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Handle v128 in validation algorithm #1399

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Nov 23, 2021
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Handle v128 in validation algorithm #1399

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7 changes: 5 additions & 2 deletions document/core/appendix/algorithm.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -28,7 +28,10 @@ Types are representable as an enumeration.
type val_type = I32 | I64 | F32 | F64 | V128 | Funcref | Externref

func is_num(t : val_type | Unknown) : bool =
return t = I32 || t = I64 || t = F32 || t = F64 || t = V128 || t = Unknown
return t = I32 || t = I64 || t = F32 || t = F64 || t = Unknown

func is_vec(t : val_type | Unknown) : bool =
return t = V128 || t = Unknown

func is_ref(t : val_type | Unknown) : bool =
return t = Funcref || t = Externref || t = Unknown
Expand Down Expand Up @@ -172,7 +175,7 @@ Other instructions are checked in a similar manner.
pop_val(I32)
let t1 = pop_val()
let t2 = pop_val()
error_if(not (is_num(t1) && is_num(t2)))
error_if(not ((is_num(t1) && is_num(t2)) || (is_vec(t1) && is_vec(t2))))
error_if(t1 =/= t2 && t1 =/= Unknown && t2 =/= Unknown)
push_val(if (t1 = Unknown) t2 else t1)

Expand Down