Missing lambda in torch._check (pytorch#164225)

xadupre · pytorchmergebot · commit 9e631392dc75 · 2025-09-30T20:32:38.000Z
Pull Request resolved: pytorch#164225 Approved by: https://github.com/Skylion007
diff --git a/torch/_refs/__init__.py b/torch/_refs/__init__.py
@@ -476,7 +476,7 @@ def should_expand(a: ShapeType, b: ShapeType) -> bool:
             # u0==u1 assume the same, no broadcasting!
             torch._check(
                 x == y,
-                "sizes assumed to be the same due to unbacked broadcasting semantics",
+                lambda: "sizes assumed to be the same due to unbacked broadcasting semantics",
             )
 
         return False

Original file line number	Diff line number	Diff line change
`@@ -476,7 +476,7 @@ def should_expand(a: ShapeType, b: ShapeType) -> bool:`
`476`	`476`	`# u0==u1 assume the same, no broadcasting!`
`477`	`477`	`torch._check(`
`478`	`478`	`x == y,`
`479`		`- "sizes assumed to be the same due to unbacked broadcasting semantics",`
	`479`	`+ lambda: "sizes assumed to be the same due to unbacked broadcasting semantics",`
`480`	`480`	`)`
`481`	`481`
`482`	`482`	`return False`