RISC-V: Add testcases for unsigned .SAT_ADD vector form 6

After the middle-end support the form 6 of unsigned SAT_ADD and
the RISC-V backend implement the .SAT_ADD for vector mode, add
more test case to cover the form 6.

Form 6:
  #define DEF_VEC_SAT_U_ADD_FMT_6(T)                                   \
  void __attribute__((noinline))                                       \
  vec_sat_u_add_##T##_fmt_6 (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];                                                 \
        out[i] = x <= (T)(x + y) ? (x + y) : -1;                       \
      }                                                                \
  }

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-21.c: New test.
	* gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-22.c: New test.
	* gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-23.c: New test.
	* gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-24.c: New test.
	* gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-21.c: New test.
	* gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-22.c: New test.
	* gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-23.c: New test.
	* gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-24.c: New test.

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

9 files changed, 395 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 1f2ee31..0f08822 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
@@ -75,6 +75,19 @@ vec_sat_u_add_##T##_fmt_5 (T *out, T *op_1, T *op_2, unsigned limit) \
     }                                                                \
 }
 
+#define DEF_VEC_SAT_U_ADD_FMT_6(T)                                   \
+void __attribute__((noinline))                                       \
+vec_sat_u_add_##T##_fmt_6 (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];                                                 \
+      out[i] = x <= (T)(x + y) ? (x + y) : -1;                       \
+    }                                                                \
+}
+
 #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)
 
@@ -90,6 +103,9 @@ vec_sat_u_add_##T##_fmt_5 (T *out, T *op_1, T *op_2, unsigned limit) \
 #define RUN_VEC_SAT_U_ADD_FMT_5(T, out, op_1, op_2, N) \
   vec_sat_u_add_##T##_fmt_5(out, op_1, op_2, N)
 
+#define RUN_VEC_SAT_U_ADD_FMT_6(T, out, op_1, op_2, N) \
+  vec_sat_u_add_##T##_fmt_6(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-21.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-21.c
new file mode 100644
index 0000000..e53c3c9
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-21.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_6:
+** ...
+** 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_6(uint8_t)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_ADD " 2 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-22.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-22.c
new file mode 100644
index 0000000..5fb5f66
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-22.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_6:
+** ...
+** 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_6(uint16_t)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_ADD " 2 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-23.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-23.c
new file mode 100644
index 0000000..20927b7
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-23.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_6:
+** ...
+** 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_6(uint32_t)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_ADD " 2 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-24.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-24.c
new file mode 100644
index 0000000..b898f69
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-24.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_6:
+** ...
+** 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_6(uint64_t)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_ADD " 2 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-21.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-21.c
new file mode 100644
index 0000000..b5ce31b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-21.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_6
+
+DEF_VEC_SAT_U_ADD_FMT_6(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"
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-22.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-22.c
new file mode 100644
index 0000000..611281e
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-22.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_6
+
+DEF_VEC_SAT_U_ADD_FMT_6(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-23.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-23.c
new file mode 100644
index 0000000..b707756
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-23.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_6
+
+DEF_VEC_SAT_U_ADD_FMT_6(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-24.c b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-24.c
new file mode 100644
index 0000000..9d8e918
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/binop/vec_sat_u_add-run-24.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_6
+
+DEF_VEC_SAT_U_ADD_FMT_6(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"