641dcd7c16
This change implements a new "scheduler" for WebAssembly using binaryen's asyncify transform. This is more reliable than the current "coroutines" transform, and works with non-Go code in the call stack. runtime (js/wasm): handle scheduler nesting If WASM calls into JS which calls back into WASM, it is possible for the scheduler to nest. The event from the callback must be handled immediately, so the task cannot simply be deferred to the outer scheduler. This creates a minimal scheduler loop which is used to handle such nesting.
209 строки
9,1 КиБ
LLVM
209 строки
9,1 КиБ
LLVM
; ModuleID = 'goroutine.go'
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source_filename = "goroutine.go"
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target datalayout = "e-m:e-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64"
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target triple = "thumbv7m-unknown-unknown-eabi"
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%runtime.channel = type { i32, i32, i8, %runtime.channelBlockedList*, i32, i32, i32, i8* }
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%runtime.channelBlockedList = type { %runtime.channelBlockedList*, %"internal/task.Task"*, %runtime.chanSelectState*, { %runtime.channelBlockedList*, i32, i32 } }
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%"internal/task.Task" = type { %"internal/task.Task"*, i8*, i64, %"internal/task.state" }
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%"internal/task.state" = type { i32, i32* }
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%runtime.chanSelectState = type { %runtime.channel*, i8* }
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@"main$string" = internal unnamed_addr constant [4 x i8] c"test", align 1
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declare noalias nonnull i8* @runtime.alloc(i32, i8*, i8*, i8*)
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; Function Attrs: nounwind
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define hidden void @main.init(i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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ret void
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}
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; Function Attrs: nounwind
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define hidden void @main.regularFunctionGoroutine(i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%stacksize = call i32 @"internal/task.getGoroutineStackSize"(i32 ptrtoint (void (i8*)* @"main.regularFunction$gowrapper" to i32), i8* undef, i8* undef) #0
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call void @"internal/task.start"(i32 ptrtoint (void (i8*)* @"main.regularFunction$gowrapper" to i32), i8* nonnull inttoptr (i32 5 to i8*), i32 %stacksize, i8* undef, i8* null) #0
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ret void
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}
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declare void @main.regularFunction(i32, i8*, i8*)
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; Function Attrs: nounwind
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define linkonce_odr void @"main.regularFunction$gowrapper"(i8* %0) unnamed_addr #1 {
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entry:
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%unpack.int = ptrtoint i8* %0 to i32
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call void @main.regularFunction(i32 %unpack.int, i8* undef, i8* undef) #0
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ret void
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}
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declare i32 @"internal/task.getGoroutineStackSize"(i32, i8*, i8*)
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declare void @"internal/task.start"(i32, i8*, i32, i8*, i8*)
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; Function Attrs: nounwind
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define hidden void @main.inlineFunctionGoroutine(i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%stacksize = call i32 @"internal/task.getGoroutineStackSize"(i32 ptrtoint (void (i8*)* @"main.inlineFunctionGoroutine$1$gowrapper" to i32), i8* undef, i8* undef) #0
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call void @"internal/task.start"(i32 ptrtoint (void (i8*)* @"main.inlineFunctionGoroutine$1$gowrapper" to i32), i8* nonnull inttoptr (i32 5 to i8*), i32 %stacksize, i8* undef, i8* null) #0
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ret void
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}
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; Function Attrs: nounwind
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define hidden void @"main.inlineFunctionGoroutine$1"(i32 %x, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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ret void
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}
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; Function Attrs: nounwind
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define linkonce_odr void @"main.inlineFunctionGoroutine$1$gowrapper"(i8* %0) unnamed_addr #2 {
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entry:
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%unpack.int = ptrtoint i8* %0 to i32
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call void @"main.inlineFunctionGoroutine$1"(i32 %unpack.int, i8* undef, i8* undef)
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ret void
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}
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; Function Attrs: nounwind
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define hidden void @main.closureFunctionGoroutine(i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%n = call i8* @runtime.alloc(i32 4, i8* nonnull inttoptr (i32 3 to i8*), i8* undef, i8* null) #0
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%0 = bitcast i8* %n to i32*
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store i32 3, i32* %0, align 4
