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sse4.2: first attempt at implementing mm_cmpestra #280

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sse4.2: first attempt at implementing mm_cmpestra #280

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sse4.2: first attempt at implementing mm_cmpestra
masterchef2209 May 9, 2020
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226 changes: 226 additions & 0 deletions simde/x86/sse4.2.h
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Original file line number Diff line number Diff line change
Expand Up @@ -37,6 +37,232 @@ SIMDE__BEGIN_DECLS
# define SIMDE_X86_SSE4_2_ENABLE_NATIVE_ALIASES
#endif

#define SIMDE_SIDD_CMP_EQUAL_ANY 0
#define SIMDE_SIDD_CMP_RANGES 1
#define SIMDE_SIDD_CMP_EQUAL_EACH 2
#define SIMDE_SIDD_CMP_EQUAL_ORDERED 3
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#if defined(SIMDE_X86_SSE4_2_ENABLE_NATIVE_ALIASES)
#define _SIDD_CMP_EQUAL_ANY SIMDE_SIDD_CMP_EQUAL_ANY
#define _SIDD_CMP_RANGES SIMDE_SIDD_CMP_RANGES
#define _SIDD_CMP_EQUAL_EACH SIMDE_SIDD_CMP_EQUAL_EACH
#define _SIDD_CMP_EQUAL_ORDERED SIMDE_SIDD_CMP_EQUAL_ORDERED
#endif

SIMDE__FUNCTION_ATTRIBUTES
int
simde_mm_cmpestra_8_(simde__m128i a, int la, simde__m128i b, int lb, const int imm8) {
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const int cmp_op = imm8 & 0x06;
const int polarity = imm8 & 0x30;
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simde__m128i_private
bool_res_ = simde__m128i_to_private(simde_mm_setzero_si128()),
a_ = simde__m128i_to_private(a),
b_ = simde__m128i_to_private(b);
const int upper_bound = (128 / 8) - 1;
int a_invalid = 0;
int b_invalid = 0;
for(int i = 0 ; i < (upper_bound) ; i++) {
for(int j = 0; j< (upper_bound) ; j++){
int bitvalue = ((a_.i8[i] == b_.i8[j]) ? 1 : 0);
bool_res_.i8[i] |= (( bitvalue ) << j);
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if(i == la)
a_invalid = 1;
if(j == lb)
b_invalid = 1;
switch(cmp_op){
case SIMDE_SIDD_CMP_EQUAL_ANY:
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break;
case SIMDE_SIDD_CMP_RANGES:
break;
case SIMDE_SIDD_CMP_EQUAL_EACH:
if(a_invalid && b_invalid)
bool_res_.i8[i] |= (1 << j);
break;
case SIMDE_SIDD_CMP_EQUAL_ORDERED:
if(a_invalid && !b_invalid)
bool_res_.i8[i] |= (1 << j);
else if(a_invalid && b_invalid)
bool_res_.i8[i] |= (1 << j);
break;
}
}
}
int32_t int_res_1 = 0;
int32_t int_res_2 = 0;
switch(cmp_op) {
case SIMDE_SIDD_CMP_EQUAL_ANY:
for(int i = 0 ; i < (upper_bound) ; i++){
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SIMDE__VECTORIZE_REDUCTION(|:int_res_1)
for(int j = 0 ; j < (upper_bound) ; j++){
int_res_1 |= (((bool_res_.i8[i] >> j) & 1) << i);
}
}
break;
case SIMDE_SIDD_CMP_RANGES:
for(int i = 0 ; i < (upper_bound) ; i++){
SIMDE__VECTORIZE_REDUCTION(|:int_res_1)
for(int j = 0 ; j < (upper_bound) ; j++){
int_res_1 |= ((((bool_res_.i8[i] >> j) & 1) & ((bool_res_.i8[i] >> (j + 1)) & 1)) << i);
j += 2;
}
}
break;
case SIMDE_SIDD_CMP_EQUAL_EACH:
for(int i = 0 ; i < (upper_bound) ; i++){
SIMDE__VECTORIZE_REDUCTION(|:int_res_1)
for(int j = 0 ; j < (upper_bound) ; j++){
int_res_1 |= (((bool_res_.i8[i] >> i) & 1) << i);
}
}
break;
case SIMDE_SIDD_CMP_EQUAL_ORDERED:
int_res_1 = (imm8 & 1) ? 0xff : 0xffff;
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for(int i = 0 ; i < (upper_bound) ; i++){
int k = i;
SIMDE__VECTORIZE_REDUCTION(|:int_res_1)
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for(int j = 0 ; j < (upper_bound-i) ; j++){
int_res_1 &= (((bool_res_.i8[k] >> j) & 1 ) << i) ;
k += 1;
}
}
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}
for(int i = 0; i < (upper_bound) ; i++){
if(polarity & 1){
if((polarity >> 1) & 1) {
if (i >= lb) {
int_res_2 |= (((int_res_1 >> i) & 1) << i);
}
else {
int_res_2 |= ((((int_res_1 >> i) & 1) ^ (-1)) << i);
}
}
else{
int_res_2 |= ((((int_res_1 >> i) & 1) ^ (-1)) << i);
}
}
else{
int_res_2 |= ( ((int_res_1 >> i) & 1) << i);
}
}
return ( (int_res_2 == 0) & (lb > upper_bound) );
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}

