Viewing file:  vqrdmulh_n.c (4.78 KB) -rw-r--r--
Select action/file-type:
 (+) |  (+) |  (+) | Code (+) | Session (+) |  (+) | SDB (+) |  (+) |  (+) |  (+) |  (+) |  (+) |
#include <arm_neon.h>
#include "arm-neon-ref.h"
#include "compute-ref-data.h"
/* Expected results. */
VECT_VAR_DECL(expected,int,16,4) [] = { 0xfffc, 0xfffc, 0xfffc, 0xfffd };
VECT_VAR_DECL(expected,int,32,2) [] = { 0xfffffffe, 0xfffffffe };
VECT_VAR_DECL(expected,int,16,8) [] = { 0x6, 0x6, 0x6, 0x5,
0x5, 0x4, 0x4, 0x4 };
VECT_VAR_DECL(expected,int,32,4) [] = { 0xfffffffe, 0xfffffffe,
0xfffffffe, 0xfffffffe };
/* Expected results when multiplication saturates. */
VECT_VAR_DECL(expected_mul,int,16,4) [] = { 0x7fff, 0x7fff, 0x7fff, 0x7fff };
VECT_VAR_DECL(expected_mul,int,32,2) [] = { 0x7fffffff, 0x7fffffff };
VECT_VAR_DECL(expected_mul,int,16,8) [] = { 0x7fff, 0x7fff, 0x7fff, 0x7fff,
0x7fff, 0x7fff, 0x7fff, 0x7fff };
VECT_VAR_DECL(expected_mul,int,32,4) [] = { 0x7fffffff, 0x7fffffff,
0x7fffffff, 0x7fffffff };
/* Expected results when rounding should not cause saturation. */
VECT_VAR_DECL(expected_round,int,16,4) [] = { 0x7fff, 0x7fff, 0x7fff, 0x7fff };
VECT_VAR_DECL(expected_round,int,32,2) [] = { 0x7fffffff, 0x7fffffff };
VECT_VAR_DECL(expected_round,int,16,8) [] = { 0x7fff, 0x7fff, 0x7fff, 0x7fff,
0x7fff, 0x7fff, 0x7fff, 0x7fff };
VECT_VAR_DECL(expected_round,int,32,4) [] = { 0x7fffffff, 0x7fffffff,
0x7fffffff, 0x7fffffff };
#define INSN vqrdmulh
#define TEST_MSG "VQRDMULH_N"
#define FNNAME1(NAME) void exec_ ## NAME ## _n (void)
#define FNNAME(NAME) FNNAME1(NAME)
FNNAME (INSN)
{
int i;
/* vector_res = vqrdmulh_n(vector,val), then store the result. */
#define TEST_VQRDMULH_N2(INSN, Q, T1, T2, W, N, L, CMT) \
Set_Neon_Cumulative_Sat(0, VECT_VAR(vector_res, T1, W, N)); \
VECT_VAR(vector_res, T1, W, N) = \
INSN##Q##_n_##T2##W(VECT_VAR(vector, T1, W, N), \
L); \
vst1##Q##_##T2##W(VECT_VAR(result, T1, W, N), \
VECT_VAR(vector_res, T1, W, N))
/* Two auxliary macros are necessary to expand INSN */
#define TEST_VQRDMULH_N1(INSN, Q, T1, T2, W, N, L, CMT) \
TEST_VQRDMULH_N2(INSN, Q, T1, T2, W, N, L, CMT)
#define TEST_VQRDMULH_N(Q, T1, T2, W, N, L, CMT) \
TEST_VQRDMULH_N1(INSN, Q, T1, T2, W, N, L, CMT)
DECL_VARIABLE(vector, int, 16, 4);
DECL_VARIABLE(vector, int, 32, 2);
DECL_VARIABLE(vector, int, 16, 8);
DECL_VARIABLE(vector, int, 32, 4);
DECL_VARIABLE(vector_res, int, 16, 4);
DECL_VARIABLE(vector_res, int, 32, 2);
