https://gcc.gnu.org/g:dd2d4b3fd87241dca658b68b4f9eef533b7fad36
commit r15-4259-gdd2d4b3fd87241dca658b68b4f9eef533b7fad36
Author: Pan Li <pan2...@intel.com>
Date: Thu Oct 10 16:24:08 2024 +0800
RISC-V: Add testcases for form 8 of scalar signed SAT_TRUNC
Form 8:
#define DEF_SAT_S_TRUNC_FMT_8(NT, WT, NT_MIN, NT_MAX) \
NT __attribute__((noinline)) \
sat_s_trunc_##WT##_to_##NT##_fmt_8 (WT x) \
{ \
NT trunc = (NT)x; \
return (WT)NT_MIN > x || x >= (WT)NT_MAX \
? x < 0 ? NT_MIN : NT_MAX \
: trunc; \
}
The below test are passed for this patch.
* The rv64gcv fully regression test.
It is test only patch and obvious up to a point, will commit it
directly if no comments in next 48H.
gcc/testsuite/ChangeLog:
* gcc.target/riscv/sat_arith.h: Add test helper macros.
* gcc.target/riscv/sat_s_trunc-8-i16-to-i8.c: New test.
* gcc.target/riscv/sat_s_trunc-8-i32-to-i16.c: New test.
* gcc.target/riscv/sat_s_trunc-8-i32-to-i8.c: New test.
* gcc.target/riscv/sat_s_trunc-8-i64-to-i16.c: New test.
* gcc.target/riscv/sat_s_trunc-8-i64-to-i32.c: New test.
* gcc.target/riscv/sat_s_trunc-8-i64-to-i8.c: New test.
* gcc.target/riscv/sat_s_trunc-run-8-i16-to-i8.c: New test.
* gcc.target/riscv/sat_s_trunc-run-8-i32-to-i16.c: New test.
* gcc.target/riscv/sat_s_trunc-run-8-i32-to-i8.c: New test.
* gcc.target/riscv/sat_s_trunc-run-8-i64-to-i16.c: New test.
* gcc.target/riscv/sat_s_trunc-run-8-i64-to-i32.c: New test.
* gcc.target/riscv/sat_s_trunc-run-8-i64-to-i8.c: New test.
Signed-off-by: Pan Li <pan2...@intel.com>
Diff:
---
gcc/testsuite/gcc.target/riscv/sat_arith.h | 15 ++++++++++++
.../gcc.target/riscv/sat_s_trunc-8-i16-to-i8.c | 26 ++++++++++++++++++++
.../gcc.target/riscv/sat_s_trunc-8-i32-to-i16.c | 28 ++++++++++++++++++++++
.../gcc.target/riscv/sat_s_trunc-8-i32-to-i8.c | 26 ++++++++++++++++++++
.../gcc.target/riscv/sat_s_trunc-8-i64-to-i16.c | 28 ++++++++++++++++++++++
.../gcc.target/riscv/sat_s_trunc-8-i64-to-i32.c | 26 ++++++++++++++++++++
.../gcc.target/riscv/sat_s_trunc-8-i64-to-i8.c | 26 ++++++++++++++++++++
.../gcc.target/riscv/sat_s_trunc-run-8-i16-to-i8.c | 16 +++++++++++++
.../riscv/sat_s_trunc-run-8-i32-to-i16.c | 16 +++++++++++++
.../gcc.target/riscv/sat_s_trunc-run-8-i32-to-i8.c | 16 +++++++++++++
.../riscv/sat_s_trunc-run-8-i64-to-i16.c | 16 +++++++++++++
.../riscv/sat_s_trunc-run-8-i64-to-i32.c | 16 +++++++++++++
.../gcc.target/riscv/sat_s_trunc-run-8-i64-to-i8.c | 16 +++++++++++++
13 files changed, 271 insertions(+)
diff --git a/gcc/testsuite/gcc.target/riscv/sat_arith.h
b/gcc/testsuite/gcc.target/riscv/sat_arith.h
index 189babd22f12..2cbd1f18c8d2 100644
--- a/gcc/testsuite/gcc.target/riscv/sat_arith.h
+++ b/gcc/testsuite/gcc.target/riscv/sat_arith.h
@@ -549,6 +549,18 @@ sat_s_trunc_##WT##_to_##NT##_fmt_7 (WT x) \
#define DEF_SAT_S_TRUNC_FMT_7_WRAP(NT, WT, NT_MIN, NT_MAX) \
DEF_SAT_S_TRUNC_FMT_7(NT, WT, NT_MIN, NT_MAX)
+#define DEF_SAT_S_TRUNC_FMT_8(NT, WT, NT_MIN, NT_MAX) \
+NT __attribute__((noinline)) \
+sat_s_trunc_##WT##_to_##NT##_fmt_8 (WT x) \
+{ \
+ NT trunc = (NT)x; \
+ return (WT)NT_MIN > x || x >= (WT)NT_MAX \
+ ? x < 0 ? NT_MIN : NT_MAX \
+ : trunc; \
+}
+#define DEF_SAT_S_TRUNC_FMT_8_WRAP(NT, WT, NT_MIN, NT_MAX) \
+ DEF_SAT_S_TRUNC_FMT_8(NT, WT, NT_MIN, NT_MAX)
+
#define RUN_SAT_S_TRUNC_FMT_1(NT, WT, x) sat_s_trunc_##WT##_to_##NT##_fmt_1 (x)
