arm: vst1_types_x2 ACLE intrinsics

This patch is part of a series of patches implementing the _xN
variants of the vst1 intrinsic for the arm port. This patch adds the
_x2 variants of the vst1 intrinsic.

ACLE documents:
https://developer.arm.com/documentation/ihi0053/latest/

ISA documents:
https://developer.arm.com/documentation/ddi0487/latest/

gcc/ChangeLog:
	* config/arm/arm_neon.h
	(vst1_u8_x2, vst1_u16_x2, vst1_u32_x2, vst1_u64_x2): New.
	(vst1_s8_x2, vst1_s16_x2, vst1_s32_x2, vst1_s64_x2): New.
	(vst1_f16_x2, vst1_f32_x2): New.
	(vst1_p8_x2, vst1_p16_x2, vst1_p64_x2): New.
	(vst1_bf16_x2): New.
	* config/arm/arm_neon_builtins.def (vst1_x2): New entries.
	* config/arm/neon.md (vst1_x2<mode>): New.

gcc/testsuite/ChangeLog:
	* gcc.target/arm/simd/vst1_base_xN_1.c: Add new tests.
	* gcc.target/arm/simd/vst1_bf16_xN_1.c: Add new tests.
	* gcc.target/arm/simd/vst1_fp16_xN_1.c: Add new tests.
	* gcc.target/arm/simd/vst1_p64_xN_1.c: Add new tests.

7 files changed, 231 insertions, 0 deletions

diff --git a/gcc/config/arm/arm_neon.h b/gcc/config/arm/arm_neon.h
index c03be99..60f1077 100644
--- a/gcc/config/arm/arm_neon.h
+++ b/gcc/config/arm/arm_neon.h
@@ -11242,6 +11242,14 @@ vst1_p64 (poly64_t * __a, poly64x1_t __b)
   __builtin_neon_vst1di ((__builtin_neon_di *) __a, __b);
 }
 
+__extension__ extern __inline void
+__attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
+vst1_p64_x2 (poly64_t * __a, poly64x1x2_t __b)
+{
+  union { poly64x1x2_t __i; __builtin_neon_ti __o; } __bu = { __b };
+  __builtin_neon_vst1_x2di ((__builtin_neon_di *) __a, __bu.__o);
+}
+
 #pragma GCC pop_options
 __extension__ extern __inline void
 __attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
@@ -11271,6 +11279,38 @@ vst1_s64 (int64_t * __a, int64x1_t __b)
   __builtin_neon_vst1di ((__builtin_neon_di *) __a, __b);
 }
 
+__extension__ extern __inline void
+__attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
+vst1_s8_x2 (int8_t * __a, int8x8x2_t __b)
+{
+  union { int8x8x2_t __i; __builtin_neon_ti __o; } __bu = { __b };
+  __builtin_neon_vst1_x2v8qi ((__builtin_neon_qi *) __a, __bu.__o);
+}
+
+__extension__ extern __inline void
+__attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
+vst1_s16_x2 (int16_t * __a, int16x4x2_t __b)
+{
+  union { int16x4x2_t __i; __builtin_neon_ti __o; } __bu = { __b };
+  __builtin_neon_vst1_x2v4hi ((__builtin_neon_hi *) __a, __bu.__o);
+}
+
+__extension__ extern __inline void
+__attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
+vst1_s32_x2 (int32_t * __a, int32x2x2_t __b)
+{
+  union { int32x2x2_t __i; __builtin_neon_ti __o; } __bu = { __b };
+  __builtin_neon_vst1_x2v2si ((__builtin_neon_si *) __a, __bu.__o);
+}
+
+__extension__ extern __inline void
+__attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
+vst1_s64_x2 (int64_t * __a, int64x1x2_t __b)
+{
+  union { int64x1x2_t __i; __builtin_neon_ti __o; } __bu = { __b };
+  __builtin_neon_vst1_x2di ((__builtin_neon_di *) __a, __bu.__o);
+}
+
 #if defined (__ARM_FP16_FORMAT_IEEE) || defined (__ARM_FP16_FORMAT_ALTERNATIVE)
 __extension__ extern __inline void
 __attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
@@ -11287,6 +11327,24 @@ vst1_f32 (float32_t * __a, float32x2_t __b)
   __builtin_neon_vst1v2sf ((__builtin_neon_sf *) __a, __b);
 }
 
