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#define INSN_NAME vqsub
#define TEST_MSG "VQSUB/VQSUBQ"
/* Extra tests for special cases:
- some requiring intermediate types larger than 64 bits to
compute saturation flag.
- corner case saturations with types smaller than 64 bits.
*/
void vqsub_extras(void);
#define EXTRA_TESTS vqsub_extras
#include "binary_sat_op.inc"
/* Expected results. */
VECT_VAR_DECL(expected,int,8,8) [] = { 0xdf, 0xe0, 0xe1, 0xe2,
0xe3, 0xe4, 0xe5, 0xe6 };
VECT_VAR_DECL(expected,int,16,4) [] = { 0xffce, 0xffcf,
0xffd0, 0xffd1 };
VECT_VAR_DECL(expected,int,32,2) [] = { 0xffffffbd, 0xffffffbe };
VECT_VAR_DECL(expected,int,64,1) [] = { 0xffffffffffffffac };
VECT_VAR_DECL(expected,uint,8,8) [] = { 0x9b, 0x9c, 0x9d, 0x9e,
0x9f, 0xa0, 0xa1, 0xa2 };
VECT_VAR_DECL(expected,uint,16,4) [] = { 0xff8a, 0xff8b,
0xff8c, 0xff8d };
VECT_VAR_DECL(expected,uint,32,2) [] = { 0xffffff79, 0xffffff7a };
VECT_VAR_DECL(expected,uint,64,1) [] = { 0xffffffffffffff68 };
VECT_VAR_DECL(expected,int,8,16) [] = { 0xdf, 0xe0, 0xe1, 0xe2,
0xe3, 0xe4, 0xe5, 0xe6,
0xe7, 0xe8, 0xe9, 0xea,
0xeb, 0xec, 0xed, 0xee };
VECT_VAR_DECL(expected,int,16,8) [] = { 0xffce, 0xffcf, 0xffd0, 0xffd1,
0xffd2, 0xffd3, 0xffd4, 0xffd5 };
VECT_VAR_DECL(expected,int,32,4) [] = { 0xffffffbd, 0xffffffbe,
0xffffffbf, 0xffffffc0 };
VECT_VAR_DECL(expected,int,64,2) [] = { 0xffffffffffffffac,
0xffffffffffffffad };
VECT_VAR_DECL(expected,uint,8,16) [] = { 0x9b, 0x9c, 0x9d, 0x9e,
0x9f, 0xa0, 0xa1, 0xa2,
0xa3, 0xa4, 0xa5, 0xa6,
0xa7, 0xa8, 0xa9, 0xaa };
VECT_VAR_DECL(expected,uint,16,8) [] = { 0xff8a, 0xff8b, 0xff8c, 0xff8d,
0xff8e, 0xff8f, 0xff90, 0xff91 };
VECT_VAR_DECL(expected,uint,32,4) [] = { 0xffffff79, 0xffffff7a,
0xffffff7b, 0xffffff7c };
VECT_VAR_DECL(expected,uint,64,2) [] = { 0xffffffffffffff68,
0xffffffffffffff69 };
/* 64-bits types, with 0 as second input. */
VECT_VAR_DECL(expected_64,int,64,1) [] = { 0xfffffffffffffff0 };
VECT_VAR_DECL(expected_64,uint,64,1) [] = { 0xfffffffffffffff0 };
VECT_VAR_DECL(expected_64,int,64,2) [] = { 0xfffffffffffffff0,
0xfffffffffffffff1 };
VECT_VAR_DECL(expected_64,uint,64,2) [] = { 0xfffffffffffffff0,
0xfffffffffffffff1 };
/* 64-bits types, other cases. */
VECT_VAR_DECL(expected_64_2,int,64,1) [] = { 0xffffffffffffffac };
VECT_VAR_DECL(expected_64_2,uint,64,1) [] = { 0xffffffffffffff68 };
VECT_VAR_DECL(expected_64_2,int,64,2) [] = { 0xffffffffffffffac,
0xffffffffffffffad };
VECT_VAR_DECL(expected_64_2,uint,64,2) [] = { 0xffffffffffffff68,
0xffffffffffffff69 };
/* 64-bits types, all causing cumulative saturation. */
VECT_VAR_DECL(expected_64_3,int,64,1) [] = { 0x8000000000000000 };
VECT_VAR_DECL(expected_64_3,uint,64,1) [] = { 0x0 };
VECT_VAR_DECL(expected_64_3,int,64,2) [] = { 0x7fffffffffffffff,
0x7fffffffffffffff };
VECT_VAR_DECL(expected_64_3,uint,64,2) [] = { 0x0, 0x0 };
/* smaller types, corner cases causing cumulative saturation. (1) */
VECT_VAR_DECL(expected_lt_64_1,int,8,8) [] = { 0x80, 0x80, 0x80, 0x80,
0x80, 0x80, 0x80, 0x80 };
VECT_VAR_DECL(expected_lt_64_1,int,16,4) [] = { 0x8000, 0x8000,
0x8000, 0x8000 };
VECT_VAR_DECL(expected_lt_64_1,int,32,2) [] = { 0x80000000, 0x80000000 };
