RISC-V: Add testcases for signed imm SAT_ADD form1

This patch adds testcase for form1, as shown below:

T __attribute__((noinline))                  \
sat_s_add_imm_##T##_fmt_1##_##INDEX (T x)             \
{                                            \
  T sum = (UT)x + (UT)IMM;                     \
  return (x ^ IMM) < 0                         \
    ? sum                                    \
    : (sum ^ x) >= 0                         \
      ? sum                                  \
      : x < 0 ? MIN : MAX;                   \
}

Passed the rv64gcv regression test.

Signed-off-by: Li Xu <xuli1@eswincomputing.com>

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/sat_arith.h: Support signed
	imm SAT_ADD form1.
	* gcc.target/riscv/sat_s_add_imm-1-1.c: New test.
	* gcc.target/riscv/sat_s_add_imm-1.c: New test.
	* gcc.target/riscv/sat_s_add_imm-2-1.c: New test.
	* gcc.target/riscv/sat_s_add_imm-2.c: New test.
	* gcc.target/riscv/sat_s_add_imm-3-1.c: New test.
	* gcc.target/riscv/sat_s_add_imm-3.c: New test.
	* gcc.target/riscv/sat_s_add_imm-4.c: New test.
	* gcc.target/riscv/sat_s_add_imm-run-1.c: New test.
	* gcc.target/riscv/sat_s_add_imm-run-2.c: New test.
	* gcc.target/riscv/sat_s_add_imm-run-3.c: New test.
	* gcc.target/riscv/sat_s_add_imm-run-4.c: New test.

12 files changed, 336 insertions, 0 deletions

diff --git a/gcc/testsuite/gcc.target/riscv/sat_arith.h b/gcc/testsuite/gcc.target/riscv/sat_arith.h
index 2cbd1f1..b334e7f 100644
--- a/gcc/testsuite/gcc.target/riscv/sat_arith.h
+++ b/gcc/testsuite/gcc.target/riscv/sat_arith.h
@@ -176,6 +176,21 @@ sat_s_add_##T##_fmt_4 (T x, T y)                       \
 #define RUN_SAT_S_ADD_FMT_4(T, x, y) sat_s_add_##T##_fmt_4(x, y)
 #define RUN_SAT_S_ADD_FMT_4_WRAP(T, x, y) RUN_SAT_S_ADD_FMT_4(T, x, y)
 
+#define DEF_SAT_S_ADD_IMM_FMT_1(INDEX, T, UT, IMM, MIN, MAX) \
+T __attribute__((noinline))                  \
+sat_s_add_imm_##T##_fmt_1##_##INDEX (T x)             \
+{                                            \
+  T sum = (UT)x + (UT)IMM;                     \
+  return (x ^ IMM) < 0                         \
+    ? sum                                    \
+    : (sum ^ x) >= 0                         \
+      ? sum                                  \
+      : x < 0 ? MIN : MAX;                   \
+}
+
+#define RUN_SAT_S_ADD_IMM_FMT_1(INDEX, T, x, expect) \
+  if (sat_s_add_imm##_##T##_fmt_1##_##INDEX(x) != expect) __builtin_abort ()
+
 /******************************************************************************/
 /* Saturation Sub (Unsigned and Signed)                                       */
 /******************************************************************************/
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-1-1.c b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-1-1.c
new file mode 100644
index 0000000..f20f9b0
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-1-1.c
@@ -0,0 +1,10 @@
+/* { dg-do compile } */
