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Merge pull request #666 from cpunion/async-functions

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Async functions
This commit is contained in:
xushiwei
2024-08-06 20:38:34 +08:00
committed by GitHub
parent 43fd5d233a 7b2747ce0c
commit ee0e0a5c51
25 changed files with 2019 additions and 486 deletions
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27
cl/_testdata/async/in.go Normal file
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@@ -0,0 +1,27 @@
package async
import (
"github.com/goplus/llgo/x/async"
)
func GenInts() (co *async.Promise[int]) {
co.Yield(1)
co.Yield(2)
co.Yield(3)
return
}
func WrapGenInts() *async.Promise[int] {
return GenInts()
}
func UseGenInts() int {
co := WrapGenInts()
r := 0
for !co.Done() {
v := co.Value()
r += v
co.Next()
}
return r
}

201
cl/_testdata/async/out.ll Normal file
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@@ -0,0 +1,201 @@
; ModuleID = 'async'
source_filename = "async"
%"github.com/goplus/llgo/x/async.Promise[int]" = type { ptr, i64 }
@"async.init$guard" = global i1 false, align 1
define ptr @async.GenInts() presplitcoroutine {
entry:
%id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null)
%frame.size = call i64 @llvm.coro.size.i64()
%alloc.size = add i64 16, %frame.size
%promise = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 %alloc.size)
%need.dyn.alloc = call i1 @llvm.coro.alloc(token %id)
br i1 %need.dyn.alloc, label %alloc, label %_llgo_5
alloc: ; preds = %entry
%0 = getelementptr ptr, ptr %promise, i64 16
br label %_llgo_5
clean: ; preds = %_llgo_8, %_llgo_7, %_llgo_6, %_llgo_5
%1 = call ptr @llvm.coro.free(token %id, ptr %hdl)
br label %suspend
suspend: ; preds = %_llgo_8, %_llgo_7, %_llgo_6, %_llgo_5, %clean
%2 = call i1 @llvm.coro.end(ptr %hdl, i1 false, token none)
ret ptr %promise
trap: ; preds = %_llgo_8
call void @llvm.trap()
unreachable
_llgo_5: ; preds = %alloc, %entry
%frame = phi ptr [ null, %entry ], [ %0, %alloc ]
%hdl = call ptr @llvm.coro.begin(token %id, ptr %frame)
store ptr %hdl, ptr %promise, align 8
call void @"github.com/goplus/llgo/x/async.(*Promise).setValue[int]"(ptr %promise, i64 1)
%3 = call i8 @llvm.coro.suspend(token %id, i1 false)
switch i8 %3, label %suspend [
i8 0, label %_llgo_6
i8 1, label %clean
]
_llgo_6: ; preds = %_llgo_5
call void @"github.com/goplus/llgo/x/async.(*Promise).setValue[int]"(ptr %promise, i64 2)
%4 = call i8 @llvm.coro.suspend(token %id, i1 false)
switch i8 %4, label %suspend [
i8 0, label %_llgo_7
i8 1, label %clean
]
_llgo_7: ; preds = %_llgo_6
call void @"github.com/goplus/llgo/x/async.(*Promise).setValue[int]"(ptr %promise, i64 3)
%5 = call i8 @llvm.coro.suspend(token %id, i1 false)
switch i8 %5, label %suspend [
i8 0, label %_llgo_8
i8 1, label %clean
]
_llgo_8: ; preds = %_llgo_7
%6 = call i8 @llvm.coro.suspend(token %id, i1 true)
switch i8 %6, label %suspend [
i8 0, label %trap
i8 1, label %clean
]
}
define i64 @async.UseGenInts() {
_llgo_0:
%0 = call ptr @async.WrapGenInts()
br label %_llgo_3
_llgo_1: ; preds = %_llgo_3
%1 = call i64 @"github.com/goplus/llgo/x/async.(*Promise).Value[int]"(ptr %0)
%2 = add i64 %3, %1
call void @"github.com/goplus/llgo/x/async.(*Promise).Next[int]"(ptr %0)
br label %_llgo_3
_llgo_2: ; preds = %_llgo_3
ret i64 %3
_llgo_3: ; preds = %_llgo_1, %_llgo_0
%3 = phi i64 [ 0, %_llgo_0 ], [ %2, %_llgo_1 ]