+#if defined (__ARM_FP16_FORMAT_IEEE) || defined (__ARM_FP16_FORMAT_ALTERNATIVE)
+__extension__ extern __inline void
+__attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
+vst1_f16_x2 (float16_t * __a, float16x4x2_t __b)
+{
+  union { float16x4x2_t __i; __builtin_neon_ti __o; } __bu = { __b };
+  __builtin_neon_vst1_x2v4hf (__a, __bu.__o);
+}
+#endif
+
+__extension__ extern __inline void
+__attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
+vst1_f32_x2 (float32_t * __a, float32x2x2_t __b)
+{
+  union { float32x2x2_t __i; __builtin_neon_ti __o; } __bu = { __b };
+  __builtin_neon_vst1_x2v2sf ((__builtin_neon_sf *) __a, __bu.__o);
+}
+
 __extension__ extern __inline void
 __attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
 vst1_u8 (uint8_t * __a, uint8x8_t __b)
@@ -11317,6 +11375,38 @@ vst1_u64 (uint64_t * __a, uint64x1_t __b)
 
 __extension__ extern __inline void
 __attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
+vst1_u8_x2 (uint8_t * __a, uint8x8x2_t __b)
+{
+  union { uint8x8x2_t __i; __builtin_neon_ti __o; } __bu = { __b };
+  __builtin_neon_vst1_x2v8qi ((__builtin_neon_qi *) __a, __bu.__o);
+}
+
+__extension__ extern __inline void
+__attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
+vst1_u16_x2 (uint16_t * __a, uint16x4x2_t __b)
+{
+  union { uint16x4x2_t __i; __builtin_neon_ti __o; } __bu = { __b };
+  __builtin_neon_vst1_x2v4hi ((__builtin_neon_hi *) __a, __bu.__o);
+}
+
+__extension__ extern __inline void
+__attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
+vst1_u32_x2 (uint32_t * __a, uint32x2x2_t __b)
+{
+  union { uint32x2x2_t __i; __builtin_neon_ti __o; } __bu = { __b };
+  __builtin_neon_vst1_x2v2si ((__builtin_neon_si *) __a, __bu.__o);
+}
+
+__extension__ extern __inline void
+__attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
+vst1_u64_x2 (uint64_t * __a, uint64x1x2_t __b)
+{
+  union { uint64x1x2_t __i; __builtin_neon_ti __o; } __bu = { __b };
+  __builtin_neon_vst1_x2di ((__builtin_neon_di *) __a, __bu.__o);
+}
+
+__extension__ extern __inline void
+__attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
 vst1_p8 (poly8_t * __a, poly8x8_t __b)
 {
   __builtin_neon_vst1v8qi ((__builtin_neon_qi *) __a, (int8x8_t) __b);
@@ -11329,6 +11419,22 @@ vst1_p16 (poly16_t * __a, poly16x4_t __b)
   __builtin_neon_vst1v4hi ((__builtin_neon_hi *) __a, (int16x4_t) __b);
 }
 
+__extension__ extern __inline void
+__attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
+vst1_p8_x2 (poly8_t * __a, poly8x8x2_t __b)
+{
+  union { poly8x8x2_t __i; __builtin_neon_ti __o; } __bu = { __b };
+  __builtin_neon_vst1_x2v8qi ((__builtin_neon_qi *) __a, __bu.__o);
+}
+
+__extension__ extern __inline void
+__attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
+vst1_p16_x2 (poly16_t * __a, poly16x4x2_t __b)
+{
+  union { poly16x4x2_t __i; __builtin_neon_ti __o; } __bu = { __b };
+  __builtin_neon_vst1_x2v4hi ((__builtin_neon_hi *) __a, __bu.__o);
+}
+
 #pragma GCC push_options
 #pragma GCC target ("fpu=crypto-neon-fp-armv8")
 __extension__ extern __inline void
@@ -20072,6 +20178,14 @@ vst1_bf16 (bfloat16_t * __a, bfloat16x4_t __b)
 