+/* { dg-skip-if  "" { *-*-* } { "-flto" } } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -O3 -fdump-rtl-expand-details" } */
+
+#include "sat_arith.h"
+
+DEF_SAT_S_ADD_IMM_FMT_1(0, int8_t, uint8_t, -129, INT8_MIN, INT8_MAX)
+DEF_SAT_S_ADD_IMM_FMT_1(1, int8_t, uint8_t, 128, INT8_MIN, INT8_MAX)
+
+/* { dg-final { scan-rtl-dump-not ".SAT_ADD " "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-1.c b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-1.c
new file mode 100644
index 0000000..6746caf
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-1.c
@@ -0,0 +1,30 @@
+/* { dg-do compile } */
+/* { dg-skip-if  "" { *-*-* } { "-flto" } } */
+/* { 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_add_imm_int8_t_fmt_1_0:
+**	addi\s+[atx][0-9]+,\s*a0,\s*9
+**	xor\s+[atx][0-9]+,\s*a0,\s*[atx][0-9]+
+**	srli\s+[atx][0-9]+,\s*[atx][0-9]+,\s*7
+**	srli\s+[atx][0-9]+,\s*a0,\s*7
+**	xori\s+[atx][0-9]+,\s*[atx][0-9]+,\s*1
+**	and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+**	andi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*1
+**	srai\s+a0,\s*a0,\s*63
+**	xori\s+[atx][0-9]+,\s*a0,\s*127
+**	neg\s+a0,\s*[atx][0-9]+
+**	and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*a0
+**	addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+**	and\s+a0,\s*[atx][0-9]+,\s*[atx][0-9]+
+**	or\s+a0,\s*a0,\s*[atx][0-9]+
+**	slliw\s+a0,\s*a0,\s*24
+**	sraiw\s+a0,\s*a0,\s*24
+**	ret
+*/
+DEF_SAT_S_ADD_IMM_FMT_1(0, int8_t, uint8_t, 9, INT8_MIN, INT8_MAX)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_ADD " 2 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-2-1.c b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-2-1.c
new file mode 100644
index 0000000..3d31d01
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-2-1.c
@@ -0,0 +1,10 @@
+/* { dg-do compile } */
+/* { dg-skip-if  "" { *-*-* } { "-flto" } } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -O3 -fdump-rtl-expand-details" } */
+
+#include "sat_arith.h"
+
+DEF_SAT_S_ADD_IMM_FMT_1(0, int16_t, uint16_t, -32769, INT16_MIN, INT16_MAX)
+DEF_SAT_S_ADD_IMM_FMT_1(1, int16_t, uint16_t, 32768, INT16_MIN, INT16_MAX)
+
+/* { dg-final { scan-rtl-dump-not ".SAT_ADD " "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-2.c b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-2.c
new file mode 100644
index 0000000..eb3127b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-2.c
@@ -0,0 +1,33 @@
+/* { dg-do compile } */
+/* { dg-skip-if  "" { *-*-* } { "-flto" } } */
+/* { 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_add_imm_int16_t_fmt_1_0:
+**	addi\s+[atx][0-9]+,\s*a0,\s*-7
+**	xori\s+[atx][0-9]+,\s*a0,\s*-7
+**	xor\s+[atx][0-9]+,\s*a0,\s*[atx][0-9]+
+**	srli\s+[atx][0-9]+,\s*[atx][0-9]+,\s*15
+**	srli\s+[atx][0-9]+,\s*[atx][0-9]+,\s*15
+**	xori\s+[atx][0-9]+,\s*[atx][0-9]+,\s*1
+**	and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+**	andi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*1
+**	srai\s+a0,\s*a0,\s*63
+**	li\s+[atx][0-9]+,\s*32768
+**	addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+**	xor\s+[atx][0-9]+,\s*[atx][0-9]+,\s*a0
