aarch64: Use RTL builtins for [su]mlsl_lane[q] intrinsics

Rewrite [su]mlsl_lane[q] Neon intrinsics to use RTL builtins rather
than inline assembly code, allowing for better scheduling and
optimization.

gcc/ChangeLog:

2021-01-28  Jonathan Wright  <jonathan.wright@arm.com>

	* config/aarch64/aarch64-simd-builtins.def: Add [su]mlsl_lane[q]
	builtin generator macros.
	* config/aarch64/aarch64-simd.md (aarch64_vec_<su>mlsl_lane<Qlane>):
	Define.
	* config/aarch64/arm_neon.h (vmlsl_lane_s16): Use RTL builtin
	instead of inline asm.
	(vmlsl_lane_s32): Likewise.
	(vmlsl_lane_u16): Likewise.
	(vmlsl_lane_u32): Likewise.
	(vmlsl_laneq_s16): Likewise.
	(vmlsl_laneq_s32): Likewise.
	(vmlsl_laneq_u16): Likewise.
	(vmlsl_laneq_u32): Likewise.

diff --git a/gcc/config/aarch64/aarch64-simd-builtins.def b/gcc/config/aarch64/aarch64-simd-builtins.def
index cb79c08ba66df817e289d891b206ea7f66c81527..4913231ea55260fea1c7511a28a436e1e1e2ab20 100644 (file)
--- a/gcc/config/aarch64/aarch64-simd-builtins.def
+++ b/gcc/config/aarch64/aarch64-simd-builtins.def
@@ -264,6 +264,11 @@
   BUILTIN_VD_HSI (TERNOPU_LANE, vec_umult_laneq_, 0, ALL)
   BUILTIN_VD_HSI (QUADOPU_LANE, vec_umlal_laneq_, 0, ALL)
 
+  BUILTIN_VD_HSI (QUADOP_LANE, vec_smlsl_lane_, 0, NONE)
+  BUILTIN_VD_HSI (QUADOP_LANE, vec_smlsl_laneq_, 0, NONE)
+  BUILTIN_VD_HSI (QUADOPU_LANE, vec_umlsl_lane_, 0, NONE)
+  BUILTIN_VD_HSI (QUADOPU_LANE, vec_umlsl_laneq_, 0, NONE)
+
   BUILTIN_VSD_HSI (BINOP, sqdmull, 0, NONE)
   BUILTIN_VSD_HSI (TERNOP_LANE, sqdmull_lane, 0, NONE)
   BUILTIN_VSD_HSI (TERNOP_LANE, sqdmull_laneq, 0, NONE)

diff --git a/gcc/config/aarch64/aarch64-simd.md b/gcc/config/aarch64/aarch64-simd.md
index 919d0b03998d893232331d6f4da5c93ae6bf41b8..adeec028d49f06156a5e84ce4dd83dbd6f151474 100644 (file)
--- a/gcc/config/aarch64/aarch64-simd.md
+++ b/gcc/config/aarch64/aarch64-simd.md
@@ -2082,6 +2082,26 @@
   [(set_attr "type" "neon_mla_<Vetype>_scalar_long")]
 )
 
+(define_insn "aarch64_vec_<su>mlsl_lane<Qlane>"
+  [(set (match_operand:<VWIDE> 0 "register_operand" "=w")
+   (minus:<VWIDE>
+     (match_operand:<VWIDE> 1 "register_operand" "0")
+     (mult:<VWIDE>
+       (ANY_EXTEND:<VWIDE>
+        (match_operand:<VCOND> 2 "register_operand" "w"))
+       (ANY_EXTEND:<VWIDE>
+        (vec_duplicate:<VCOND>
+          (vec_select:<VEL>
+            (match_operand:VDQHS 3 "register_operand" "<vwx>")
+            (parallel [(match_operand:SI 4 "immediate_operand" "i")])))))))]
+  "TARGET_SIMD"
+  {
+    operands[4] = aarch64_endian_lane_rtx (<MODE>mode, INTVAL (operands[4]));
+    return "<su>mlsl\\t%0.<Vwtype>, %2.<Vcondtype>, %3.<Vetype>[%4]";
+  }
+  [(set_attr "type" "neon_mla_<Vetype>_scalar_long")]
+)
+
 ;; FP vector operations.
 ;; AArch64 AdvSIMD supports single-precision (32-bit) and 
 ;; double-precision (64-bit) floating-point data types and arithmetic as

