RISC-V: Add test cases for unsigned scalar SAT_MUL from uint128_t

Add run and tree-optimized check for unsigned scalar SAT_MUL from
uint128_t.

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/sat/sat_arith.h: Add test helper macros.
	* gcc.target/riscv/sat/sat_arith_data.h: Add test data for
	run test.
	* gcc.target/riscv/sat/sat_u_mul-1-u16-from-u128.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-1-u32-from-u128.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-1-u64-from-u128.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-1-u8-from-u128.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-run-1-u16-from-u128.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-run-1-u32-from-u128.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-run-1-u64-from-u128.c: New test.
	* gcc.target/riscv/sat/sat_u_mul-run-1-u8-from-u128.c: New test.

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

10 files changed, 193 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_arith.h b/gcc/testsuite/gcc.target/riscv/sat/sat_arith.h
index 84f013f..3de89f4 100644
--- a/gcc/testsuite/gcc.target/riscv/sat/sat_arith.h
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_arith.h
@@ -4,6 +4,8 @@
 #include <stdint-gcc.h>
 #include <stdbool.h>
 
+typedef __uint128_t uint128_t;
+
 /******************************************************************************/
 /* Saturation Add (unsigned and signed)                                       */
 /******************************************************************************/
@@ -648,4 +650,25 @@ sat_s_trunc_##WT##_to_##NT##_fmt_8 (WT x)             \
 #define RUN_SAT_S_TRUNC_FMT_8(NT, WT, x) sat_s_trunc_##WT##_to_##NT##_fmt_8 (x)
 #define RUN_SAT_S_TRUNC_FMT_8_WRAP(NT, WT, x) RUN_SAT_S_TRUNC_FMT_8(NT, WT, x)
 
+/******************************************************************************/
+/* Saturation Mult (unsigned and signed)                                  */
+/******************************************************************************/
+
+#define DEF_SAT_U_MUL_FMT_1(NT, WT)             \
+NT __attribute__((noinline))                    \
+sat_u_mul_##NT##_from_##WT##_fmt_1 (NT a, NT b) \
+{                                               \
+  WT x = (WT)a * (WT)b;                         \
+  NT max = -1;                                  \
+  if (x > (WT)(max))                            \
+    return max;                                 \
+  else                                          \
+    return (NT)x;                               \
+}
+
+#define DEF_SAT_U_MUL_FMT_1_WRAP(NT, WT) DEF_SAT_U_MUL_FMT_1(NT, WT)
+#define RUN_SAT_U_MUL_FMT_1(NT, WT, a, b) \
+  sat_u_mul_##NT##_from_##WT##_fmt_1 (a, b)
+#define RUN_SAT_U_MUL_FMT_1_WRAP(NT, WT, a, b) RUN_SAT_U_MUL_FMT_1(NT, WT, a, b)
+
 #endif
diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_arith_data.h b/gcc/testsuite/gcc.target/riscv/sat/sat_arith_data.h
index f100688..bd33ff1 100644
--- a/gcc/testsuite/gcc.target/riscv/sat/sat_arith_data.h
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_arith_data.h
@@ -12,6 +12,7 @@
 
 #define TEST_BINARY_STRUCT_NAME(T, NAME) test_##T##_##NAME##_s
 #define TEST_BINARY_STRUCT_DECL(T, NAME) struct TEST_BINARY_STRUCT_NAME(T, NAME)
+#define TEST_BINARY_STRUCT_DECL_WRAP(T, NAME) TEST_BINARY_STRUCT_DECL(T, NAME)
 #define TEST_BINARY_STRUCT(T, NAME)       \
   struct TEST_BINARY_STRUCT_NAME(T, NAME) \
     {                                     \
@@ -37,6 +38,11 @@ TEST_BINARY_STRUCT (uint16_t, usadd)
 TEST_BINARY_STRUCT (uint32_t, usadd)
 TEST_BINARY_STRUCT (uint64_t, usadd)
 
+TEST_BINARY_STRUCT (uint8_t, usmul)
+TEST_BINARY_STRUCT (uint16_t, usmul)
+TEST_BINARY_STRUCT (uint32_t, usmul)
+TEST_BINARY_STRUCT (uint64_t, usmul)
+
 TEST_BINARY_STRUCT (int8_t,  ssadd)
 TEST_BINARY_STRUCT (int16_t, ssadd)
 TEST_BINARY_STRUCT (int32_t, ssadd)
@@ -433,4 +439,60 @@ TEST_BINARY_STRUCT_DECL(int64_t, sssub) TEST_BINARY_DATA(int64_t, sssub)[] =
   {  9223372036854775806ll,   9223372036854775800ll,                       6},
 };
 