#define RUN_SAT_S_TRUNC_FMT_1_WRAP(NT, WT, x) RUN_SAT_S_TRUNC_FMT_1(NT, WT, x)
@@ -570,4 +582,7 @@ sat_s_trunc_##WT##_to_##NT##_fmt_7 (WT x) \
#define RUN_SAT_S_TRUNC_FMT_7(NT, WT, x) sat_s_trunc_##WT##_to_##NT##_fmt_7 (x)
#define RUN_SAT_S_TRUNC_FMT_7_WRAP(NT, WT, x) RUN_SAT_S_TRUNC_FMT_7(NT, 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)
+
#endif
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i16-to-i8.c
b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i16-to-i8.c
new file mode 100644
index 000000000000..cf1916b958c9
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i16-to-i8.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -O3 -fdump-rtl-expand-details
-fno-schedule-insns -fno-schedule-insns2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
+
+#include "sat_arith.h"
+
+/*
+** sat_s_trunc_int16_t_to_int8_t_fmt_8:
+** slti\s+[atx][0-9]+,\s*[atx][0-9]+,\s*127
+** li\s+[atx][0-9]+,\s*-128
+** slt\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+** neg\s+[atx][0-9]+,\s*[atx][0-9]+
+** srai\s+[atx][0-9]+,\s*[atx][0-9]+,\s*63
+** xori\s+[atx][0-9]+,\s*[atx][0-9]+,\s*127
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** or\s+a0,\s*[atx][0-9]+,\s*[atx][0-9]+
+** slliw\s+a0,\s*a0,\s*24
+** sraiw\s+a0,\s*a0,\s*24
+** ret
+*/
+DEF_SAT_S_TRUNC_FMT_8(int8_t, int16_t, INT8_MIN, INT8_MAX)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i32-to-i16.c
b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i32-to-i16.c
new file mode 100644
index 000000000000..f4c46f040796
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i32-to-i16.c
@@ -0,0 +1,28 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -O3 -fdump-rtl-expand-details
-fno-schedule-insns -fno-schedule-insns2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
+
+#include "sat_arith.h"
+
+/*
+** sat_s_trunc_int32_t_to_int16_t_fmt_8:
+** li\s+[atx][0-9]+,\s*32768
+** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+** slt\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** li\s+[atx][0-9]+,\s*-32768
+** slt\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+** neg\s+[atx][0-9]+,\s*[atx][0-9]+
+** srai\s+[atx][0-9]+,\s*[atx][0-9]+,\s*63
+** xor\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** or\s+a0,\s*[atx][0-9]+,\s*[atx][0-9]+
+** slliw\s+a0,\s*a0,\s*16
+** sraiw\s+a0,\s*a0,\s*16
+** ret
+*/
+DEF_SAT_S_TRUNC_FMT_8(int16_t, int32_t, INT16_MIN, INT16_MAX)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i32-to-i8.c
b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i32-to-i8.c
new file mode 100644
index 000000000000..6c026e63d266
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i32-to-i8.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -O3 -fdump-rtl-expand-details
-fno-schedule-insns -fno-schedule-insns2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
+
+#include "sat_arith.h"
+
+/*
+** sat_s_trunc_int32_t_to_int8_t_fmt_8:
+** slti\s+[atx][0-9]+,\s*[atx][0-9]+,\s*127
+** li\s+[atx][0-9]+,\s*-128
+** slt\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+** neg\s+[atx][0-9]+,\s*[atx][0-9]+
+** srai\s+[atx][0-9]+,\s*[atx][0-9]+,\s*63
+** xori\s+[atx][0-9]+,\s*[atx][0-9]+,\s*127
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** or\s+a0,\s*[atx][0-9]+,\s*[atx][0-9]+
+** slliw\s+a0,\s*a0,\s*24
+** sraiw\s+a0,\s*a0,\s*24
