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#include "Halide.h"
#include <stdio.h>
using namespace Halide;
// Override Halide's malloc and free
bool custom_malloc_called = false;
bool custom_free_called = false;
void *my_malloc(JITUserContext *user_context, size_t x) {
custom_malloc_called = true;
void *orig = malloc(x + 32);
void *ptr = (void *)((((size_t)orig + 32) >> 5) << 5);
((void **)ptr)[-1] = orig;
return ptr;
}
void my_free(JITUserContext *user_context, void *ptr) {
custom_free_called = true;
free(((void **)ptr)[-1]);
}
int main(int argc, char **argv) {
if (get_jit_target_from_environment().arch == Target::WebAssembly) {
printf("[SKIP] WebAssembly JIT does not support custom allocators.\n");
return 0;
}
Func f, g;
Var x;
f(x) = x;
g(x) = f(x);
f.compute_root();
g.jit_handlers().custom_malloc = my_malloc;
g.jit_handlers().custom_free = my_free;
Buffer<int> im = g.realize({100000});
assert(custom_malloc_called);
assert(custom_free_called);
printf("Success!\n");
return 0;
}
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