#ifndef HALIDE_SYNCTHREADS_H
#define HALIDE_SYNCTHREADS_H
/** \file
* Defines the lowering pass that fuses and normalizes loops over gpu
* threads to target CUDA, OpenCL, and Metal.
*/
#include "IR.h"
namespace Halide {
namespace Internal {
/** Rewrite all GPU loops to have a min of zero. */
Stmt zero_gpu_loop_mins(Stmt s);
/** Converts Halide's GPGPU IR to the OpenCL/CUDA/Metal model. Within every
* loop over gpu block indices, fuse the inner loops over thread
* indices into a single loop (with predication to turn off
* threads). Also injects synchronization points as needed, and hoists
* allocations at the block level out into a single shared memory
* array. */
Stmt fuse_gpu_thread_loops(Stmt s);
}
}
#endif