mirror of
https://github.com/tinygrad/tinygrad.git
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68 lines
2.8 KiB
Python
68 lines
2.8 KiB
Python
import time, hashlib, ctypes
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from typing import ClassVar
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from tinygrad.ops import Compiled
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from tinygrad.helpers import getenv, DEBUG
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from ctypes import CFUNCTYPE
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from tinygrad.codegen.linearizer import LinearizerOptions
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from tinygrad.renderer.llvmir import uops_to_llvm_ir
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from tinygrad.runtime.lib import RawMallocBuffer
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import llvmlite.binding as llvm # type: ignore
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class LLVM:
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target_machine: ClassVar[llvm.targets.TargetMachine] = None
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engine: ClassVar[llvm.executionengine.ExecutionEngine] = None
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optimizer: ClassVar[llvm.passmanagers.ModulePassManager] = None
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def __init__(self):
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if LLVM.engine is not None: return
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llvm.initialize()
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llvm.initialize_native_target()
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llvm.initialize_native_asmprinter()
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llvm.initialize_native_asmparser()
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target = llvm.Target.from_triple(llvm.get_process_triple())
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LLVM.optimizer = llvm.create_module_pass_manager()
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LLVM.target_machine = target.create_target_machine(opt=2) # this opt actually can change things. ex: opt=3 means no FMA, opt=2 means FMA
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LLVM.target_machine.add_analysis_passes(LLVM.optimizer)
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# TODO: this makes compile times so much faster
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if getenv("LLVMOPT"):
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llvm.set_option(str(), '-force-vector-interleave=4') # this makes sum the same speed as torch, it also doubles the (slow) conv speed
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if DEBUG >= 4: llvm.set_option(str(), '--debug-only=loop-vectorize')
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#llvm.set_option(str(), '--debug')
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# does this do anything?
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builder = llvm.create_pass_manager_builder()
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builder.opt_level = 3
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builder.size_level = 0
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builder.loop_vectorize = True
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builder.slp_vectorize = True
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builder.populate(LLVM.optimizer)
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LLVM.target_machine.set_asm_verbosity(True)
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backing_mod = llvm.parse_assembly(str())
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backing_mod.triple = llvm.get_process_triple()
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LLVM.engine = llvm.create_mcjit_compiler(backing_mod, LLVM.target_machine)
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class LLVMProgram:
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def __init__(self, name:str, prg:str, binary=False):
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self.mod = llvm.parse_assembly(prg)
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self.mod.verify()
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LLVM().optimizer.run(self.mod)
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self.mod.name = hashlib.sha1(prg.encode('utf-8')).hexdigest()
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if DEBUG >= 5: print(LLVM.target_machine.emit_assembly(self.mod))
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LLVM.engine.add_module(self.mod)
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LLVM.engine.finalize_object()
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self.fxn = LLVM.engine.get_function_address(name)
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def __del__(self):
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if hasattr(self, 'mod'): LLVM.engine.remove_module(self.mod)
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def __call__(self, unused_global_size, unused_local_size, *bufs, wait=False):
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cfunc = CFUNCTYPE(ctypes.c_int, *[ctypes.c_void_p for _ in bufs])(self.fxn)
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if wait: st = time.monotonic()
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cfunc(*[x._buf for x in bufs])
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if wait: return time.monotonic()-st
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LLVMBuffer = Compiled(RawMallocBuffer, LinearizerOptions(supports_float4=False, has_local=False), uops_to_llvm_ir, LLVMProgram)
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