From 6ef3270fc80cae1db234dc040f7398b9d721bb65 Mon Sep 17 00:00:00 2001
From: George Hotz <72895+geohot@users.noreply.github.com>
Date: Fri, 5 Sep 2025 18:59:54 -0700
Subject: [PATCH] fix opt gate (#12050)

---
 tinygrad/codegen/__init__.py | 33 +++++++++++++++++----------------
 tinygrad/codegen/simplify.py |  2 +-
 2 files changed, 18 insertions(+), 17 deletions(-)

diff --git a/tinygrad/codegen/__init__.py b/tinygrad/codegen/__init__.py
index 63b9679e16..faa0219115 100644
--- a/tinygrad/codegen/__init__.py
+++ b/tinygrad/codegen/__init__.py
@@ -44,28 +44,29 @@ rewrites_for_linearizer = [
   RewriteStep(block_merge, name="Linearizer: Merge Blocks"),
   RewriteStep(pm_finalize, name="Linearizer: Finalize")]
 
-def get_rewrites_for_renderer(opts:Renderer, linearizer:bool=True) -> list[RewriteStep]:
+def get_rewrites_for_renderer(opts:Renderer, optimize:bool=True, linearizer:bool=True) -> list[RewriteStep]:
   # cache with the values of the context vars
-  return _get_rewrites_for_renderer(opts, linearizer, QUANTIZE.value, DEVECTORIZE.value, TRANSCENDENTAL.value)
+  return _get_rewrites_for_renderer(opts, optimize, linearizer, QUANTIZE.value, DEVECTORIZE.value, TRANSCENDENTAL.value)
 
 @functools.cache
-def _get_rewrites_for_renderer(opts:Renderer, linearizer:bool, _QUANTIZE, _DEVECTORIZE, _TRANSCENDENTAL) -> list[RewriteStep]:
+def _get_rewrites_for_renderer(opts:Renderer, optimize:bool, linearizer:bool, _QUANTIZE, _DEVECTORIZE, _TRANSCENDENTAL) -> list[RewriteStep]:
   # ** lowerer (rewrite_shapetracker_with_index) **
   ret: list[RewriteStep] = []
 
-  # view pushing
-  ret.extend(rewrites_for_views)
+  if optimize:
+    # view pushing
+    ret.extend(rewrites_for_views)
 
-  # lowerer first
-  if _QUANTIZE and opts.device in {"CPU", "DSP"}: ret.append(RewriteStep(pm_quant, name="quantize"))
-  ret.append(RewriteStep(pm_lowerer, get_index, name="lowerer", bottom_up=True))
+    # lowerer first
+    if _QUANTIZE and opts.device in {"CPU", "DSP"}: ret.append(RewriteStep(pm_quant, name="quantize"))
+    ret.append(RewriteStep(pm_lowerer, get_index, name="lowerer", bottom_up=True))
 
-  # symbolic (NOTE: this is a requirement for pm_simplify_ranges to be correct)
-  ret.append(RewriteStep(sym, name="initial symbolic"))
+    # symbolic (NOTE: this is a requirement for pm_simplify_ranges to be correct)
+    ret.append(RewriteStep(sym, name="initial symbolic"))
 
-  # optimize (schedule) the AST
-  ret.append(RewriteStep(pm_simplify_ranges, name="simplify ranges"))
-  ret.append(RewriteStep(pm_postrange_opt, ctx=lambda _: opts, name="post optimize ast"))
+    # optimize (schedule) the AST
+    ret.append(RewriteStep(pm_simplify_ranges, name="simplify ranges"))
+    ret.append(RewriteStep(pm_postrange_opt, ctx=lambda _: opts, name="post optimize ast"))
 
   # ** expander (expand_rewrite) **
   ret.append(RewriteStep(sym+migrate_indexing, name="postopt symbolic"))
@@ -106,8 +107,8 @@ def _get_rewrites_for_renderer(opts:Renderer, linearizer:bool, _QUANTIZE, _DEVEC
   # return the list (with optional linearizer)
   return ret + (rewrites_for_linearizer if linearizer else [])
 
-def full_rewrite_to_sink(sink:UOp, opts:Renderer|None=None, linearizer:bool=False) -> UOp:
-  return apply_rewrites(sink, get_rewrites_for_renderer(opts if opts is not None else Renderer(), linearizer))
+def full_rewrite_to_sink(sink:UOp, opts:Renderer|None=None, optimize:bool=True, linearizer:bool=False) -> UOp:
+  return apply_rewrites(sink, get_rewrites_for_renderer(opts if opts is not None else Renderer(), optimize, linearizer))
 
 def full_rewrite(sink:UOp, opts:Renderer|None=None) -> list[UOp]:
   """
@@ -121,6 +122,6 @@ def full_rewrite(sink:UOp, opts:Renderer|None=None) -> list[UOp]:
     Linear program in UOps.
   """
 
-  lst = list(full_rewrite_to_sink(sink, opts, linearizer=True).arg.lst)
+  lst = list(full_rewrite_to_sink(sink, opts, optimize=sink.tag is None, linearizer=True).arg.lst)
   if __debug__: type_verify(lst)
   return lst
diff --git a/tinygrad/codegen/simplify.py b/tinygrad/codegen/simplify.py
index bdf6b39d1c..bc4e57e066 100644
--- a/tinygrad/codegen/simplify.py
+++ b/tinygrad/codegen/simplify.py
@@ -14,7 +14,7 @@ pm_flatten_range = PatternMatcher([
 ])
 
 def count_divmod(x:UOp): return len([u for u in x.toposort() if u.op in {Ops.IDIV, Ops.MOD}])
-def simplify_merge_adjacent(u:UOp) -> UOp|None:
+def simplify_merge_adjacent(ctx:UOp, u:UOp) -> UOp|None:
   i = 2 if u.op is Ops.STORE else 1
   while i < len(u.src)-1:
     r0, r1 = u.src[i], u.src[i+1]