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rossberg merged 3 commits into from
Apr 2, 2026
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[interpreter] Remove redundant substitution in Invoke reduction #2132

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a664a86
[interpreter] Remove redundant substitution in Invoke reduction
rossberg Apr 2, 2026
47b039a
CI
rossberg Apr 2, 2026
70a4e37
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rossberg Apr 2, 2026
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3 changes: 1 addition & 2 deletions interpreter/exec/eval.ml
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Original file line number Diff line number Diff line change
Expand Up @@ -1122,8 +1122,7 @@ let rec step (c : config) : config =
| Func.AstFunc (_, inst', func) ->
let Func (_x, ls, es) = func.it in
let m = Lib.Promise.value inst' in
let s = subst_of m in
let ts = List.map (fun {it = Local t; _} -> subst_valtype s t) ls in
let ts = List.map (fun {it = Local t; _} -> t) ls in
let lvs = List.(rev (map Option.some args) @ map default_value ts) in
let frame' = {inst = m; locals = List.map ref lvs} in
let instr' = [Label (n2, [], ([], List.map plain es)) @@ func.at] in
Expand Down
16 changes: 5 additions & 11 deletions specification/wasm-3.0/4.2-execution.types.spectec
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Expand Up @@ -8,14 +8,8 @@ def $inst_globaltype(moduleinst, globaltype) : globaltype hint(show $inst_(%,%)
def $inst_memtype(moduleinst, memtype) : memtype hint(show $inst_(%,%)) hint(macro "insttype")
def $inst_tabletype(moduleinst, tabletype) : tabletype hint(show $inst_(%,%)) hint(macro "insttype")

;; TODO(3, rossberg): make inlining moduleinst.TYPES work
def $inst_valtype(moduleinst, t) = $subst_all_valtype(t, dt*)
-- if dt* = moduleinst.TYPES
def $inst_reftype(moduleinst, rt) = $subst_all_reftype(rt, dt*)
-- if dt* = moduleinst.TYPES
def $inst_globaltype(moduleinst, gt) = $subst_all_globaltype(gt, dt*)
-- if dt* = moduleinst.TYPES
def $inst_memtype(moduleinst, mt) = $subst_all_memtype(mt, dt*)
-- if dt* = moduleinst.TYPES
def $inst_tabletype(moduleinst, tt) = $subst_all_tabletype(tt, dt*)
-- if dt* = moduleinst.TYPES
def $inst_valtype(moduleinst, t) = $subst_all_valtype(t, moduleinst.TYPES)
def $inst_reftype(moduleinst, rt) = $subst_all_reftype(rt, moduleinst.TYPES)
def $inst_globaltype(moduleinst, gt) = $subst_all_globaltype(gt, moduleinst.TYPES)
def $inst_memtype(moduleinst, mt) = $subst_all_memtype(mt, moduleinst.TYPES)
def $inst_tabletype(moduleinst, tt) = $subst_all_tabletype(tt, moduleinst.TYPES)
16 changes: 5 additions & 11 deletions specification/wasm-latest/4.2-execution.types.spectec
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Expand Up @@ -8,14 +8,8 @@ def $inst_globaltype(moduleinst, globaltype) : globaltype hint(show $inst_(%,%)
def $inst_memtype(moduleinst, memtype) : memtype hint(show $inst_(%,%)) hint(macro "insttype")
def $inst_tabletype(moduleinst, tabletype) : tabletype hint(show $inst_(%,%)) hint(macro "insttype")

