RISC-V: Add testcases for unsigned .SAT_ADD vector form 3

After the middle-end support the form 3 of unsigned SAT_ADD and
the RISC-V backend implement the .SAT_ADD for vector mode, add
more test case to cover the form 3.

Form 3:
  #define DEF_VEC_SAT_U_ADD_FMT_3(T)                                   \
  void __attribute__((noinline))                                       \
  vec_sat_u_add_##T##_fmt_3 (T *out, T *op_1, T *op_2, unsigned limit) \
  {                                                                    \
    unsigned i;                                                        \
    for (i = 0; i < limit; i++)                                        \
      {                                                                \
        T x = op_1[i];                                                 \
        T y = op_2[i];                                                 \
        T ret;                                                         \
        T overflow = __builtin_add_overflow (x, y, &ret);              \
        out[i] = (T)(-overflow) | ret;                                 \
      }                                                                \
  }

Passed the rv64gcv regression tests.

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/rvv/autovec/binop/vec_sat_arith.h: Add helper
	macro for testing.
	* gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-10.c: New test.
	* gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-11.c: New test.
	* gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-12.c: New test.
	* gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-9.c: New test.
	* gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-10.c: New test.
	* gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-11.c: New test.
	* gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-12.c: New test.
	* gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-9.c: New test.

Signed-off-by: Pan Li <pan2.li@intel.com>

9 files changed, 397 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_arith.h b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_arith.h
index 57b1bce..76f393f 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_arith.h
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_arith.h
@@ -32,12 +32,30 @@ vec_sat_u_add_##T##_fmt_2 (T *out, T *op_1, T *op_2, unsigned limit) \
     }                                                                \
 }
 
+#define DEF_VEC_SAT_U_ADD_FMT_3(T)                                   \
+void __attribute__((noinline))                                       \
+vec_sat_u_add_##T##_fmt_3 (T *out, T *op_1, T *op_2, unsigned limit) \
+{                                                                    \
+  unsigned i;                                                        \
+  for (i = 0; i < limit; i++)                                        \
+    {                                                                \
+      T x = op_1[i];                                                 \
+      T y = op_2[i];                                                 \
+      T ret;                                                         \
+      T overflow = __builtin_add_overflow (x, y, &ret);              \
+      out[i] = (T)(-overflow) | ret;                                 \
+    }                                                                \
+}
+
 #define RUN_VEC_SAT_U_ADD_FMT_1(T, out, op_1, op_2, N) \
   vec_sat_u_add_##T##_fmt_1(out, op_1, op_2, N)
 
 #define RUN_VEC_SAT_U_ADD_FMT_2(T, out, op_1, op_2, N) \
   vec_sat_u_add_##T##_fmt_2(out, op_1, op_2, N)
 