VECT_VAR_DECL(expected_lt_64_1,int,8,16) [] = { 0x80, 0x80, 0x80, 0x80,
0x80, 0x80, 0x80, 0x80,
0x80, 0x80, 0x80, 0x80,
0x80, 0x80, 0x80, 0x80 };
VECT_VAR_DECL(expected_lt_64_1,int,16,8) [] = { 0x8000, 0x8000,
0x8000, 0x8000,
0x8000, 0x8000,
0x8000, 0x8000 };
VECT_VAR_DECL(expected_lt_64_1,int,32,4) [] = { 0x80000000, 0x80000000,
0x80000000, 0x80000000 };
/* smaller types, corner cases causing cumulative saturation. (2) */
VECT_VAR_DECL(expected_lt_64_2,uint,8,8) [] = { 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0 };
VECT_VAR_DECL(expected_lt_64_2,uint,16,4) [] = { 0x0, 0x0, 0x0, 0x0 };
VECT_VAR_DECL(expected_lt_64_2,uint,32,2) [] = { 0x0, 0x0 };
VECT_VAR_DECL(expected_lt_64_2,uint,8,16) [] = { 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0 };
VECT_VAR_DECL(expected_lt_64_2,uint,16,8) [] = { 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0 };
VECT_VAR_DECL(expected_lt_64_2,uint,32,4) [] = { 0x0, 0x0, 0x0, 0x0 };
void vqsub_extras(void)
{
DECL_VARIABLE_ALL_VARIANTS(vector1);
DECL_VARIABLE_ALL_VARIANTS(vector2);
DECL_VARIABLE_ALL_VARIANTS(vector_res);
/* Initialize input "vector1" from "buffer". */
TEST_MACRO_ALL_VARIANTS_2_5(VLOAD, vector1, buffer);
/* Use a second vector full of 0. */
VDUP(vector2, , int, s, 64, 1, 0x0);
VDUP(vector2, , uint, u, 64, 1, 0x0);
VDUP(vector2, q, int, s, 64, 2, 0x0);
VDUP(vector2, q, uint, u, 64, 2, 0x0);
#define MSG "64 bits saturation when adding zero"
TEST_BINARY_SAT_OP(INSN_NAME, , int, s, 64, 1, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, , uint, u, 64, 1, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, q, int, s, 64, 2, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, q, uint, u, 64, 2, MSG);
CHECK(TEST_MSG, int, 64, 1, PRIx64, expected_64, MSG);
CHECK(TEST_MSG, uint, 64, 1, PRIx64, expected_64, MSG);
CHECK(TEST_MSG, int, 64, 2, PRIx64, expected_64, MSG);
CHECK(TEST_MSG, uint, 64, 2, PRIx64, expected_64, MSG);
/* Another set of tests with non-zero values. */
VDUP(vector2, , int, s, 64, 1, 0x44);
VDUP(vector2, , uint, u, 64, 1, 0x88);
VDUP(vector2, q, int, s, 64, 2, 0x44);
VDUP(vector2, q, uint, u, 64, 2, 0x88);
#undef MSG
#define MSG "64 bits saturation cumulative_sat (2)"
TEST_BINARY_SAT_OP(INSN_NAME, , int, s, 64, 1, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, , uint, u, 64, 1, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, q, int, s, 64, 2, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, q, uint, u, 64, 2, MSG);
CHECK(TEST_MSG, int, 64, 1, PRIx64, expected_64_2, MSG);
CHECK(TEST_MSG, uint, 64, 1, PRIx64, expected_64_2, MSG);
CHECK(TEST_MSG, int, 64, 2, PRIx64, expected_64_2, MSG);
CHECK(TEST_MSG, uint, 64, 2, PRIx64, expected_64_2, MSG);
/* Another set of tests, with input values chosen to set
cumulative_sat in all cases. */
VDUP(vector2, , int, s, 64, 1, 0x7fffffffffffffffLL);
VDUP(vector2, , uint, u, 64, 1, 0xffffffffffffffffULL);
/* To check positive saturation, we need to write a positive value
in vector1. */
VDUP(vector1, q, int, s, 64, 2, 0x3fffffffffffffffLL);
VDUP(vector2, q, int, s, 64, 2, 0x8000000000000000LL);
VDUP(vector2, q, uint, u, 64, 2, 0xffffffffffffffffULL);
