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labels.wast
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labels.wast
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(module
(func (export "block") (result i32)
(block $exit (result i32)
(br $exit (i32.const 1))
(i32.const 0)
)
)
(func (export "loop1") (result i32)
(local $i i32)
(local.set $i (i32.const 0))
(block $exit (result i32)
(loop $cont (result i32)
(local.set $i (i32.add (local.get $i) (i32.const 1)))
(if (i32.eq (local.get $i) (i32.const 5))
(then (br $exit (local.get $i)))
)
(br $cont)
)
)
)
(func (export "loop2") (result i32)
(local $i i32)
(local.set $i (i32.const 0))
(block $exit (result i32)
(loop $cont (result i32)
(local.set $i (i32.add (local.get $i) (i32.const 1)))
(if (i32.eq (local.get $i) (i32.const 5))
(then (br $cont))
)
(if (i32.eq (local.get $i) (i32.const 8))
(then (br $exit (local.get $i)))
)
(local.set $i (i32.add (local.get $i) (i32.const 1)))
(br $cont)
)
)
)
(func (export "loop3") (result i32)
(local $i i32)
(local.set $i (i32.const 0))
(block $exit (result i32)
(loop $cont (result i32)
(local.set $i (i32.add (local.get $i) (i32.const 1)))
(if (i32.eq (local.get $i) (i32.const 5))
(then (br $exit (local.get $i)))
)
(local.get $i)
)
)
)
(func (export "loop4") (param $max i32) (result i32)
(local $i i32)
(local.set $i (i32.const 1))
(block $exit (result i32)
(loop $cont (result i32)
(local.set $i (i32.add (local.get $i) (local.get $i)))
(if (i32.gt_u (local.get $i) (local.get $max))
(then (br $exit (local.get $i)))
)
(br $cont)
)
)
)
(func (export "loop5") (result i32)
(i32.add
(loop $l (result i32) (i32.const 1))
(i32.const 1)
)
)
(func (export "loop6") (result i32)
(loop (result i32)
(br_if 0 (i32.const 0))
(i32.const 3)
)
)
(func (export "if") (result i32)
(local $i i32)
(local.set $i (i32.const 0))
(block
(if $l
(i32.const 1)
(then (br $l) (local.set $i (i32.const 666)))
)
(local.set $i (i32.add (local.get $i) (i32.const 1)))
(if $l
(i32.const 1)
(then (br $l) (local.set $i (i32.const 666)))
(else (local.set $i (i32.const 888)))
)
(local.set $i (i32.add (local.get $i) (i32.const 1)))
(if $l
(i32.const 1)
(then (br $l) (local.set $i (i32.const 666)))
(else (local.set $i (i32.const 888)))
)
(local.set $i (i32.add (local.get $i) (i32.const 1)))
(if $l
(i32.const 0)
(then (local.set $i (i32.const 888)))
(else (br $l) (local.set $i (i32.const 666)))
)
(local.set $i (i32.add (local.get $i) (i32.const 1)))
(if $l
(i32.const 0)
(then (local.set $i (i32.const 888)))
(else (br $l) (local.set $i (i32.const 666)))
)
(local.set $i (i32.add (local.get $i) (i32.const 1)))
)
(local.get $i)
)
(func (export "if2") (result i32)
(local $i i32)
(local.set $i (i32.const 0))
(block
(if
(i32.const 1)
(then (br 0) (local.set $i (i32.const 666)))
)
(local.set $i (i32.add (local.get $i) (i32.const 1)))
(if
(i32.const 1)
(then (br 0) (local.set $i (i32.const 666)))
(else (local.set $i (i32.const 888)))
)
(local.set $i (i32.add (local.get $i) (i32.const 1)))
(if
(i32.const 1)
(then (br 0) (local.set $i (i32.const 666)))
(else (local.set $i (i32.const 888)))
)
(local.set $i (i32.add (local.get $i) (i32.const 1)))
(if
(i32.const 0)
(then (local.set $i (i32.const 888)))
(else (br 0) (local.set $i (i32.const 666)))
)
(local.set $i (i32.add (local.get $i) (i32.const 1)))
(if
(i32.const 0)
(then (local.set $i (i32.const 888)))
(else (br 0) (local.set $i (i32.const 666)))
)
(local.set $i (i32.add (local.get $i) (i32.const 1)))
)
(local.get $i)
)
(func (export "switch") (param i32) (result i32)
(block $ret (result i32)
(i32.mul (i32.const 10)
(block $exit (result i32)
(block $0
(block $default
(block $3
(block $2
(block $1
(br_table $0 $1 $2 $3 $default (local.get 0))
) ;; 1
) ;; 2
(br $exit (i32.const 2))
) ;; 3
