[GCC][PATCH][AArch64]Add ACLE intrinsics for dot product (usdot - vector, <us/su>dot - by element) for AArch64 AdvSIMD ARMv8.6 Extension

gcc/ChangeLog:

2020-01-16  Stam Markianos-Wright  <stam.markianos-wright@arm.com>

	* config/aarch64/aarch64-builtins.c: (enum aarch64_type_qualifiers):
	New qualifier_lane_quadtup_index, TYPES_TERNOP_SSUS,
	TYPES_QUADOPSSUS_LANE_QUADTUP, TYPES_QUADOPSSSU_LANE_QUADTUP.
	(aarch64_simd_expand_args): Add case SIMD_ARG_LANE_QUADTUP_INDEX.
	(aarch64_simd_expand_builtin): Add qualifier_lane_quadtup_index.
	* config/aarch64/aarch64-simd-builtins.def (usdot, usdot_lane,
	usdot_laneq, sudot_lane,sudot_laneq): New.
	* config/aarch64/aarch64-simd.md (aarch64_usdot): New.
	(aarch64_<sur>dot_lane): New.
	* config/aarch64/arm_neon.h (vusdot_s32): New.
	(vusdotq_s32): New.
	(vusdot_lane_s32): New.
	(vsudot_lane_s32): New.
	* config/aarch64/iterators.md (DOTPROD_I8MM): New iterator.
	(UNSPEC_USDOT, UNSPEC_SUDOT): New unspecs.

gcc/testsuite/ChangeLog:

2020-01-16  Stam Markianos-Wright  <stam.markianos-wright@arm.com>

	* gcc.target/aarch64/advsimd-intrinsics/vdot-compile-3-1.c: New test.
	* gcc.target/aarch64/advsimd-intrinsics/vdot-compile-3-2.c: New test.
	* gcc.target/aarch64/advsimd-intrinsics/vdot-compile-3-3.c: New test.
	* gcc.target/aarch64/advsimd-intrinsics/vdot-compile-3-4.c: New test.

11 files changed, 531 insertions, 3 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9a94998..49dcecb 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,21 @@
+2020-01-16  Stam Markianos-Wright  <stam.markianos-wright@arm.com>
+
+	* config/aarch64/aarch64-builtins.c: (enum aarch64_type_qualifiers):
+	New qualifier_lane_quadtup_index, TYPES_TERNOP_SSUS,
+	TYPES_QUADOPSSUS_LANE_QUADTUP, TYPES_QUADOPSSSU_LANE_QUADTUP.
+	(aarch64_simd_expand_args): Add case SIMD_ARG_LANE_QUADTUP_INDEX.
+	(aarch64_simd_expand_builtin): Add qualifier_lane_quadtup_index.
+	* config/aarch64/aarch64-simd-builtins.def (usdot, usdot_lane,
+	usdot_laneq, sudot_lane,sudot_laneq): New.
+	* config/aarch64/aarch64-simd.md (aarch64_usdot): New.
+	(aarch64_<sur>dot_lane): New.
+	* config/aarch64/arm_neon.h (vusdot_s32): New.
+	(vusdotq_s32): New.
+	(vusdot_lane_s32): New.
+	(vsudot_lane_s32): New.
+	* config/aarch64/iterators.md (DOTPROD_I8MM): New iterator.
+	(UNSPEC_USDOT, UNSPEC_SUDOT): New unspecs.
+
 2020-01-16  Martin Liska  <mliska@suse.cz>
 
 	* value-prof.c (dump_histogram_value): Fix
diff --git a/gcc/config/aarch64/aarch64-builtins.c b/gcc/config/aarch64/aarch64-builtins.c
index f0e0461..f50c485 100644
--- a/gcc/config/aarch64/aarch64-builtins.c
+++ b/gcc/config/aarch64/aarch64-builtins.c
@@ -110,6 +110,9 @@ enum aarch64_type_qualifiers
   /* Lane indices selected in pairs. - must be in range, and flipped for
      bigendian.  */
   qualifier_lane_pair_index = 0x800,
+  /* Lane indices selected in quadtuplets. - must be in range, and flipped for
+     bigendian.  */
+  qualifier_lane_quadtup_index = 0x1000,
 };
 
