From b1c73c47ae322b211e32389aa0e1733fcfeece1a Mon Sep 17 00:00:00 2001
From: Hubert de La Jonquiere <hubert.delajonquiere@sonos.com>
Date: Wed, 11 Dec 2024 17:31:34 +0100
Subject: [PATCH] Range on TDIM output i64 instead of TDIM

---
 core/src/ops/array/range.rs | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/core/src/ops/array/range.rs b/core/src/ops/array/range.rs
index 5d9cae5327..7d33b7ad80 100644
--- a/core/src/ops/array/range.rs
+++ b/core/src/ops/array/range.rs
@@ -59,14 +59,14 @@ impl Range {
         values: &SymbolValues,
     ) -> TractResult<Tensor> {
         if start.datum_type() == TDim::datum_type() {
+            let start = start.to_scalar::<TDim>()?.eval(values).to_i64()?;
+            let step = step.to_scalar::<TDim>()?.eval(values).to_i64()?;
             let len = {
-                let start = start.to_scalar::<TDim>()?.eval(values).to_i64()?;
                 let end = end.to_scalar::<TDim>()?.eval(values).to_i64()?;
-                let step = step.to_scalar::<TDim>()?.eval(values).to_i64()?;
                 #[allow(clippy::cast_abs_to_unsigned)]
                 ((end - start).abs() as usize).divceil(step.abs() as usize)
             };
-            Self::make_t::<TDim>(start, step, len)
+            Self::make_t::<i64>(&tensor0(start), &tensor0(step), len)
         } else {
             let len = dispatch_numbers!(Self::len_for_numbers(start.datum_type())(
                 self, start, end, step
@@ -116,22 +116,23 @@ impl TypedOp for Range {
         ensure!(end.shape.volume().is_one());
         ensure!(step.shape.volume().is_one());
         if let (Some(start), Some(end), Some(step)) = (&start.konst, &end.konst, &step.konst) {
-            let len = if start.datum_type() == TDim::datum_type() {
+            if start.datum_type() == TDim::datum_type() {
                 let start = start.to_scalar::<TDim>()?;
                 let end = end.to_scalar::<TDim>()?;
                 let step = step.cast_to_scalar::<i64>()?;
-                if step < 0 {
+                let len = if step < 0 {
                     (start.clone() - end).divceil(-step as usize)
                 } else {
                     (end.clone() - start).divceil(step as usize)
-                }
+                };
+                Ok(tvec!(DatumType::I64.fact([len])))
             } else {
-                dispatch_numbers!(Self::len_for_numbers(start.datum_type())(
+                let len = dispatch_numbers!(Self::len_for_numbers(start.datum_type())(
                     self, start, end, step
                 ))?
-                .to_dim()
-            };
-            Ok(tvec!(start.datum_type().fact([len])))
+                .to_dim();
+                Ok(tvec!(start.datum_type().fact([len])))
+            }
         } else {
             Ok(tvec!(start.datum_type.fact(&[self.len.clone()])))
         }