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RISC-V: Add testcases for scalar unsigned SAT_SUB form 10

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After the middle-end support the form 10 of unsigned SAT_SUB and
the RISC-V backend implement the scalar .SAT_SUB, add more test
case to cover the form 10 of unsigned .SAT_SUB.

Form 10:
  #define SAT_SUB_U_10(T) \
  T sat_sub_u_10_##T (T x, T y) \
  { \
    T ret; \
    T overflow = __builtin_sub_overflow (x, y, &ret); \
    return !overflow ? ret : 0; \
  }

Passed the rv64gcv fully regression test.

gcc/testsuite/ChangeLog:

	* gcc.target/riscv/sat_arith.h: Add helper macro for test.
	* gcc.target/riscv/sat_u_sub-37.c: New test.
	* gcc.target/riscv/sat_u_sub-38.c: New test.
	* gcc.target/riscv/sat_u_sub-39.c: New test.
	* gcc.target/riscv/sat_u_sub-40.c: New test.
	* gcc.target/riscv/sat_u_sub-run-37.c: New test.
	* gcc.target/riscv/sat_u_sub-run-38.c: New test.
	* gcc.target/riscv/sat_u_sub-run-39.c: New test.
	* gcc.target/riscv/sat_u_sub-run-40.c: New test.

Signed-off-by: Pan Li <pan2.li@intel.com>
This commit is contained in:
Pan Li 2024-06-14 10:08:59 +08:00
parent 40609350e7
commit 896e043830
9 changed files with 182 additions and 0 deletions
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10
gcc/testsuite/gcc.target/riscv/sat_arith.h
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@ -147,6 +147,15 @@ sat_u_sub_##T##_fmt_9 (T x, T y) \
return overflow ? 0 : ret; \
}
#define DEF_SAT_U_SUB_FMT_10(T) \
T __attribute__((noinline)) \
sat_u_sub_##T##_fmt_10 (T x, T y) \
{ \
T ret; \
T overflow = __builtin_sub_overflow (x, y, &ret); \
return !overflow ? ret : 0; \
}
#define RUN_SAT_U_SUB_FMT_1(T, x, y) sat_u_sub_##T##_fmt_1(x, y)
#define RUN_SAT_U_SUB_FMT_2(T, x, y) sat_u_sub_##T##_fmt_2(x, y)
#define RUN_SAT_U_SUB_FMT_3(T, x, y) sat_u_sub_##T##_fmt_3(x, y)
@ -156,6 +165,7 @@ sat_u_sub_##T##_fmt_9 (T x, T y) \
#define RUN_SAT_U_SUB_FMT_7(T, x, y) sat_u_sub_##T##_fmt_7(x, y)
#define RUN_SAT_U_SUB_FMT_8(T, x, y) sat_u_sub_##T##_fmt_8(x, y)
#define RUN_SAT_U_SUB_FMT_9(T, x, y) sat_u_sub_##T##_fmt_9(x, y)
#define RUN_SAT_U_SUB_FMT_10(T, x, y) sat_u_sub_##T##_fmt_10(x, y)
#define DEF_VEC_SAT_U_SUB_FMT_1(T) \
void __attribute__((noinline)) \

18
gcc/testsuite/gcc.target/riscv/sat_u_sub-37.c Normal file
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@ -0,0 +1,18 @@
/* { 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_sub_uint8_t_fmt_10:
** sub\s+[atx][0-9]+,\s*a0,\s*a1
** sltu\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*a0,\s*[atx][0-9]+
** andi\s+a0,\s*a0,\s*0xff
** ret
*/
DEF_SAT_U_SUB_FMT_10(uint8_t)
/* { dg-final { scan-rtl-dump-times ".SAT_SUB " 2 "expand" } } */

19
gcc/testsuite/gcc.target/riscv/sat_u_sub-38.c Normal file
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@ -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_sub_uint16_t_fmt_10:
** sub\s+[atx][0-9]+,\s*a0,\s*a1
** sltu\s+[atx][0-9]+,\s*a0,\s*a1
** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
** and\s+a0,\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_SUB_FMT_10(uint16_t)
/* { dg-final { scan-rtl-dump-times ".SAT_SUB " 2 "expand" } } */

18
gcc/testsuite/gcc.target/riscv/sat_u_sub-39.c Normal file
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@ -0,0 +1,18 @@
/* { 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_sub_uint32_t_fmt_10:
** sub\s+[atx][0-9]+,\s*a0,\s*a1
** sltu\s+[atx][0-9]+,\s*a0,\s*a1
** addi\s+[atx][0-9]+,\s*[atx][0-9]+,\s*-1
** and\s+a0,\s*[atx][0-9]+,\s*[atx][0-9]+
** sext.w\s+a0,\s*a0
** ret
*/
DEF_SAT_U_SUB_FMT_10(uint32_t)
/* { dg-final { scan-rtl-dump-times ".SAT_SUB " 2 "expand" } } */