 typedef struct
@@ -176,6 +179,10 @@ aarch64_types_ternopu_imm_qualifiers[SIMD_MAX_BUILTIN_ARGS]
   = { qualifier_unsigned, qualifier_unsigned,
       qualifier_unsigned, qualifier_immediate };
 #define TYPES_TERNOPUI (aarch64_types_ternopu_imm_qualifiers)
+static enum aarch64_type_qualifiers
+aarch64_types_ternop_ssus_qualifiers[SIMD_MAX_BUILTIN_ARGS]
+  = { qualifier_none, qualifier_none, qualifier_unsigned, qualifier_none };
+#define TYPES_TERNOP_SSUS (aarch64_types_ternop_ssus_qualifiers)
 
 
 static enum aarch64_type_qualifiers
@@ -195,6 +202,19 @@ aarch64_types_quadopu_lane_qualifiers[SIMD_MAX_BUILTIN_ARGS]
 #define TYPES_QUADOPU_LANE (aarch64_types_quadopu_lane_qualifiers)
 
 static enum aarch64_type_qualifiers
+aarch64_types_quadopssus_lane_quadtup_qualifiers[SIMD_MAX_BUILTIN_ARGS]
+  = { qualifier_none, qualifier_none, qualifier_unsigned,
+      qualifier_none, qualifier_lane_quadtup_index };
+#define TYPES_QUADOPSSUS_LANE_QUADTUP \
+	(aarch64_types_quadopssus_lane_quadtup_qualifiers)
+static enum aarch64_type_qualifiers
+aarch64_types_quadopsssu_lane_quadtup_qualifiers[SIMD_MAX_BUILTIN_ARGS]
+  = { qualifier_none, qualifier_none, qualifier_none,
+      qualifier_unsigned, qualifier_lane_quadtup_index };
+#define TYPES_QUADOPSSSU_LANE_QUADTUP \
+	(aarch64_types_quadopsssu_lane_quadtup_qualifiers)
+
+static enum aarch64_type_qualifiers
 aarch64_types_quadopu_imm_qualifiers[SIMD_MAX_BUILTIN_ARGS]
   = { qualifier_unsigned, qualifier_unsigned, qualifier_unsigned,
       qualifier_unsigned, qualifier_immediate };
@@ -1288,6 +1308,7 @@ typedef enum
   SIMD_ARG_LANE_INDEX,
   SIMD_ARG_STRUCT_LOAD_STORE_LANE_INDEX,
   SIMD_ARG_LANE_PAIR_INDEX,
+  SIMD_ARG_LANE_QUADTUP_INDEX,
   SIMD_ARG_STOP
 } builtin_simd_arg;
 
