[gcc(refs/vendors/riscv/heads/gcc-15-with-riscv-opts)] RISC-V: Add test cases for mul based unsigned scalar SAT_MUL

[Jeff Law]

https://gcc.gnu.org/g:5b393ab7c3c30741322fd7b7c16cb90896c204a0

commit 5b393ab7c3c30741322fd7b7c16cb90896c204a0
Author: Pan Li <pan2.li@intel.com>
Date:   Sat Jul 26 16:38:23 2025 +0800

    RISC-V: Add test cases for mul based unsigned scalar SAT_MUL
    
    Add run and tree-optimized check for mul based unsigned scalar SAT_MUL
    instead of the widen_mul.
    
    gcc/testsuite/ChangeLog:
    
            * gcc.target/riscv/sat/sat_u_mul-run-1-u16-from-u64.c: Add rv64
            target for run.
            * gcc.target/riscv/sat/sat_u_mul-run-1-u32-from-u64.c: Ditto.
            * gcc.target/riscv/sat/sat_u_mul-run-1-u8-from-u64.c: Ditto.
            * gcc.target/riscv/sat/sat_u_mul-1-u16-from-u32.c: New test.
            * gcc.target/riscv/sat/sat_u_mul-1-u8-from-u16.c: New test.
            * gcc.target/riscv/sat/sat_u_mul-1-u8-from-u32.c: New test.
            * gcc.target/riscv/sat/sat_u_mul-2-u16-from-u64.c: New test.
            * gcc.target/riscv/sat/sat_u_mul-2-u32-from-u64.c: New test.
            * gcc.target/riscv/sat/sat_u_mul-2-u8-from-u64.c: New test.
            * gcc.target/riscv/sat/sat_u_mul-run-1-u16-from-u32.c: New test.
            * gcc.target/riscv/sat/sat_u_mul-run-1-u8-from-u16.c: New test.
            * gcc.target/riscv/sat/sat_u_mul-run-1-u8-from-u32.c: New test.
    
    Signed-off-by: Pan Li <pan2.li@intel.com>
    (cherry picked from commit 8166458f19846fb795e31d5cf2475e0bade9f546)

Diff:
---
 .../gcc.target/riscv/sat/sat_u_mul-1-u16-from-u32.c      | 11 +++++++++++
 .../gcc.target/riscv/sat/sat_u_mul-1-u8-from-u16.c       | 11 +++++++++++
 .../gcc.target/riscv/sat/sat_u_mul-1-u8-from-u32.c       | 11 +++++++++++
 .../gcc.target/riscv/sat/sat_u_mul-2-u16-from-u64.c      | 11 +++++++++++
 .../gcc.target/riscv/sat/sat_u_mul-2-u32-from-u64.c      | 11 +++++++++++
 .../gcc.target/riscv/sat/sat_u_mul-2-u8-from-u64.c       | 11 +++++++++++
 .../gcc.target/riscv/sat/sat_u_mul-run-1-u16-from-u32.c  | 16 ++++++++++++++++
 .../gcc.target/riscv/sat/sat_u_mul-run-1-u16-from-u64.c  |  2 +-
 .../gcc.target/riscv/sat/sat_u_mul-run-1-u32-from-u64.c  |  2 +-
 .../gcc.target/riscv/sat/sat_u_mul-run-1-u8-from-u16.c   | 16 ++++++++++++++++
 .../gcc.target/riscv/sat/sat_u_mul-run-1-u8-from-u32.c   | 16 ++++++++++++++++
 .../gcc.target/riscv/sat/sat_u_mul-run-1-u8-from-u64.c   |  2 +-
 12 files changed, 117 insertions(+), 3 deletions(-)

diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-u16-from-u32.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-u16-from-u32.c
new file mode 100644
index 000000000000..74092320dc17
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-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_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-u16.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-u8-from-u16.c
new file mode 100644
index 000000000000..ec79e5d77c8c
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-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_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-u32.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-u8-from-u32.c
new file mode 100644
index 000000000000..eb95184d2f25
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-1-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_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-2-u16-from-u64.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-2-u16-from-u64.c
new file mode 100644
index 000000000000..b1d33a940f97
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-2-u16-from-u64.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_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-2-u32-from-u64.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-2-u32-from-u64.c
new file mode 100644
index 000000000000..af5ffecf6e4d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-2-u32-from-u64.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_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-2-u8-from-u64.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-2-u8-from-u64.c
new file mode 100644
index 000000000000..d65cab0ae564
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-2-u8-from-u64.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_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-u32.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u16-from-u32.c
new file mode 100644
index 000000000000..e212391022bd
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-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_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-u16-from-u64.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u16-from-u64.c
index 065afb84f1d9..79d3fb3cfe3e 100644
--- a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u16-from-u64.c
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u16-from-u64.c
@@ -1,4 +1,4 @@
-/* { dg-do run { target { rv32 } } } */
+/* { dg-do run { target { rv32 || rv64 } } } */
 /* { dg-additional-options "-std=c99" } */
 
 #include "sat_arith.h"
diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u32-from-u64.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u32-from-u64.c
index 062bbc954305..ad63db3bd9f5 100644
--- a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u32-from-u64.c
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u32-from-u64.c
@@ -1,4 +1,4 @@
-/* { dg-do run { target { rv32 } } } */
+/* { dg-do run { target { rv32 || rv64 } } } */
 /* { dg-additional-options "-std=c99" } */
 
 #include "sat_arith.h"
diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u8-from-u16.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u8-from-u16.c
new file mode 100644
index 000000000000..f5a0ab59948d
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-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_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-u32.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u8-from-u32.c
new file mode 100644
index 000000000000..32074a4d9e33
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-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_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-u64.c b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u8-from-u64.c
index e6f632bab0f5..16ca90504a1e 100644
--- a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u8-from-u64.c
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-1-u8-from-u64.c
@@ -1,4 +1,4 @@
-/* { dg-do run { target { rv32 } } } */
+/* { dg-do run { target { rv32 || rv64 } } } */
 /* { dg-additional-options "-std=c99" } */
 
 #include "sat_arith.h"