test_static.cpp

/*
  Copyright (c) 2010-2022, Intel Corporation
  All rights reserved.

  Redistribution and use in source and binary forms, with or without
  modification, are permitted provided that the following conditions are
  met:

    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.

    * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.

    * Neither the name of Intel Corporation nor the names of its
      contributors may be used to endorse or promote products derived from
      this software without specific prior written permission.


   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
   IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
   TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
   PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
   OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
   EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
   PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#if defined(__WASM__)
#define ISPC_IS_WASM
#elif defined(_WIN32) || defined(_WIN64)
#define ISPC_IS_WINDOWS
#elif defined(__linux__) || defined(__FreeBSD__)
#define ISPC_IS_LINUX
#elif defined(__APPLE__)
#define ISPC_IS_APPLE
#else
#error "Host OS was not detected"
#endif

#if defined(_WIN64)
#define ISPC_IS_WINDOWS64
#endif

#ifdef ISPC_IS_WINDOWS
#include <windows.h>
#endif // ISPC_IS_WINDOWS

#include <assert.h>
#include <stdint.h>
#include <stdio.h>
#include <string.h>
#if defined ISPC_IS_LINUX || defined ISPC_IS_WASM
#include <malloc.h>
#endif

#if (TEST_SIG == 7)
#define varying_f_sz f_sz
#define v1_varying_f_sz f_sz
#define v2_varying_f_sz f_sz
#define v4_varying_f_sz f_sz
#define v8_varying_f_sz f_sz
#define v16_varying_f_sz f_sz
#define v32_varying_f_sz f_sz
#define v64_varying_f_sz f_sz
#include TEST_HEADER
#endif

// For current tests we need max width multiplied by 4, i.e. 64*4
#define ARRAY_SIZE 256

#ifdef ISPC_IS_WINDOWS64
// __vectorcall calling convention is off by default.
#define CALLINGCONV //__vectorcall
#else
#define CALLINGCONV
#endif

extern "C" {
extern void CALLINGCONV f_v_cpu_entry_point(float *result);
extern void CALLINGCONV f_f_cpu_entry_point(float *result, float *a);
extern void CALLINGCONV f_fu_cpu_entry_point(float *result, float *a, float b);
extern void CALLINGCONV f_fi_cpu_entry_point(float *result, float *a, int *b);
extern void CALLINGCONV f_du_cpu_entry_point(float *result, double *a, double b);
extern void CALLINGCONV f_duf_cpu_entry_point(float *result, double *a, float b);
extern void CALLINGCONV f_di_cpu_entry_point(float *result, double *a, int *b);
extern void CALLINGCONV print_uf_cpu_entry_point(float a);
extern void CALLINGCONV print_f_cpu_entry_point(float *a);
extern void CALLINGCONV print_fuf_cpu_entry_point(float *a, float b);
extern void CALLINGCONV result_cpu_entry_point(float *val);
extern void CALLINGCONV print_result_cpu_entry_point();

void ISPCLaunch(void **handlePtr, void *f, void *d, int, int, int);
void ISPCSync(void *handle);
void *ISPCAlloc(void **handlePtr, int64_t size, int32_t alignment);
}

int width() {
#if defined(TEST_WIDTH)
    return TEST_WIDTH;
#else
#error "Unknown or unset TEST_WIDTH value"
#endif
}

void ISPCLaunch(void **handle, void *f, void *d, int count0, int count1, int count2) {
    *handle = (void *)(uintptr_t)0xdeadbeef;
    typedef void (*TaskFuncType)(void *, int, int, int, int, int, int, int, int, int, int);
    TaskFuncType func = (TaskFuncType)f;
    int count = count0 * count1 * count2, idx = 0;
    for (int k = 0; k < count2; ++k)
        for (int j = 0; j < count1; ++j)
            for (int i = 0; i < count0; ++i)
                func(d, 0, 1, idx++, count, i, j, k, count0, count1, count2);
}