+#define RUN_VEC_SAT_U_ADD_FMT_3(T, out, op_1, op_2, N) \
+  vec_sat_u_add_##T##_fmt_3(out, op_1, op_2, N)
+
 /******************************************************************************/
 /* Saturation Sub (Unsigned and Signed)                                       */
 /******************************************************************************/
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-10.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-10.c
new file mode 100644
index 0000000..b5dfaaf
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-10.c
@@ -0,0 +1,20 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d -O3 -ftree-vectorize -fdump-rtl-expand-details -fno-schedule-insns -fno-schedule-insns2" } */
+/* { dg-skip-if "" { *-*-* } { "-flto" } } */
+/* { dg-final { check-function-bodies "**" "" } } */
+
+#include "vec_sat_arith.h"
+
+/*
+** vec_sat_u_add_uint16_t_fmt_3:
+** ...
+** vsetvli\s+[atx][0-9]+,\s*[atx][0-9]+,\s*e16,\s*m1,\s*ta,\s*ma
+** ...
+** vle16\.v\s+v[0-9]+,\s*0\([atx][0-9]+\)
+** vle16\.v\s+v[0-9]+,\s*0\([atx][0-9]+\)
+** vsaddu\.vv\s+v[0-9]+,\s*v[0-9]+,\s*v[0-9]+
+** ...
+*/
+DEF_VEC_SAT_U_ADD_FMT_3(uint16_t)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_ADD " 4 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-11.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-11.c
new file mode 100644
index 0000000..84b55d0
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-11.c
@@ -0,0 +1,20 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d -O3 -ftree-vectorize -fdump-rtl-expand-details -fno-schedule-insns -fno-schedule-insns2" } */
+/* { dg-skip-if "" { *-*-* } { "-flto" } } */
+/* { dg-final { check-function-bodies "**" "" } } */
+
+#include "vec_sat_arith.h"
+
+/*
+** vec_sat_u_add_uint32_t_fmt_3:
+** ...
+** vsetvli\s+[atx][0-9]+,\s*[atx][0-9]+,\s*e32,\s*m1,\s*ta,\s*ma
+** ...
+** vle32\.v\s+v[0-9]+,\s*0\([atx][0-9]+\)
+** vle32\.v\s+v[0-9]+,\s*0\([atx][0-9]+\)
+** vsaddu\.vv\s+v[0-9]+,\s*v[0-9]+,\s*v[0-9]+
+** ...
+*/
+DEF_VEC_SAT_U_ADD_FMT_3(uint32_t)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_ADD " 4 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-12.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-12.c
new file mode 100644
index 0000000..90332c2
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-12.c
@@ -0,0 +1,20 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d -O3 -ftree-vectorize -fdump-rtl-expand-details -fno-schedule-insns -fno-schedule-insns2" } */
+/* { dg-skip-if "" { *-*-* } { "-flto" } } */
+/* { dg-final { check-function-bodies "**" "" } } */
+
+#include "vec_sat_arith.h"
+
+/*
+** vec_sat_u_add_uint64_t_fmt_3:
+** ...
+** vsetvli\s+[atx][0-9]+,\s*[atx][0-9]+,\s*e64,\s*m1,\s*ta,\s*ma
+** ...
+** vle64\.v\s+v[0-9]+,\s*0\([atx][0-9]+\)
+** vle64\.v\s+v[0-9]+,\s*0\([atx][0-9]+\)
+** vsaddu\.vv\s+v[0-9]+,\s*v[0-9]+,\s*v[0-9]+
+** ...
+*/
+DEF_VEC_SAT_U_ADD_FMT_3(uint64_t)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_ADD " 4 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-9.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-9.c
new file mode 100644
index 0000000..1526657
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-9.c
@@ -0,0 +1,19 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d -O3 -ftree-vectorize -fdump-rtl-expand-details -fno-schedule-insns -fno-schedule-insns2" } */
+/* { dg-skip-if "" { *-*-* } { "-flto" } } */
+/* { dg-final { check-function-bodies "**" "" } } */
+
+#include "vec_sat_arith.h"
+
+/*
+** vec_sat_u_add_uint8_t_fmt_3:
+** ...
+** vsetvli\s+[atx][0-9]+,\s*[atx][0-9]+,\s*e8,\s*m1,\s*ta,\s*ma
+** vle8\.v\s+v[0-9]+,\s*0\([atx][0-9]+\)
+** vle8\.v\s+v[0-9]+,\s*0\([atx][0-9]+\)
+** vsaddu\.vv\s+v[0-9]+,\s*v[0-9]+,\s*v[0-9]+
+** ...
+*/
+DEF_VEC_SAT_U_ADD_FMT_3(uint8_t)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_ADD " 4 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-10.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-10.c
new file mode 100644
index 0000000..7039830
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-10.c
@@ -0,0 +1,75 @@
+/* { dg-do run { target { riscv_v } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "vec_sat_arith.h"
