diff --git a/tinygrad/codegen/devectorizer.py b/tinygrad/codegen/devectorizer.py
index 57d59aba5f..b5121f7636 100644
--- a/tinygrad/codegen/devectorizer.py
+++ b/tinygrad/codegen/devectorizer.py
@@ -284,9 +284,11 @@ def reduce_to_acc(ctx:ReduceContext, red:UOp):
   assert all(x.dtype == red.dtype for x in lst), f"horizontal reduction mismatch {lst[0].dtype} != {red.dtype}"
   # if we have a range
   if len(reduce_range) != 0:
-    acc = UOp(Ops.DEFINE_REG, red.dtype.ptr(size=1, addrspace=AddrSpace.REG),
-              (red.const_like(identity_element(red.arg, red.dtype.scalar())),) + tuple(reduce_range), (ctx.acc_num,)).index(UOp.const(dtypes.int, 0))
-    lst = [acc.load()] + lst  # put acc as the first element
+    input_ranges = tuple([x for x in inp.toposort() if x.op is Ops.RANGE and x not in reduce_range])
+    identity = red.const_like(identity_element(red.arg, red.dtype.scalar()))
+    acc = UOp(Ops.DEFINE_REG, red.dtype.ptr(size=1, addrspace=AddrSpace.REG), src=(identity,), arg=(ctx.acc_num,))
+    acc = acc.index(UOp.const(dtypes.int, 0)).store(identity, UOp(Ops.BEFORE, src=input_ranges))
+    lst = [acc.load(*reduce_range)] + lst  # put acc as the first element
     ctx.acc_num += 1
   ret = functools.reduce(lambda x,y: x.alu(red.arg, y), lst)
   return acc.store(ret, *reduce_range).load() if len(reduce_range) != 0 else ret
diff --git a/tinygrad/renderer/cstyle.py b/tinygrad/renderer/cstyle.py
index 5027faeac5..d9dc9b1654 100644
--- a/tinygrad/renderer/cstyle.py
+++ b/tinygrad/renderer/cstyle.py
@@ -135,6 +135,7 @@ class CStyleLanguage(Renderer):
     c: defaultdict[str, int] = defaultdict(int)
     name = "test"
     for u in uops:
+      if u.op is Ops.BEFORE: continue
       if u.op is Ops.SINK:
         if u.arg is not None: name = u.arg.function_name
         continue
diff --git a/tinygrad/uop/__init__.py b/tinygrad/uop/__init__.py
index 6cbae7cec0..6df14cb93f 100644
--- a/tinygrad/uop/__init__.py
+++ b/tinygrad/uop/__init__.py
@@ -9,7 +9,7 @@ class FastEnum(IntEnum):
 # the order of these Ops controls the order of the toposort
 class Ops(FastEnum):
   # uops that aren't rendered
-  NOOP = auto(); SINK = auto(); UNIQUE = auto(); DEVICE = auto(); KERNEL = auto()  # noqa: E702
+  NOOP = auto(); SINK = auto(); UNIQUE = auto(); DEVICE = auto(); KERNEL = auto(); BEFORE = auto()  # noqa: E702
 
   # buffer ops
   COPY = auto(); BUFFER = auto(); BUFFER_VIEW = auto(); MSELECT = auto(); MSTACK = auto() # noqa: E702
diff --git a/tinygrad/viz/serve.py b/tinygrad/viz/serve.py
index 51a542a292..4b2bf370fb 100755
--- a/tinygrad/viz/serve.py
+++ b/tinygrad/viz/serve.py
@@ -15,7 +15,7 @@ uops_colors = {Ops.LOAD: "#ffc0c0", Ops.STORE: "#87CEEB", Ops.CONST: "#e0e0e0",
                Ops.INDEX: "#e8ffa0", Ops.WMMA: "#efefc0", Ops.VIEW: "#C8F9D4", Ops.MULTI: "#f6ccff", Ops.KERNEL: "#3e7f55",
                **{x:"#D8F9E4" for x in GroupOp.Movement}, **{x:"#ffffc0" for x in GroupOp.ALU}, Ops.THREEFRY:"#ffff80", Ops.BUFFER_VIEW: "#E5EAFF",
                Ops.BLOCK: "#C4A484", Ops.BLOCKEND: "#C4A4A4", Ops.BUFFER: "#B0BDFF", Ops.COPY: "#a040a0", Ops.FUSE: "#FFa500",
-               Ops.ALLREDUCE: "#ff40a0", Ops.MSELECT: "#d040a0", Ops.MSTACK: "#d040a0", Ops.CONTIGUOUS: "#FFC14D"}
+               Ops.ALLREDUCE: "#ff40a0", Ops.MSELECT: "#d040a0", Ops.MSTACK: "#d040a0", Ops.CONTIGUOUS: "#FFC14D", Ops.BEFORE: "#f8a0e0"}
 
 # VIZ API