forked from WebAssembly/binaryen
/
simplify-globals-optimizing_enable-mutable-globals.wast
148 lines (148 loc) · 3.54 KB
/
simplify-globals-optimizing_enable-mutable-globals.wast
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(module
(import "env" "global-1" (global $g1 i32))
(global $g2 (mut i32) (global.get $g1))
(func $foo
(drop (global.get $g1))
(drop (global.get $g2))
)
)
(module
(import "env" "global-1" (global $g1 i32))
(global $g2 (mut i32) (global.get $g1))
(global $g3 (mut i32) (global.get $g2))
(global $g4 (mut i32) (global.get $g3))
(func $foo
(drop (global.get $g1))
(drop (global.get $g2))
(drop (global.get $g3))
(drop (global.get $g4))
)
)
(module
(import "env" "global-1" (global $g1 (mut i32)))
(global $g2 (mut i32) (global.get $g1))
)
(module
(import "env" "global-1" (global $g1 i32))
(global $g2 (mut i32) (global.get $g1))
(func $foo
(global.set $g2 (unreachable))
)
)
(module
(import "env" "global-1" (global $g1 (mut i32)))
(global $g2 (mut i32) (global.get $g1))
(export "global-2" (global $g2))
)
(module
(global $g1 i32 (i32.const 1))
(global $g2 i32 (global.get $g1))
(global $g3 f64 (f64.const -3.4))
(global $g4 (mut f64) (f64.const -2.8))
(global $g5 i32 (i32.const 2))
(global $g6 (mut i32) (global.get $g5))
(global $g7 (mut i32) (i32.const 3))
(global $g8 i32 (global.get $g7))
(global $g9 i32 (i32.const 4))
(global $ga (mut i32) (global.get $g9))
(global $gb (mut i32) (i32.const 5))
(global $gc i32 (global.get $gb))
(func $foo
(drop (global.get $g1))
(drop (global.get $g2))
(drop (global.get $g3))
(drop (global.get $g4))
(drop (global.get $g5))
(drop (global.get $g6))
(drop (global.get $g7))
(drop (global.get $g8))
(drop (global.get $g9))
(drop (global.get $ga))
(drop (global.get $gb))
(drop (global.get $gc))
(global.set $ga (i32.const 6))
(global.set $gb (i32.const 7))
)
)
(module
(global $g1 (mut i32) (i32.const 1))
(global $g2 (mut i32) (i32.const 1))
(func $f (param $x i32) (result i32)
(global.set $g1 (i32.const 100))
(global.set $g2 (local.get $x))
(if (local.get $x) (return (i32.const 0)))
(local.set $x
(i32.add
(global.get $g1)
(global.get $g2)
)
)
(if (local.get $x) (return (i32.const 1)))
(global.set $g1 (i32.const 200))
(global.set $g2 (local.get $x))
(local.set $x
(i32.add
(global.get $g1)
(global.get $g2)
)
)
(local.get $x)
)
)
(module
(global $g1 (mut i32) (i32.const 1))
(global $g2 (mut i32) (i32.const 1))
(func $f (param $x i32) (result i32)
(global.set $g1 (i32.const 100))
(global.set $g2 (local.get $x))
(local.set $x
(i32.add
(i32.add
(global.get $g1)
(global.get $g1)
)
(global.get $g2)
)
)
(local.get $x)
)
)
(module
(global $g1 (mut i32) (i32.const 1))
(global $g2 (mut i32) (i32.const 1))
(func $no (param $x i32) (result i32)
(global.set $g1 (i32.const 100))
(drop (call $no (i32.const 200))) ;; invalidate
(global.get $g1)
)
(func $no2 (param $x i32) (result i32)
(global.set $g1 (i32.const 100))
(global.set $g1 (local.get $x)) ;; invalidate
(global.get $g1)
)
(func $yes (param $x i32) (result i32)
(global.set $g1 (i32.const 100))
(global.set $g2 (local.get $x)) ;; almost invalidate
(global.get $g1)
)
)
;; don't remove a value with a side effect
(module
(global $global$0 (mut i32) (i32.const 0))
(global $global$1 (mut i32) (i32.const 0))
(export "func_9" (func $0))
(func $0 (result f64)
(global.set $global$0
(block $label$1 (result i32)
(if
(i32.eqz
(global.get $global$1)
)
(unreachable)
)
(i32.const 2)
)
)
(f64.const 1)
)
)