67 lines
2.7 KiB
Python
67 lines
2.7 KiB
Python
import ctypes
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from typing import ClassVar
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from tinygrad.device import Compiled, MallocAllocator
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from tinygrad.helpers import getenv, DEBUG, diskcache, cpu_time_execution
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from ctypes import CFUNCTYPE
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from tinygrad.codegen.kernel import LinearizerOptions
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from tinygrad.renderer.llvmir import uops_to_llvm_ir
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import llvmlite.binding as llvm
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LLVMOPT = bool(getenv("LLVMOPT"))
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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 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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@diskcache
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def compile_llvm(prg, llvmopt=LLVMOPT) -> bytes:
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mod = llvm.parse_assembly(prg)
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mod.verify()
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LLVM().optimizer.run(mod)
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if DEBUG >= 5: print(LLVM.target_machine.emit_assembly(mod))
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return LLVM.target_machine.emit_object(mod)
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class LLVMProgram:
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def __init__(self, name:str, lib:bytes):
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self.name, self.lib = name, lib
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LLVM().engine.add_object_file(llvm.object_file.ObjectFileRef.from_data(lib))
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self.fxn = LLVM.engine.get_function_address(name)
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def __call__(self, *bufs, wait=False):
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self.cfunc = CFUNCTYPE(ctypes.c_int, *[ctypes.c_int32 if isinstance(b, int) else ctypes.c_void_p for b in bufs])(self.fxn)
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return cpu_time_execution(lambda: self.cfunc(*bufs), enable=wait)
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LLVMDevice = Compiled(MallocAllocator, LinearizerOptions(supports_float4=False, has_local=False, has_shared=False), uops_to_llvm_ir, compile_llvm, LLVMProgram)
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