#undef MSG
#define MSG "64 bits saturation cumulative_sat (3)"
TEST_BINARY_SAT_OP(INSN_NAME, , int, s, 64, 1, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, , uint, u, 64, 1, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, q, int, s, 64, 2, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, q, uint, u, 64, 2, MSG);
CHECK(TEST_MSG, int, 64, 1, PRIx64, expected_64_3, MSG);
CHECK(TEST_MSG, uint, 64, 1, PRIx64, expected_64_3, MSG);
CHECK(TEST_MSG, int, 64, 2, PRIx64, expected_64_3, MSG);
CHECK(TEST_MSG, uint, 64, 2, PRIx64, expected_64_3, MSG);
/* To improve coverage, check saturation with less than 64 bits
too. */
VDUP(vector2, , int, s, 8, 8, 0x7F);
VDUP(vector2, , int, s, 16, 4, 0x7FFF);
VDUP(vector2, , int, s, 32, 2, 0x7FFFFFFF);
VDUP(vector2, q, int, s, 8, 16, 0x7F);
VDUP(vector2, q, int, s, 16, 8, 0x7FFF);
VDUP(vector2, q, int, s, 32, 4, 0x7FFFFFFF);
#undef MSG
#define MSG "less than 64 bits saturation cumulative_sat (1)"
TEST_BINARY_SAT_OP(INSN_NAME, , int, s, 8, 8, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, , int, s, 16, 4, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, , int, s, 32, 2, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, q, int, s, 8, 16, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, q, int, s, 16, 8, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, q, int, s, 32, 4, MSG);
CHECK(TEST_MSG, int, 8, 8, PRIx8, expected_lt_64_1, MSG);
CHECK(TEST_MSG, int, 16, 4, PRIx16, expected_lt_64_1, MSG);
CHECK(TEST_MSG, int, 32, 2, PRIx32, expected_lt_64_1, MSG);
CHECK(TEST_MSG, int, 8, 16, PRIx8, expected_lt_64_1, MSG);
CHECK(TEST_MSG, int, 16, 8, PRIx16, expected_lt_64_1, MSG);
CHECK(TEST_MSG, int, 32, 4, PRIx32, expected_lt_64_1, MSG);
/* Another set of tests with vector1 values smaller than
vector2. */
VDUP(vector1, , uint, u, 8, 8, 0x10);
VDUP(vector1, , uint, u, 16, 4, 0x10);
VDUP(vector1, , uint, u, 32, 2, 0x10);
VDUP(vector1, q, uint, u, 8, 16, 0x10);
VDUP(vector1, q, uint, u, 16, 8, 0x10);
VDUP(vector1, q, uint, u, 32, 4, 0x10);
VDUP(vector2, , uint, u, 8, 8, 0x20);
VDUP(vector2, , uint, u, 16, 4, 0x20);
VDUP(vector2, , uint, u, 32, 2, 0x20);
VDUP(vector2, q, uint, u, 8, 16, 0x20);
VDUP(vector2, q, uint, u, 16, 8, 0x20);
VDUP(vector2, q, uint, u, 32, 4, 0x20);
#undef MSG
#define MSG "less than 64 bits saturation cumulative_sat (2)"
TEST_BINARY_SAT_OP(INSN_NAME, , uint, u, 8, 8, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, , uint, u, 16, 4, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, , uint, u, 32, 2, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, q, uint, u, 8, 16, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, q, uint, u, 16, 8, MSG);
TEST_BINARY_SAT_OP(INSN_NAME, q, uint, u, 32, 4, MSG);
CHECK(TEST_MSG, uint, 8, 8, PRIx8, expected_lt_64_2, MSG);
CHECK(TEST_MSG, uint, 16, 4, PRIx16, expected_lt_64_2, MSG);
CHECK(TEST_MSG, uint, 32, 2, PRIx32, expected_lt_64_2, MSG);
CHECK(TEST_MSG, uint, 8, 16, PRIx8, expected_lt_64_2, MSG);
CHECK(TEST_MSG, uint, 16, 8, PRIx16, expected_lt_64_2, MSG);
CHECK(TEST_MSG, uint, 32, 4, PRIx32, expected_lt_64_2, MSG);
}
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