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%1 = call i8* @runtime.alloc(i32 8, i8* null, i8* undef, i8* null) #0
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%2 = bitcast i8* %1 to i32*
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store i32 5, i32* %2, align 4
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%3 = getelementptr inbounds i8, i8* %1, i32 4
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%4 = bitcast i8* %3 to i8**
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store i8* %n, i8** %4, align 4
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%stacksize = call i32 @"internal/task.getGoroutineStackSize"(i32 ptrtoint (void (i8*)* @"main.closureFunctionGoroutine$1$gowrapper" to i32), i8* undef, i8* undef) #0
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call void @"internal/task.start"(i32 ptrtoint (void (i8*)* @"main.closureFunctionGoroutine$1$gowrapper" to i32), i8* nonnull %1, i32 %stacksize, i8* undef, i8* null) #0
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%5 = load i32, i32* %0, align 4
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call void @runtime.printint32(i32 %5, i8* undef, i8* null) #0
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ret void
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}
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; Function Attrs: nounwind
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define hidden void @"main.closureFunctionGoroutine$1"(i32 %x, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%unpack.ptr = bitcast i8* %context to i32*
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store i32 7, i32* %unpack.ptr, align 4
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ret void
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}
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; Function Attrs: nounwind
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define linkonce_odr void @"main.closureFunctionGoroutine$1$gowrapper"(i8* %0) unnamed_addr #3 {
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entry:
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%1 = bitcast i8* %0 to i32*
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%2 = load i32, i32* %1, align 4
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%3 = getelementptr inbounds i8, i8* %0, i32 4
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%4 = bitcast i8* %3 to i8**
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%5 = load i8*, i8** %4, align 4
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call void @"main.closureFunctionGoroutine$1"(i32 %2, i8* %5, i8* undef)
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ret void
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}
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declare void @runtime.printint32(i32, i8*, i8*)
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; Function Attrs: nounwind
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define hidden void @main.funcGoroutine(i8* %fn.context, void ()* %fn.funcptr, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%0 = call i8* @runtime.alloc(i32 12, i8* null, i8* undef, i8* null) #0
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%1 = bitcast i8* %0 to i32*
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store i32 5, i32* %1, align 4
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%2 = getelementptr inbounds i8, i8* %0, i32 4
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%3 = bitcast i8* %2 to i8**
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store i8* %fn.context, i8** %3, align 4
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%4 = getelementptr inbounds i8, i8* %0, i32 8
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%5 = bitcast i8* %4 to void ()**
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store void ()* %fn.funcptr, void ()** %5, align 4
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%stacksize = call i32 @"internal/task.getGoroutineStackSize"(i32 ptrtoint (void (i8*)* @main.funcGoroutine.gowrapper to i32), i8* undef, i8* undef) #0
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call void @"internal/task.start"(i32 ptrtoint (void (i8*)* @main.funcGoroutine.gowrapper to i32), i8* nonnull %0, i32 %stacksize, i8* undef, i8* null) #0
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ret void
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}
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; Function Attrs: nounwind
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define linkonce_odr void @main.funcGoroutine.gowrapper(i8* %0) unnamed_addr #4 {
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entry:
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%1 = bitcast i8* %0 to i32*
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%2 = load i32, i32* %1, align 4
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%3 = getelementptr inbounds i8, i8* %0, i32 4
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%4 = bitcast i8* %3 to i8**
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%5 = load i8*, i8** %4, align 4
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%6 = getelementptr inbounds i8, i8* %0, i32 8
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%7 = bitcast i8* %6 to void (i32, i8*, i8*)**
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%8 = load void (i32, i8*, i8*)*, void (i32, i8*, i8*)** %7, align 4
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call void %8(i32 %2, i8* %5, i8* undef) #0
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ret void
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}
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; Function Attrs: nounwind
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define hidden void @main.recoverBuiltinGoroutine(i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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ret void
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}
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; Function Attrs: nounwind