+
+#define T                  uint16_t
+#define N                  16
+#define RUN_VEC_SAT_BINARY RUN_VEC_SAT_U_ADD_FMT_3
+
+DEF_VEC_SAT_U_ADD_FMT_3(T)
+
+T test_data[][3][N] = {
+  {
+    {
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+    }, /* arg_0 */
+    {
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+    }, /* arg_1 */
+    {
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+    }, /* expect */
+  },
+  {
+    {
+      65535, 65535, 65535, 65535,
+      65535, 65535, 65535, 65535,
+      65535, 65535, 65535, 65535,
+      65535, 65535, 65535, 65535,
+    },
+    {
+      65535, 65535, 65535, 65535,
+      65535, 65535, 65535, 65535,
+      65535, 65535, 65535, 65535,
+      65535, 65535, 65535, 65535,
+    },
+    {
+      65535, 65535, 65535, 65535,
+      65535, 65535, 65535, 65535,
+      65535, 65535, 65535, 65535,
+      65535, 65535, 65535, 65535,
+    },
+  },
+  {
+    {
+	  0,     0,     1,     0,
+	  1,     2,     3,     0,
+	  1,     2,     3,     4,
+	  5, 65534, 65535,     9,
+    },
+    {
+	  0,     1,     1, 65534,
+      65534, 65534, 65534, 65535,
+      65535, 65535, 65535, 65535,
+      65535, 65535, 65535,     9,
+    },
+    {
+	  0,     1,     2, 65534,
+      65535, 65535, 65535, 65535,
+      65535, 65535, 65535, 65535,
+      65535, 65535, 65535,    18,
+    },
+  },
+};
+
+#include "vec_sat_binary.h"
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-11.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-11.c
new file mode 100644
index 0000000..f5b7957
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-11.c
@@ -0,0 +1,75 @@
+/* { dg-do run { target { riscv_v } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "vec_sat_arith.h"
+
+#define T                  uint32_t
+#define N                  16
+#define RUN_VEC_SAT_BINARY RUN_VEC_SAT_U_ADD_FMT_3
+
+DEF_VEC_SAT_U_ADD_FMT_3(T)
+
+T test_data[][3][N] = {
+  {
+    {
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+    }, /* arg_0 */
+    {
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+    }, /* arg_1 */
+    {
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+    }, /* expect */
+  },
+  {
+    {
+      4294967295, 4294967295, 4294967295, 4294967295,
+      4294967295, 4294967295, 4294967295, 4294967295,
+      4294967295, 4294967295, 4294967295, 4294967295,
+      4294967295, 4294967295, 4294967295, 4294967295,
+    },
+    {
+      4294967295, 4294967295, 4294967295, 4294967295,
+      4294967295, 4294967295, 4294967295, 4294967295,
+      4294967295, 4294967295, 4294967295, 4294967295,
+      4294967295, 4294967295, 4294967295, 4294967295,
+    },
+    {
+      4294967295, 4294967295, 4294967295, 4294967295,
+      4294967295, 4294967295, 4294967295, 4294967295,
+      4294967295, 4294967295, 4294967295, 4294967295,
+      4294967295, 4294967295, 4294967295, 4294967295,
+    },
+  },
+  {
+    {
+	       0,          0,          1,          0,
+	       1,          2,          3,          0,
+	       1,          2,          3,          4,
+	       5, 4294967294, 4294967295,          9,
+    },
+    {
+	       0,          1,          1, 4294967294,
+      4294967294, 4294967294, 4294967294, 4294967295,
+      4294967295, 4294967295, 4294967295, 4294967295,
+      4294967295, 4294967295, 4294967295,          9,
+    },
+    {
+	       0,          1,          2, 4294967294,
+      4294967295, 4294967295, 4294967295, 4294967295,
+      4294967295, 4294967295, 4294967295, 4294967295,
+      4294967295, 4294967295, 4294967295,         18,
+    },
+  },
+};
+
+#include "vec_sat_binary.h"
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-12.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-12.c
new file mode 100644
index 0000000..a500414
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-12.c
@@ -0,0 +1,75 @@
+/* { dg-do run { target { riscv_v } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "vec_sat_arith.h"
+
+#define T                  uint64_t
+#define N                  16
+#define RUN_VEC_SAT_BINARY RUN_VEC_SAT_U_ADD_FMT_3
+
+DEF_VEC_SAT_U_ADD_FMT_3(T)
+
+T test_data[][3][N] = {
+  {
+    {