;; TODO(3, rossberg): make inlining moduleinst.TYPES work
def $inst_valtype(moduleinst, t) = $subst_all_valtype(t, dt*)
-- if dt* = moduleinst.TYPES
def $inst_reftype(moduleinst, rt) = $subst_all_reftype(rt, dt*)
-- if dt* = moduleinst.TYPES
def $inst_globaltype(moduleinst, gt) = $subst_all_globaltype(gt, dt*)
-- if dt* = moduleinst.TYPES
def $inst_memtype(moduleinst, mt) = $subst_all_memtype(mt, dt*)
-- if dt* = moduleinst.TYPES
def $inst_tabletype(moduleinst, tt) = $subst_all_tabletype(tt, dt*)
-- if dt* = moduleinst.TYPES
def $inst_valtype(moduleinst, t) = $subst_all_valtype(t, moduleinst.TYPES)
def $inst_reftype(moduleinst, rt) = $subst_all_reftype(rt, moduleinst.TYPES)
def $inst_globaltype(moduleinst, gt) = $subst_all_globaltype(gt, moduleinst.TYPES)
def $inst_memtype(moduleinst, mt) = $subst_all_memtype(mt, moduleinst.TYPES)
def $inst_tabletype(moduleinst, tt) = $subst_all_tabletype(tt, moduleinst.TYPES)
Binary file modified spectec/doc/example/output/NanoWasm.pdf
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15 changes: 5 additions & 10 deletions spectec/test-frontend/TEST.md
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Original file line number Diff line number Diff line change
Expand Up @@ -5955,32 +5955,27 @@ relation Externaddr_ok: `%|-%:%`(store, externaddr, externtype)
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_valtype(moduleinst : moduleinst, valtype : valtype) : valtype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_valtype{moduleinst : moduleinst, t : valtype, `dt*` : deftype*}(moduleinst, t) = $subst_all_valtype(t, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_valtype{moduleinst : moduleinst, t : valtype}(moduleinst, t) = $subst_all_valtype(t, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_reftype(moduleinst : moduleinst, reftype : reftype) : reftype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_reftype{moduleinst : moduleinst, rt : reftype, `dt*` : deftype*}(moduleinst, rt) = $subst_all_reftype(rt, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_reftype{moduleinst : moduleinst, rt : reftype}(moduleinst, rt) = $subst_all_reftype(rt, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_globaltype(moduleinst : moduleinst, globaltype : globaltype) : globaltype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_globaltype{moduleinst : moduleinst, gt : globaltype, `dt*` : deftype*}(moduleinst, gt) = $subst_all_globaltype(gt, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_globaltype{moduleinst : moduleinst, gt : globaltype}(moduleinst, gt) = $subst_all_globaltype(gt, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_memtype(moduleinst : moduleinst, memtype : memtype) : memtype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_memtype{moduleinst : moduleinst, mt : memtype, `dt*` : deftype*}(moduleinst, mt) = $subst_all_memtype(mt, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_memtype{moduleinst : moduleinst, mt : memtype}(moduleinst, mt) = $subst_all_memtype(mt, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_tabletype(moduleinst : moduleinst, tabletype : tabletype) : tabletype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_tabletype{moduleinst : moduleinst, tt : tabletype, `dt*` : deftype*}(moduleinst, tt) = $subst_all_tabletype(tt, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_tabletype{moduleinst : moduleinst, tt : tabletype}(moduleinst, tt) = $subst_all_tabletype(tt, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.3-execution.instructions.spectec
relation Step_pure: `%~>%`(instr*, instr*)
Expand Down
10 changes: 5 additions & 5 deletions spectec/test-latex/TEST.md
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Expand Up @@ -9608,31 +9608,31 @@ $$

$$
\begin{array}[t]{@{}lcl@{}l@{}}
{{\mathrm{inst}}}_{{\mathit{moduleinst}}}(t) & = & {t}{{}[ {:=}\, {{\mathit{dt}}^\ast} ]} & \quad \mbox{if}~ {{\mathit{dt}}^\ast} = {\mathit{moduleinst}}{.}\mathsf{types} \\
{{\mathrm{inst}}}_{{\mathit{moduleinst}}}(t) & = & {t}{{}[ {:=}\, {\mathit{moduleinst}}{.}\mathsf{types} ]} \\
\end{array}
$$

$$
\begin{array}[t]{@{}lcl@{}l@{}}
{{\mathrm{inst}}}_{{\mathit{moduleinst}}}({\mathit{rt}}) & = & {{\mathit{rt}}}{{}[ {:=}\, {{\mathit{dt}}^\ast} ]} & \quad \mbox{if}~ {{\mathit{dt}}^\ast} = {\mathit{moduleinst}}{.}\mathsf{types} \\
{{\mathrm{inst}}}_{{\mathit{moduleinst}}}({\mathit{rt}}) & = & {{\mathit{rt}}}{{}[ {:=}\, {\mathit{moduleinst}}{.}\mathsf{types} ]} \\
\end{array}
$$