@@ -1377,9 +1398,25 @@ aarch64_simd_expand_args (rtx target, int icode, int have_retval,
 		  op[opc] = gen_int_mode (ENDIAN_LANE_N (nunits / 2, lane),
 					  SImode);
 		}
-	      /* Fall through - if the lane index isn't a constant then
-		 the next case will error.  */
-	      /* FALLTHRU */
+	      /* If the lane index isn't a constant then error out.  */
+	      goto constant_arg;
+	    case SIMD_ARG_LANE_QUADTUP_INDEX:
+	      /* Must be a previous operand into which this is an index and
+		 index is restricted to nunits / 4.  */
+	      gcc_assert (opc > 0);
+	      if (CONST_INT_P (op[opc]))
+		{
+		  machine_mode vmode = insn_data[icode].operand[opc - 1].mode;
+		  unsigned int nunits
+		    = GET_MODE_NUNITS (vmode).to_constant ();
+		  aarch64_simd_lane_bounds (op[opc], 0, nunits / 4, exp);
+		  /* Keep to GCC-vector-extension lane indices in the RTL.  */
+		  int lane = INTVAL (op[opc]);
+		  op[opc] = gen_int_mode (ENDIAN_LANE_N (nunits / 4, lane),
+					  SImode);
+		}
+	      /* If the lane index isn't a constant then error out.  */
+	      goto constant_arg;
 	    case SIMD_ARG_CONSTANT:
 constant_arg:
 	      if (!(*insn_data[icode].operand[opc].predicate)
@@ -1492,6 +1529,8 @@ aarch64_simd_expand_builtin (int fcode, tree exp, rtx target)
 	args[k] = SIMD_ARG_LANE_INDEX;
       else if (d->qualifiers[qualifiers_k] & qualifier_lane_pair_index)
 	args[k] = SIMD_ARG_LANE_PAIR_INDEX;
+      else if (d->qualifiers[qualifiers_k] & qualifier_lane_quadtup_index)
+	args[k] = SIMD_ARG_LANE_QUADTUP_INDEX;
       else if (d->qualifiers[qualifiers_k] & qualifier_struct_load_store_lane_index)
 	args[k] = SIMD_ARG_STRUCT_LOAD_STORE_LANE_INDEX;
       else if (d->qualifiers[qualifiers_k] & qualifier_immediate)
diff --git a/gcc/config/aarch64/aarch64-simd-builtins.def b/gcc/config/aarch64/aarch64-simd-builtins.def
index 57fc593..4744dd1 100644
--- a/gcc/config/aarch64/aarch64-simd-builtins.def
+++ b/gcc/config/aarch64/aarch64-simd-builtins.def
@@ -212,10 +212,15 @@
   /* Implemented by aarch64_<sur><dotprod>{_lane}{q}<dot_mode>.  */
   BUILTIN_VB (TERNOP, sdot, 0)
   BUILTIN_VB (TERNOPU, udot, 0)
+  BUILTIN_VB (TERNOP_SSUS, usdot, 0)
   BUILTIN_VB (QUADOP_LANE, sdot_lane, 0)
   BUILTIN_VB (QUADOPU_LANE, udot_lane, 0)
   BUILTIN_VB (QUADOP_LANE, sdot_laneq, 0)
   BUILTIN_VB (QUADOPU_LANE, udot_laneq, 0)
+  BUILTIN_VB (QUADOPSSUS_LANE_QUADTUP, usdot_lane, 0)
+  BUILTIN_VB (QUADOPSSUS_LANE_QUADTUP, usdot_laneq, 0)
+  BUILTIN_VB (QUADOPSSSU_LANE_QUADTUP, sudot_lane, 0)
+  BUILTIN_VB (QUADOPSSSU_LANE_QUADTUP, sudot_laneq, 0)
 
   /* Implemented by aarch64_fcadd<rot><mode>.   */
   BUILTIN_VHSDF (BINOP, fcadd90, 0)
diff --git a/gcc/config/aarch64/aarch64-simd.md b/gcc/config/aarch64/aarch64-simd.md
index 2989096..9e56e8c 100644
--- a/gcc/config/aarch64/aarch64-simd.md
+++ b/gcc/config/aarch64/aarch64-simd.md
@@ -506,6 +506,20 @@
   [(set_attr "type" "neon_dot<q>")]
 )
 
+;; These instructions map to the __builtins for the armv8.6a I8MM usdot
+;; (vector) Dot Product operation.
+(define_insn "aarch64_usdot<vsi2qi>"
+  [(set (match_operand:VS 0 "register_operand" "=w")
+	(plus:VS
+	  (unspec:VS [(match_operand:<VSI2QI> 2 "register_operand" "w")
+		      (match_operand:<VSI2QI> 3 "register_operand" "w")]
+	  UNSPEC_USDOT)
+	  (match_operand:VS 1 "register_operand" "0")))]
+  "TARGET_I8MM"
+  "usdot\\t%0.<Vtype>, %2.<Vdottype>, %3.<Vdottype>"
+  [(set_attr "type" "neon_dot<q>")]
+)
+
 ;; These expands map to the Dot Product optab the vectorizer checks for.
 ;; The auto-vectorizer expects a dot product builtin that also does an
 ;; accumulation into the provided register.
@@ -573,6 +587,26 @@
   [(set_attr "type" "neon_dot<q>")]
 )
 
