Halide 22.0.0 Halide compiler and libraries

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FuseGPUThreadLoops.h
Go to the documentation of this file.
1#ifndef HALIDE_FUSE_GPU_THREAD_LOOPS_H
2#define HALIDE_FUSE_GPU_THREAD_LOOPS_H
3
4/** \file
5 * Defines the lowering pass that fuses and normalizes loops over gpu
6 * threads to target CUDA, OpenCL, and Metal.
7 */
8
9#include "Expr.h"
10
11 namespace Halide {
12 namespace Internal {
13
14/** Rewrite all GPU loops to have a min of zero. */
15 Stmt zero_gpu_loop_mins(const Stmt &s);
16
17/** Converts Halide's GPGPU IR to the OpenCL/CUDA/Metal model. Within
18 * every loop over gpu block indices, fuse the inner loops over thread
19 * indices into a single loop (with predication to turn off
20 * threads). Push if conditions between GPU blocks to the innermost GPU threads.
21 * Also injects synchronization points as needed, and hoists
22 * shared allocations at the block level out into a single shared
23 * memory array, and heap allocations into a slice of a global pool
24 * allocated outside the kernel. */
25 Stmt fuse_gpu_thread_loops(Stmt s);
26
27} // namespace Internal
28} // namespace Halide
29
30#endif
Expr.h
Base classes for Halide expressions (Halide::Expr) and statements (Halide::Internal::Stmt)
Halide::Internal::fuse_gpu_thread_loops
Stmt fuse_gpu_thread_loops(Stmt s)
Converts Halide's GPGPU IR to the OpenCL/CUDA/Metal model.
Halide::Internal::zero_gpu_loop_mins
Stmt zero_gpu_loop_mins(const Stmt &s)
Rewrite all GPU loops to have a min of zero.
Halide
This file defines the class FunctionDAG, which is our representation of a Halide pipeline,...
Definition AbstractGenerator.h:19
Halide::LinkageType::Internal
@ Internal
Not visible externally, similar to 'static' linkage in C.
Halide::cast
Internal::ConstantInterval cast(Type t, const Internal::ConstantInterval &a)
Cast operators for ConstantIntervals.
Halide::Internal::Stmt
A reference-counted handle to a statement node.
Definition Expr.h:427