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define hidden void @main.copyBuiltinGoroutine(i8* %dst.data, i32 %dst.len, i32 %dst.cap, i8* %src.data, i32 %src.len, i32 %src.cap, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%copy.n = call i32 @runtime.sliceCopy(i8* %dst.data, i8* %src.data, i32 %dst.len, i32 %src.len, i32 1, i8* undef, i8* null) #0
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ret void
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}
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declare i32 @runtime.sliceCopy(i8* nocapture writeonly, i8* nocapture readonly, i32, i32, i32, i8*, i8*)
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; Function Attrs: nounwind
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define hidden void @main.closeBuiltinGoroutine(%runtime.channel* dereferenceable_or_null(32) %ch, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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call void @runtime.chanClose(%runtime.channel* %ch, i8* undef, i8* null) #0
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ret void
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}
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declare void @runtime.chanClose(%runtime.channel* dereferenceable_or_null(32), i8*, i8*)
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; Function Attrs: nounwind
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define hidden void @main.startInterfaceMethod(i32 %itf.typecode, i8* %itf.value, i8* %context, i8* %parentHandle) unnamed_addr #0 {
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entry:
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%0 = call i8* @runtime.alloc(i32 16, i8* null, i8* undef, i8* null) #0
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%1 = bitcast i8* %0 to i8**
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store i8* %itf.value, i8** %1, align 4
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%2 = getelementptr inbounds i8, i8* %0, i32 4
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%.repack = bitcast i8* %2 to i8**
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store i8* getelementptr inbounds ([4 x i8], [4 x i8]* @"main$string", i32 0, i32 0), i8** %.repack, align 4
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%.repack1 = getelementptr inbounds i8, i8* %0, i32 8
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%3 = bitcast i8* %.repack1 to i32*
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store i32 4, i32* %3, align 4
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%4 = getelementptr inbounds i8, i8* %0, i32 12
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%5 = bitcast i8* %4 to i32*
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store i32 %itf.typecode, i32* %5, align 4
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%stacksize = call i32 @"internal/task.getGoroutineStackSize"(i32 ptrtoint (void (i8*)* @"interface:{Print:func:{basic:string}{}}.Print$invoke$gowrapper" to i32), i8* undef, i8* undef) #0
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call void @"internal/task.start"(i32 ptrtoint (void (i8*)* @"interface:{Print:func:{basic:string}{}}.Print$invoke$gowrapper" to i32), i8* nonnull %0, i32 %stacksize, i8* undef, i8* null) #0
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ret void
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}
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declare void @"interface:{Print:func:{basic:string}{}}.Print$invoke"(i8*, i8*, i32, i32, i8*, i8*) #5
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; Function Attrs: nounwind
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define linkonce_odr void @"interface:{Print:func:{basic:string}{}}.Print$invoke$gowrapper"(i8* %0) unnamed_addr #6 {
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entry:
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%1 = bitcast i8* %0 to i8**
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%2 = load i8*, i8** %1, align 4
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%3 = getelementptr inbounds i8, i8* %0, i32 4
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%4 = bitcast i8* %3 to i8**
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%5 = load i8*, i8** %4, align 4
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%6 = getelementptr inbounds i8, i8* %0, i32 8
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%7 = bitcast i8* %6 to i32*
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%8 = load i32, i32* %7, align 4
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%9 = getelementptr inbounds i8, i8* %0, i32 12
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%10 = bitcast i8* %9 to i32*
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%11 = load i32, i32* %10, align 4
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call void @"interface:{Print:func:{basic:string}{}}.Print$invoke"(i8* %2, i8* %5, i32 %8, i32 %11, i8* undef, i8* undef) #0
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ret void
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}
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attributes #0 = { nounwind }
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attributes #1 = { nounwind "tinygo-gowrapper"="main.regularFunction" }
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attributes #2 = { nounwind "tinygo-gowrapper"="main.inlineFunctionGoroutine$1" }
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attributes #3 = { nounwind "tinygo-gowrapper"="main.closureFunctionGoroutine$1" }
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attributes #4 = { nounwind "tinygo-gowrapper" }
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attributes #5 = { "tinygo-invoke"="reflect/methods.Print(string)" "tinygo-methods"="reflect/methods.Print(string)" }
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attributes #6 = { nounwind "tinygo-gowrapper"="interface:{Print:func:{basic:string}{}}.Print$invoke" }
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