%4 = call i1 @"github.com/goplus/llgo/x/async.(*Promise).Done[int]"(ptr %0)
br i1 %4, label %_llgo_2, label %_llgo_1
}
define ptr @async.WrapGenInts() presplitcoroutine {
entry:
%id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null)
%frame.size = call i64 @llvm.coro.size.i64()
%alloc.size = add i64 16, %frame.size
%promise = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 %alloc.size)
%need.dyn.alloc = call i1 @llvm.coro.alloc(token %id)
br i1 %need.dyn.alloc, label %alloc, label %_llgo_5
alloc: ; preds = %entry
%0 = getelementptr ptr, ptr %promise, i64 16
br label %_llgo_5
clean: ; preds = %_llgo_5
%1 = call ptr @llvm.coro.free(token %id, ptr %hdl)
br label %suspend
suspend: ; preds = %_llgo_5, %clean
%2 = call i1 @llvm.coro.end(ptr %hdl, i1 false, token none)
ret ptr %promise
trap: ; preds = %_llgo_5
call void @llvm.trap()
unreachable
_llgo_5: ; preds = %alloc, %entry
%frame = phi ptr [ null, %entry ], [ %0, %alloc ]
%hdl = call ptr @llvm.coro.begin(token %id, ptr %frame)
store ptr %hdl, ptr %promise, align 8
%3 = call ptr @async.GenInts()
%4 = call i8 @llvm.coro.suspend(token %id, i1 true)
switch i8 %4, label %suspend [
i8 0, label %trap
i8 1, label %clean
]
}
define void @async.init() {
_llgo_0:
%0 = load i1, ptr @"async.init$guard", align 1
br i1 %0, label %_llgo_2, label %_llgo_1
_llgo_1: ; preds = %_llgo_0
store i1 true, ptr @"async.init$guard", align 1
br label %_llgo_2
_llgo_2: ; preds = %_llgo_1, %_llgo_0
ret void
}
; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: read)
declare token @llvm.coro.id(i32, ptr readnone, ptr nocapture readonly, ptr)
; Function Attrs: nounwind memory(none)
declare i64 @llvm.coro.size.i64()
declare ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64)
; Function Attrs: nounwind
declare i1 @llvm.coro.alloc(token)
; Function Attrs: nounwind
declare ptr @llvm.coro.begin(token, ptr writeonly)
; Function Attrs: nounwind memory(argmem: read)
declare ptr @llvm.coro.free(token, ptr nocapture readonly)
; Function Attrs: nounwind
declare i1 @llvm.coro.end(ptr, i1, token)
; Function Attrs: cold noreturn nounwind memory(inaccessiblemem: write)
declare void @llvm.trap()
define void @"github.com/goplus/llgo/x/async.(*Promise).setValue[int]"(ptr %0, i64 %1) {
_llgo_0:
%2 = getelementptr inbounds %"github.com/goplus/llgo/x/async.Promise[int]", ptr %0, i32 0, i32 1
store i64 %1, ptr %2, align 4
ret void
}
; Function Attrs: nounwind
declare i8 @llvm.coro.suspend(token, i1)
define i1 @"github.com/goplus/llgo/x/async.(*Promise).Done[int]"(ptr %0) {
_llgo_0:
%1 = getelementptr inbounds %"github.com/goplus/llgo/x/async.Promise[int]", ptr %0, i32 0, i32 0
%2 = load ptr, ptr %1, align 8
%3 = call i1 @llvm.coro.done(ptr %2)
%4 = zext i1 %3 to i64
%5 = trunc i64 %4 to i8
%6 = icmp ne i8 %5, 0
ret i1 %6
}
define i64 @"github.com/goplus/llgo/x/async.(*Promise).Value[int]"(ptr %0) {
_llgo_0:
%1 = getelementptr inbounds %"github.com/goplus/llgo/x/async.Promise[int]", ptr %0, i32 0, i32 1
%2 = load i64, ptr %1, align 4
ret i64 %2
}
define void @"github.com/goplus/llgo/x/async.(*Promise).Next[int]"(ptr %0) {
_llgo_0:
%1 = getelementptr inbounds %"github.com/goplus/llgo/x/async.Promise[int]", ptr %0, i32 0, i32 0
%2 = load ptr, ptr %1, align 8
call void @llvm.coro.resume(ptr %2)
ret void
}
; Function Attrs: nounwind memory(argmem: readwrite)
declare i1 @llvm.coro.done(ptr nocapture readonly)
declare void @llvm.coro.resume(ptr)