 __extension__ extern __inline void
 __attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
+vst1_bf16_x2 (bfloat16_t * __a, bfloat16x4x2_t __b)
+{
+  union { bfloat16x4x2_t __i; __builtin_neon_ti __o; } __bu = { __b };
+  __builtin_neon_vst1_x2v4bf ((__builtin_neon_bf *) __a, __bu.__o);
+}
+
+__extension__ extern __inline void
+__attribute__  ((__always_inline__, __gnu_inline__, __artificial__))
 vst1q_bf16 (bfloat16_t * __a, bfloat16x8_t __b)
 {
   __builtin_neon_vst1v8bf (__a, __b);
diff --git a/gcc/config/arm/arm_neon_builtins.def b/gcc/config/arm/arm_neon_builtins.def
index 90dad8c..6f16bf0 100644
--- a/gcc/config/arm/arm_neon_builtins.def
+++ b/gcc/config/arm/arm_neon_builtins.def
@@ -311,6 +311,7 @@ VAR10 (LOAD1, vld1_dup,
 VAR14 (STORE1, vst1,
         v8qi, v4hi, v4hf, v2si, v2sf, di, v16qi, v8hi, v8hf, v4si, v4sf, v2di,
         v4bf, v8bf)
+VAR7 (STORE1, vst1_x2, v8qi, v4hi, v2si, di, v4hf, v2sf, v4bf)
 VAR14 (STORE1LANE, vst1_lane,
        v8qi, v4hi, v4hf, v2si, v2sf, di, v16qi, v8hi, v8hf, v4si, v4sf, v2di, v4bf, v8bf)
 VAR13 (LOAD1, vld2,
diff --git a/gcc/config/arm/neon.md b/gcc/config/arm/neon.md
index b8f8fd6..2a7286d 100644
--- a/gcc/config/arm/neon.md
+++ b/gcc/config/arm/neon.md
@@ -5125,6 +5125,16 @@ if (BYTES_BIG_ENDIAN)
 		     UNSPEC_VST1))]
   "TARGET_NEON")
 