diff --git a/gcc/config/aarch64/arm_neon.h b/gcc/config/aarch64/arm_neon.h
index b56ab68aad57afb97447c9f5d24f392f6e2b618b..2a71ca9aa3c8c4095e99aa08c48e583f037a41ed 100644 (file)
--- a/gcc/config/aarch64/arm_neon.h
+++ b/gcc/config/aarch64/arm_neon.h
@@ -8068,117 +8068,65 @@ vmlsl_high_u32 (uint64x2_t __a, uint32x4_t __b, uint32x4_t __c)
   return __builtin_aarch64_umlsl_hiv4si_uuuu (__a, __b, __c);
 }
 
-#define vmlsl_lane_s16(a, b, c, d)                                      \
-  __extension__                                                         \
-    ({                                                                  \
-       int16x4_t c_ = (c);                                              \
-       int16x4_t b_ = (b);                                              \
-       int32x4_t a_ = (a);                                              \
-       int32x4_t result;                                                \
-       __asm__ ("smlsl %0.4s, %2.4h, %3.h[%4]"                          \
-                : "=w"(result)                                          \
-                : "0"(a_), "w"(b_), "x"(c_), "i"(d)                     \
-                : /* No clobbers */);                                   \
-       result;                                                          \
-     })
+__extension__ extern __inline int32x4_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vmlsl_lane_s16 (int32x4_t __a, int16x4_t __b, int16x4_t __v, const int __lane)
+{
+  return __builtin_aarch64_vec_smlsl_lane_v4hi (__a, __b, __v, __lane);
+}
 
-#define vmlsl_lane_s32(a, b, c, d)                                      \
-  __extension__                                                         \
-    ({                                                                  \
-       int32x2_t c_ = (c);                                              \
-       int32x2_t b_ = (b);                                              \
-       int64x2_t a_ = (a);                                              \
-       int64x2_t result;                                                \
-       __asm__ ("smlsl %0.2d, %2.2s, %3.s[%4]"                          \
-                : "=w"(result)                                          \
-                : "0"(a_), "w"(b_), "w"(c_), "i"(d)                     \
-                : /* No clobbers */);                                   \
-       result;                                                          \
-     })
+__extension__ extern __inline int64x2_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vmlsl_lane_s32 (int64x2_t __a, int32x2_t __b, int32x2_t __v, const int __lane)
+{
+  return __builtin_aarch64_vec_smlsl_lane_v2si (__a, __b, __v, __lane);
+}
 
-#define vmlsl_lane_u16(a, b, c, d)                                      \
-  __extension__                                                         \
-    ({                                                                  \
-       uint16x4_t c_ = (c);                                             \
-       uint16x4_t b_ = (b);                                             \
-       uint32x4_t a_ = (a);                                             \
-       uint32x4_t result;                                               \
-       __asm__ ("umlsl %0.4s, %2.4h, %3.h[%4]"                          \
-                : "=w"(result)                                          \
-                : "0"(a_), "w"(b_), "x"(c_), "i"(d)                     \
-                : /* No clobbers */);                                   \
-       result;                                                          \
-     })
+__extension__ extern __inline uint32x4_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vmlsl_lane_u16 (uint32x4_t __a, uint16x4_t __b, uint16x4_t __v,
+                const int __lane)
+{
+  return __builtin_aarch64_vec_umlsl_lane_v4hi_uuuus (__a, __b, __v, __lane);
+}
 
-#define vmlsl_lane_u32(a, b, c, d)                                      \
-  __extension__                                                         \
-    ({                                                                  \
-       uint32x2_t c_ = (c);                                             \
-       uint32x2_t b_ = (b);                                             \
-       uint64x2_t a_ = (a);                                             \
-       uint64x2_t result;                                               \
-       __asm__ ("umlsl %0.2d, %2.2s, %3.s[%4]"                          \
-                : "=w"(result)                                          \
-                : "0"(a_), "w"(b_), "w"(c_), "i"(d)                     \
-                : /* No clobbers */);                                   \
-       result;                                                          \
-     })
+__extension__ extern __inline uint64x2_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vmlsl_lane_u32 (uint64x2_t __a, uint32x2_t __b, uint32x2_t __v,
+                const int __lane)
+{
+  return __builtin_aarch64_vec_umlsl_lane_v2si_uuuus (__a, __b, __v, __lane);
+}
 
