From: Pan Li <pan2...@intel.com>

Form 3:
  #define DEF_VEC_SAT_S_TRUNC_FMT_3(NT, WT, NT_MIN, NT_MAX)             \
  void __attribute__((noinline))                                        \
  vec_sat_s_trunc_##NT##_##WT##_fmt_3 (NT *out, WT *in, unsigned limit) \
  {                                                                     \
    unsigned i;                                                         \
    for (i = 0; i < limit; i++)                                         \
      {                                                                 \
        WT x = in[i];                                                   \
        NT trunc = (NT)x;                                               \
        out[i] = (WT)NT_MIN < x && x < (WT)NT_MAX                       \
          ? trunc                                                       \
          : x < 0 ? NT_MIN : NT_MAX;                                    \
      }                                                                 \
  }

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/rvv/autovec/vec_sat_arith.h: Add test helper macros.
        * gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i16-to-i8.c: New 
test.
        * gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i32-to-i16.c: New 
test.
        * gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i32-to-i8.c: New 
test.
        * gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i64-to-i16.c: New 
test.
        * gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i64-to-i32.c: New 
test.
        * gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i64-to-i8.c: New 
test.
        * gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i16-to-i8.c: 
New test.
        * gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i32-to-i16.c: 
New test.
        * gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i32-to-i8.c: 
New test.
        * gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i64-to-i16.c: 
New test.
        * gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i64-to-i32.c: 
New test.
        * gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i64-to-i8.c: 
New test.

Signed-off-by: Pan Li <pan2...@intel.com>
---
 .../unop/vec_sat_s_trunc-3-i16-to-i8.c        |  9 ++++++++
 .../unop/vec_sat_s_trunc-3-i32-to-i16.c       |  9 ++++++++
 .../unop/vec_sat_s_trunc-3-i32-to-i8.c        |  9 ++++++++
 .../unop/vec_sat_s_trunc-3-i64-to-i16.c       |  9 ++++++++
 .../unop/vec_sat_s_trunc-3-i64-to-i32.c       |  9 ++++++++
 .../unop/vec_sat_s_trunc-3-i64-to-i8.c        |  9 ++++++++
 .../unop/vec_sat_s_trunc-run-3-i16-to-i8.c    | 16 ++++++++++++++
 .../unop/vec_sat_s_trunc-run-3-i32-to-i16.c   | 16 ++++++++++++++
 .../unop/vec_sat_s_trunc-run-3-i32-to-i8.c    | 16 ++++++++++++++
 .../unop/vec_sat_s_trunc-run-3-i64-to-i16.c   | 16 ++++++++++++++
 .../unop/vec_sat_s_trunc-run-3-i64-to-i32.c   | 16 ++++++++++++++
 .../unop/vec_sat_s_trunc-run-3-i64-to-i8.c    | 16 ++++++++++++++
 .../riscv/rvv/autovec/vec_sat_arith.h         | 22 +++++++++++++++++++
 13 files changed, 172 insertions(+)
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i16-to-i8.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i32-to-i16.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i32-to-i8.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i64-to-i16.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i64-to-i32.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i64-to-i8.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i16-to-i8.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i32-to-i16.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i32-to-i8.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i64-to-i16.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i64-to-i32.c
 create mode 100644 
gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i64-to-i8.c

diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i16-to-i8.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i16-to-i8.c
new file mode 100644
index 00000000000..392366def06
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i16-to-i8.c
@@ -0,0 +1,9 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d -O3 -fdump-rtl-expand-details" } */
+
+#include "../vec_sat_arith.h"
+
+DEF_VEC_SAT_S_TRUNC_FMT_3(int8_t, int16_t, INT8_MIN, INT8_MAX)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
+/* { dg-final { scan-assembler-times {vnclip\.wi} 1 } } */
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i32-to-i16.c
 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i32-to-i16.c
new file mode 100644
index 00000000000..2b16049994a
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i32-to-i16.c
@@ -0,0 +1,9 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d -O3 -fdump-rtl-expand-details" } */
+
+#include "../vec_sat_arith.h"
+
+DEF_VEC_SAT_S_TRUNC_FMT_3(int16_t, int32_t, INT16_MIN, INT16_MAX)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
+/* { dg-final { scan-assembler-times {vnclip\.wi} 1 } } */
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i32-to-i8.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i32-to-i8.c
new file mode 100644
index 00000000000..b444d2ea9c6
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i32-to-i8.c
@@ -0,0 +1,9 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d -O3 -fdump-rtl-expand-details" } */
+
+#include "../vec_sat_arith.h"
+
+DEF_VEC_SAT_S_TRUNC_FMT_3(int8_t, int32_t, INT8_MIN, INT8_MAX)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
+/* { dg-final { scan-assembler-times {vnclip\.wi} 2 } } */
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i64-to-i16.c
 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i64-to-i16.c
new file mode 100644
index 00000000000..06606581e8f
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i64-to-i16.c
@@ -0,0 +1,9 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d -O3 -fdump-rtl-expand-details" } */
+
+#include "../vec_sat_arith.h"
+
+DEF_VEC_SAT_S_TRUNC_FMT_3(int16_t, int64_t, INT16_MIN, INT16_MAX)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
+/* { dg-final { scan-assembler-times {vnclip\.wi} 2 } } */
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i64-to-i32.c
 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i64-to-i32.c
new file mode 100644
index 00000000000..72ec727274b
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i64-to-i32.c
@@ -0,0 +1,9 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d -O3 -fdump-rtl-expand-details" } */
+
+#include "../vec_sat_arith.h"
+
+DEF_VEC_SAT_S_TRUNC_FMT_3(int32_t, int64_t, INT32_MIN, INT32_MAX)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
+/* { dg-final { scan-assembler-times {vnclip\.wi} 1 } } */
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i64-to-i8.c 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i64-to-i8.c
new file mode 100644
index 00000000000..7915d5417a5
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-3-i64-to-i8.c
@@ -0,0 +1,9 @@
+/* { dg-do compile } */
+/* { dg-options "-march=rv64gcv -mabi=lp64d -O3 -fdump-rtl-expand-details" } */
+
+#include "../vec_sat_arith.h"
+
+DEF_VEC_SAT_S_TRUNC_FMT_3(int8_t, int64_t, INT8_MIN, INT8_MAX)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
+/* { dg-final { scan-assembler-times {vnclip\.wi} 3 } } */
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i16-to-i8.c
 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i16-to-i8.c
new file mode 100644
index 00000000000..0b658f3d0aa
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i16-to-i8.c
@@ -0,0 +1,16 @@
+/* { dg-do run { target { riscv_v } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "../vec_sat_arith.h"
+#include "vec_sat_data.h"
+
+#define T1 int8_t
+#define T2 int16_t
+
+DEF_VEC_SAT_S_TRUNC_FMT_3_WRAP(T1, T2, INT8_MIN, INT8_MAX)
+
+#define T                     TEST_UNARY_STRUCT_DECL(T1, T2)
+#define DATA                  TEST_UNARY_DATA_WRAP(T1, T2)
+#define RUN_UNARY(out, in, N) RUN_VEC_SAT_S_TRUNC_FMT_3_WRAP(T1, T2, out, in, 
N)
+
+#include "vec_sat_unary_vv_run.h"
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i32-to-i16.c
 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i32-to-i16.c
new file mode 100644
index 00000000000..41e1789dd62
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i32-to-i16.c
@@ -0,0 +1,16 @@
+/* { dg-do run { target { riscv_v } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "../vec_sat_arith.h"
+#include "vec_sat_data.h"
+
+#define T1 int16_t
+#define T2 int32_t
+
+DEF_VEC_SAT_S_TRUNC_FMT_3_WRAP(T1, T2, INT16_MIN, INT16_MAX)
+
+#define T                     TEST_UNARY_STRUCT_DECL(T1, T2)
+#define DATA                  TEST_UNARY_DATA_WRAP(T1, T2)
+#define RUN_UNARY(out, in, N) RUN_VEC_SAT_S_TRUNC_FMT_3_WRAP(T1, T2, out, in, 
N)
+
+#include "vec_sat_unary_vv_run.h"
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i32-to-i8.c
 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i32-to-i8.c
new file mode 100644
index 00000000000..0b658f3d0aa
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i32-to-i8.c
@@ -0,0 +1,16 @@
+/* { dg-do run { target { riscv_v } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "../vec_sat_arith.h"
+#include "vec_sat_data.h"
+
+#define T1 int8_t
+#define T2 int16_t
+
+DEF_VEC_SAT_S_TRUNC_FMT_3_WRAP(T1, T2, INT8_MIN, INT8_MAX)
+
+#define T                     TEST_UNARY_STRUCT_DECL(T1, T2)
+#define DATA                  TEST_UNARY_DATA_WRAP(T1, T2)
+#define RUN_UNARY(out, in, N) RUN_VEC_SAT_S_TRUNC_FMT_3_WRAP(T1, T2, out, in, 
N)
+
+#include "vec_sat_unary_vv_run.h"
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i64-to-i16.c
 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i64-to-i16.c
new file mode 100644
index 00000000000..28cd5c806f9
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i64-to-i16.c
@@ -0,0 +1,16 @@
+/* { dg-do run { target { riscv_v } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "../vec_sat_arith.h"
+#include "vec_sat_data.h"
+
+#define T1 int16_t
+#define T2 int64_t
+
+DEF_VEC_SAT_S_TRUNC_FMT_3_WRAP(T1, T2, INT16_MIN, INT16_MAX)
+
+#define T                     TEST_UNARY_STRUCT_DECL(T1, T2)
+#define DATA                  TEST_UNARY_DATA_WRAP(T1, T2)
+#define RUN_UNARY(out, in, N) RUN_VEC_SAT_S_TRUNC_FMT_3_WRAP(T1, T2, out, in, 
N)
+
+#include "vec_sat_unary_vv_run.h"
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i64-to-i32.c
 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i64-to-i32.c
new file mode 100644
index 00000000000..a6501f93df7
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i64-to-i32.c
@@ -0,0 +1,16 @@
+/* { dg-do run { target { riscv_v } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "../vec_sat_arith.h"
+#include "vec_sat_data.h"
+
+#define T1 int32_t
+#define T2 int64_t
+
+DEF_VEC_SAT_S_TRUNC_FMT_3_WRAP(T1, T2, INT32_MIN, INT32_MAX)
+
+#define T                     TEST_UNARY_STRUCT_DECL(T1, T2)
+#define DATA                  TEST_UNARY_DATA_WRAP(T1, T2)
+#define RUN_UNARY(out, in, N) RUN_VEC_SAT_S_TRUNC_FMT_3_WRAP(T1, T2, out, in, 
N)
+
+#include "vec_sat_unary_vv_run.h"
diff --git 
a/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i64-to-i8.c
 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i64-to-i8.c
new file mode 100644
index 00000000000..eef36e8dbdb
--- /dev/null
+++ 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/unop/vec_sat_s_trunc-run-3-i64-to-i8.c
@@ -0,0 +1,16 @@
+/* { dg-do run { target { riscv_v } } } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "../vec_sat_arith.h"
+#include "vec_sat_data.h"
+
+#define T1 int8_t
+#define T2 int64_t
+
+DEF_VEC_SAT_S_TRUNC_FMT_3_WRAP(T1, T2, INT8_MIN, INT8_MAX)
+
+#define T                     TEST_UNARY_STRUCT_DECL(T1, T2)
+#define DATA                  TEST_UNARY_DATA_WRAP(T1, T2)
+#define RUN_UNARY(out, in, N) RUN_VEC_SAT_S_TRUNC_FMT_3_WRAP(T1, T2, out, in, 
N)
+
+#include "vec_sat_unary_vv_run.h"
diff --git a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vec_sat_arith.h 
b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vec_sat_arith.h
index 5c8436f7e28..c0524bae2d0 100644
--- a/gcc/testsuite/gcc.target/riscv/rvv/autovec/vec_sat_arith.h
+++ b/gcc/testsuite/gcc.target/riscv/rvv/autovec/vec_sat_arith.h
@@ -681,6 +681,23 @@ vec_sat_s_trunc_##NT##_##WT##_fmt_2 (NT *out, WT *in, 
unsigned limit) \
 #define DEF_VEC_SAT_S_TRUNC_FMT_2_WRAP(NT, WT, NT_MIN, NT_MAX) \
   DEF_VEC_SAT_S_TRUNC_FMT_2(NT, WT, NT_MIN, NT_MAX)
 
