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StarPilot/tinygrad_repo/tinygrad/codegen/late/gater.py
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firestar5683 d97100bd14 tiny my BUTT
2026-06-23 12:01:44 -05:00

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Python

# this is a temporary intermediate step while we remove this index style
from tinygrad.uop.ops import PatternMatcher, UPat, Ops
from tinygrad.dtype import Invalid, dtypes
pm_move_gates_from_index = PatternMatcher([
# for image idx (must be first)
(UPat.var("buf").index(UPat.var("gate").where(UPat.var("idx_y"), UPat(arg=Invalid)),
UPat.var("gate").where(UPat.var("idx_x"), UPat(arg=Invalid))).load(name="l"),
lambda buf,gate,idx_y,idx_x,l: buf.index(idx_y, idx_x).load(l.vconst_like(0), gate)),
(UPat.var("buf").index(UPat.var("gate").where(UPat.var("idx_y"), UPat(arg=Invalid)),
UPat.var("gate").where(UPat.var("idx_x"), UPat(arg=Invalid))).store(UPat.var("data")),
lambda buf,gate,idx_y,idx_x,data: buf.index(idx_y, idx_x).store(data, gate)),
# here we create the alt value for load to be 0s and remove the where Invalid
(UPat((Ops.INDEX, Ops.SHRINK), src=(UPat(), UPat.var("gate").where(UPat.var("idx"), UPat(arg=Invalid)),), name="mop", allow_any_len=True) \
.load(name="l"), lambda mop,gate,idx,l: mop.replace(src=(mop.src[0],idx)+mop.src[2:]).load(l.vconst_like(0), gate)),
(UPat((Ops.INDEX, Ops.SHRINK), src=(UPat(), UPat.var("gate").where(UPat.var("idx"), UPat(arg=Invalid)),), name="mop", allow_any_len=True) \
.store(UPat.var("data")), lambda mop,gate,idx,data: mop.replace(src=(mop.src[0],idx)+mop.src[2:]).store(data, gate)),
# Where after gated load becomes alt value
(UPat.var("gate").where(UPat().load(UPat(), UPat.var("gate", dtype=dtypes.bool), name="l").or_casted(), UPat.var("a")), lambda gate,l,a:
l.replace(src=(l.src[0], a.src[0] if a.op is Ops.CAST and a.src[0].dtype == l.dtype else a.cast(l.dtype), l.src[2])).cast(a.dtype)),
(UPat.var("gate").where(UPat.var("a"), UPat().load(UPat(), ~UPat.var("gate", dtype=dtypes.bool), name="l").or_casted()), lambda gate,l,a:
l.replace(src=(l.src[0], a.src[0] if a.op is Ops.CAST and a.src[0].dtype == l.dtype else a.cast(l.dtype), l.src[2])).cast(a.dtype)),
])