SIMDE__FUNCTION_ATTRIBUTES
int
simde_mm_cmpestra_16_(simde__m128i a, int la, simde__m128i b, int lb, const int imm8) {
const int cmp_op = imm8 & 0x06;
const int polarity = imm8 & 0x30;
simde__m128i_private
bool_res_ = simde__m128i_to_private(simde_mm_setzero_si128()),
a_ = simde__m128i_to_private(a),
b_ = simde__m128i_to_private(b);
const int upper_bound = (128 / 16) - 1;
int a_invalid = 0;
int b_invalid = 0;
for(int i = 0 ; i < (upper_bound) ; i++) {
for(int j = 0; j< (upper_bound) ; j++)
{
int bitvalue = ((a_.i16[i] == b_.i16[j]) ? 1 : 0);
bool_res_.i16[i] |= ((bitvalue) << j);
if(i == la)
a_invalid = 1;
if(j == lb)
b_invalid = 1;
switch(cmp_op){
case SIMDE_SIDD_CMP_EQUAL_ANY:
break;
case SIMDE_SIDD_CMP_RANGES:
break;
case SIMDE_SIDD_CMP_EQUAL_EACH:
if(a_invalid && b_invalid)
bool_res_.i16[i] |= (1 << j);
break;
case SIMDE_SIDD_CMP_EQUAL_ORDERED:
if(a_invalid && !b_invalid)
bool_res_.i16[i] |= (1 << j);
else if(a_invalid && b_invalid)
bool_res_.i16[i] |= (1 << j);
break;
}
}
}
int32_t int_res_1 = 0;
int32_t int_res_2 = 0;
switch(cmp_op) {
case SIMDE_SIDD_CMP_EQUAL_ANY:
for(int i = 0 ; i < (upper_bound) ; i++){
SIMDE__VECTORIZE_REDUCTION(|:int_res_1)
for (int j = 0 ; j < (upper_bound) ; j++){
int_res_1 |= (((bool_res_.i16[i] >> j) & 1) << i) ;
}
}
break;
case SIMDE_SIDD_CMP_RANGES:
for(int i = 0 ; i < (upper_bound) ; i++){
SIMDE__VECTORIZE_REDUCTION(|:int_res_1)
for(int j = 0 ; j < (upper_bound) ; j++){
int_res_1 |= ((((bool_res_.i16[i] >> j) & 1) & ((bool_res_.i16[i] >> (j + 1)) & 1)) << i);
j += 2;
}
}
break;
case SIMDE_SIDD_CMP_EQUAL_EACH:
for(int i = 0 ; i < (upper_bound) ; i++){
SIMDE__VECTORIZE_REDUCTION(|:int_res_1)
for(int j = 0 ; j < (upper_bound) ; j++){
int_res_1 |= (((bool_res_.i16[i] >> i) & 1) << i);
}
}
break;
case SIMDE_SIDD_CMP_EQUAL_ORDERED:
int_res_1 = (imm8 & 1) ? 0xff : 0xffff;
for(int i = 0 ; i < (upper_bound) ; i++){
int k = i;
SIMDE__VECTORIZE_REDUCTION(|:int_res_1)
for(int j = 0 ; j < (upper_bound-i) ; j++){
int_res_1 &= (((bool_res_.i16[k] >> j) & 1) << i) ;
k += 1;
}
}
}
for(int i = 0; i < (upper_bound) ; i++){
if(polarity & 1){
if((polarity >> 1) & 1) {
if (i >= lb) {
int_res_2 |= (((int_res_1 >> i) & 1) << i);
}
else {
int_res_2 |= ((((int_res_1 >> i) & 1) ^ (-1)) << i);
}
}
else{
int_res_2 |= ((((int_res_1 >> i) & 1) ^ (-1)) << i);
}
}
else{
int_res_2 |= (((int_res_1 >> i) & 1) << i);
}
}
return ((int_res_2 == 0) & (lb > upper_bound));
}