void ISPCSync(void *) {}

void *ISPCAlloc(void **handle, int64_t size, int32_t alignment) {
    *handle = (void *)(uintptr_t)0xdeadbeef;
    // and now, we leak...
#ifdef ISPC_IS_WINDOWS
    return _aligned_malloc(size, alignment);
#elif defined ISPC_IS_LINUX
    return memalign(alignment, size);
#elif defined ISPC_IS_APPLE || defined ISPC_IS_WASM
    void *mem = malloc(size + (alignment - 1) + sizeof(void *));
    char *amem = ((char *)mem) + sizeof(void *);
    amem = amem + uint32_t(alignment - (reinterpret_cast<uint64_t>(amem) & (alignment - 1)));
    ((void **)amem)[-1] = mem;
    return amem;
#else
#error "Host OS was not detected"
#endif
}

#if defined(_WIN32) || defined(_WIN64)
#define ALIGN __declspec(align(64))
#else
#define ALIGN __attribute__((aligned(64)))
#endif

int main(int argc, char *argv[]) {
    int w = width();
    assert(w <= 64);

    ALIGN float returned_result[ARRAY_SIZE];
    ALIGN float vfloat[ARRAY_SIZE];
    ALIGN double vdouble[ARRAY_SIZE];
    ALIGN int vint[ARRAY_SIZE];
    ALIGN int vint2[ARRAY_SIZE];

    for (int i = 0; i < ARRAY_SIZE; ++i) {
        returned_result[i] = -1e20;
        vfloat[i] = i + 1;
        vdouble[i] = i + 1;
        vint[i] = 2 * (i + 1);
        vint2[i] = i + 5;
    }

    float b = 5.;

#if (TEST_SIG == 0)
    f_v_cpu_entry_point(returned_result);
#elif (TEST_SIG == 1)
    f_f_cpu_entry_point(returned_result, vfloat);
#elif (TEST_SIG == 2)
    f_fu_cpu_entry_point(returned_result, vfloat, b);
#elif (TEST_SIG == 3)
    f_fi_cpu_entry_point(returned_result, vfloat, vint);
#elif (TEST_SIG == 4)
    f_du_cpu_entry_point(returned_result, vdouble, b);
#elif (TEST_SIG == 5)
    f_duf_cpu_entry_point(returned_result, vdouble, static_cast<float>(b));
#elif (TEST_SIG == 6)
    f_di_cpu_entry_point(returned_result, vdouble, vint2);
#elif (TEST_SIG == 7)
    *returned_result = sizeof(ispc::f_sz);
    w = 1;
#elif (TEST_SIG == 32)
    print_uf_cpu_entry_point(static_cast<float>(b));
#elif (TEST_SIG == 33)
    print_f_cpu_entry_point(vfloat);
#elif (TEST_SIG == 34)
    print_fuf_cpu_entry_point(vfloat, static_cast<float>(b));
#else
#error "Unknown or unset TEST_SIG value"
#endif

    float expected_result[ARRAY_SIZE];
    memset(expected_result, 0, ARRAY_SIZE * sizeof(float));
#if (TEST_SIG < 32)
    result_cpu_entry_point(expected_result);
#else
    print_result_cpu_entry_point();
    return 0;
#endif

    int errors = 0;
    for (int i = 0; i < w; ++i) {
        if (returned_result[i] != expected_result[i]) {
#ifdef EXPECT_FAILURE
            // bingo, failed
            return 1;
#else
            printf("%s: value %d disagrees: returned %f [%a], expected %f [%a]\n", argv[0], i, returned_result[i],
                   returned_result[i], expected_result[i], expected_result[i]);
            ++errors;
#endif // EXPECT_FAILURE
        }
    }

#ifdef EXPECT_FAILURE
    // Don't expect to get here
    return 0;
#else
    return errors > 0;
#endif
}