remove expr_idxs [run_process_replay] (#6567)

* remove expr_idxs [run_process_replay]

* goodbye that test

test/test_conv_shapetracker.py

@@ -51,10 +51,6 @@ class TestConvShapetracker(unittest.TestCase):
       print(i, i1, i2, si.inputs[0].size, i1==i2)
       #self.assertEqual(i1, i2)
 
-    for stt in [st, test_st]:
-      s,va = stt.expr_idxs()
-      print(s)
-      print(va)
     with self.assertRaises(AssertionError):
       assert len(st.views) <= 2
 

test/test_symbolic_shapetracker.py

@@ -10,18 +10,6 @@ class TestSymbolic(unittest.TestCase):
     assert st.shape == (x, 3)
     assert st.real_strides() == (3, 1)
 
-  def test_expr_idxs(self):
-    x = Variable("x", 1, 100)
-    st = ShapeTracker.from_shape((x, 3))
-    idxs = [Variable("x", 0, 100), Variable("y", 0, 100)]
-    e1, e2 = st.expr_idxs(idxs)
-    assert e1.render() == "((x*3)+y)"
-    assert e2.render() == "1"
-    st = st.permute((1, 0))
-    e1, e2 = st.expr_idxs(idxs)
-    assert e1.render() == "((y*3)+x)"
-    assert e2.render() == "1"
-
   @unittest.expectedFailure
   def test_real_strides_0(self):
     st = ShapeTracker(views=(View(shape=(2, (NumNode(1)+Variable('start_pos', 1, 8)), 1, 1), strides=(8, 1, 0, 0), offset=0, mask=((0, 2), (0, Variable('start_pos', 1, 8)), (0, 1), (0, 1)), contiguous=False), View(shape=(2, (NumNode(1)+Variable('start_pos', 1, 8))), strides=((NumNode(1)+Variable('start_pos', 1, 8)), 1), offset=0, mask=None, contiguous=True)))   # noqa: E501
@@ -230,22 +218,6 @@ class TestSymbolicPad(unittest.TestCase):
     assert t.shape == (9,)
     st = t.lazydata.st
     print(st)
-    # TODO: fix this, required for symbolic arange
-    with self.assertRaises(RuntimeError):
-      st.expr_idxs()
-
-class TestSymbolicShapeExpr(unittest.TestCase):
-  def test_symbolic_expr_idxs(self):
-    # taken from symbolic shape llama
-    i = Variable("i", 1, 120)
-    gidx0 = Variable("gidx0", 0, i)
-    lidx1 = Variable("lidx1", 0, 7)
-    idx = (gidx0, lidx1, NumNode(1))
-    shape = (i+1, 8, 4)
-    strides = (1, (i*4)+4, i+1)
-    st = ShapeTracker((View.create(shape, strides), ))
-    idx, _valid = st.expr_idxs(idx)
-    assert idx.render() == "((lidx1*((i*4)+4))+1+gidx0+i)"
 
 if __name__ == '__main__':
   unittest.main()

test/unit/test_shapetracker.py

@@ -1,16 +1,19 @@
 #!/usr/bin/env python
 import unittest
 import numpy as np
-from tinygrad.helpers import prod, DEBUG
+from tinygrad.dtype import dtypes
+from tinygrad.helpers import prod
 from tinygrad.shape.shapetracker import ShapeTracker, View
 from tinygrad.shape.symbolic import Variable, NumNode
+from tinygrad.ops import UOp, UOps, graph_rewrite
+from tinygrad.codegen.uopgraph import constant_folder
 from itertools import product
 
-def shapetracker_getitem(st, val):
-  _locals = {"idx0": val, "valid": 1}
-  idx, valid = st.reshape((st.size,)).expr_idxs()
-  exec(f"valid={valid.render()};idx0={idx.render()}", None, _locals)
-  return _locals["idx0"] if _locals["valid"] else -1
+def shapetracker_getitem(st:ShapeTracker, val:int):
+  idx, valid = st.reshape((st.size,)).to_indexed_uops([UOp.const(dtypes.pyint, val)])
+  idx, valid = graph_rewrite(idx, constant_folder), graph_rewrite(valid, constant_folder)
+  assert idx.op is UOps.CONST and valid.op is UOps.CONST
+  return idx.arg, valid.arg
 
 class CheckingShapeTracker:
   def __init__(self, shape):
@@ -70,10 +73,8 @@ class CheckingShapeTracker:
   def contiguous(self): return self.st.contiguous
 
   def assert_same(self):
-    x = [shapetracker_getitem(self.st, i) for i in range(prod(self.st.shape))]
+    x = [(v[0] if (v:=shapetracker_getitem(self.st, i))[1] else -1) for i in range(prod(self.st.shape))]
     y = [self[i] for i in range(prod(self.shape))]
-    idx, valid = self.st.expr_idxs()
-    if DEBUG >= 1: print(x, y, self.st.shape, self.shape, idx.render(), valid.render(), self.st)
     assert self.st.shape == self.shape
     assert x == y, f"mismatch shapetracker:{x} real:{y}"
 