+;; These instructions map to the __builtins for the armv8.6a I8MM usdot, sudot
+;; (by element) Dot Product operations.
+(define_insn "aarch64_<DOTPROD_I8MM:sur>dot_lane<VB:isquadop><VS:vsi2qi>"
+  [(set (match_operand:VS 0 "register_operand" "=w")
+	(plus:VS
+	  (unspec:VS [(match_operand:<VS:VSI2QI> 2 "register_operand" "w")
+		      (match_operand:VB 3 "register_operand" "w")
+		      (match_operand:SI 4 "immediate_operand" "i")]
+	  DOTPROD_I8MM)
+	  (match_operand:VS 1 "register_operand" "0")))]
+  "TARGET_I8MM"
+  {
+    int nunits = GET_MODE_NUNITS (<VB:MODE>mode).to_constant ();
+    int lane = INTVAL (operands[4]);
+    operands[4] = gen_int_mode (ENDIAN_LANE_N (nunits / 4, lane), SImode);
+    return "<DOTPROD_I8MM:sur>dot\\t%0.<VS:Vtype>, %2.<VS:Vdottype>, %3.4b[%4]";
+  }
+  [(set_attr "type" "neon_dot<VS:q>")]
+)
+
 (define_expand "copysign<mode>3"
   [(match_operand:VHSDF 0 "register_operand")
    (match_operand:VHSDF 1 "register_operand")
diff --git a/gcc/config/aarch64/arm_neon.h b/gcc/config/aarch64/arm_neon.h
index eaba156..c962140 100644
--- a/gcc/config/aarch64/arm_neon.h
+++ b/gcc/config/aarch64/arm_neon.h
@@ -34611,6 +34611,89 @@ vrnd64xq_f64 (float64x2_t __a)
 
 #include "arm_bf16.h"
 
+/* AdvSIMD 8-bit Integer Matrix Multiply (I8MM) intrinsics.  */
+
+#pragma GCC push_options
+#pragma GCC target ("arch=armv8.2-a+i8mm")
+
+__extension__ extern __inline int32x2_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vusdot_s32 (int32x2_t __r, uint8x8_t __a, int8x8_t __b)
+{
+  return __builtin_aarch64_usdotv8qi_ssus (__r, __a, __b);
+}
+
+__extension__ extern __inline int32x4_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vusdotq_s32 (int32x4_t __r, uint8x16_t __a, int8x16_t __b)
+{
+  return __builtin_aarch64_usdotv16qi_ssus (__r, __a, __b);
+}
+
+__extension__ extern __inline int32x2_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vusdot_lane_s32 (int32x2_t __r, uint8x8_t __a, int8x8_t __b, const int __index)
+{
+  return __builtin_aarch64_usdot_lanev8qi_ssuss (__r, __a, __b, __index);
+}
+
+__extension__ extern __inline int32x2_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vusdot_laneq_s32 (int32x2_t __r, uint8x8_t __a, int8x16_t __b,
+		  const int __index)
+{
+  return __builtin_aarch64_usdot_laneqv8qi_ssuss (__r, __a, __b, __index);
+}
+
+__extension__ extern __inline int32x4_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vusdotq_lane_s32 (int32x4_t __r, uint8x16_t __a, int8x8_t __b,
+		  const int __index)
+{
+  return __builtin_aarch64_usdot_lanev16qi_ssuss (__r, __a, __b, __index);
+}
+
+__extension__ extern __inline int32x4_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vusdotq_laneq_s32 (int32x4_t __r, uint8x16_t __a, int8x16_t __b,
+		   const int __index)
+{
+  return __builtin_aarch64_usdot_laneqv16qi_ssuss (__r, __a, __b, __index);
+}
+
+__extension__ extern __inline int32x2_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vsudot_lane_s32 (int32x2_t __r, int8x8_t __a, uint8x8_t __b, const int __index)
+{
+  return __builtin_aarch64_sudot_lanev8qi_sssus (__r, __a, __b, __index);
+}
+
+__extension__ extern __inline int32x2_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vsudot_laneq_s32 (int32x2_t __r, int8x8_t __a, uint8x16_t __b,
+		  const int __index)
+{
+  return __builtin_aarch64_sudot_laneqv8qi_sssus (__r, __a, __b, __index);
+}
+
+__extension__ extern __inline int32x4_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vsudotq_lane_s32 (int32x4_t __r, int8x16_t __a, uint8x8_t __b,
+		  const int __index)
+{
+  return __builtin_aarch64_sudot_lanev16qi_sssus (__r, __a, __b, __index);
+}
+
+__extension__ extern __inline int32x4_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vsudotq_laneq_s32 (int32x4_t __r, int8x16_t __a, uint8x16_t __b,
+		   const int __index)
+{
+  return __builtin_aarch64_sudot_laneqv16qi_sssus (__r, __a, __b, __index);
+}
+
+#pragma GCC pop_options
+
 #undef __aarch64_vget_lane_any
 