119
cl/async.go Normal file
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@@ -0,0 +1,119 @@
/*
* Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package cl
import (
"go/constant"
"go/types"
"strings"
llssa "github.com/goplus/llgo/ssa"
"golang.org/x/tools/go/ssa"
)
// TODO(lijie): need more generics, shouldn't limit to async.Promise
func promiseType(ty types.Type) (types.Type, bool) {
// ty is a generic type, so we need to check the package path and type name
if ptrTy, ok := ty.(*types.Pointer); ok {
ty = ptrTy.Elem()
if ty, ok := ty.(*types.Named); ok {
if ty.Obj().Pkg() == nil {
return nil, false
}
if ty.Obj().Pkg().Path() == "github.com/goplus/llgo/x/async" && ty.Obj().Name() == "Promise" {
return ty, true
}
}
}
return nil, false
}
// check function return async.Promise[T]
// TODO(lijie): make it generic
func isAsyncFunc(sig *types.Signature) bool {
r := sig.Results()
if r.Len() != 1 {
return false
}
ty := r.At(0).Type()
_, ok := promiseType(ty)
return ok
}
func (p *context) coAwait(b llssa.Builder, args []ssa.Value) llssa.Expr {
if !isAsyncFunc(b.Func.RawType().(*types.Signature)) {
panic("coAwait(promise *T) T: invalid context")
}
if len(args) == 1 {
// promise := p.compileValue(b, args[0])
b.Unreachable()
// return b.CoroutineAwait(promise)
}
panic("coAwait(promise *T) T: invalid arguments")
}
func (p *context) coSuspend(b llssa.Builder, final llssa.Expr) {
b.CoSuspend(b.AsyncToken(), final, nil)
}
func (p *context) coDone(b llssa.Builder, args []ssa.Value) llssa.Expr {
if len(args) != 1 {
panic("coDone(promise *T): invalid arguments")
}
hdl := p.compileValue(b, args[0])
return b.CoDone(hdl)
}
func (p *context) coResume(b llssa.Builder, args []ssa.Value) {
if len(args) == 1 {
hdl := p.compileValue(b, args[0])
b.CoResume(hdl)
}
}
func (p *context) getSetValueFunc(fn *ssa.Function) llssa.Function {
typ := fn.Signature.Recv().Type()
mthds := p.goProg.MethodSets.MethodSet(typ)
for i := 0; i < mthds.Len(); i++ {
m := mthds.At(i)
if ssaMthd := p.goProg.MethodValue(m); ssaMthd != nil {
if ssaMthd.Name() == "setValue" || strings.HasPrefix(ssaMthd.Name(), "setValue[") {
setValueFn, _, _ := p.compileFunction(ssaMthd)
return setValueFn
}
}
}
panic("method setValue not found on type " + typ.String())
}
func (p *context) coReturn(b llssa.Builder, fn *ssa.Function, args []ssa.Value) {
setValueFn := p.getSetValueFunc(fn)
value := p.compileValue(b, args[1])
b.CoReturn(setValueFn, value)
}
func (p *context) coYield(b llssa.Builder, fn *ssa.Function, args []ssa.Value) {
setValueFn := p.getSetValueFunc(fn)
value := p.compileValue(b, args[1])
// TODO(lijie): find whether the co.Yield/co.Return is the last instruction
final := b.Const(constant.MakeBool(false), b.Prog.Bool())
b.CoYield(setValueFn, value, final)
}
func (p *context) coRun(b llssa.Builder, args []ssa.Value) {
panic("coRun(): not implemented")
}