+** ret
+*/
+DEF_SAT_S_TRUNC_FMT_8(int8_t, int32_t, INT8_MIN, INT8_MAX)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i64-to-i16.c
b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i64-to-i16.c
new file mode 100644
index 000000000000..cc6e1a6722ec
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i64-to-i16.c
@@ -0,0 +1,28 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -O3 -fdump-rtl-expand-details
-fno-schedule-insns -fno-schedule-insns2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
+
+#include "sat_arith.h"
+
+/*
+** sat_s_trunc_int64_t_to_int16_t_fmt_8:
+** li\s+[atx][0-9]+,\s*32768
+** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+** slt\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** li\s+[atx][0-9]+,\s*-32768
+** slt\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+** neg\s+[atx][0-9]+,\s*[atx][0-9]+
+** srai\s+[atx][0-9]+,\s*[atx][0-9]+,\s*63
+** xor\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** or\s+a0,\s*[atx][0-9]+,\s*[atx][0-9]+
+** slliw\s+a0,\s*a0,\s*16
+** sraiw\s+a0,\s*a0,\s*16
+** ret
+*/
+DEF_SAT_S_TRUNC_FMT_8(int16_t, int64_t, INT16_MIN, INT16_MAX)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i64-to-i32.c
b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i64-to-i32.c
new file mode 100644
index 000000000000..0ef940d82511
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i64-to-i32.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -O3 -fdump-rtl-expand-details
-fno-schedule-insns -fno-schedule-insns2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
+
+#include "sat_arith.h"
+
+/*
+** sat_s_trunc_int64_t_to_int32_t_fmt_8:
+** li\s+[atx][0-9]+,\s*-2147483648
+** xori\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+** slt\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** slt\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+** neg\s+[atx][0-9]+,\s*[atx][0-9]+
+** srai\s+[atx][0-9]+,\s*[atx][0-9]+,\s*63
+** xor\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** or\s+a0,\s*[atx][0-9]+,\s*[atx][0-9]+
+** sext\.w\s+a0,\s*a0
+** ret
+*/
+DEF_SAT_S_TRUNC_FMT_8(int32_t, int64_t, INT32_MIN, INT32_MAX)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i64-to-i8.c
b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i64-to-i8.c
new file mode 100644
index 000000000000..c62bd5ee49c1
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-8-i64-to-i8.c
@@ -0,0 +1,26 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -O3 -fdump-rtl-expand-details
-fno-schedule-insns -fno-schedule-insns2" } */
+/* { dg-final { check-function-bodies "**" "" } } */
+
+#include "sat_arith.h"
+
+/*
+** sat_s_trunc_int64_t_to_int8_t_fmt_8:
+** slti\s+[atx][0-9]+,\s*[atx][0-9]+,\s*127
+** li\s+[atx][0-9]+,\s*-128
+** slt\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+** neg\s+[atx][0-9]+,\s*[atx][0-9]+
+** srai\s+[atx][0-9]+,\s*[atx][0-9]+,\s*63
+** xori\s+[atx][0-9]+,\s*[atx][0-9]+,\s*127
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** or\s+a0,\s*[atx][0-9]+,\s*[atx][0-9]+
+** slliw\s+a0,\s*a0,\s*24
+** sraiw\s+a0,\s*a0,\s*24
+** ret
+*/
+DEF_SAT_S_TRUNC_FMT_8(int8_t, int64_t, INT8_MIN, INT8_MAX)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i16-to-i8.c
b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i16-to-i8.c
new file mode 100644
