHIFT:
     case ASHIFTRT:

gcc/config/s390/vector.md

@@ -655,6 +655,15 @@
   "vn\t%v0,%v1,%v2"
   [(set_attr "op_type" "VRR")])
 
+; Vector not and
+
+(define_insn "notand<mode>3"
+  [(set (match_operand:VT                 0 "register_operand" "=v")
+	(ior:VT (not:VT (match_operand:VT 1 "register_operand" "%v"))
+		(not:VT	(match_operand:VT 2 "register_operand"  "v"))))]
+  "TARGET_VXE"
+  "vnn\t%v0,%v1,%v2"
+  [(set_attr "op_type" "VRR")])
 
 ; Vector or
 
@@ -666,6 +675,15 @@
   "vo\t%v0,%v1,%v2"
   [(set_attr "op_type" "VRR")])
 
+; Vector or with complement
+
+(define_insn "ior_not<mode>3"
+  [(set (match_operand:VT                 0 "register_operand" "=v")
+	(ior:VT (not:VT (match_operand:VT 2 "register_operand"  "v"))
+		(match_operand:VT         1 "register_operand" "%v")))]
+  "TARGET_VXE"
+  "voc\t%v0,%v1,%v2"
+  [(set_attr "op_type" "VRR")])
 
 ; Vector xor
 
@@ -677,9 +695,18 @@
   "vx\t%v0,%v1,%v2"
   [(set_attr "op_type" "VRR")])
 
+; Vector not xor
+
+(define_insn "notxor<mode>3"
+  [(set (match_operand:VT                 0 "register_operand" "=v")
+	(not:VT (xor:VT (match_operand:VT 1 "register_operand" "%v")
+			(match_operand:VT 2 "register_operand"  "v"))))]
+  "TARGET_VXE"
+  "vnx\t%v0,%v1,%v2"
+  [(set_attr "op_type" "VRR")])
 
-; Bitwise inversion of a vector - used for vec_cmpne
-(define_insn "*not<mode>"
+; Bitwise inversion of a vector
+(define_insn "one_cmpl<mode>2"
   [(set (match_operand:VT         0 "register_operand" "=v")
 	(not:VT (match_operand:VT 1 "register_operand"  "v")))]
   "TARGET_VX"

gcc/testsuite/ChangeLog

 2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
 
+	* gcc.target/s390/vxe/bitops-1.c: New test.
+
+2017-03-24  Andreas Krebbel  <krebbel@linux.vnet.ibm.com>
+
 	* gcc.target/s390/s390.exp: Run tests in arch12 and vxe dirs.
 	* lib/target-supports.exp: Add effective target check s390_vxe.
 

gcc/testsuite/gcc.target/s390/vxe/bitops-1.c

+/* { dg-do run } */
+/* { dg-options "-O3 -mzarch -march=arch12 --save-temps" } */
+/* { dg-require-effective-target s390_vxe } */
+
+typedef unsigned int       uv4si __attribute__((vector_size(16)));
+
+uv4si __attribute__((noinline))
+not_xor (uv4si a, uv4si b)
+{
+  return ~(a ^ b);
+}
+/* { dg-final { scan-assembler-times "vnx\t%v24,%v24,%v26" 1 } } */
+
+uv4si __attribute__((noinline))
+not_and (uv4si a, uv4si b)
+{
+  return ~(a & b);
+}
+/* { dg-final { scan-assembler-times "vnn\t%v24,%v24,%v26" 1 } } */
+
+uv4si __attribute__((noinline))
+or_not (uv4si a, uv4si b)
+{
+  return a | ~b;
+}
+/* { dg-final { scan-assembler-times "voc\t%v24,%v24,%v26" 1 } } */
+
+
+int
+main ()
+{
+  uv4si a = (uv4si){ 42, 1, 0, 2 };
+  uv4si b = (uv4si){ 42, 2, 0, 2 };
+  uv4si c;
+
+  c = not_xor (a, b);
+
+  if (c[0] != ~0 || c[1] != ~3 || c[2] != ~0 || c[3] != ~0)
+    __builtin_abort ();
+
+  c = not_and (a, b);
+
+  if (c[0] != ~42 || c[1] != ~0 || c[2] != ~0 || c[3] != ~2)
+    __builtin_abort ();
+
+  c = or_not (a, b);
+
+  if (c[0] != ~0 || c[1] != ~2 || c[2] != ~0 || c[3] != ~0)
+    __builtin_abort ();
+
+  return 0;
+}