$$
\begin{array}[t]{@{}lcl@{}l@{}}
{{\mathrm{inst}}}_{{\mathit{moduleinst}}}({\mathit{gt}}) & = & {{\mathit{gt}}}{{}[ {:=}\, {{\mathit{dt}}^\ast} ]} & \quad \mbox{if}~ {{\mathit{dt}}^\ast} = {\mathit{moduleinst}}{.}\mathsf{types} \\
{{\mathrm{inst}}}_{{\mathit{moduleinst}}}({\mathit{gt}}) & = & {{\mathit{gt}}}{{}[ {:=}\, {\mathit{moduleinst}}{.}\mathsf{types} ]} \\
\end{array}
$$

$$
\begin{array}[t]{@{}lcl@{}l@{}}
{{\mathrm{inst}}}_{{\mathit{moduleinst}}}({\mathit{mt}}) & = & {{\mathit{mt}}}{{}[ {:=}\, {{\mathit{dt}}^\ast} ]} & \quad \mbox{if}~ {{\mathit{dt}}^\ast} = {\mathit{moduleinst}}{.}\mathsf{types} \\
{{\mathrm{inst}}}_{{\mathit{moduleinst}}}({\mathit{mt}}) & = & {{\mathit{mt}}}{{}[ {:=}\, {\mathit{moduleinst}}{.}\mathsf{types} ]} \\
\end{array}
$$

$$
\begin{array}[t]{@{}lcl@{}l@{}}
{{\mathrm{inst}}}_{{\mathit{moduleinst}}}({\mathit{tt}}) & = & {{\mathit{tt}}}{{}[ {:=}\, {{\mathit{dt}}^\ast} ]} & \quad \mbox{if}~ {{\mathit{dt}}^\ast} = {\mathit{moduleinst}}{.}\mathsf{types} \\
{{\mathrm{inst}}}_{{\mathit{moduleinst}}}({\mathit{tt}}) & = & {{\mathit{tt}}}{{}[ {:=}\, {\mathit{moduleinst}}{.}\mathsf{types} ]} \\
\end{array}
$$