SIMDE__FUNCTION_ATTRIBUTES
int
simde_mm_cmpestra(simde__m128i a, int la, simde__m128i b, int lb, const int imm8){
#if defined(SIMDE_X86_SSE4_2_NATIVE)
return _mm_cmpestra(a, la, b, lb, imm8);
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#else
const int character_type = imm8 & 0x03;
if(character_type & 1)
return simde_mm_cmpestra_8_(a, la, b, lb, imm8);
else
return simde_mm_cmpestra_16_(a, la, b, lb, imm8);
#endif
}
#if defined(SIMDE_X86_SSE4_2_ENABLE_NATIVE_ALIASES)
# define _mm_cmpestra(a, la, b, lb, imm8) simde_mm_cmpestra(a, la, b, lb, imm8)
#endif

SIMDE__FUNCTION_ATTRIBUTES
simde__m128i
simde_mm_cmpgt_epi64 (simde__m128i a, simde__m128i b) {
Expand Down
107 changes: 107 additions & 0 deletions test/x86/sse4.2.c
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Original file line number Diff line number Diff line change
Expand Up @@ -24,9 +24,116 @@
#define SIMDE_TESTS_CURRENT_ISAX sse4_2
#include <test/x86/test-x86-internal.h>
#include <simde/x86/sse4.2.h>
#include <assert.h>

#if defined(SIMDE_X86_SSE4_2_NATIVE) || defined(SIMDE_NO_NATIVE) || defined(SIMDE_ALWAYS_BUILD_NATIVE_TESTS)

static MunitResult
test_simde_mm_cmpestra_16(const MunitParameter params[], void* data) {
(void) params;
(void) data;

const struct {
simde__m128i a;
int la;
simde__m128i b;
int lb;
const int imm8;
int r;
} test_vec[8] = {

};

printf("\n");
for (size_t i = 0 ; i < (sizeof(test_vec) / (sizeof(test_vec[0]))) ; i++) {
simde__m128i_private a, b;
int la, lb, r;
const int imm8 = (munit_rand_int_range(0, UINT8_MAX) | 1);

munit_rand_memory(sizeof(a), (uint8_t*) &a);
munit_rand_memory(sizeof(b), (uint8_t*) &b);
la = munit_rand_int_range(0, 128/16);
lb = munit_rand_int_range(0, 128/16);

r = simde_mm_cmpestra(simde__m128i_from_private(a), la, simde__m128i_from_private(b), lb, imm8);