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+    }, /* arg_0 */
+    {
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+    }, /* arg_1 */
+    {
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+    }, /* expect */
+  },
+  {
+    {
+      18446744073709551615u, 18446744073709551615u, 18446744073709551615u, 18446744073709551615u,
+      18446744073709551615u, 18446744073709551615u, 18446744073709551615u, 18446744073709551615u,
+      18446744073709551615u, 18446744073709551615u, 18446744073709551615u, 18446744073709551615u,
+      18446744073709551615u, 18446744073709551615u, 18446744073709551615u, 18446744073709551615u,
+    },
+    {
+      18446744073709551615u, 18446744073709551615u, 18446744073709551615u, 18446744073709551615u,
+      18446744073709551615u, 18446744073709551615u, 18446744073709551615u, 18446744073709551615u,
+      18446744073709551615u, 18446744073709551615u, 18446744073709551615u, 18446744073709551615u,
+      18446744073709551615u, 18446744073709551615u, 18446744073709551615u, 18446744073709551615u,
+    },
+    {
+      18446744073709551615u, 18446744073709551615u, 18446744073709551615u, 18446744073709551615u,
+      18446744073709551615u, 18446744073709551615u, 18446744073709551615u, 18446744073709551615u,
+      18446744073709551615u, 18446744073709551615u, 18446744073709551615u, 18446744073709551615u,
+      18446744073709551615u, 18446744073709551615u, 18446744073709551615u, 18446744073709551615u,
+    },
+  },
+  {
+    {
+			  0,                     0,                     1,                     0,
+			  1,                     2,                     3,                     0,
+			  1,                     2,                     3,                     4,
+			  5, 18446744073709551614u, 18446744073709551615u,                     9,
+    },
+    {
+			  0,                     1,                     1, 18446744073709551614u,
+      18446744073709551614u, 18446744073709551614u, 18446744073709551614u, 18446744073709551615u,
+      18446744073709551615u, 18446744073709551615u, 18446744073709551615u, 18446744073709551615u,
+      18446744073709551615u, 18446744073709551615u, 18446744073709551615u,                     9,
+    },
+    {
+			  0,                     1,                     2, 18446744073709551614u,
+      18446744073709551615u, 18446744073709551615u, 18446744073709551615u, 18446744073709551615u,
+      18446744073709551615u, 18446744073709551615u, 18446744073709551615u, 18446744073709551615u,
+      18446744073709551615u, 18446744073709551615u, 18446744073709551615u,                    18,
+    },
+  },
+};
+
+#include "vec_sat_binary.h"
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-9.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-9.c
new file mode 100644
index 0000000..31919ed
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-9.c
@@ -0,0 +1,75 @@
+/* { dg-do run { target { riscv_v } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "vec_sat_arith.h"
+
+#define T                  uint8_t
+#define N                  16
+#define RUN_VEC_SAT_BINARY RUN_VEC_SAT_U_ADD_FMT_3
+
+DEF_VEC_SAT_U_ADD_FMT_3(T)
+
+T test_data[][3][N] = {
+  {
+    {
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+    }, /* arg_0 */
+    {
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+    }, /* arg_1 */
+    {
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+      0, 0, 0, 0,
+    }, /* expect */
+  },
+  {
+    {
+      255, 255, 255, 255,
+      255, 255, 255, 255,
+      255, 255, 255, 255,
+      255, 255, 255, 255,
+    },
+    {
+      255, 255, 255, 255,
+      255, 255, 255, 255,
+      255, 255, 255, 255,
+      255, 255, 255, 255,
+    },
+    {
+      255, 255, 255, 255,
+      255, 255, 255, 255,
+      255, 255, 255, 255,
+      255, 255, 255, 255,
+    },
+  },
+  {
+    {
+	0,   0,   1,   0,
+	1,   2,   3,   0,
+	1,   2,   3,   4,
+	5, 254, 255,   9,
+    },
+    {
+	0,   1,   1, 254,
+      254, 254, 254, 255,
+      255, 255, 255, 255,
+      255, 255, 255,   9,
+    },
+    {
+	0,   1,   2, 254,
+      255, 255, 255, 255,
+      255, 255, 255, 255,
+      255, 255, 255,  18,
+    },
+  },
+};
+
+#include "vec_sat_binary.h"