@@ -245,6 +245,15 @@ sat_u_trunc_##WT##_to_##NT##_fmt_3 (WT x) \
}
#define DEF_SAT_U_TRUNC_FMT_3_WRAP(NT, WT) DEF_SAT_U_TRUNC_FMT_3(NT, WT)
+#define DEF_SAT_U_TRUNC_FMT_4(NT, WT) \
+NT __attribute__((noinline)) \
+sat_u_trunc_##WT##_to_##NT##_fmt_4 (WT x) \
+{ \
+ bool not_overflow = x <= (WT)(NT)(-1); \
+ return ((NT)x) | (NT)((NT)not_overflow - 1); \
+}
+#define DEF_SAT_U_TRUNC_FMT_4_WRAP(NT, WT) DEF_SAT_U_TRUNC_FMT_4(NT, WT)
+
#define RUN_SAT_U_TRUNC_FMT_1(NT, WT, x) sat_u_trunc_##WT##_to_##NT##_fmt_1 (x)
#define RUN_SAT_U_TRUNC_FMT_1_WRAP(NT, WT, x) RUN_SAT_U_TRUNC_FMT_1(NT, WT, x)
@@ -254,4 +263,7 @@ sat_u_trunc_##WT##_to_##NT##_fmt_3 (WT x) \
#define RUN_SAT_U_TRUNC_FMT_3(NT, WT, x) sat_u_trunc_##WT##_to_##NT##_fmt_3 (x)
#define RUN_SAT_U_TRUNC_FMT_3_WRAP(NT, WT, x) RUN_SAT_U_TRUNC_FMT_3(NT, WT, x)
+#define RUN_SAT_U_TRUNC_FMT_4(NT, WT, x) sat_u_trunc_##WT##_to_##NT##_fmt_4 (x)
+#define RUN_SAT_U_TRUNC_FMT_4_WRAP(NT, WT, x) RUN_SAT_U_TRUNC_FMT_4(NT, WT, x)
+
#endif
new file mode 100644
@@ -0,0 +1,17 @@
+/* { 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_u_trunc_uint16_t_to_uint8_t_fmt_4:
+** sltiu\s+[atx][0-9]+,\s*a0,\s*255
+** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+** or\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** andi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*0xff
+** ret
+*/
+DEF_SAT_U_TRUNC_FMT_4(uint8_t, uint16_t)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
new file mode 100644
@@ -0,0 +1,20 @@
+/* { 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_u_trunc_uint32_t_to_uint16_t_fmt_4:
+** li\s+[atx][0-9]+,\s*65536
+** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+** sltu\s+[atx][0-9]+,\s*a0,\s*[atx][0-9]+
+** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+** or\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** slli\s+a0,\s*a0,\s*48
+** srli\s+a0,\s*a0,\s*48
+** ret
+*/
+DEF_SAT_U_TRUNC_FMT_4(uint16_t, uint32_t)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
new file mode 100644
@@ -0,0 +1,19 @@
+/* { 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_u_trunc_uint64_t_to_uint32_t_fmt_4:
+** li\s+[atx][0-9]+,\s*-1
+** srli\s+[atx][0-9]+,\s*[atx][0-9]+,\s*32
+** sltu\s+[atx][0-9]+,\s*a0,\s*[atx][0-9]+
+** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+** or\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** sext.w\s+a0,\s*a0
+** ret
+*/
+DEF_SAT_U_TRUNC_FMT_4(uint32_t, uint64_t)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
new file mode 100644
@@ -0,0 +1,17 @@
+/* { 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_u_trunc_uint32_t_to_uint8_t_fmt_4:
+** sltiu\s+[atx][0-9]+,\s*a0,\s*255
+** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+** or\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** andi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*0xff
+** ret
+*/
+DEF_SAT_U_TRUNC_FMT_4(uint8_t, uint32_t)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
new file mode 100644
