https://gcc.gnu.org/g:f59c712d537a6674035ef675ed539f9a5c818666
commit f59c712d537a6674035ef675ed539f9a5c818666
Author: Pan Li <pan2...@intel.com>
Date: Mon Sep 1 09:43:24 2025 +0800
RISC-V: Add test case of unsigned scalar SAT_MUL form 5 for widen-mul
The form 5 of unsigned scalar SAT_MUL is covered in middle-expand
alreay, add test case here to cover form 5.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/sat/sat_arith.h: Add test helper macros.
* gcc.target/riscv/sat/sat_u_mul-6-u16-from-u128.c: New test.
* gcc.target/riscv/sat/sat_u_mul-6-u32-from-u128.c: New test.
* gcc.target/riscv/sat/sat_u_mul-6-u64-from-u128.c: New test.
* gcc.target/riscv/sat/sat_u_mul-6-u8-from-u128.c: New test.
* gcc.target/riscv/sat/sat_u_mul-run-6-u16-from-u128.c: New test.
* gcc.target/riscv/sat/sat_u_mul-run-6-u32-from-u128.c: New test.
* gcc.target/riscv/sat/sat_u_mul-run-6-u64-from-u128.c: New test.
* gcc.target/riscv/sat/sat_u_mul-run-6-u8-from-u128.c: New test.
Signed-off-by: Pan Li <pan2...@intel.com>
(cherry picked from commit 80e85c627a38e2206a970cc1630d958e45cdfdf5)
Diff:
---
gcc/testsuite/gcc.target/riscv/sat/sat_arith.h | 15 +++++++++++++++
.../gcc.target/riscv/sat/sat_u_mul-6-u16-from-u128.c | 11 +++++++++++
.../gcc.target/riscv/sat/sat_u_mul-6-u32-from-u128.c | 11 +++++++++++
.../gcc.target/riscv/sat/sat_u_mul-6-u64-from-u128.c | 11 +++++++++++
.../gcc.target/riscv/sat/sat_u_mul-6-u8-from-u128.c | 11 +++++++++++
.../gcc.target/riscv/sat/sat_u_mul-run-6-u16-from-u128.c | 16 ++++++++++++++++
.../gcc.target/riscv/sat/sat_u_mul-run-6-u32-from-u128.c | 16 ++++++++++++++++
.../gcc.target/riscv/sat/sat_u_mul-run-6-u64-from-u128.c | 16 ++++++++++++++++
.../gcc.target/riscv/sat/sat_u_mul-run-6-u8-from-u128.c | 16 ++++++++++++++++
9 files changed, 123 insertions(+)
diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_arith.h
b/gcc/testsuite/gcc.target/riscv/sat/sat_arith.h
index 035545c9e0fb..7cd16a296484 100644
--- a/gcc/testsuite/gcc.target/riscv/sat/sat_arith.h
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_arith.h
@@ -741,4 +741,19 @@ sat_u_mul_##NT##_from_##WT##_fmt_4 (NT a, NT b) \
sat_u_mul_##NT##_from_##WT##_fmt_4 (a, b)
#define RUN_SAT_U_MUL_FMT_4_WRAP(NT, WT, a, b) RUN_SAT_U_MUL_FMT_4(NT, WT, a,
b)
+#define DEF_SAT_U_MUL_FMT_5(NT, WT) \
+NT __attribute__((noinline)) \
+sat_u_mul_##NT##_from_##WT##_fmt_5 (NT a, NT b) \
+{ \
+ WT x = (WT)a * (WT)b; \
+ NT hi = x >> (sizeof(NT) * 8); \
+ NT lo = (NT)x; \
+ return lo | -!!hi; \
+}
+
+#define DEF_SAT_U_MUL_FMT_5_WRAP(NT, WT) DEF_SAT_U_MUL_FMT_5(NT, WT)
+#define RUN_SAT_U_MUL_FMT_5(NT, WT, a, 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)
+
#endif
diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-6-u16-from-u128.c
b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-6-u16-from-u128.c
new file mode 100644
index 000000000000..d58966500369
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-6-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_5_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-6-u32-from-u128.c
b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-6-u32-from-u128.c
new file mode 100644
index 000000000000..6a0742284928
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-6-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_5_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-6-u64-from-u128.c
b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-6-u64-from-u128.c
new file mode 100644
index 000000000000..438b420f95a3
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-6-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_5_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-6-u8-from-u128.c
b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-6-u8-from-u128.c
new file mode 100644
index 000000000000..9dbb434d56a5
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-6-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_5_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-6-u16-from-u128.c
b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-6-u16-from-u128.c
new file mode 100644
index 000000000000..88fe3a74e568
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-6-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_5_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_5_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"
diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-6-u32-from-u128.c
b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-6-u32-from-u128.c
new file mode 100644
index 000000000000..c8d802efdf41
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-6-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_5_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_5_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"
diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-6-u64-from-u128.c
b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-6-u64-from-u128.c
new file mode 100644
index 000000000000..acc999fc748a
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-6-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_5_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_5_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"
diff --git a/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-6-u8-from-u128.c
b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-6-u8-from-u128.c
new file mode 100644
index 000000000000..88fe3a74e568
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat/sat_u_mul-run-6-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_5_WRAP(NT, WT, x, y)
+
+DEF_SAT_U_MUL_FMT_5_WRAP(NT, WT)
+
+#include "scalar_sat_binary_run_xxx.h"