-#define vmlsl_laneq_s16(a, b, c, d)                                     \
-  __extension__                                                         \
-    ({                                                                  \
-       int16x8_t c_ = (c);                                              \
-       int16x4_t b_ = (b);                                              \
-       int32x4_t a_ = (a);                                              \
-       int32x4_t result;                                                \
-       __asm__ ("smlsl %0.4s, %2.4h, %3.h[%4]"                          \
-                : "=w"(result)                                          \
-                : "0"(a_), "w"(b_), "x"(c_), "i"(d)                     \
-                : /* No clobbers */);                                   \
-       result;                                                          \
-     })
+__extension__ extern __inline int32x4_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vmlsl_laneq_s16 (int32x4_t __a, int16x4_t __b, int16x8_t __v, const int __lane)
+{
+  return __builtin_aarch64_vec_smlsl_laneq_v4hi (__a, __b, __v, __lane);
+}
 
-#define vmlsl_laneq_s32(a, b, c, d)                                     \
-  __extension__                                                         \
-    ({                                                                  \
-       int32x4_t c_ = (c);                                              \
-       int32x2_t b_ = (b);                                              \
-       int64x2_t a_ = (a);                                              \
-       int64x2_t result;                                                \
-       __asm__ ("smlsl %0.2d, %2.2s, %3.s[%4]"                          \
-                : "=w"(result)                                          \
-                : "0"(a_), "w"(b_), "w"(c_), "i"(d)                     \
-                : /* No clobbers */);                                   \
-       result;                                                          \
-     })
+__extension__ extern __inline int64x2_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vmlsl_laneq_s32 (int64x2_t __a, int32x2_t __b, int32x4_t __v, const int __lane)
+{
+  return __builtin_aarch64_vec_smlsl_laneq_v2si (__a, __b, __v, __lane);
+}
 
-#define vmlsl_laneq_u16(a, b, c, d)                                     \
-  __extension__                                                         \
-    ({                                                                  \
-       uint16x8_t c_ = (c);                                             \
-       uint16x4_t b_ = (b);                                             \
-       uint32x4_t a_ = (a);                                             \
-       uint32x4_t result;                                               \
-       __asm__ ("umlsl %0.4s, %2.4h, %3.h[%4]"                          \
-                : "=w"(result)                                          \
-                : "0"(a_), "w"(b_), "x"(c_), "i"(d)                     \
-                : /* No clobbers */);                                   \
-       result;                                                          \
-     })
+__extension__ extern __inline uint32x4_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vmlsl_laneq_u16 (uint32x4_t __a, uint16x4_t __b, uint16x8_t __v,
+                 const int __lane)
+{
+  return __builtin_aarch64_vec_umlsl_laneq_v4hi_uuuus (__a, __b, __v, __lane);
+}
 
-#define vmlsl_laneq_u32(a, b, c, d)                                     \
-  __extension__                                                         \
-    ({                                                                  \
-       uint32x4_t c_ = (c);                                             \
-       uint32x2_t b_ = (b);                                             \
-       uint64x2_t a_ = (a);                                             \
-       uint64x2_t result;                                               \
-       __asm__ ("umlsl %0.2d, %2.2s, %3.s[%4]"                          \
-                : "=w"(result)                                          \
-                : "0"(a_), "w"(b_), "w"(c_), "i"(d)                     \
-                : /* No clobbers */);                                   \
-       result;                                                          \
-     })
+__extension__ extern __inline uint64x2_t
+__attribute__ ((__always_inline__, __gnu_inline__, __artificial__))
+vmlsl_laneq_u32 (uint64x2_t __a, uint32x2_t __b, uint32x4_t __v,
+                 const int __lane)
+{
+  return __builtin_aarch64_vec_umlsl_laneq_v2si_uuuus (__a, __b, __v, __lane);
+}
 
 __extension__ extern __inline int32x4_t
 __attribute__ ((__always_inline__, __gnu_inline__, __artificial__))