[AArch64] vqneg and vqabs intrinsics implementation.

This patch implements vqneg_s64, vqnegd_s64, vqabs_s64 and vqabsd_s64
AArch64 intrinsics.

From-SVN: r209640

gcc/ChangeLog

+2014-04-22  Alex Velenko  <Alex.Velenko@arm.com>
+
+	* gcc/config/aarch64/aarch64-simd.md (aarch64_s<optab><mode>):
+	Pattern extended.
+	* config/aarch64/aarch64-simd-builtins.def (sqneg): Iterator
+	extended.
+	(sqabs): Likewise.
+	* config/aarch64/arm_neon.h (vqneg_s64): New intrinsic.
+	(vqnegd_s64): Likewise.
+	(vqabs_s64): Likewise.
+	(vqabsd_s64): Likewise.
+
 2014-04-22  Richard Henderson  <rth@redhat.com>
 
 	* config/sparc/sparc.c (sparc_init_modes): Hoist GET_MODE_SIZE

gcc/config/aarch64/aarch64-simd-builtins.def

@@ -142,8 +142,8 @@
   BUILTIN_VSQN_HSDI (UNOP, sqmovn, 0)
   BUILTIN_VSQN_HSDI (UNOP, uqmovn, 0)
   /* Implemented by aarch64_s<optab><mode>.  */
-  BUILTIN_VSDQ_I_BHSI (UNOP, sqabs, 0)
-  BUILTIN_VSDQ_I_BHSI (UNOP, sqneg, 0)
+  BUILTIN_VSDQ_I (UNOP, sqabs, 0)
+  BUILTIN_VSDQ_I (UNOP, sqneg, 0)
 
   BUILTIN_VSD_HSI (QUADOP, sqdmlal_lane, 0)
   BUILTIN_VSD_HSI (QUADOP, sqdmlsl_lane, 0)

gcc/config/aarch64/aarch64-simd.md

@@ -2610,9 +2610,9 @@
 ;; <su>q<absneg>
 
 (define_insn "aarch64_s<optab><mode>"
-  [(set (match_operand:VSDQ_I_BHSI 0 "register_operand" "=w")
-	(UNQOPS:VSDQ_I_BHSI
-	  (match_operand:VSDQ_I_BHSI 1 "register_operand" "w")))]
+  [(set (match_operand:VSDQ_I 0 "register_operand" "=w")
+	(UNQOPS:VSDQ_I
+	  (match_operand:VSDQ_I 1 "register_operand" "w")))]
   "TARGET_SIMD"
   "s<optab>\\t%<v>0<Vmtype>, %<v>1<Vmtype>"
   [(set_attr "type" "neon_<optab><q>")]

gcc/config/aarch64/arm_neon.h

@@ -2318,6 +2318,12 @@ vqneg_s32 (int32x2_t __a)
   return (int32x2_t) __builtin_aarch64_sqnegv2si (__a);
 }
 
+__extension__ static __inline int64x1_t __attribute__ ((__always_inline__))
+vqneg_s64 (int64x1_t __a)
+{
+  return __builtin_aarch64_sqnegdi (__a);
+}
+
 __extension__ static __inline int8x16_t __attribute__ ((__always_inline__))
 vqnegq_s8 (int8x16_t __a)
 {
@@ -2354,6 +2360,12 @@ vqabs_s32 (int32x2_t __a)
   return (int32x2_t) __builtin_aarch64_sqabsv2si (__a);
 }
 
+__extension__ static __inline int64x1_t __attribute__ ((__always_inline__))
+vqabs_s64 (int64x1_t __a)
+{
+  return __builtin_aarch64_sqabsdi (__a);
+}
+
 __extension__ static __inline int8x16_t __attribute__ ((__always_inline__))
 vqabsq_s8 (int8x16_t __a)
 {
@@ -20943,6 +20955,12 @@ vqabss_s32 (int32x1_t __a)
   return (int32x1_t) __builtin_aarch64_sqabssi (__a);
 }
 
+__extension__ static __inline int64_t __attribute__ ((__always_inline__))
+vqabsd_s64 (int64_t __a)
+{
+  return __builtin_aarch64_sqabsdi (__a);
+}
+
 /* vqadd */
 
 __extension__ static __inline int8x1_t __attribute__ ((__always_inline__))
@@ -21561,6 +21579,12 @@ vqnegs_s32 (int32x1_t __a)
   return (int32x1_t) __builtin_aarch64_sqnegsi (__a);
 }
 
+__extension__ static __inline int64_t __attribute__ ((__always_inline__))
+vqnegd_s64 (int64_t __a)
+{
+  return __builtin_aarch64_sqnegdi (__a);
+}
+
 /* vqrdmulh */
 