(br $ret (i32.const 3))
) ;; default
) ;; 0
(i32.const 5)
)
)
)
)
(func (export "return") (param i32) (result i32)
(block $default
(block $1
(block $0
(br_table $0 $1 (local.get 0))
(br $default)
) ;; 0
(return (i32.const 0))
) ;; 1
) ;; default
(i32.const 2)
)
(func (export "br_if0") (result i32)
(local $i i32)
(local.set $i (i32.const 0))
(block $outer (result i32)
(block $inner
(br_if $inner (i32.const 0))
(local.set $i (i32.or (local.get $i) (i32.const 0x1)))
(br_if $inner (i32.const 1))
(local.set $i (i32.or (local.get $i) (i32.const 0x2)))
)
(drop (br_if $outer
(block (result i32)
(local.set $i (i32.or (local.get $i) (i32.const 0x4)))
(local.get $i)
)
(i32.const 0)
))
(local.set $i (i32.or (local.get $i) (i32.const 0x8)))
(drop (br_if $outer
(block (result i32)
(local.set $i (i32.or (local.get $i) (i32.const 0x10)))
(local.get $i)
)
(i32.const 1)
))
(local.set $i (i32.or (local.get $i) (i32.const 0x20))) (local.get $i)
)
)
(func (export "br_if1") (result i32)
(block $l0 (result i32)
(drop
(br_if $l0
(block $l1 (result i32) (br $l1 (i32.const 1)))
(i32.const 1)
)
)
(i32.const 0)
)
)
(func (export "br_if2") (result i32)
(block $l0 (result i32)
(if (i32.const 1)
(then
(drop
(br_if $l0
(block $l1 (result i32) (br $l1 (i32.const 1)))
(i32.const 1)
)
)
)
)
(i32.const 0)
)
)
(func (export "br_if3") (result i32)
(local $i1 i32)
(drop
(i32.add
(block $l0 (result i32)
(drop (br_if $l0
(block (result i32) (local.set $i1 (i32.const 1)) (local.get $i1))
(block (result i32) (local.set $i1 (i32.const 2)) (local.get $i1))
))
(i32.const 0)
)
(i32.const 0)
)
)
(local.get $i1)
)
(func (export "br") (result i32)
(block $l0 (result i32)
(if (i32.const 1)
(then (br $l0 (block $l1 (result i32) (br $l1 (i32.const 1)))))
(else (block (drop (block $l1 (result i32) (br $l1 (i32.const 1))))))
)
(i32.const 1)
)
)
(func (export "shadowing") (result i32)
(block $l1 (result i32) (i32.xor (br $l1 (i32.const 1)) (i32.const 2)))
)
(func (export "redefinition") (result i32)
(block $l1 (result i32)
(i32.add
(block $l1 (result i32) (i32.const 2))
(block $l1 (result i32) (br $l1 (i32.const 3)))
)
)
)
)
(assert_return (invoke "block") (i32.const 1))
(assert_return (invoke "loop1") (i32.const 5))
(assert_return (invoke "loop2") (i32.const 8))
(assert_return (invoke "loop3") (i32.const 1))
(assert_return (invoke "loop4" (i32.const 8)) (i32.const 16))
(assert_return (invoke "loop5") (i32.const 2))
(assert_return (invoke "loop6") (i32.const 3))
(assert_return (invoke "if") (i32.const 5))
(assert_return (invoke "if2") (i32.const 5))
(assert_return (invoke "switch" (i32.const 0)) (i32.const 50))
(assert_return (invoke "switch" (i32.const 1)) (i32.const 20))
(assert_return (invoke "switch" (i32.const 2)) (i32.const 20))
(assert_return (invoke "switch" (i32.const 3)) (i32.const 3))
(assert_return (invoke "switch" (i32.const 4)) (i32.const 50))
(assert_return (invoke "switch" (i32.const 5)) (i32.const 50))
(assert_return (invoke "return" (i32.const 0)) (i32.const 0))
(assert_return (invoke "return" (i32.const 1)) (i32.const 2))
(assert_return (invoke "return" (i32.const 2)) (i32.const 2))
(assert_return (invoke "br_if0") (i32.const 0x1d))
(assert_return (invoke "br_if1") (i32.const 1))
(assert_return (invoke "br_if2") (i32.const 1))
(assert_return (invoke "br_if3") (i32.const 2))
(assert_return (invoke "br") (i32.const 1))
(assert_return (invoke "shadowing") (i32.const 1))
(assert_return (invoke "redefinition") (i32.const 5))
(assert_invalid
(module (func (block $l (f32.neg (br_if $l (i32.const 1))) (nop))))
"type mismatch"
)
(assert_invalid
(module (func (block $l (br_if $l (f32.const 0) (i32.const 1)))))
"type mismatch"
)
(assert_invalid
(module (func (block $l (br_if $l (f32.const 0) (i32.const 1)))))
"type mismatch"
)