 #undef __aarch64_vdup_lane_any
diff --git a/gcc/config/aarch64/iterators.md b/gcc/config/aarch64/iterators.md
index b9843b8..83720d9 100644
--- a/gcc/config/aarch64/iterators.md
+++ b/gcc/config/aarch64/iterators.md
@@ -799,6 +799,8 @@
     UNSPEC_USUBLT	; Used in aarch64-sve2.md.
     UNSPEC_USUBWB	; Used in aarch64-sve2.md.
     UNSPEC_USUBWT	; Used in aarch64-sve2.md.
+    UNSPEC_USDOT	; Used in aarch64-simd.md.
+    UNSPEC_SUDOT	; Used in aarch64-simd.md.
 ])
 
 ;; ------------------------------------------------------------------
@@ -1463,6 +1465,8 @@
 
 (define_mode_attr f16quad [(V2SF "") (V4SF "q")])
 
+(define_mode_attr isquadop [(V8QI "") (V16QI "q")])
+
 (define_code_attr f16mac [(plus "a") (minus "s")])
 
 ;; Map smax to smin and umax to umin.
@@ -2045,6 +2049,8 @@
 
 (define_int_iterator DOTPROD [UNSPEC_SDOT UNSPEC_UDOT])
 
+(define_int_iterator DOTPROD_I8MM [UNSPEC_USDOT UNSPEC_SUDOT])
+
 (define_int_iterator ADDSUBHN [UNSPEC_ADDHN UNSPEC_RADDHN
 			       UNSPEC_SUBHN UNSPEC_RSUBHN])
 
@@ -2738,6 +2744,7 @@
 		      (UNSPEC_URSHL  "ur") (UNSPEC_SRSHL  "sr")
 		      (UNSPEC_UQRSHL  "u") (UNSPEC_SQRSHL  "s")
 		      (UNSPEC_SDOT "s") (UNSPEC_UDOT "u")
+		      (UNSPEC_USDOT "us") (UNSPEC_SUDOT "su")
 ])
 
 (define_int_attr r [(UNSPEC_SQDMULH "") (UNSPEC_SQRDMULH "r")
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 0d8aa60..8b01aa0 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2020-01-16  Stam Markianos-Wright  <stam.markianos-wright@arm.com>
+
+	* gcc.target/aarch64/advsimd-intrinsics/vdot-compile-3-1.c: New test.
+	* gcc.target/aarch64/advsimd-intrinsics/vdot-compile-3-2.c: New test.
+	* gcc.target/aarch64/advsimd-intrinsics/vdot-compile-3-3.c: New test.
+	* gcc.target/aarch64/advsimd-intrinsics/vdot-compile-3-4.c: New test.
+
 2020-01-16  Andre Vieira  <andre.simoesdiasvieira@arm.com>
 