+TEST_BINARY_STRUCT_DECL(uint8_t, usmul) TEST_BINARY_DATA(uint8_t, usmul)[] =
+{
+  {      0,     0,      0, },
+  {      0,     1,      0, },
+  {      1,     1,      1, },
+  {      1,   127,    127, },
+  {      2,   127,    254, },
+  {      3,   127,    255, },
+  {    127,   127,    255, },
+  {      1,   255,    255, },
+  {    127,   255,    255, },
+  {    255,   255,    255, },
+};
+
+TEST_BINARY_STRUCT_DECL(uint16_t, usmul) TEST_BINARY_DATA(uint16_t, usmul)[] =
+{
+  {      0,     0,      0, },
+  {      0,     1,      0, },
+  {      1,     1,      1, },
+  {      1, 32767,  32767, },
+  {      2, 32767,  65534, },
+  {      3, 32767,  65535, },
+  {  32767, 32767,  65535, },
+  {      1, 65535,  65535, },
+  {  32767, 65535,  65535, },
+  {  65535, 65535,  65535, },
+};
+
+TEST_BINARY_STRUCT_DECL(uint32_t, usmul) TEST_BINARY_DATA(uint32_t, usmul)[] =
+{
+  {          0,          0,          0, },
+  {          0,          1,          0, },
+  {          1,          1,          1, },
+  {          1, 2147483647, 2147483647, },
+  {          2, 2147483647, 4294967294, },
+  {          3, 2147483647, 4294967295, },
+  { 2147483647, 2147483647, 4294967295, },
+  {          1, 4294967295, 4294967295, },
+  { 2147483647, 4294967295, 4294967295, },
+  { 4294967295, 4294967295, 4294967295, },
+};
+
+TEST_BINARY_STRUCT_DECL(uint64_t, usmul) TEST_BINARY_DATA(uint64_t, usmul)[] =
+{
+  {                       0,                       0,                       0, },
+  {                       0,                       1,                       0, },
+  {                       1,                       1,                       1, },
+  {                       1,  9223372036854775807ull,  9223372036854775807ull, },
+  {                       2,  9223372036854775807ull, 18446744073709551614ull, },
+  {                       3,  9223372036854775807ull, 18446744073709551615ull, },
+  {  9223372036854775807ull,  9223372036854775807ull, 18446744073709551615ull, },
+  {                       1, 18446744073709551615ull, 18446744073709551615ull, },
+  {  9223372036854775807ull, 18446744073709551615ull, 18446744073709551615ull, },
+  { 18446744073709551615ull, 18446744073709551615ull, 18446744073709551615ull, },
+};
+
 #endif
diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-u16-from-u128.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-u16-from-u128.c
new file mode 100644
index 0000000..b60c91c
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-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_1_WRAP(NT, WT)
+
+/* { dg-final { scan-tree-dump-times ".SAT_MUL" 1 "optimized" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-u32-from-u128.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-u32-from-u128.c
new file mode 100644
index 0000000..1ac6f39
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-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_1_WRAP(NT, WT)
+
+/* { dg-final { scan-tree-dump-times ".SAT_MUL" 1 "optimized" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-u64-from-u128.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-u64-from-u128.c
new file mode 100644
index 0000000..af12d82
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-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_1_WRAP(NT, WT)
+
+/* { dg-final { scan-tree-dump-times ".SAT_MUL" 1 "optimized" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-u8-from-u128.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-u8-from-u128.c
new file mode 100644
index 0000000..c73353a
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-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_1_WRAP(NT, WT)
+
+/* { dg-final { scan-tree-dump-times ".SAT_MUL" 1 "optimized" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u16-from-u128.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u16-from-u128.c
new file mode 100644
index 0000000..395a4cb
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u16-from-u128.c
@@ -0,0 +1,16 @@
+/* { dg-do run { target { riscv_v } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "sat_arith.h"
+#include "sat_arith_data.h"
+
+#define NT               uint16_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_1_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_1_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"
diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u32-from-u128.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u32-from-u128.c
new file mode 100644
index 0000000..3c8b728
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u32-from-u128.c
@@ -0,0 +1,16 @@
+/* { dg-do run { target { riscv_v } } } */
+/* { 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_1_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_1_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"
diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u64-from-u128.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u64-from-u128.c
new file mode 100644
index 0000000..e5572de
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u64-from-u128.c
@@ -0,0 +1,16 @@
+/* { dg-do run { target { riscv_v } } } */
+/* { 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_1_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_1_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"
diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u8-from-u128.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u8-from-u128.c
new file mode 100644
index 0000000..2e9c39a
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u8-from-u128.c
@@ -0,0 +1,16 @@
+/* { dg-do run { target { riscv_v } } } */
+/* { 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_1_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_1_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"