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|
(module
(type $ii (param i32) (result i32))
(memory (shared 1 1))
(table 0 funcref)
(global $g (mut f32) (f32.const 0))
(event $e (attr 0) (param i32))
(func $foo (param i32) (result i32) (i32.const 0))
(func $test_function_block
;; block, which has unreachable type, can be omitted here because it is the
;; only expression within a function. We emit an extra unreachable at the
;; end.
(block
(unreachable)
(nop)
)
)
(func $test
;; block has unreachable type. We emit an unreachable at the end of the
;; block and also outside the block too.
(block
(i32.eqz (unreachable))
)
;; If an if's condition is unreachable, don't emit the if and emit an
;; unreachable instead.
(if
(unreachable)
(nop)
(nop)
)
;; If an if is unreachable, i.e., the both sides are unreachable, we emit
;; an extra unreachable after the if.
(if
(i32.const 1)
(unreachable)
(unreachable)
)
;; If a try is unreachable, i.e., both the 'try' and 'catch' bodies are
;; unreachable, we emit an extra unreachable after the try.
(try
(do
(unreachable)
)
(catch
(unreachable)
)
)
;; If a br_if/br_on_exn's type is unreachable, emit an extra unreachable
;; after it
(block
(br_if 0 (unreachable))
)
(drop
(block (result i32)
(br_on_exn 0 $e (unreachable))
)
)
;; If a br_table is not reachable, emit an unreachable instead
(block $l
(block $default
(br_table $l $default
(unreachable)
)
)
)
;; For all tests below, when a value-returning expression is unreachable,
;; emit an unreachable instead of the operation, to prevent it from being
;; consumed by the next operation.
;;
;; Here global.set is used to consume the value. If an unreachable is not
;; emitted, the instruction itself will be consumed by global.set and will
;; result in a type validation failure, because it expects a f32 but gets an
;; i32. The reason we use global.set is the instruction does not return a
;; value, so it will be emitted even if its argument is unreachable.
;; call / call_indirect
(global.set $g
(call $foo (unreachable))
)
(global.set $g
(call_indirect (type $ii) (unreachable))
)
;; unary
(global.set $g
(i32.eqz (unreachable))
)
;; binary
(global.set $g
(i32.add
(unreachable)
(i32.const 0)
)
)
;; select
(global.set $g
(select
(unreachable)
(i32.const 0)
(i32.const 0)
)
)
;; load
(global.set $g
(i32.load (unreachable))
)
(global.set $g
(i32.atomic.load (unreachable))
)
;; atomic.rmw
(global.set $g
(i32.atomic.rmw.add
(unreachable)
(i32.const 0)
)
)
;; atomic.cmpxchg
(global.set $g
(i32.atomic.rmw.cmpxchg
(unreachable)
(i32.const 0)
(i32.const 0)
)
)
;; atomic.wait
(global.set $g
(i32.atomic.wait
(unreachable)
(i32.const 0)
(i64.const 0)
)
)
;; atomic.notify
(global.set $g
(atomic.notify
(unreachable)
(i32.const 0)
)
)
;; SIMD extract
(global.set $g
(i32x4.extract_lane 0
(unreachable)
)
)
;; SIMD replace
(global.set $g
(i32x4.replace_lane 0
(unreachable)
(i32.const 0)
)
)
;; SIMD shuffle
(global.set $g
(v8x16.shuffle 0 17 2 19 4 21 6 23 8 25 10 27 12 29 14 31
(unreachable)
(unreachable)
)
)
;; SIMD bitselect
(global.set $g
(v128.bitselect
(unreachable)
(unreachable)
(unreachable)
)
)
;; SIMD shift
(global.set $g
(i32x4.shl
(unreachable)
(i32.const 0)
)
)
)
)
|