+**	neg\s+a0,\s*[atx][0-9]+
+**	and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*a0
+**	addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+**	and\s+a0,\s*[atx][0-9]+,\s*[atx][0-9]+
+**	or\s+a0,\s*a0,\s*[atx][0-9]+
+**	slliw\s+a0,\s*a0,\s*16
+**	sraiw\s+a0,\s*a0,\s*16
+**	ret
+*/
+DEF_SAT_S_ADD_IMM_FMT_1(0, int16_t, uint16_t, -7, INT16_MIN, INT16_MAX)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_ADD " 2 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-3-1.c b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-3-1.c
new file mode 100644
index 0000000..1735a8b
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-3-1.c
@@ -0,0 +1,10 @@
+/* { dg-do compile } */
+/* { dg-skip-if  "" { *-*-* } { "-flto" } } */
+/* { dg-options "-march=rv64gc -mabi=lp64d -O3 -fdump-rtl-expand-details" } */
+
+#include "sat_arith.h"
+
+DEF_SAT_S_ADD_IMM_FMT_1(0, int32_t, uint32_t, -2147483649, INT32_MIN, INT32_MAX)
+DEF_SAT_S_ADD_IMM_FMT_1(1, int32_t, uint32_t, 2147483648, INT32_MIN, INT32_MAX)
+
+/* { dg-final { scan-rtl-dump-not ".SAT_ADD " "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-3.c b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-3.c
new file mode 100644
index 0000000..83ed301
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-3.c
@@ -0,0 +1,31 @@
+/* { dg-do compile } */
+/* { dg-skip-if  "" { *-*-* } { "-flto" } } */
+/* { 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_add_imm_int32_t_fmt_1_0:
+**	addi\s+[atx][0-9]+,\s*a0,\s*10
+**	xor\s+[atx][0-9]+,\s*a0,\s*[atx][0-9]+
+**	srli\s+[atx][0-9]+,\s*[atx][0-9]+,\s*31
+**	srli\s+[atx][0-9]+,\s*a0,\s*31
+**	xori\s+[atx][0-9]+,\s*[atx][0-9]+,\s*1
+**	and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+**	andi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*1
+**	srai\s+a0,\s*a0,\s*63
+**	li\s+[atx][0-9]+,\s*-2147483648
+**	xori\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+**	xor\s+[atx][0-9]+,\s*[atx][0-9]+,\s*a0
+**	neg\s+a0,\s*[atx][0-9]+
+**	and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*a0
+**	addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
+**	and\s+a0,\s*[atx][0-9]+,\s*[atx][0-9]+
+**	or\s+a0,a0,\s*[atx][0-9]+
+**	sext.w\s+a0,\s*a0
+**	ret
+*/
+DEF_SAT_S_ADD_IMM_FMT_1(0, int32_t, uint32_t, 10, INT32_MIN, INT32_MAX)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_ADD " 2 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-4.c b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-4.c
new file mode 100644
index 0000000..df25cc6
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-4.c
@@ -0,0 +1,29 @@
+/* { dg-do compile } */
+/* { dg-skip-if  "" { *-*-* } { "-flto" } } */
+/* { 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_add_imm_int64_t_fmt_1_0:
+**	addi\s+[atx][0-9]+,\s*a0,\s*10
+**	xor\s+[atx][0-9]+,\s*a0,\s*[atx][0-9]+
+**	srli\s+[atx][0-9]+,\s*[atx][0-9]+,\s*63
+**	srli\s+[atx][0-9]+,\s*a0,\s*63
+**	xori\s+[atx][0-9]+,\s*[atx][0-9]+,\s*1
+**	and\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+**	srai\s+[atx][0-9]+,\s*a0,\s*63
