RISC-V: Add testcase for unsigned scalar SAT_MUL form 6

The form 6 of unsigned scalar SAT_MUL has supported from the
previous change.  Thus, add the test cases to make sure it
works well.

The below test suites are passed for this patch series.
 * The rv64gcv fully regression test.

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/sat/sat_arith.h: Add test helper macros.
	* gcc.target/riscv/sat/sat_u_mul-7-u16-from-u128.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-7-u16-from-u32.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-7-u16-from-u64.rv32.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-7-u16-from-u64.rv64.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-7-u32-from-u128.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-7-u32-from-u64.rv32.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-7-u32-from-u64.rv64.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-7-u64-from-u128.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-7-u8-from-u128.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-7-u8-from-u16.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-7-u8-from-u32.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-7-u8-from-u64.rv32.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-7-u8-from-u64.rv64.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-run-7-u16-from-u128.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-run-7-u16-from-u32.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-run-7-u16-from-u64.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-run-7-u32-from-u128.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-run-7-u32-from-u64.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-run-7-u64-from-u128.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-run-7-u8-from-u128.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-run-7-u8-from-u16.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-run-7-u8-from-u32.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-run-7-u8-from-u64.c: New test.

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

gcc/testsuite/gcc.target/riscv/sat/sat_arith.h

@@ -756,4 +756,18 @@ sat_u_mul_##NT##_from_##WT##_fmt_5 (NT a, NT b) \
   sat_u_mul_##NT##_from_##WT##_fmt_5 (a, b)
 #define RUN_SAT_U_MUL_FMT_5_WRAP(NT, WT, a, b) RUN_SAT_U_MUL_FMT_5(NT, WT, a, b)
 
+#define DEF_SAT_U_MUL_FMT_6(NT, WT)             \
+NT __attribute__((noinline))                    \
+sat_u_mul_##NT##_from_##WT##_fmt_6 (NT a, NT b) \
+{                                               \
+  WT x = (WT)a * (WT)b;                         \
+  NT max = -1;                                  \
+  return x > (WT)(max) ? max : (NT)x;           \
+}
+
+#define DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT) DEF_SAT_U_MUL_FMT_6(NT, WT)
+#define RUN_SAT_U_MUL_FMT_6(NT, WT, a, b) \
+  sat_u_mul_##NT##_from_##WT##_fmt_6 (a, b)
+#define RUN_SAT_U_MUL_FMT_6_WRAP(NT, WT, a, b) RUN_SAT_U_MUL_FMT_6(NT, WT, a, b)
+
 #endif

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-7-u16-from-u128.c

@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -fdump-tree-optimized" } */
+
+#include "sat_arith.h"
+
+#define NT uint16_t
+#define WT uint128_t
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+/* { dg-final { scan-tree-dump-times ".SAT_MUL" 1 "optimized" } } */

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-7-u16-from-u32.c

@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -fdump-tree-optimized" } */
+
+#include "sat_arith.h"
+
+#define NT uint16_t
+#define WT uint32_t
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+/* { dg-final { scan-tree-dump-times ".SAT_MUL" 1 "optimized" } } */

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-7-u16-from-u64.rv32.c

@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv32gc -mabi=ilp32 -fdump-tree-optimized" } */
+
+#include "sat_arith.h"
+
+#define NT uint16_t
+#define WT uint64_t
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+/* { dg-final { scan-tree-dump-times ".SAT_MUL" 1 "optimized" } } */

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-7-u16-from-u64.rv64.c

@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -fdump-tree-optimized" } */
+
+#include "sat_arith.h"
+
+#define NT uint16_t
+#define WT uint64_t
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+/* { dg-final { scan-tree-dump-times ".SAT_MUL" 1 "optimized" } } */

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-7-u32-from-u128.c

@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -fdump-tree-optimized" } */
+
+#include "sat_arith.h"
+
+#define NT uint32_t
+#define WT uint128_t
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+/* { dg-final { scan-tree-dump-times ".SAT_MUL" 1 "optimized" } } */