+#define DEF_VEC_SAT_S_TRUNC_FMT_3(NT, WT, NT_MIN, NT_MAX)             \
+void __attribute__((noinline))                                        \
+vec_sat_s_trunc_##NT##_##WT##_fmt_3 (NT *out, WT *in, unsigned limit) \
+{                                                                     \
+  unsigned i;                                                         \
+  for (i = 0; i < limit; i++)                                         \
+    {                                                                 \
+      WT x = in[i];                                                   \
+      NT trunc = (NT)x;                                               \
+      out[i] = (WT)NT_MIN < x && x <= (WT)NT_MAX                      \
+       ? trunc                                                       \
+       : x < 0 ? NT_MIN : NT_MAX;                                    \
+    }                                                                 \
+}
+#define DEF_VEC_SAT_S_TRUNC_FMT_3_WRAP(NT, WT, NT_MIN, NT_MAX) \
+  DEF_VEC_SAT_S_TRUNC_FMT_3(NT, WT, NT_MIN, NT_MAX)
+
 #define RUN_VEC_SAT_U_TRUNC_FMT_1(NT, WT, out, in, N) \
   vec_sat_u_trunc_##NT##_##WT##_fmt_1 (out, in, N)
 #define RUN_VEC_SAT_U_TRUNC_FMT_1_WRAP(NT, WT, out, in, N) \
@@ -711,4 +728,9 @@ vec_sat_s_trunc_##NT##_##WT##_fmt_2 (NT *out, WT *in, 
unsigned limit) \
 #define RUN_VEC_SAT_S_TRUNC_FMT_2_WRAP(NT, WT, out, in, N) \
   RUN_VEC_SAT_S_TRUNC_FMT_2(NT, WT, out, in, N)
 
+#define RUN_VEC_SAT_S_TRUNC_FMT_3(NT, WT, out, in, N) \
+  vec_sat_s_trunc_##NT##_##WT##_fmt_3 (out, in, N)
+#define RUN_VEC_SAT_S_TRUNC_FMT_3_WRAP(NT, WT, out, in, N) \
+  RUN_VEC_SAT_S_TRUNC_FMT_3(NT, WT, out, in, N)
+
 #endif
-- 
2.43.0

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