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remove-unused-nonfunction-module-elements.wast
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remove-unused-nonfunction-module-elements.wast
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(module
(memory 0)
(start $start)
(type $0 (func))
(type $0-dupe (func))
(type $1 (func (param i32)))
(type $1-dupe (func (param i32)))
(type $2 (func (param i32) (result i32)))
(type $2-dupe (func (param i32) (result i32)))
(type $2-thrupe (func (param i32) (result i32)))
(export "memory" (memory $0))
(export "exported" $exported)
(export "other1" $other1)
(export "other2" $other2)
(table 1 1 funcref)
(elem (i32.const 0) $called_indirect)
(func $start (type $0)
(call $called0)
)
(func $called0 (type $0)
(call $called1)
)
(func $called1 (type $0)
(nop)
)
(func $called_indirect (type $0)
(nop)
)
(func $exported (type $0-dupe)
(call $called2)
)
(func $called2 (type $0-dupe)
(call $called2)
(call $called3)
)
(func $called3 (type $0-dupe)
(call $called4)
)
(func $called4 (type $0-dupe)
(call $called3)
)
(func $remove0 (type $0-dupe)
(call $remove1)
)
(func $remove1 (type $0-dupe)
(nop)
)
(func $remove2 (type $0-dupe)
(call $remove2)
)
(func $remove3 (type $0)
(call $remove4)
)
(func $remove4 (type $0)
(call $remove3)
)
(func $other1 (param i32) (type $1)
(call_indirect (type $0) (i32.const 0))
(call_indirect (type $0) (i32.const 0))
(call_indirect (type $0-dupe) (i32.const 0))
(call_indirect (type $0-dupe) (i32.const 0))
(call_indirect (type $1) (i32.const 0) (i32.const 0))
(call_indirect (type $1-dupe) (i32.const 0) (i32.const 0))
(drop (call_indirect (type $2) (i32.const 0) (i32.const 0)))
(drop (call_indirect (type $2-dupe) (i32.const 0) (i32.const 0)))
(drop (call_indirect (type $2-thrupe) (i32.const 0) (i32.const 0)))
)
(func $other2 (param i32) (type $1-dupe)
(unreachable)
)
)
(module ;; remove the table and memory
(import "env" "memory" (memory $0 256))
(import "env" "table" (table 0 funcref))
)
(module ;; also when not imported
(memory 256)
(table 1 funcref)
)
(module ;; but not when exported
(import "env" "memory" (memory $0 256))
(import "env" "table" (table 1 funcref))
(export "mem" (memory 0))
(export "tab" (table 0))
)
(module ;; and not when there are segments
(import "env" "memory" (memory $0 256))
(import "env" "table" (table 1 funcref))
(data (i32.const 1) "hello, world!")
(elem (i32.const 0) $waka)
(func $waka)
)
(module ;; and not when used
(type $0 (func))
(import "env" "memory" (memory $0 256))
(import "env" "table" (table 0 funcref))
(export "user" $user)
(func $user
(drop (i32.load (i32.const 0)))
(call_indirect (type $0) (i32.const 0))
)
)
(module ;; more use checks
(memory $0 (shared 23 256))
(export "user" $user)
(func $user
(i32.store (i32.const 0) (i32.const 0))
)
)
(module ;; more use checks
(memory $0 (shared 23 256))
(export "user" $user)
(func $user (result i32)
(i32.atomic.rmw.add (i32.const 0) (i32.const 0))
)
)
(module ;; more use checks
(memory $0 (shared 23 256))
(export "user" $user)
(func $user (result i32)
(i32.atomic.rmw8.cmpxchg_u (i32.const 0) (i32.const 0) (i32.const 0))
)
)
(module ;; more use checks
(memory $0 (shared 23 256))
(export "user" $user)
(func $user
(local $0 i32)
(local $1 i64)
(drop
(i32.wait
(local.get $0)
(local.get $0)
(local.get $1)
)
)
)
)
(module ;; more use checks
(memory $0 (shared 23 256))
(export "user" $user)
(func $user (result i32)
(wake (i32.const 0) (i32.const 0))
)
)
(module ;; more use checks
(memory $0 23 256)
(export "user" $user)
(func $user (result i32)
(grow_memory (i32.const 0))
)
)
(module ;; more use checks
(import "env" "memory" (memory $0 256))
(export "user" $user)
(func $user (result i32)
(grow_memory (i32.const 0))
)
)
(module ;; more use checks
(memory $0 23 256)
(export "user" $user)
(func $user (result i32)
(current_memory)
)
)
(module
(import "env" "memory" (memory $0 256))
(import "env" "table" (table 0 funcref))
(import "env" "memoryBase" (global $memoryBase i32)) ;; used in init
(import "env" "tableBase" (global $tableBase i32)) ;; used in init
(data (global.get $memoryBase) "hello, world!")
(elem (global.get $tableBase) $waka)
(func $waka) ;; used in table
)
(module ;; one is exported, and one->two->int global, whose init->imported
(import "env" "imported" (global $imported i32))
(import "env" "forgetme" (global $forgetme i32))
(import "env" "_puts" (func $_puts (param i32) (result i32)))
(import "env" "forget_puts" (func $forget_puts (param i32) (result i32)))
(global $int (mut i32) (global.get $imported))
(global $set (mut i32) (i32.const 100))
(global $forglobal.get (mut i32) (i32.const 500))
(global $exp_glob i32 (i32.const 600))
(export "one" (func $one))
(export "three" (func $three))
(export "exp_glob" (global $exp_glob))
(start $starter)
(func $one (result i32)
(call $two)
)
(func $two (result i32)
(global.get $int)
)
(func $three
(call $four)
)
(func $four
(global.set $set (i32.const 200))
(drop (call $_puts (i32.const 300)))
)
(func $forget_implemented
(nop)
)
(func $starter
(nop)
)
)
(module ;; empty start being removed
(start $starter)
(func $starter
(nop)
)
)
(module ;; non-empty start being kept
(start $starter)
(func $starter
(drop (i32.const 0))
)
)
(module ;; the function stays but the table can be removed
(type $0 (func (param f64) (result f64)))
(table 6 6 funcref)
(func $0 (; 0 ;) (type $0) (param $var$0 f64) (result f64)
(if (result f64)
(f64.eq
(f64.const 1)
(f64.const 1)
)
(f64.const 1)
(f64.const 0)
)
)
)
(module ;; the function keeps the table alive
(type $0 (func (param f64) (result f64)))
(table 6 6 funcref)
(func $0 (; 0 ;) (type $0) (param $var$0 f64) (result f64)
(if (result f64)
(f64.eq
(f64.const 1)
(f64.const 1)
)
(call_indirect (type $0) (f64.const 1) (i32.const 0))
(f64.const 0)
)
)
)
(module ;; the table is imported - we can't remove it
(type $0 (func (param f64) (result f64)))
(import "env" "table" (table 6 6 funcref))
(elem (i32.const 0) $0)
(func $0 (; 0 ;) (type $0) (param $var$0 f64) (result f64)
(if (result f64)
(f64.eq
(f64.const 1)
(f64.const 1)
)
(f64.const 1)
(f64.const 0)
)
)
)