index 000000000000..dbd70de25690
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i16-to-i8.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 T1 int8_t
+#define T2 int16_t
+
+DEF_SAT_S_TRUNC_FMT_8_WRAP(T1, T2, INT8_MIN, INT8_MAX)
+
+#define DATA TEST_UNARY_DATA_WRAP(T1, T2)
+#define T TEST_UNARY_STRUCT_DECL(T1, T2)
+#define RUN_UNARY(x) RUN_SAT_S_TRUNC_FMT_8_WRAP(T1, T2, x)
+
+#include "scalar_sat_unary.h"
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i32-to-i16.c
b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i32-to-i16.c
new file mode 100644
index 000000000000..25bb42fb0ab4
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i32-to-i16.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 T1 int16_t
+#define T2 int32_t
+
+DEF_SAT_S_TRUNC_FMT_8_WRAP(T1, T2, INT16_MIN, INT16_MAX)
+
+#define DATA TEST_UNARY_DATA_WRAP(T1, T2)
+#define T TEST_UNARY_STRUCT_DECL(T1, T2)
+#define RUN_UNARY(x) RUN_SAT_S_TRUNC_FMT_8_WRAP(T1, T2, x)
+
+#include "scalar_sat_unary.h"
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i32-to-i8.c
b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i32-to-i8.c
new file mode 100644
index 000000000000..7c71b3d42aa8
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i32-to-i8.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 T1 int8_t
+#define T2 int32_t
+
+DEF_SAT_S_TRUNC_FMT_8_WRAP(T1, T2, INT8_MIN, INT8_MAX)
+
+#define DATA TEST_UNARY_DATA_WRAP(T1, T2)
+#define T TEST_UNARY_STRUCT_DECL(T1, T2)
+#define RUN_UNARY(x) RUN_SAT_S_TRUNC_FMT_8_WRAP(T1, T2, x)
+
+#include "scalar_sat_unary.h"
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i64-to-i16.c
b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i64-to-i16.c
new file mode 100644
index 000000000000..61392b569e57
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i64-to-i16.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 T1 int16_t
+#define T2 int64_t
+
+DEF_SAT_S_TRUNC_FMT_8_WRAP(T1, T2, INT16_MIN, INT16_MAX)
+
+#define DATA TEST_UNARY_DATA_WRAP(T1, T2)
+#define T TEST_UNARY_STRUCT_DECL(T1, T2)
+#define RUN_UNARY(x) RUN_SAT_S_TRUNC_FMT_8_WRAP(T1, T2, x)
+
+#include "scalar_sat_unary.h"
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i64-to-i32.c
b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i64-to-i32.c
new file mode 100644
index 000000000000..b47e5da0a29b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i64-to-i32.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 T1 int32_t
+#define T2 int64_t
+
+DEF_SAT_S_TRUNC_FMT_8_WRAP(T1, T2, INT32_MIN, INT32_MAX)
+
+#define DATA TEST_UNARY_DATA_WRAP(T1, T2)
+#define T TEST_UNARY_STRUCT_DECL(T1, T2)
+#define RUN_UNARY(x) RUN_SAT_S_TRUNC_FMT_8_WRAP(T1, T2, x)
+
+#include "scalar_sat_unary.h"
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i64-to-i8.c
b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i64-to-i8.c
new file mode 100644
index 000000000000..1cd7f8049b03
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_trunc-run-8-i64-to-i8.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 T1 int8_t
+#define T2 int64_t
+
+DEF_SAT_S_TRUNC_FMT_8_WRAP(T1, T2, INT8_MIN, INT8_MAX)
+
+#define DATA TEST_UNARY_DATA_WRAP(T1, T2)
+#define T TEST_UNARY_STRUCT_DECL(T1, T2)
+#define RUN_UNARY(x) RUN_SAT_S_TRUNC_FMT_8_WRAP(T1, T2, x)
+
+#include "scalar_sat_unary.h"