Expand Down
45 changes: 15 additions & 30 deletions spectec/test-middlend/TEST.md
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Expand Up @@ -5945,32 +5945,27 @@ relation Externaddr_ok: `%|-%:%`(store, externaddr, externtype)
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_valtype(moduleinst : moduleinst, valtype : valtype) : valtype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_valtype{moduleinst : moduleinst, t : valtype, `dt*` : deftype*}(moduleinst, t) = $subst_all_valtype(t, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_valtype{moduleinst : moduleinst, t : valtype}(moduleinst, t) = $subst_all_valtype(t, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_reftype(moduleinst : moduleinst, reftype : reftype) : reftype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_reftype{moduleinst : moduleinst, rt : reftype, `dt*` : deftype*}(moduleinst, rt) = $subst_all_reftype(rt, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_reftype{moduleinst : moduleinst, rt : reftype}(moduleinst, rt) = $subst_all_reftype(rt, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_globaltype(moduleinst : moduleinst, globaltype : globaltype) : globaltype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_globaltype{moduleinst : moduleinst, gt : globaltype, `dt*` : deftype*}(moduleinst, gt) = $subst_all_globaltype(gt, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_globaltype{moduleinst : moduleinst, gt : globaltype}(moduleinst, gt) = $subst_all_globaltype(gt, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_memtype(moduleinst : moduleinst, memtype : memtype) : memtype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_memtype{moduleinst : moduleinst, mt : memtype, `dt*` : deftype*}(moduleinst, mt) = $subst_all_memtype(mt, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_memtype{moduleinst : moduleinst, mt : memtype}(moduleinst, mt) = $subst_all_memtype(mt, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_tabletype(moduleinst : moduleinst, tabletype : tabletype) : tabletype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_tabletype{moduleinst : moduleinst, tt : tabletype, `dt*` : deftype*}(moduleinst, tt) = $subst_all_tabletype(tt, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_tabletype{moduleinst : moduleinst, tt : tabletype}(moduleinst, tt) = $subst_all_tabletype(tt, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.3-execution.instructions.spectec
relation Step_pure: `%~>%`(instr*, instr*)
Expand Down Expand Up @@ -17371,32 +17366,27 @@ relation Externaddr_ok: `%|-%:%`(store, externaddr, externtype)
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_valtype(moduleinst : moduleinst, valtype : valtype) : valtype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_valtype{moduleinst : moduleinst, t : valtype, `dt*` : deftype*}(moduleinst, t) = $subst_all_valtype(t, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_valtype{moduleinst : moduleinst, t : valtype}(moduleinst, t) = $subst_all_valtype(t, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_reftype(moduleinst : moduleinst, reftype : reftype) : reftype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_reftype{moduleinst : moduleinst, rt : reftype, `dt*` : deftype*}(moduleinst, rt) = $subst_all_reftype(rt, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_reftype{moduleinst : moduleinst, rt : reftype}(moduleinst, rt) = $subst_all_reftype(rt, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_globaltype(moduleinst : moduleinst, globaltype : globaltype) : globaltype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_globaltype{moduleinst : moduleinst, gt : globaltype, `dt*` : deftype*}(moduleinst, gt) = $subst_all_globaltype(gt, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_globaltype{moduleinst : moduleinst, gt : globaltype}(moduleinst, gt) = $subst_all_globaltype(gt, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_memtype(moduleinst : moduleinst, memtype : memtype) : memtype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_memtype{moduleinst : moduleinst, mt : memtype, `dt*` : deftype*}(moduleinst, mt) = $subst_all_memtype(mt, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_memtype{moduleinst : moduleinst, mt : memtype}(moduleinst, mt) = $subst_all_memtype(mt, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_tabletype(moduleinst : moduleinst, tabletype : tabletype) : tabletype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_tabletype{moduleinst : moduleinst, tt : tabletype, `dt*` : deftype*}(moduleinst, tt) = $subst_all_tabletype(tt, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_tabletype{moduleinst : moduleinst, tt : tabletype}(moduleinst, tt) = $subst_all_tabletype(tt, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.3-execution.instructions.spectec
relation Step_pure: `%~>%`(instr*, instr*)
Expand Down Expand Up @@ -28930,32 +28920,27 @@ relation Externaddr_ok: `%|-%:%`(store, externaddr, externtype)
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_valtype(moduleinst : moduleinst, valtype : valtype) : valtype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_valtype{moduleinst : moduleinst, t : valtype, `dt*` : deftype*}(moduleinst, t) = $subst_all_valtype(t, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_valtype{moduleinst : moduleinst, t : valtype}(moduleinst, t) = $subst_all_valtype(t, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_reftype(moduleinst : moduleinst, reftype : reftype) : reftype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_reftype{moduleinst : moduleinst, rt : reftype, `dt*` : deftype*}(moduleinst, rt) = $subst_all_reftype(rt, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_reftype{moduleinst : moduleinst, rt : reftype}(moduleinst, rt) = $subst_all_reftype(rt, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_globaltype(moduleinst : moduleinst, globaltype : globaltype) : globaltype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_globaltype{moduleinst : moduleinst, gt : globaltype, `dt*` : deftype*}(moduleinst, gt) = $subst_all_globaltype(gt, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_globaltype{moduleinst : moduleinst, gt : globaltype}(moduleinst, gt) = $subst_all_globaltype(gt, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_memtype(moduleinst : moduleinst, memtype : memtype) : memtype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_memtype{moduleinst : moduleinst, mt : memtype, `dt*` : deftype*}(moduleinst, mt) = $subst_all_memtype(mt, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_memtype{moduleinst : moduleinst, mt : memtype}(moduleinst, mt) = $subst_all_memtype(mt, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_tabletype(moduleinst : moduleinst, tabletype : tabletype) : tabletype
;; ../../../../specification/wasm-latest/4.2-execution.types.spectec
def $inst_tabletype{moduleinst : moduleinst, tt : tabletype, `dt*` : deftype*}(moduleinst, tt) = $subst_all_tabletype(tt, (dt : deftype <: typeuse)*{dt <- `dt*`})
-- if (dt*{dt <- `dt*`} = moduleinst.TYPES_moduleinst)
def $inst_tabletype{moduleinst : moduleinst, tt : tabletype}(moduleinst, tt) = $subst_all_tabletype(tt, (moduleinst.TYPES_moduleinst : deftype* <: typeuse*))

;; ../../../../specification/wasm-latest/4.3-execution.instructions.spectec
relation Step_pure: `%~>%`(instr*, instr*)
Expand Down
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