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-7-u32-from-u64.rv32.c

@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv32gc -mabi=ilp32 -fdump-tree-optimized" } */
+
+#include "sat_arith.h"
+
+#define NT uint32_t
+#define WT uint64_t
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+/* { dg-final { scan-tree-dump-times ".SAT_MUL" 1 "optimized" } } */

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-7-u32-from-u64.rv64.c

@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -fdump-tree-optimized" } */
+
+#include "sat_arith.h"
+
+#define NT uint32_t
+#define WT uint64_t
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+/* { dg-final { scan-tree-dump-times ".SAT_MUL" 1 "optimized" } } */

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-7-u64-from-u128.c

@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -fdump-tree-optimized" } */
+
+#include "sat_arith.h"
+
+#define NT uint64_t
+#define WT uint128_t
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+/* { dg-final { scan-tree-dump-times ".SAT_MUL" 1 "optimized" } } */

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-7-u8-from-u128.c

@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -fdump-tree-optimized" } */
+
+#include "sat_arith.h"
+
+#define NT uint8_t
+#define WT uint128_t
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+/* { dg-final { scan-tree-dump-times ".SAT_MUL" 1 "optimized" } } */

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-7-u8-from-u16.c

@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -fdump-tree-optimized" } */
+
+#include "sat_arith.h"
+
+#define NT uint8_t
+#define WT uint16_t
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+/* { dg-final { scan-tree-dump-times ".SAT_MUL" 1 "optimized" } } */

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-7-u8-from-u32.c

@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -fdump-tree-optimized" } */
+
+#include "sat_arith.h"
+
+#define NT uint8_t
+#define WT uint32_t
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+/* { dg-final { scan-tree-dump-times ".SAT_MUL" 1 "optimized" } } */

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-7-u8-from-u64.rv32.c

@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv32gc -mabi=ilp32 -fdump-tree-optimized" } */
+
+#include "sat_arith.h"
+
+#define NT uint8_t
+#define WT uint64_t
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+/* { dg-final { scan-tree-dump-times ".SAT_MUL" 1 "optimized" } } */

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-7-u8-from-u64.rv64.c

@@ -0,0 +1,11 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -fdump-tree-optimized" } */
+
+#include "sat_arith.h"
+
+#define NT uint8_t
+#define WT uint64_t
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+/* { dg-final { scan-tree-dump-times ".SAT_MUL" 1 "optimized" } } */

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-7-u16-from-u128.c

@@ -0,0 +1,16 @@
+/* { dg-do run { target { rv64 } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "sat_arith.h"
+#include "sat_arith_data.h"
+
+#define NT               uint8_t
+#define WT               uint128_t
+#define NAME             usmul
+#define DATA             TEST_BINARY_DATA_WRAP(NT, NAME)
+#define T                TEST_BINARY_STRUCT_DECL_WRAP(NT, NAME)
+#define RUN_BINARY(x, y) RUN_SAT_U_MUL_FMT_6_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-7-u16-from-u32.c

@@ -0,0 +1,16 @@
+/* { dg-do run { target { rv32 || rv64 } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "sat_arith.h"
+#include "sat_arith_data.h"
+
+#define NT               uint16_t
+#define WT               uint32_t
+#define NAME             usmul
+#define DATA             TEST_BINARY_DATA_WRAP(NT, NAME)
+#define T                TEST_BINARY_STRUCT_DECL_WRAP(NT, NAME)
+#define RUN_BINARY(x, y) RUN_SAT_U_MUL_FMT_6_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-7-u16-from-u64.c

@@ -0,0 +1,16 @@
+/* { dg-do run { target { rv32 || rv64 } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "sat_arith.h"
+#include "sat_arith_data.h"
+
+#define NT               uint16_t
+#define WT               uint64_t
+#define NAME             usmul
+#define DATA             TEST_BINARY_DATA_WRAP(NT, NAME)
+#define T                TEST_BINARY_STRUCT_DECL_WRAP(NT, NAME)
+#define RUN_BINARY(x, y) RUN_SAT_U_MUL_FMT_6_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-7-u32-from-u128.c

