Path: blob/main/cranelift/codegen/src/opts/remat.isle
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;; Rematerialize ALU-op-with-imm and iconsts in each block where they're
;; used. This is neutral (add-with-imm) or positive (iconst) for
;; register pressure, and these ops are very cheap.
(rule (simplify x @ (iadd _ (iconst _ _) _))
(remat x))
(rule (simplify x @ (iadd _ _ (iconst _ _)))
(remat x))
(rule (simplify x @ (isub _ (iconst _ _) _))
(remat x))
(rule (simplify x @ (isub _ _ (iconst _ _)))
(remat x))
(rule (simplify x @ (band _ (iconst _ _) _))
(remat x))
(rule (simplify x @ (band _ _ (iconst _ _)))
(remat x))
(rule (simplify x @ (bor _ (iconst _ _) _))
(remat x))
(rule (simplify x @ (bor _ _ (iconst _ _)))
(remat x))
(rule (simplify x @ (bxor _ (iconst _ _) _))
(remat x))
(rule (simplify x @ (bxor _ _ (iconst _ _)))
(remat x))
(rule (simplify x @ (bnot _ _))
(remat x))
(rule (simplify x @ (iconst _ _))
(remat x))
(rule (simplify x @ (f32const _ _))
(remat x))
(rule (simplify x @ (f64const _ _))
(remat x))