printf(" { simde_mm_set_epi16(INT16_C(%6" PRId16 "), INT16_C(%6" PRId16 "), INT16_C(%6" PRId16 "), INT16_C(%6" PRId16 "),\n"
" INT16_C(%6" PRId16 "), INT16_C(%6" PRId16 "), INT16_C(%6" PRId16 "), INT16_C(%6" PRId16 ")),\n",
a.i16[7], a.i16[6], a.i16[5], a.i16[4], a.i16[3], a.i16[2], a.i16[1], a.i16[0]);
printf(" %d ,\n",la);
printf(" simde_mm_set_epi16(INT16_C(%6" PRId16 "), INT16_C(%6" PRId16 "), INT16_C(%6" PRId16 "), INT16_C(%6" PRId16 "),\n"
" INT16_C(%6" PRId16 "), INT16_C(%6" PRId16 "), INT16_C(%6" PRId16 "), INT16_C(%6" PRId16 ")),\n",
b.i16[7], b.i16[6], b.i16[5], b.i16[4], b.i16[3], b.i16[2], b.i16[1], b.i16[0]);
printf(" %d ,\n",lb);
printf(" %d ,\n",imm8);
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printf(" %d },\n",r);
}
return MUNIT_FAIL;

for (size_t i = 0 ; i < (sizeof(test_vec) / sizeof(test_vec[0])); i++) {
int r = simde_mm_cmpestra(test_vec[i].a, test_vec[i].la, test_vec[i].b, test_vec[i].lb, test_vec[i].imm8);
assert(r == test_vec[i].r);
}

return MUNIT_OK;
}

static MunitResult
test_simde_mm_cmpestra_8(const MunitParameter params[], void* data) {
(void) params;
(void) data;

const struct {
simde__m128i a;
int la;
simde__m128i b;
int lb;
const int imm8;
int r;
} test_vec[8] = {

};

printf("\n");
for (size_t i = 0 ; i < (sizeof(test_vec) / (sizeof(test_vec[0]))) ; i++) {
simde__m128i_private a, b;
int la, lb, r;
const int imm8 = (munit_rand_int_range(0, UINT8_MAX) & 0);

munit_rand_memory(sizeof(a), (uint8_t*) &a);
munit_rand_memory(sizeof(b), (uint8_t*) &b);
la = munit_rand_int_range(0, 128/8);
lb = munit_rand_int_range(0, 128/8);

r = simde_mm_cmpestra(simde__m128i_from_private(a), la, simde__m128i_from_private(b), lb, imm8);

printf(" { simde_mm_set_epi8(INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "),\n"
" INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "),\n"
" INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "),\n"
" INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 ")),\n",
a.i8[15], a.i8[14], a.i8[13], a.i8[12], a.i8[11], a.i8[10], a.i8[ 9], a.i8[ 8],
a.i8[ 7], a.i8[ 6], a.i8[ 5], a.i8[ 4], a.i8[ 3], a.i8[ 2], a.i8[ 1], a.i8[ 0]);
printf(" %d ,\n",la);
printf(" simde_mm_set_epi8(INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "),\n"
" INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "),\n"
" INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "),\n"
" INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 "), INT8_C(%4" PRId8 ")),\n",
b.i8[15], b.i8[14], b.i8[13], b.i8[12], b.i8[11], b.i8[10], b.i8[ 9], b.i8[ 8],
b.i8[ 7], b.i8[ 6], b.i8[ 5], b.i8[ 4], b.i8[ 3], b.i8[ 2], b.i8[ 1], b.i8[ 0]);
printf(" %d ,\n",lb);
printf(" %d ,\n",imm8);
printf(" %d },\n",r);
}
return MUNIT_FAIL;

for (size_t i = 0 ; i < (sizeof(test_vec) / sizeof(test_vec[0])); i++) {
int r = simde_mm_cmpestra(test_vec[i].a, test_vec[i].la, test_vec[i].b, test_vec[i].lb, test_vec[i].imm8);
assert(r == test_vec[i].r);
}

return MUNIT_OK;
}

static MunitResult
test_simde_mm_cmpgt_epi64(const MunitParameter params[], void* data) {
(void) params;
Expand Down