fix typoes in asyncify stubs

Author: niaow

builder/build.go

@@ -626,7 +626,7 @@ func Build(pkgName, outpath string, config *compileopts.Config, action func(Buil
 			// Run wasm-opt if necessary.
 			if config.Scheduler() == "asyncify" {
 				var optLevel, shrinkLevel int
-				/*switch config.Options.Opt {
+				switch config.Options.Opt {
 				case "none", "0":
 				case "1":
 					optLevel = 1
@@ -640,7 +640,7 @@ func Build(pkgName, outpath string, config *compileopts.Config, action func(Buil
 					shrinkLevel = 2
 				default:
 					return fmt.Errorf("unknown opt level: %q", config.Options.Opt)
-				}*/
+				}
 				cmd := exec.Command("wasm-opt", "--asyncify",
 					"--optimize-level", strconv.Itoa(optLevel),
 					"--shrink-level", strconv.Itoa(shrinkLevel),

src/internal/task/task_asyncify.go

@@ -77,9 +77,7 @@ func Current() *Task {
 // Pause suspends the current task and returns to the scheduler.
 // This function may only be called when running on a goroutine stack, not when running on the system stack.
 func Pause() {
-	println("pausing", currentTask)
 	currentTask.state.unwind()
-	println("unpaused", currentTask)
 }
 
 //export tinygo_unwind
@@ -91,7 +89,6 @@ func (t *Task) Resume() {
 	if currentTask != nil {
 		runtimePanic("resume inside goroutine")
 	}
-	println("resume", t)
 	currentTask = t
 	if !t.state.launched {
 		t.state.launch()
@@ -100,7 +97,6 @@ func (t *Task) Resume() {
 		t.state.rewind()
 	}
 	currentTask = nil
-	println("rewound", t, t.state.asyncifysp, t.state.csp)
 	if t.state.asyncifysp > t.state.csp {
 		runtimePanic("stack overflow")
 	}

src/internal/task/task_asyncify_wasm.S

@@ -4,7 +4,6 @@
 .type    tinygo_unwind,@function
 tinygo_unwind: // func (state *stackState) unwind()
     .functype tinygo_unwind (i32) -> ()
-    .local i32
     // Check if we are rewinding.
     i32.const 0
     i32.load8_u tinygo_rewinding
@@ -13,7 +12,7 @@ tinygo_unwind: // func (state *stackState) unwind()
     call stop_rewind
     i32.const 0
     i32.const 0
-    i32.store8 rewinding // tinygo_rewinding = false;
+    i32.store8 tinygo_rewinding // tinygo_rewinding = false;
     else
     // Save the C stack pointer (destination structure pointer is in local 0).
     local.get 0
@@ -31,7 +30,6 @@ tinygo_unwind: // func (state *stackState) unwind()
 .type tinygo_launch,@function
 tinygo_launch: // func (state *state) launch()
     .functype tinygo_launch (i32) -> ()
-    .local i32
     // Switch to the goroutine's C stack.
     global.get __stack_pointer // prev := getCurrentStackPointer()
     local.get 0
@@ -55,7 +53,6 @@ tinygo_launch: // func (state *state) launch()
 .type    tinygo_rewind,@function
 tinygo_rewind: // func (state *state) rewind()
     .functype tinygo_rewind (i32) -> ()
-    .local i32
     // Switch to the goroutine's C stack.
     global.get __stack_pointer // prev := getCurrentStackPointer()
     local.get 0