+**	li\s+[atx][0-9]+,\s*-1
+**	srli\s+[atx][0-9]+,\s*[atx][0-9]+,\s*1
+**	xor\s+[atx][0-9]+,\s*[atx][0-9]+,\s*[atx][0-9]+
+**	neg\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
+**	and\s+a0,\s*[atx][0-9]+,\s*[atx][0-9]+
+**	or\s+a0,\s*a0,\s*[atx][0-9]+
+**	ret
+*/
+DEF_SAT_S_ADD_IMM_FMT_1(0, int64_t, uint64_t, 10, INT64_MIN, INT64_MAX)
+
+/* { dg-final { scan-rtl-dump-times ".SAT_ADD " 2 "expand" } } */
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-run-1.c b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-run-1.c
new file mode 100644
index 0000000..c71b717
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-run-1.c
@@ -0,0 +1,42 @@
+/* { dg-do run } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "sat_arith.h"
+
+DEF_SAT_S_ADD_IMM_FMT_1(0, int8_t, uint8_t, -128, INT8_MIN, INT8_MAX)
+DEF_SAT_S_ADD_IMM_FMT_1(1, int8_t, uint8_t, 127, INT8_MIN, INT8_MAX)
+DEF_SAT_S_ADD_IMM_FMT_1(2, int8_t, uint8_t, 6, INT8_MIN, INT8_MAX)
+DEF_SAT_S_ADD_IMM_FMT_1(3, int8_t, uint8_t, -6, INT8_MIN, INT8_MAX)
+
+#define T                       int8_t
+#define RUN(INDEX,T, x, expect) RUN_SAT_S_ADD_IMM_FMT_1(INDEX, T, x, expect)
+
+T d[][2] = {
+  /* arg_0,   expect */
+  {     -1,     -128, },
+  {      2,     -126, },
+  {      1,      127, },
+  {    -10,      117, },
+  {    122,      127, },
+  {    -10,       -4, },
+  {   -128,     -128, },
+  {    127,      121, },
+};
+
+int
+main ()
+{
+  RUN (0, T, d[0][0], d[0][1]);
+  RUN (0, T, d[1][0], d[1][1]);
+
+  RUN (1, T, d[2][0], d[2][1]);
+  RUN (1, T, d[3][0], d[3][1]);
+
+  RUN (2, T, d[4][0], d[4][1]);
+  RUN (2, T, d[5][0], d[5][1]);
+
+  RUN (3, T, d[6][0], d[6][1]);
+  RUN (3, T, d[7][0], d[7][1]);
+
+  return 0;
+}
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-run-2.c b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-run-2.c
new file mode 100644
index 0000000..187a098
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-run-2.c
@@ -0,0 +1,42 @@
+/* { dg-do run } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "sat_arith.h"
+
+DEF_SAT_S_ADD_IMM_FMT_1(0, int16_t, uint16_t, -32768, INT16_MIN, INT16_MAX)
+DEF_SAT_S_ADD_IMM_FMT_1(1, int16_t, uint16_t, 32767, INT16_MIN, INT16_MAX)
+DEF_SAT_S_ADD_IMM_FMT_1(2, int16_t, uint16_t, 100, INT16_MIN, INT16_MAX)
+DEF_SAT_S_ADD_IMM_FMT_1(3, int16_t, uint16_t, -100, INT16_MIN, INT16_MAX)
+
+#define T                       int16_t
+#define RUN(INDEX,T, x, expect) RUN_SAT_S_ADD_IMM_FMT_1(INDEX, T, x, expect)
+
+T d[][2] = {
+  /* arg_0,   expect */
+  {     -1,     -32768, },
+  {      2,     -32766, },
+  {      1,      32767, },
+  {    -10,      32757, },
+  {  32669,      32767, },
+  { -32768,     -32668, },
+  { -32768,     -32768, },
+  {      0,       -100, },
+};
+
+int
+main ()
+{
+  RUN (0, T, d[0][0], d[0][1]);
+  RUN (0, T, d[1][0], d[1][1]);
+
+  RUN (1, T, d[2][0], d[2][1]);
+  RUN (1, T, d[3][0], d[3][1]);
+
+  RUN (2, T, d[4][0], d[4][1]);
+  RUN (2, T, d[5][0], d[5][1]);
+
+  RUN (3, T, d[6][0], d[6][1]);