30
cl/compile.go
View File

@@ -218,6 +218,7 @@ func (p *context) compileFuncDecl(pkg llssa.Package, f *ssa.Function) (llssa.Fun
log.Println("==> NewFunc", name, "type:", sig.Recv(), sig, "ftype:", ftype)
}
}
async := isAsyncFunc(f.Signature)
if fn == nil {
if name == "main" {
argc := types.NewParam(token.NoPos, pkgTypes, "", types.Typ[types.Int32])
@@ -227,13 +228,24 @@ func (p *context) compileFuncDecl(pkg llssa.Package, f *ssa.Function) (llssa.Fun
results := types.NewTuple(ret)
sig = types.NewSignatureType(nil, nil, nil, params, results, false)
}
fn = pkg.NewFuncEx(name, sig, llssa.Background(ftype), hasCtx)
fn = pkg.NewFuncEx(name, sig, llssa.Background(ftype), hasCtx, async)
}
nBlkOff := 0
if nblk := len(f.Blocks); nblk > 0 {
var entryBlk, allocBlk, cleanBlk, suspdBlk, trapBlk, beginBlk llssa.BasicBlock
if async {
nBlkOff = 5
entryBlk = fn.MakeBlock("entry")
allocBlk = fn.MakeBlock("alloc")
cleanBlk = fn.MakeBlock("clean")
suspdBlk = fn.MakeBlock("suspend")
trapBlk = fn.MakeBlock("trap")
}
fn.MakeBlocks(nblk) // to set fn.HasBody() = true
beginBlk = fn.Block(nBlkOff)
if f.Recover != nil { // set recover block
fn.SetRecover(fn.Block(f.Recover.Index))
// TODO(lijie): fix this for async function because of the block offset increase
fn.SetRecover(fn.Block(f.Recover.Index + nBlkOff))
}
p.inits = append(p.inits, func() {
p.fn = fn
@@ -249,6 +261,10 @@ func (p *context) compileFuncDecl(pkg llssa.Package, f *ssa.Function) (llssa.Fun
log.Println("==> FuncBody", name)
}
b := fn.NewBuilder()
b.SetBlockOffset(nBlkOff)
if async {
b.BeginAsync(fn, entryBlk, allocBlk, cleanBlk, suspdBlk, trapBlk, beginBlk)
}
p.bvals = make(map[ssa.Value]llssa.Expr)
off := make([]int, len(f.Blocks))
for i, block := range f.Blocks {
@@ -284,7 +300,7 @@ func (p *context) compileBlock(b llssa.Builder, block *ssa.BasicBlock, n int, do
var pkg = p.pkg
var fn = p.fn
var instrs = block.Instrs[n:]
var ret = fn.Block(block.Index)
var ret = fn.Block(block.Index + b.BlockOffset())
b.SetBlock(ret)
if doModInit {
if pyModInit = p.pyMod != ""; pyModInit {
@@ -322,7 +338,7 @@ func (p *context) compileBlock(b llssa.Builder, block *ssa.BasicBlock, n int, do
modPtr := pkg.PyNewModVar(modName, true).Expr
mod := b.Load(modPtr)
cond := b.BinOp(token.NEQ, mod, prog.Nil(mod.Type))
newBlk := fn.MakeBlock()
newBlk := fn.MakeBlock("")
b.If(cond, jumpTo, newBlk)
b.SetBlockEx(newBlk, llssa.AtEnd, false)
b.Store(modPtr, b.PyImportMod(modPath))
@@ -654,7 +670,11 @@ func (p *context) compileInstr(b llssa.Builder, instr ssa.Instruction) {
results = make([]llssa.Expr, 1)
results[0] = p.prog.IntVal(0, p.prog.CInt())
}
if b.Async() {
b.EndAsync()
} else {
b.Return(results...)
}
case *ssa.If:
fn := p.fn
cond := p.compileValue(b, v.Cond)