+(define_insn "neon_vst1_x2<mode>"
+  [(set (match_operand:TI 0 "neon_struct_operand" "=Um")
+        (unspec:TI [(match_operand:TI 1 "s_register_operand" "w")
+                    (unspec:VDQX [(const_int 0)] UNSPEC_VSTRUCTDUMMY)]
+                   UNSPEC_VST1))]
+  "TARGET_NEON"
+  "vst1.<V_sz_elem>\t%h1, %A0"
+  [(set_attr "type" "neon_store1_2reg<q>")]
+)
+
 (define_insn "neon_vst1<mode>"
   [(set (match_operand:VDQX 0 "neon_struct_operand" "=Um")
 	(unspec:VDQX [(match_operand:VDQX 1 "s_register_operand" "w")]
diff --git a/gcc/testsuite/gcc.target/arm/simd/vst1_base_xN_1.c b/gcc/testsuite/gcc.target/arm/simd/vst1_base_xN_1.c
new file mode 100644
index 0000000..575897f
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/simd/vst1_base_xN_1.c
@@ -0,0 +1,67 @@
+/* { dg-do assemble } */
+/* { dg-require-effective-target arm_neon_ok } */
+/* { dg-options "-save-temps -O2" } */
+/* { dg-add-options arm_neon } */
+
+#include "arm_neon.h"
+
+void test_vst1_u8_x2 (uint8_t * ptr, uint8x8x2_t val)
+{
+    vst1_u8_x2 (ptr, val);
+}
+
+void test_vst1_u16_x2 (uint16_t * ptr, uint16x4x2_t val)
+{
+    vst1_u16_x2 (ptr, val);
+}
+
+void test_vst1_u32_x2 (uint32_t * ptr, uint32x2x2_t val)
+{
+    vst1_u32_x2 (ptr, val);
+}
+
+void test_vst1_u64_x2 (uint64_t * ptr, uint64x1x2_t val)
+{
+    vst1_u64_x2 (ptr, val);
+}
+
+void test_vst1_s8_x2 (int8_t * ptr, int8x8x2_t val)
+{
+    vst1_s8_x2 (ptr, val);
+}
+
+void test_vst1_s16_x2 (int16_t * ptr, int16x4x2_t val)
+{
+    vst1_s16_x2 (ptr, val);
+}
+
+void test_vst1_s32_x2 (int32_t * ptr, int32x2x2_t val)
+{
+    vst1_s32_x2 (ptr, val);
+}
+
+void test_vst1_s64_x2 (int64_t * ptr, int64x1x2_t val)
+{
+    vst1_s64_x2 (ptr, val);
+}
+
+void test_vst1_f32_x2 (float32_t * ptr, float32x2x2_t val)
+{
+    vst1_f32_x2 (ptr, val);
+}
+
+void test_vst1_p8_x2 (poly8_t * ptr, poly8x8x2_t val)
+{
+    vst1_p8_x2 (ptr, val);
+}
+
+void test_vst1_p16_x2 (poly16_t * ptr, poly16x4x2_t val)
+{
+    vst1_p16_x2 (ptr, val);
+}
+
+
+/* { dg-final { scan-assembler-times {vst1.8\t\{d[0-9]+-d[0-9]+\}, \[r[0-9]+\]\n} 3 } }  */
+/* { dg-final { scan-assembler-times {vst1.16\t\{d[0-9]+-d[0-9]+\}, \[r[0-9]+\]\n} 3 } }  */
+/* { dg-final { scan-assembler-times {vst1.32\t\{d[0-9]+-d[0-9]+\}, \[r[0-9]+\]\n} 3 } }  */
+/* { dg-final { scan-assembler-times {vst1.64\t\{d[0-9]+-d[0-9]+\}, \[r[0-9]+:64\]\n} 2 } }  */
diff --git a/gcc/testsuite/gcc.target/arm/simd/vst1_bf16_xN_1.c b/gcc/testsuite/gcc.target/arm/simd/vst1_bf16_xN_1.c
new file mode 100644
index 0000000..213fd20
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/simd/vst1_bf16_xN_1.c
@@ -0,0 +1,13 @@
+/* { dg-do assemble } */
+/* { dg-require-effective-target arm_v8_2a_bf16_neon_ok } */
+/* { dg-options "-save-temps -O2" } */
+/* { dg-add-options arm_v8_2a_bf16_neon } */
+
+#include "arm_neon.h"
+
+void test_vst1_bf16_x2 (bfloat16_t * ptr, bfloat16x4x2_t val)
+{
+    vst1_bf16_x2 (ptr, val);
+}
+
+/* { dg-final { scan-assembler-times {vst1.16\t\{d[0-9]+-d[0-9]+\}, \[r[0-9]+\]\n} 1 } }  */
diff --git a/gcc/testsuite/gcc.target/arm/simd/vst1_fp16_xN_1.c b/gcc/testsuite/gcc.target/arm/simd/vst1_fp16_xN_1.c
new file mode 100644
index 0000000..523aec9
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/simd/vst1_fp16_xN_1.c
@@ -0,0 +1,13 @@
+/* { dg-do assemble } */
+/* { dg-require-effective-target arm_neon_fp16_ok } */
+/* { dg-options "-save-temps -O2" } */
+/* { dg-add-options arm_neon_fp16 } */
+
+#include "arm_neon.h"
+
+void test_vst1_f16_x2 (float16_t * ptr, float16x4x2_t val)
+{
+    vst1_f16_x2 (ptr, val);
+}
+
+/* { dg-final { scan-assembler-times {vst1.16\t\{d[0-9]+-d[0-9]+\}, \[r[0-9]+\]\n} 1 } }  */
diff --git a/gcc/testsuite/gcc.target/arm/simd/vst1_p64_xN_1.c b/gcc/testsuite/gcc.target/arm/simd/vst1_p64_xN_1.c
new file mode 100644
index 0000000..f590ebd
--- /dev/null
+++ b/gcc/testsuite/gcc.target/arm/simd/vst1_p64_xN_1.c
@@ -0,0 +1,13 @@
+/* { dg-do assemble } */
+/* { dg-require-effective-target arm_crypto_ok } */
+/* { dg-options "-save-temps -O2" } */
+/* { dg-add-options arm_crypto } */
+
+#include "arm_neon.h"
+
+void test_vst1_p64_x2 (poly64_t * ptr, poly64x1x2_t val)
+{
+    vst1_p64_x2 (ptr, val);
+}
+
+/* { dg-final { scan-assembler-times {vst1.64\t\{d[0-9]+-d[0-9]+\}, \[r[0-9]+:64\]\n} 1 } }  */
\ No newline at end of file