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refactor coroutine lowering and tasks

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This commit is contained in:
Jaden Weiss
2020-01-03 00:23:37 -05:00
committed by Ayke
parent 2521cacb51
commit 6a50f25a48
40 changed files with 1830 additions and 1515 deletions
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compiler/goroutine.go
+6 -13
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@@ -13,24 +13,17 @@ import "tinygo.org/x/go-llvm"
//
// Because a go statement doesn't return anything, return undef.
func (c *Compiler) emitStartGoroutine(funcPtr llvm.Value, params []llvm.Value) llvm.Value {
paramBundle := c.emitPointerPack(params)
var callee llvm.Value
switch c.Scheduler() {
case "tasks":
paramBundle := c.emitPointerPack(params)
paramBundle = c.builder.CreatePtrToInt(paramBundle, c.uintptrType, "")
calleeValue := c.createGoroutineStartWrapper(funcPtr)
c.createRuntimeCall("startGoroutine", []llvm.Value{calleeValue, paramBundle}, "")
case "none", "tasks":
callee = c.createGoroutineStartWrapper(funcPtr)
case "coroutines":
// We roundtrip through runtime.makeGoroutine as a signal (to find these
// calls) and to break any optimizations LLVM will try to do: they are
// invalid if we called this as a regular function to be updated later.
calleeValue := c.builder.CreatePtrToInt(funcPtr, c.uintptrType, "")
calleeValue = c.createRuntimeCall("makeGoroutine", []llvm.Value{calleeValue}, "")
calleeValue = c.builder.CreateIntToPtr(calleeValue, funcPtr.Type(), "")
c.createCall(calleeValue, append(params, llvm.ConstPointerNull(c.i8ptrType)), "")
callee = c.builder.CreatePtrToInt(funcPtr, c.uintptrType, "")
default:
panic("unreachable")
}
c.createCall(c.mod.NamedFunction("internal/task.start"), []llvm.Value{callee, paramBundle, llvm.Undef(c.i8ptrType), llvm.ConstPointerNull(c.i8ptrType)}, "")
return llvm.Undef(funcPtr.Type().ElementType().ReturnType())
}