profiler_inlined.cpp
#include "HalideRuntime.h"
extern "C" {
WEAK_INLINE int halide_profiler_set_current_func(halide_profiler_state *state, int tok, int t) {
// Use empty volatile asm blocks to prevent code motion. Otherwise
// llvm reorders or elides the stores.
volatile int *ptr = &(state->current_func);
// clang-format off
asm volatile ("":::);
*ptr = tok + t;
asm volatile ("":::);
// clang-format on
return 0;
}
WEAK_INLINE int halide_profiler_incr_active_threads(halide_profiler_state *state) {
volatile int *ptr = &(state->active_threads);
// clang-format off
asm volatile ("":::);
int ret = __sync_fetch_and_add(ptr, 1);
asm volatile ("":::);
// clang-format on
return ret;
}
WEAK_INLINE int halide_profiler_decr_active_threads(halide_profiler_state *state) {
volatile int *ptr = &(state->active_threads);
// clang-format off
asm volatile ("":::);
int ret = __sync_fetch_and_sub(ptr, 1);
asm volatile ("":::);
// clang-format on
return ret;
}
}