@@ -0,0 +1,17 @@
+/* { 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_u_trunc_uint64_t_to_uint8_t_fmt_4:
+** sltiu\s+[atx][0-9]+,\s*a0,\s*255
+** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+** or\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** andi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*0xff
+** ret
+*/
+DEF_SAT_U_TRUNC_FMT_4(uint8_t, uint64_t)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
new file mode 100644
@@ -0,0 +1,20 @@
+/* { 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_u_trunc_uint64_t_to_uint16_t_fmt_4:
+** li\s+[atx][0-9]+,\s*65536
+** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+** sltu\s+[atx][0-9]+,\s*a0,\s*[atx][0-9]+
+** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+** or\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+** slli\s+a0,\s*a0,\s*48
+** srli\s+a0,\s*a0,\s*48
+** ret
+*/
+DEF_SAT_U_TRUNC_FMT_4(uint16_t, uint64_t)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_TRUNC " 2 "expand" } } */
new file mode 100644
@@ -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 uint8_t
+#define T2 uint16_t
+
+DEF_SAT_U_TRUNC_FMT_4_WRAP(T1, T2)
+
+#define DATA TEST_UNARY_DATA_WRAP(T1, T2)
+#define T TEST_UNARY_STRUCT_DECL(T1, T2)
+#define RUN_UNARY(x) RUN_SAT_U_TRUNC_FMT_4_WRAP(T1, T2, x)
+
+#include "scalar_sat_unary.h"
new file mode 100644
@@ -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 uint16_t
+#define T2 uint32_t
+
+DEF_SAT_U_TRUNC_FMT_4_WRAP(T1, T2)
+
+#define DATA TEST_UNARY_DATA_WRAP(T1, T2)
+#define T TEST_UNARY_STRUCT_DECL(T1, T2)
+#define RUN_UNARY(x) RUN_SAT_U_TRUNC_FMT_4_WRAP(T1, T2, x)
+
+#include "scalar_sat_unary.h"
new file mode 100644
@@ -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 uint32_t
+#define T2 uint64_t
+
+DEF_SAT_U_TRUNC_FMT_4_WRAP(T1, T2)
+
+#define DATA TEST_UNARY_DATA_WRAP(T1, T2)
+#define T TEST_UNARY_STRUCT_DECL(T1, T2)
+#define RUN_UNARY(x) RUN_SAT_U_TRUNC_FMT_4_WRAP(T1, T2, x)
+
+#include "scalar_sat_unary.h"
new file mode 100644
@@ -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 uint8_t
+#define T2 uint32_t
+
+DEF_SAT_U_TRUNC_FMT_4_WRAP(T1, T2)
+
+#define DATA TEST_UNARY_DATA_WRAP(T1, T2)
+#define T TEST_UNARY_STRUCT_DECL(T1, T2)
+#define RUN_UNARY(x) RUN_SAT_U_TRUNC_FMT_4_WRAP(T1, T2, x)
+
+#include "scalar_sat_unary.h"
new file mode 100644
@@ -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 uint8_t
+#define T2 uint64_t
+
+DEF_SAT_U_TRUNC_FMT_4_WRAP(T1, T2)
+
+#define DATA TEST_UNARY_DATA_WRAP(T1, T2)
+#define T TEST_UNARY_STRUCT_DECL(T1, T2)
+#define RUN_UNARY(x) RUN_SAT_U_TRUNC_FMT_4_WRAP(T1, T2, x)
+
+#include "scalar_sat_unary.h"
new file mode 100644
@@ -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 uint16_t
+#define T2 uint64_t
+
+DEF_SAT_U_TRUNC_FMT_4_WRAP(T1, T2)
+
+#define DATA TEST_UNARY_DATA_WRAP(T1, T2)
+#define T TEST_UNARY_STRUCT_DECL(T1, T2)
+#define RUN_UNARY(x) RUN_SAT_U_TRUNC_FMT_4_WRAP(T1, T2, x)
+
+#include "scalar_sat_unary.h"