 	PR tree-optimization/92429
diff --git a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vdot-3-1.c b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vdot-3-1.c
new file mode 100755
index 0000000..ac4f821
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vdot-3-1.c
@@ -0,0 +1,136 @@
+/* { dg-do assemble { target { aarch64*-*-* } } } */
+/* { dg-require-effective-target arm_v8_2a_i8mm_ok } */
+/* { dg-add-options arm_v8_2a_i8mm }  */
+/* { dg-additional-options "-save-temps" } */
+/* { dg-final { check-function-bodies "**" "" {-O[^0]} } } */
+/* { dg-skip-if "" { *-*-* } { "-fno-fat-lto-objects" } } */
+
+#include <arm_neon.h>
+
+/* Unsigned-Signed Dot Product instructions.  */
+
+/*
+**ufoo:
+**	usdot	v0\.2s, v1\.8b, v2\.8b
+**	ret
+*/
+int32x2_t ufoo (int32x2_t r, uint8x8_t x, int8x8_t y)
+{
+  return vusdot_s32 (r, x, y);
+}
+
+/*
+**ufooq:
+**	usdot	v0\.4s, v1\.16b, v2\.16b
+**	ret
+*/
+int32x4_t ufooq (int32x4_t r, uint8x16_t x, int8x16_t y)
+{
+  return vusdotq_s32 (r, x, y);
+}
+
+/*
+**ufoo_lane:
+**	usdot	v0\.2s, v1\.8b, v2\.4b\[0\]
+**	ret
+*/
+int32x2_t ufoo_lane (int32x2_t r, uint8x8_t x, int8x8_t y)
+{
+  return vusdot_lane_s32 (r, x, y, 0);
+}
+
+/*
+**ufoo_laneq:
+**	usdot	v0\.2s, v1\.8b, v2\.4b\[2\]
+**	ret
+*/
+int32x2_t ufoo_laneq (int32x2_t r, uint8x8_t x, int8x16_t y)
+{
+  return vusdot_laneq_s32 (r, x, y, 2);
+}
+
+/*
+**ufooq_lane:
+**	usdot	v0\.4s, v1\.16b, v2\.4b\[1\]
+**	ret
+*/
+int32x4_t ufooq_lane (int32x4_t r, uint8x16_t x, int8x8_t y)
+{
+  return vusdotq_lane_s32 (r, x, y, 1);
+}
+
+/*
+**ufooq_laneq:
+**	usdot	v0\.4s, v1\.16b, v2\.4b\[3\]
+**	ret
+*/
+int32x4_t ufooq_laneq (int32x4_t r, uint8x16_t x, int8x16_t y)
+{
+  return vusdotq_laneq_s32 (r, x, y, 3);
+}
+
+
+/* Signed-Unsigned Dot Product instructions.  */
+
+/*
+**sfoo_lane:
+**	sudot	v0\.2s, v1\.8b, v2\.4b\[0\]
+**	ret
+*/
+int32x2_t sfoo_lane (int32x2_t r, int8x8_t x, uint8x8_t y)
+{
+  return vsudot_lane_s32 (r, x, y, 0);
+}
+
+/*
+**sfoo_laneq:
+**	sudot	v0\.2s, v1\.8b, v2\.4b\[2\]
+**	ret
+*/
+int32x2_t sfoo_laneq (int32x2_t r, int8x8_t x, uint8x16_t y)
+{
+  return vsudot_laneq_s32 (r, x, y, 2);
+}
+
+/*
+**sfooq_lane:
+**	sudot	v0\.4s, v1\.16b, v2\.4b\[1\]
+**	ret
+*/
+int32x4_t sfooq_lane (int32x4_t r, int8x16_t x, uint8x8_t y)
+{
+  return vsudotq_lane_s32 (r, x, y, 1);
+}
+
+/*
+**sfooq_laneq:
+**	sudot	v0\.4s, v1\.16b, v2\.4b\[3\]
+**	ret
+*/
+int32x4_t sfooq_laneq (int32x4_t r, int8x16_t x, uint8x16_t y)
+{
+  return vsudotq_laneq_s32 (r, x, y, 3);
+}
+
+/*
+**ufoo_untied:
+**	mov	v0\.8b, v1\.8b
+**	usdot	v0\.2s, v2\.8b, v3\.8b
+**	ret
+*/
+int32x2_t ufoo_untied (int32x2_t unused, int32x2_t r, uint8x8_t x, int8x8_t y)
+{
+  return vusdot_s32 (r, x, y);
+}
+
+/*
+**ufooq_laneq_untied:
+**	mov	v0\.16b, v1\.16b
+**	usdot	v0\.4s, v2\.16b, v3\.4b\[3\]
+**	ret
+*/
