mirror of
https://github.com/fluencelabs/wasmer
synced 2024-12-13 14:25:32 +00:00
74875ed554
* Move wasmer-runtime to wasmer-runtime-core * Add the runtime library * Fix issue with macros using wasmer_runtime, fmt * Make default compiler dependency optional * Add instantiate and validate functions
90 lines
2.5 KiB
Plaintext
90 lines
2.5 KiB
Plaintext
(module
|
|
;; Recursive factorial
|
|
(func (export "fac-rec") (param i64) (result i64)
|
|
(if (result i64) (i64.eq (get_local 0) (i64.const 0))
|
|
(then (i64.const 1))
|
|
(else
|
|
(i64.mul (get_local 0) (call 0 (i64.sub (get_local 0) (i64.const 1))))
|
|
)
|
|
)
|
|
)
|
|
|
|
;; Recursive factorial named
|
|
(func $fac-rec-named (export "fac-rec-named") (param $n i64) (result i64)
|
|
(if (result i64) (i64.eq (get_local $n) (i64.const 0))
|
|
(then (i64.const 1))
|
|
(else
|
|
(i64.mul
|
|
(get_local $n)
|
|
(call $fac-rec-named (i64.sub (get_local $n) (i64.const 1)))
|
|
)
|
|
)
|
|
)
|
|
)
|
|
|
|
;; Iterative factorial
|
|
(func (export "fac-iter") (param i64) (result i64)
|
|
(local i64 i64)
|
|
(set_local 1 (get_local 0))
|
|
(set_local 2 (i64.const 1))
|
|
(block
|
|
(loop
|
|
(if
|
|
(i64.eq (get_local 1) (i64.const 0))
|
|
(then (br 2))
|
|
(else
|
|
(set_local 2 (i64.mul (get_local 1) (get_local 2)))
|
|
(set_local 1 (i64.sub (get_local 1) (i64.const 1)))
|
|
)
|
|
)
|
|
(br 0)
|
|
)
|
|
)
|
|
(get_local 2)
|
|
)
|
|
|
|
;; Iterative factorial named
|
|
(func (export "fac-iter-named") (param $n i64) (result i64)
|
|
(local $i i64)
|
|
(local $res i64)
|
|
(set_local $i (get_local $n))
|
|
(set_local $res (i64.const 1))
|
|
(block $done
|
|
(loop $loop
|
|
(if
|
|
(i64.eq (get_local $i) (i64.const 0))
|
|
(then (br $done))
|
|
(else
|
|
(set_local $res (i64.mul (get_local $i) (get_local $res)))
|
|
(set_local $i (i64.sub (get_local $i) (i64.const 1)))
|
|
)
|
|
)
|
|
(br $loop)
|
|
)
|
|
)
|
|
(get_local $res)
|
|
)
|
|
|
|
;; Optimized factorial.
|
|
(func (export "fac-opt") (param i64) (result i64)
|
|
(local i64)
|
|
(set_local 1 (i64.const 1))
|
|
(block
|
|
(br_if 0 (i64.lt_s (get_local 0) (i64.const 2)))
|
|
(loop
|
|
(set_local 1 (i64.mul (get_local 1) (get_local 0)))
|
|
(set_local 0 (i64.add (get_local 0) (i64.const -1)))
|
|
(br_if 0 (i64.gt_s (get_local 0) (i64.const 1)))
|
|
)
|
|
)
|
|
(get_local 1)
|
|
)
|
|
)
|
|
|
|
(assert_return (invoke "fac-rec" (i64.const 25)) (i64.const 7034535277573963776))
|
|
(assert_return (invoke "fac-iter" (i64.const 25)) (i64.const 7034535277573963776))
|
|
(assert_return (invoke "fac-rec-named" (i64.const 25)) (i64.const 7034535277573963776))
|
|
(assert_return (invoke "fac-iter-named" (i64.const 25)) (i64.const 7034535277573963776))
|
|
(assert_return (invoke "fac-opt" (i64.const 25)) (i64.const 7034535277573963776))
|
|
(assert_exhaustion (invoke "fac-rec" (i64.const 1073741824)) "call stack exhausted")
|