@@ -0,0 +1,16 @@
+/* { dg-do run { target { rv64 } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "sat_arith.h"
+#include "sat_arith_data.h"
+
+#define NT               uint32_t
+#define WT               uint128_t
+#define NAME             usmul
+#define DATA             TEST_BINARY_DATA_WRAP(NT, NAME)
+#define T                TEST_BINARY_STRUCT_DECL_WRAP(NT, NAME)
+#define RUN_BINARY(x, y) RUN_SAT_U_MUL_FMT_6_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-7-u32-from-u64.c

@@ -0,0 +1,16 @@
+/* { dg-do run { target { rv32 || rv64 } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "sat_arith.h"
+#include "sat_arith_data.h"
+
+#define NT               uint32_t
+#define WT               uint64_t
+#define NAME             usmul
+#define DATA             TEST_BINARY_DATA_WRAP(NT, NAME)
+#define T                TEST_BINARY_STRUCT_DECL_WRAP(NT, NAME)
+#define RUN_BINARY(x, y) RUN_SAT_U_MUL_FMT_6_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-7-u64-from-u128.c

@@ -0,0 +1,16 @@
+/* { dg-do run { target { rv64 } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "sat_arith.h"
+#include "sat_arith_data.h"
+
+#define NT               uint64_t
+#define WT               uint128_t
+#define NAME             usmul
+#define DATA             TEST_BINARY_DATA_WRAP(NT, NAME)
+#define T                TEST_BINARY_STRUCT_DECL_WRAP(NT, NAME)
+#define RUN_BINARY(x, y) RUN_SAT_U_MUL_FMT_6_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-7-u8-from-u128.c

@@ -0,0 +1,16 @@
+/* { dg-do run { target { rv64 } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "sat_arith.h"
+#include "sat_arith_data.h"
+
+#define NT               uint8_t
+#define WT               uint128_t
+#define NAME             usmul
+#define DATA             TEST_BINARY_DATA_WRAP(NT, NAME)
+#define T                TEST_BINARY_STRUCT_DECL_WRAP(NT, NAME)
+#define RUN_BINARY(x, y) RUN_SAT_U_MUL_FMT_6_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-7-u8-from-u16.c

@@ -0,0 +1,16 @@
+/* { dg-do run { target { rv32 || rv64 } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "sat_arith.h"
+#include "sat_arith_data.h"
+
+#define NT               uint8_t
+#define WT               uint16_t
+#define NAME             usmul
+#define DATA             TEST_BINARY_DATA_WRAP(NT, NAME)
+#define T                TEST_BINARY_STRUCT_DECL_WRAP(NT, NAME)
+#define RUN_BINARY(x, y) RUN_SAT_U_MUL_FMT_6_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-7-u8-from-u32.c

@@ -0,0 +1,16 @@
+/* { dg-do run { target { rv32 || rv64 } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "sat_arith.h"
+#include "sat_arith_data.h"
+
+#define NT               uint8_t
+#define WT               uint32_t
+#define NAME             usmul
+#define DATA             TEST_BINARY_DATA_WRAP(NT, NAME)
+#define T                TEST_BINARY_STRUCT_DECL_WRAP(NT, NAME)
+#define RUN_BINARY(x, y) RUN_SAT_U_MUL_FMT_6_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"

gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-7-u8-from-u64.c

@@ -0,0 +1,16 @@
+/* { dg-do run { target { rv32 || rv64 } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "sat_arith.h"
+#include "sat_arith_data.h"
+
+#define NT               uint8_t
+#define WT               uint64_t
+#define NAME             usmul
+#define DATA             TEST_BINARY_DATA_WRAP(NT, NAME)
+#define T                TEST_BINARY_STRUCT_DECL_WRAP(NT, NAME)
+#define RUN_BINARY(x, y) RUN_SAT_U_MUL_FMT_6_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_6_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"