@@ -163,7 +164,6 @@ class TestIndexExpressions2d(unittest.TestCase):
   def tearDown(self):
     for st, offset, shape, idxs_expr in zip(self.sts, self.offset, self.shapes, self.idxs_exprs):
       numel = prod(shape)
-      assert idxs_expr(self.default_idxs(st.shape)) == st.expr_idxs(None)[0]
       self.check_bounds(idxs_expr(self.default_idxs(st.shape)), offset, numel)
       idx0s = [(0,0), (0, min(1, st.shape[0]-1)), (0, st.shape[0]-1), (min(3, st.shape[0]-1), min(6, st.shape[0]-1)), (st.shape[0]-1, st.shape[0]-1)]
       idx1s = [(0,0), (0, min(1, st.shape[1]-1)), (0, st.shape[1]-1), (min(3, st.shape[1]-1), min(6, st.shape[1]-1)), (st.shape[1]-1, st.shape[1]-1)]
@@ -171,7 +171,6 @@ class TestIndexExpressions2d(unittest.TestCase):
                (st.shape[2]-1, st.shape[2]-1)] if len(st.shape) == 3 else [None for _ in idx0s]
       for idx0, idx1, idx2 in product(idx0s, idx1s, idx2s):
         idxs = [Variable(f"idx{i}", idx[0], idx[1]) for i, idx in enumerate((idx0, idx1, idx2)) if idx is not None]
-        assert idxs_expr(idxs) == st.expr_idxs(idxs)[0]
         self.check_bounds(idxs_expr(idxs), offset, numel)
 
   def default_idx(self, shape):
@@ -786,14 +785,6 @@ class TestShapeTrackerSize(unittest.TestCase):
                                                                                strides=(0, 128, 0, 4096, 1), offset=0, mask=None, contiguous=False)))
     self.assertEqual(st.real_size(), 8389632)
 
-class TestIdxs(unittest.TestCase):
-  def test_check_idx_range(self):
-    # generated from: (Tensor.rand(4096,599*64) @ Tensor.rand(599*64,1024)).realize()
-    # TODO: use int64
-    st = ShapeTracker(views=(View(shape=(4096, 1024, 599, 1), strides=(613376, 599, 1, 0), offset=0, mask=None, contiguous=True),))
-    with self.assertRaises(AssertionError):
-      st.expr_idxs()
-
 class TestConsecutive(unittest.TestCase):
   @classmethod
   def setUpClass(self):

test/unit/test_shapetracker_math.py

@@ -3,7 +3,8 @@ from typing import List
 from tinygrad.helpers import prod
 from tinygrad.shape.view import View
 from tinygrad.shape.shapetracker import ShapeTracker
-from tinygrad.shape.symbolic import Variable, sym_infer
+from tinygrad.shape.symbolic import Variable
+from test.unit.test_shapetracker import shapetracker_getitem
 
 class MultiShapeTracker:
   def __init__(self, sts:List[ShapeTracker]): self.sts = sts
@@ -19,14 +20,9 @@ class MultiShapeTracker:
 def st_equal(st1:ShapeTracker, st2:ShapeTracker) -> bool:
   if st1.shape != st2.shape: return False
   if st1 == st2: return True
-  idx = Variable("idx", 0, prod(st1.shape)-1)
-  st1_idx, st1_valid = st1.reshape((st1.size,)).expr_idxs([idx])
-  st2_idx, st2_valid = st2.reshape((st2.size,)).expr_idxs([idx])
-  for i in range(idx.min, idx.max + 1):
-    st1_off = sym_infer(st1_idx, {idx: i})
-    st2_off = sym_infer(st2_idx, {idx: i})
-    st1_v = sym_infer(st1_valid, {idx: i})
-    st2_v = sym_infer(st2_valid, {idx: i})
+  for i in range(0, prod(st1.shape)):
+    st1_off, st1_v = shapetracker_getitem(st1, i)
+    st2_off, st2_v = shapetracker_getitem(st2, i)
     if st1_v != st2_v or (st1_off != st2_off and st1_v):
       print(f"ST MISMATCH @ {i}, {st1_v=} != {st2_v=}, {st1_off=} != {st2_off=}")
       print(st1)