+  RUN (3, T, d[7][0], d[7][1]);
+
+  return 0;
+}
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-run-3.c b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-run-3.c
new file mode 100644
index 0000000..899fda8
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-run-3.c
@@ -0,0 +1,42 @@
+/* { dg-do run } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "sat_arith.h"
+
+DEF_SAT_S_ADD_IMM_FMT_1(0, int32_t, uint32_t, -2147483648, INT32_MIN, INT32_MAX)
+DEF_SAT_S_ADD_IMM_FMT_1(1, int32_t, uint32_t, 2147483647, INT32_MIN, INT32_MAX)
+DEF_SAT_S_ADD_IMM_FMT_1(2, int32_t, uint32_t, 100, INT32_MIN, INT32_MAX)
+DEF_SAT_S_ADD_IMM_FMT_1(3, int32_t, uint32_t, -100, INT32_MIN, INT32_MAX)
+
+#define T                       int32_t
+#define RUN(INDEX,T, x, expect) RUN_SAT_S_ADD_IMM_FMT_1(INDEX, T, x, expect)
+
+T d[][2] = {
+  /* arg_0,   expect */
+  {     -1,     -2147483648, },
+  {      2,     -2147483646, },
+  {      1,      2147483647, },
+  {    -10,      2147483637, },
+  {    300,             400, },
+  {   -300,            -200, },
+  {    100,               0, },
+  {      0,            -100, },
+};
+
+int
+main ()
+{
+  RUN (0, T, d[0][0], d[0][1]);
+  RUN (0, T, d[1][0], d[1][1]);
+
+  RUN (1, T, d[2][0], d[2][1]);
+  RUN (1, T, d[3][0], d[3][1]);
+
+  RUN (2, T, d[4][0], d[4][1]);
+  RUN (2, T, d[5][0], d[5][1]);
+
+  RUN (3, T, d[6][0], d[6][1]);
+  RUN (3, T, d[7][0], d[7][1]);
+
+  return 0;
+}
diff --git a/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-run-4.c b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-run-4.c
new file mode 100644
index 0000000..3dc4f72
--- /dev/null
+++ b/gcc/testsuite/gcc.target/riscv/sat_s_add_imm-run-4.c
@@ -0,0 +1,42 @@
+/* { dg-do run } */
+/* { dg-additional-options "-std=c99" } */
+
+#include "sat_arith.h"
+
+DEF_SAT_S_ADD_IMM_FMT_1(0, int64_t, uint64_t, (-9223372036854775807ll - 1), INT64_MIN, INT64_MAX)
+DEF_SAT_S_ADD_IMM_FMT_1(1, int64_t, uint64_t, 9223372036854775807ll, INT64_MIN, INT64_MAX)
+DEF_SAT_S_ADD_IMM_FMT_1(2, int64_t, uint64_t, 100, INT64_MIN, INT64_MAX)
+DEF_SAT_S_ADD_IMM_FMT_1(3, int64_t, uint64_t, -100, INT64_MIN, INT64_MAX)
+
+#define T                       int64_t
+#define RUN(INDEX,T, x, expect) RUN_SAT_S_ADD_IMM_FMT_1(INDEX, T, x, expect)
+
+T d[][2] = {
+  /* arg_0,   expect */
+  {     -1,     (-9223372036854775807ll - 1), },
+  {      2,           -9223372036854775806ll, },
+  {      1,            9223372036854775807ll, },
+  {     -7,            9223372036854775800ll, },
+  {      0,                              100, },
+  {     -1,                               99, },
+  {      0,                             -100, },
+  {    100,                                0, },
+};
+
+int
+main ()
+{
+  RUN (0, T, d[0][0], d[0][1]);
+  RUN (0, T, d[1][0], d[1][1]);
+
+  RUN (1, T, d[2][0], d[2][1]);
+  RUN (1, T, d[3][0], d[3][1]);
+
+  RUN (2, T, d[4][0], d[4][1]);
+  RUN (2, T, d[5][0], d[5][1]);
+
+  RUN (3, T, d[6][0], d[6][1]);
+  RUN (3, T, d[7][0], d[7][1]);
+
+  return 0;
+}