DECL_VARIABLE(vector_res, int, 16, 8);
DECL_VARIABLE(vector_res, int, 32, 4);
clean_results ();
VLOAD(vector, buffer, , int, s, 16, 4);
VLOAD(vector, buffer, , int, s, 32, 2);
VLOAD(vector, buffer, q, int, s, 16, 8);
VLOAD(vector, buffer, q, int, s, 32, 4);
/* Choose multiplier arbitrarily. */
#define CMT ""
TEST_VQRDMULH_N(, int, s, 16, 4, 0x2233, CMT);
TEST_VQRDMULH_N(, int, s, 32, 2, 0x12345678, CMT);
TEST_VQRDMULH_N(q, int, s, 16, 8, 0xCD12, CMT);
TEST_VQRDMULH_N(q, int, s, 32, 4, 0xFA23456, CMT);
CHECK(TEST_MSG, int, 16, 4, PRIx16, expected, CMT);
CHECK(TEST_MSG, int, 32, 2, PRIx32, expected, CMT);
CHECK(TEST_MSG, int, 16, 8, PRIx16, expected, CMT);
CHECK(TEST_MSG, int, 32, 4, PRIx32, expected, CMT);
/* Now use input values such that the multiplication causes
saturation. */
#define TEST_MSG_MUL " (check mul cumulative saturation)"
VDUP(vector, , int, s, 16, 4, 0x8000);
VDUP(vector, , int, s, 32, 2, 0x80000000);
VDUP(vector, q, int, s, 16, 8, 0x8000);
VDUP(vector, q, int, s, 32, 4, 0x80000000);
TEST_VQRDMULH_N(, int, s, 16, 4, 0x8000, TEST_MSG_MUL);
TEST_VQRDMULH_N(, int, s, 32, 2, 0x80000000, TEST_MSG_MUL);
TEST_VQRDMULH_N(q, int, s, 16, 8, 0x8000, TEST_MSG_MUL);
TEST_VQRDMULH_N(q, int, s, 32, 4, 0x80000000, TEST_MSG_MUL);
CHECK(TEST_MSG, int, 16, 4, PRIx16, expected_mul, TEST_MSG_MUL);
CHECK(TEST_MSG, int, 32, 2, PRIx32, expected_mul, TEST_MSG_MUL);
CHECK(TEST_MSG, int, 16, 8, PRIx16, expected_mul, TEST_MSG_MUL);
CHECK(TEST_MSG, int, 32, 4, PRIx32, expected_mul, TEST_MSG_MUL);
/* Use input values where rounding produces a result equal to the
saturation value, but does not set the saturation flag. */
#define TEST_MSG_ROUND " (check rounding)"
VDUP(vector, , int, s, 16, 4, 0x8000);
VDUP(vector, , int, s, 32, 2, 0x80000000);
VDUP(vector, q, int, s, 16, 8, 0x8000);
VDUP(vector, q, int, s, 32, 4, 0x80000000);
TEST_VQRDMULH_N(, int, s, 16, 4, 0x8001, TEST_MSG_ROUND);
TEST_VQRDMULH_N(, int, s, 32, 2, 0x80000001, TEST_MSG_ROUND);
TEST_VQRDMULH_N(q, int, s, 16, 8, 0x8001, TEST_MSG_ROUND);
TEST_VQRDMULH_N(q, int, s, 32, 4, 0x80000001, TEST_MSG_ROUND);
CHECK(TEST_MSG, int, 16, 4, PRIx16, expected_round, TEST_MSG_ROUND);
CHECK(TEST_MSG, int, 32, 2, PRIx32, expected_round, TEST_MSG_ROUND);
CHECK(TEST_MSG, int, 16, 8, PRIx16, expected_round, TEST_MSG_ROUND);
CHECK(TEST_MSG, int, 32, 4, PRIx32, expected_round, TEST_MSG_ROUND);
}
int main (void)
{
exec_vqrdmulh_n ();
return 0;
}
|