+int32x4_t ufooq_laneq_untied (int32x2_t unused, int32x4_t r, uint8x16_t x, int8x16_t y)
+{
+  return vusdotq_laneq_s32 (r, x, y, 3);
+}
+
diff --git a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vdot-3-2.c b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vdot-3-2.c
new file mode 100755
index 0000000..96bca23
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vdot-3-2.c
@@ -0,0 +1,137 @@
+/* { dg-do assemble { target { aarch64*-*-* } } } */
+/* { dg-require-effective-target arm_v8_2a_i8mm_ok } */
+/* { dg-add-options arm_v8_2a_i8mm }  */
+/* { dg-additional-options "-mbig-endian -save-temps" } */
+/* { dg-final { check-function-bodies "**" "" {-O[^0]} } } */
+/* { dg-skip-if "" { *-*-* } { "-fno-fat-lto-objects" } } */
+
+#include <arm_neon.h>
+
+/* Unsigned-Signed Dot Product instructions.  */
+
+/*
+**ufoo:
+**	usdot	v0\.2s, v1\.8b, v2\.8b
+**	ret
+*/
+int32x2_t ufoo (int32x2_t r, uint8x8_t x, int8x8_t y)
+{
+  return vusdot_s32 (r, x, y);
+}
+
+/*
+**ufooq:
+**	usdot	v0\.4s, v1\.16b, v2\.16b
+**	ret
+*/
+int32x4_t ufooq (int32x4_t r, uint8x16_t x, int8x16_t y)
+{
+  return vusdotq_s32 (r, x, y);
+}
+
+/*
+**ufoo_lane:
+**	usdot	v0\.2s, v1\.8b, v2\.4b\[0\]
+**	ret
+*/
+int32x2_t ufoo_lane (int32x2_t r, uint8x8_t x, int8x8_t y)
+{
+  return vusdot_lane_s32 (r, x, y, 0);
+}
+
+/*
+**ufoo_laneq:
+**	usdot	v0\.2s, v1\.8b, v2\.4b\[2\]
+**	ret
+*/
+int32x2_t ufoo_laneq (int32x2_t r, uint8x8_t x, int8x16_t y)
+{
+  return vusdot_laneq_s32 (r, x, y, 2);
+}
+
+/*
+**ufooq_lane:
+**	usdot	v0\.4s, v1\.16b, v2\.4b\[1\]
+**	ret
+*/
+int32x4_t ufooq_lane (int32x4_t r, uint8x16_t x, int8x8_t y)
+{
+  return vusdotq_lane_s32 (r, x, y, 1);
+}
+
+/*
+**ufooq_laneq:
+**	usdot	v0\.4s, v1\.16b, v2\.4b\[3\]
+**	ret
+*/
+int32x4_t ufooq_laneq (int32x4_t r, uint8x16_t x, int8x16_t y)
+{
+  return vusdotq_laneq_s32 (r, x, y, 3);
+}
+
+
+/* Signed-Unsigned Dot Product instructions.  */
+
+/*
+**sfoo_lane:
+**	sudot	v0\.2s, v1\.8b, v2\.4b\[0\]
+**	ret
+*/
+int32x2_t sfoo_lane (int32x2_t r, int8x8_t x, uint8x8_t y)
+{
+  return vsudot_lane_s32 (r, x, y, 0);
+}
+
+/*
+**sfoo_laneq:
+**	sudot	v0\.2s, v1\.8b, v2\.4b\[2\]
+**	ret
+*/
+int32x2_t sfoo_laneq (int32x2_t r, int8x8_t x, uint8x16_t y)
+{
+  return vsudot_laneq_s32 (r, x, y, 2);
+}
+
+/*
+**sfooq_lane:
+**	sudot	v0\.4s, v1\.16b, v2\.4b\[1\]
+**	ret
+*/
+int32x4_t sfooq_lane (int32x4_t r, int8x16_t x, uint8x8_t y)
+{
+  return vsudotq_lane_s32 (r, x, y, 1);
+}
+
+/*
+**sfooq_laneq:
+**	sudot	v0\.4s, v1\.16b, v2\.4b\[3\]
+**	ret
+*/
+int32x4_t sfooq_laneq (int32x4_t r, int8x16_t x, uint8x16_t y)
+{
+  return vsudotq_laneq_s32 (r, x, y, 3);
+}
+
+/*
+**ufoo_untied:
+**	mov	v0\.8b, v1\.8b
+**	usdot	v0\.2s, v2\.8b, v3\.8b
+**	ret
+*/
+int32x2_t ufoo_untied (int32x2_t unused, int32x2_t r, uint8x8_t x, int8x8_t y)
+{
+  return vusdot_s32 (r, x, y);
+}
+
+/*