 __extension__ static __inline int16x4_t __attribute__ ((__always_inline__))

gcc/testsuite/ChangeLog

+2014-04-22  Alex Velenko  <Alex.Velenko@arm.com>
+
+	* gcc.target/aarch64/vqneg_s64_1.c: New testcase.
+	* gcc.target/aarch64/vqabs_s64_1.c: New testcase.
+
 2014-04-22  Richard Sandiford  <rdsandiford@googlemail.com>
 
 	* gcc.dg/memcpy-5.c: New test.

gcc/testsuite/gcc.target/aarch64/vqabs_s64_1.c

+/* Test vqabs_s64 intrinsics work correctly.  */
+/* { dg-do run } */
+/* { dg-options "--save-temps" } */
+
+#include <arm_neon.h>
+
+extern void abort (void);
+
+int __attribute__ ((noinline))
+test_vqabs_s64 (int64x1_t passed, int64_t expected)
+{
+  return vget_lane_s64 (vqabs_s64 (passed), 0) != expected;
+}
+
+int __attribute__ ((noinline))
+test_vqabsd_s64 (int64_t passed, int64_t expected)
+{
+  return vqabsd_s64 (passed) != expected;
+}
+
+/* { dg-final { scan-assembler-times "sqabs\\td\[0-9\]+, d\[0-9\]+" 2 } } */
+
+int
+main (int argc, char **argv)
+{
+  /* Basic test.  */
+  if (test_vqabs_s64 (vcreate_s64 (-1), 1))
+    abort ();
+  if (test_vqabsd_s64 (-1, 1))
+    abort ();
+
+  /* Getting absolute value of min int64_t.
+     Note, exact result cannot be represented in int64_t,
+     so max int64_t is expected.  */
+  if (test_vqabs_s64 (vcreate_s64 (0x8000000000000000), 0x7fffffffffffffff))
+    abort ();
+  if (test_vqabsd_s64 (0x8000000000000000, 0x7fffffffffffffff))
+    abort ();
+
+  /* Another input that gets max int64_t.  */
+  if (test_vqabs_s64 (vcreate_s64 (0x8000000000000001), 0x7fffffffffffffff))
+    abort ();
+  if (test_vqabsd_s64 (0x8000000000000001, 0x7fffffffffffffff))
+    abort ();
+
+  /* Checking that large positive numbers stay the same.  */
+  if (test_vqabs_s64 (vcreate_s64 (0x7fffffffffffffff), 0x7fffffffffffffff))
+    abort ();
+  if (test_vqabsd_s64 (0x7fffffffffffffff, 0x7fffffffffffffff))
+    abort ();
+
+  return 0;
+}
+/* { dg-final { cleanup-saved-temps } } */

gcc/testsuite/gcc.target/aarch64/vqneg_s64_1.c

+/* Test vqneg_s64 intrinsics work correctly.  */
+/* { dg-do run } */
+/* { dg-options "--save-temps" } */
+
+#include <arm_neon.h>
+
+extern void abort (void);
+
+int __attribute__ ((noinline))
+test_vqneg_s64 (int64x1_t passed, int64_t expected)
+{
+  return vget_lane_s64 (vqneg_s64 (passed), 0) != expected;
+}
+
+int __attribute__ ((noinline))
+test_vqnegd_s64 (int64_t passed, int64_t expected)
+{
+  return vqnegd_s64 (passed) != expected;
+}
+
+/* { dg-final { scan-assembler-times "sqneg\\td\[0-9\]+, d\[0-9\]+" 2 } } */
+
+int
+main (int argc, char **argv)
+{
+  /* Basic test.  */
+  if (test_vqneg_s64 (vcreate_s64 (-1), 1))
+    abort ();
+  if (test_vqnegd_s64 (-1, 1))
+    abort ();
+
+  /* Negating max int64_t.  */
+  if (test_vqneg_s64 (vcreate_s64 (0x7fffffffffffffff), 0x8000000000000001))
+    abort ();
+  if (test_vqnegd_s64 (0x7fffffffffffffff, 0x8000000000000001))
+    abort ();
+
+  /* Negating min int64_t.
+     Note, exact negation cannot be represented as int64_t.  */
+  if (test_vqneg_s64 (vcreate_s64 (0x8000000000000000), 0x7fffffffffffffff))
+    abort ();
+  if (test_vqnegd_s64 (0x8000000000000000, 0x7fffffffffffffff))
+    abort ();
+
+  return 0;
+}
+/* { dg-final { cleanup-saved-temps } } */