17
gcc/testsuite/gcc.target/riscv/sat_u_sub-40.c Normal file
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@ -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_sub_uint64_t_fmt_10:
** sub\s+[atx][0-9]+,\s*a0,\s*a1
** sltu\s+[atx][0-9]+,\s*a0,\s*a1
** addi\s+a0,\s*[atx][0-9]+,\s*-1
** and\s+a0,\s*[atx][0-9]+,\s*[atx][0-9]+
** ret
*/
DEF_SAT_U_SUB_FMT_10(uint64_t)
/* { dg-final { scan-rtl-dump-times ".SAT_SUB " 2 "expand" } } */

25
gcc/testsuite/gcc.target/riscv/sat_u_sub-run-37.c Normal file
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@ -0,0 +1,25 @@
/* { dg-do run { target { riscv_v } } } */
/* { dg-additional-options "-std=c99" } */
#include "sat_arith.h"
#define T uint8_t
#define RUN_SAT_BINARY RUN_SAT_U_SUB_FMT_10
DEF_SAT_U_SUB_FMT_10(T)
T test_data[][3] = {
/* arg_0, arg_1, expect */
{ 0, 0, 0, },
{ 0, 1, 0, },
{ 1, 1, 0, },
{ 255, 254, 1, },
{ 255, 255, 0, },
{ 254, 255, 0, },
{ 253, 254, 0, },
{ 0, 255, 0, },
{ 1, 255, 0, },
{ 32, 5, 27, },
};
#include "scalar_sat_binary.h"

25
gcc/testsuite/gcc.target/riscv/sat_u_sub-run-38.c Normal file
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@ -0,0 +1,25 @@
/* { dg-do run { target { riscv_v } } } */
/* { dg-additional-options "-std=c99" } */
#include "sat_arith.h"
#define T uint16_t
#define RUN_SAT_BINARY RUN_SAT_U_SUB_FMT_10
DEF_SAT_U_SUB_FMT_10(T)
T test_data[][3] = {
/* arg_0, arg_1, expect */
{ 0, 0, 0, },
{ 0, 1, 0, },
{ 1, 1, 0, },
{ 65535, 65534, 1, },
{ 65535, 65535, 0, },
{ 65534, 65535, 0, },
{ 65533, 65534, 0, },
{ 0, 65535, 0, },
{ 1, 65535, 0, },
{ 35, 5, 30, },
};
#include "scalar_sat_binary.h"

25
gcc/testsuite/gcc.target/riscv/sat_u_sub-run-39.c Normal file
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@ -0,0 +1,25 @@
/* { dg-do run { target { riscv_v } } } */
/* { dg-additional-options "-std=c99" } */
#include "sat_arith.h"
#define T uint32_t
#define RUN_SAT_BINARY RUN_SAT_U_SUB_FMT_10
DEF_SAT_U_SUB_FMT_10(T)
T test_data[][3] = {
/* arg_0, arg_1, expect */
{ 0, 0, 0, },
{ 0, 1, 0, },
{ 1, 1, 0, },
{ 4294967295, 4294967294, 1, },
{ 4294967295, 4294967295, 0, },
{ 4294967294, 4294967295, 0, },
{ 4294967293, 4294967294, 0, },
{ 1, 4294967295, 0, },
{ 2, 4294967295, 0, },
{ 5, 1, 4, },
};
#include "scalar_sat_binary.h"

25
gcc/testsuite/gcc.target/riscv/sat_u_sub-run-40.c Normal file
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@ -0,0 +1,25 @@
/* { dg-do run { target { riscv_v } } } */
/* { dg-additional-options "-std=c99" } */
#include "sat_arith.h"
#define T uint64_t
#define RUN_SAT_BINARY RUN_SAT_U_SUB_FMT_10
DEF_SAT_U_SUB_FMT_10(T)
T test_data[][3] = {
/* arg_0, arg_1, expect */
{ 0, 0, 0, },
{ 0, 1, 0, },
{ 1, 1, 0, },
{ 18446744073709551615u, 18446744073709551614u, 1, },
{ 18446744073709551615u, 18446744073709551615u, 0, },
{ 18446744073709551614u, 18446744073709551615u, 0, },
{ 18446744073709551613u, 18446744073709551614u, 0, },
{ 0, 18446744073709551615u, 0, },
{ 1, 18446744073709551615u, 0, },
{ 43, 11, 32, },
};
#include "scalar_sat_binary.h"