+**ufooq_laneq_untied:
+**	mov	v0\.16b, v1\.16b
+**	usdot	v0\.4s, v2\.16b, v3\.4b\[3\]
+**	ret
+*/
+int32x4_t ufooq_laneq_untied (int32x2_t unused, int32x4_t r, uint8x16_t x, int8x16_t y)
+{
+  return vusdotq_laneq_s32 (r, x, y, 3);
+}
+
+
diff --git a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vdot-3-3.c b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vdot-3-3.c
new file mode 100755
index 0000000..18ecabe
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vdot-3-3.c
@@ -0,0 +1,31 @@
+/* { dg-do assemble { target { aarch64*-*-* } } } */
+/* { dg-require-effective-target arm_v8_2a_i8mm_ok } */
+/* { dg-add-options arm_v8_2a_i8mm }  */
+/* { dg-additional-options "--save-temps" } */
+/* { dg-skip-if "" { *-*-* } { "-fno-fat-lto-objects" } } */
+
+#include <arm_neon.h>
+
+int32x2_t ufoo_lane (int32x2_t r, uint8x8_t x, int8x8_t y)
+{
+  /* { dg-error "lane -1 out of range 0 - 1" "" { target *-*-* } 0 } */
+  return vusdot_lane_s32 (r, x, y, -1);
+}
+
+int32x2_t ufoo_laneq (int32x2_t r, uint8x8_t x, int8x16_t y)
+{
+  /* { dg-error "lane -1 out of range 0 - 3" "" { target *-*-* } 0 } */
+  return vusdot_laneq_s32 (r, x, y, -1);
+}
+
+int32x4_t ufooq_lane (int32x4_t r, uint8x16_t x, int8x8_t y)
+{
+  /* { dg-error "lane 2 out of range 0 - 1" "" { target *-*-* } 0 } */
+  return vusdotq_lane_s32 (r, x, y, 2);
+}
+
+int32x4_t ufooq_laneq (int32x4_t r, uint8x16_t x, int8x16_t y)
+{
+  /* { dg-error "lane 4 out of range 0 - 3" "" { target *-*-* } 0 } */
+  return vusdotq_laneq_s32 (r, x, y, 4);
+}
diff --git a/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vdot-3-4.c b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vdot-3-4.c
new file mode 100755
index 0000000..66c87d4
--- /dev/null
+++ b/gcc/testsuite/gcc.target/aarch64/advsimd-intrinsics/vdot-3-4.c
@@ -0,0 +1,31 @@
+/* { dg-do assemble { target { aarch64*-*-* } } } */
+/* { dg-require-effective-target arm_v8_2a_i8mm_ok } */
+/* { dg-add-options arm_v8_2a_i8mm }  */
+/* { dg-additional-options "--save-temps" } */
+/* { dg-skip-if "" { *-*-* } { "-fno-fat-lto-objects" } } */
+
+#include <arm_neon.h>
+
+int32x2_t sfoo_lane (int32x2_t r, int8x8_t x, uint8x8_t y)
+{
+  /* { dg-error "lane -1 out of range 0 - 1" "" { target *-*-* } 0 } */
+  return vsudot_lane_s32 (r, x, y, -1);
+}
+
+int32x2_t sfoo_laneq (int32x2_t r, int8x8_t x, uint8x16_t y)
+{
+  /* { dg-error "lane -1 out of range 0 - 3" "" { target *-*-* } 0 } */
+  return vsudot_laneq_s32 (r, x, y, -1);
+}
+
+int32x4_t sfooq_lane (int32x4_t r, int8x16_t x, uint8x8_t y)
+{
+  /* { dg-error "lane 2 out of range 0 - 1" "" { target *-*-* } 0 } */
+  return vsudotq_lane_s32 (r, x, y, 2);
+}
+
+int32x4_t sfooq_laneq (int32x4_t r, int8x16_t x, uint8x16_t y)
+{
+  /* { dg-error "lane 4 out of range 0 - 3" "" { target *-*-* } 0 } */
+  return vsudotq_laneq_s32 (r, x, y, 4);
+}