113
cl/compile_test.go
View File

@@ -53,7 +53,7 @@ func TestFromTestrt(t *testing.T) {
}
func TestFromTestdata(t *testing.T) {
cltest.FromDir(t, "", "./_testdata", false)
cltest.FromDir(t, "", "./_testdata", true)
}
func TestFromTestpymath(t *testing.T) {
@@ -124,3 +124,114 @@ _llgo_2: ; preds = %_llgo_1, %_llgo_0
}
`)
}
func TestAsyncFunc(t *testing.T) {
testCompile(t, `package foo
import "github.com/goplus/llgo/x/async"
func GenInts() (co *async.Promise[int]) {
co.Yield(1)
co.Yield(2)
return
}
`, `; ModuleID = 'foo'
source_filename = "foo"
@"foo.init$guard" = global i1 false, align 1
define ptr @foo.GenInts() presplitcoroutine {
entry:
%id = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null)
%frame.size = call i64 @llvm.coro.size.i64()
%alloc.size = add i64 16, %frame.size
%promise = call ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64 %alloc.size)
%need.dyn.alloc = call i1 @llvm.coro.alloc(token %id)
br i1 %need.dyn.alloc, label %alloc, label %_llgo_5
alloc: ; preds = %entry
%0 = getelementptr ptr, ptr %promise, i64 16
br label %_llgo_5
clean: ; preds = %_llgo_7, %_llgo_6, %_llgo_5
%1 = call ptr @llvm.coro.free(token %id, ptr %hdl)
br label %suspend
suspend: ; preds = %_llgo_7, %_llgo_6, %_llgo_5, %clean
%2 = call i1 @llvm.coro.end(ptr %hdl, i1 false, token none)
ret ptr %promise
trap: ; preds = %_llgo_7
call void @llvm.trap()
unreachable
_llgo_5: ; preds = %alloc, %entry
%frame = phi ptr [ null, %entry ], [ %0, %alloc ]
%hdl = call ptr @llvm.coro.begin(token %id, ptr %frame)
store ptr %hdl, ptr %promise, align 8
call void @"github.com/goplus/llgo/x/async.(*Promise).setValue[int]"(ptr %promise, i64 1)
%3 = call i8 @llvm.coro.suspend(token %id, i1 false)
switch i8 %3, label %suspend [
i8 0, label %_llgo_6
i8 1, label %clean
]
_llgo_6: ; preds = %_llgo_5
call void @"github.com/goplus/llgo/x/async.(*Promise).setValue[int]"(ptr %promise, i64 2)
%4 = call i8 @llvm.coro.suspend(token %id, i1 false)
switch i8 %4, label %suspend [
i8 0, label %_llgo_7
i8 1, label %clean
]
_llgo_7: ; preds = %_llgo_6
%5 = call i8 @llvm.coro.suspend(token %id, i1 true)
switch i8 %5, label %suspend [
i8 0, label %trap
i8 1, label %clean
]
}
define void @foo.init() {
_llgo_0:
%0 = load i1, ptr @"foo.init$guard", align 1
br i1 %0, label %_llgo_2, label %_llgo_1
_llgo_1: ; preds = %_llgo_0
store i1 true, ptr @"foo.init$guard", align 1
br label %_llgo_2
_llgo_2: ; preds = %_llgo_1, %_llgo_0
ret void
}
; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: read)
declare token @llvm.coro.id(i32, ptr readnone, ptr nocapture readonly, ptr)
; Function Attrs: nounwind memory(none)
declare i64 @llvm.coro.size.i64()
declare ptr @"github.com/goplus/llgo/internal/runtime.AllocZ"(i64)
; Function Attrs: nounwind
declare i1 @llvm.coro.alloc(token)
; Function Attrs: nounwind
declare ptr @llvm.coro.begin(token, ptr writeonly)
; Function Attrs: nounwind memory(argmem: read)
declare ptr @llvm.coro.free(token, ptr nocapture readonly)
; Function Attrs: nounwind
declare i1 @llvm.coro.end(ptr, i1, token)
; Function Attrs: cold noreturn nounwind memory(inaccessiblemem: write)
declare void @llvm.trap()
declare void @"github.com/goplus/llgo/x/async.(*Promise).setValue[int]"(ptr, i64)
; Function Attrs: nounwind
declare i8 @llvm.coro.suspend(token, i1)
`)
}

11
cl/import.go
View File

@@ -412,7 +412,16 @@ const (
llgoAtomicUMax = llgoAtomicOpBase + llssa.OpUMax
llgoAtomicUMin = llgoAtomicOpBase + llssa.OpUMin
llgoAtomicOpLast = llgoAtomicOpBase + int(llssa.OpUMin)
llgoCoBase = llgoInstrBase + 0x30
llgoCoAwait = llgoCoBase + 0
llgoCoSuspend = llgoCoBase + 1
llgoCoDone = llgoCoBase + 2
llgoCoResume = llgoCoBase + 3
llgoCoReturn = llgoCoBase + 4
llgoCoYield = llgoCoBase + 5
llgoCoRun = llgoCoBase + 6
llgoAtomicOpLast = llgoCoRun
)
func (p *context) funcName(fn *ssa.Function, ignore bool) (*types.Package, string, int) {

25
cl/instr.go
View File

@@ -237,6 +237,14 @@ var llgoInstrs = map[string]int{
"atomicMin": int(llgoAtomicMin),
"atomicUMax": int(llgoAtomicUMax),
"atomicUMin": int(llgoAtomicUMin),
"coAwait": int(llgoCoAwait),
"coResume": int(llgoCoResume),
"coSuspend": int(llgoCoSuspend),
"coDone": int(llgoCoDone),
"coReturn": int(llgoCoReturn),
"coYield": int(llgoCoYield),
"coRun": int(llgoCoRun),
}
// funcOf returns a function by name and set ftype = goFunc, cFunc, etc.
@@ -265,7 +273,8 @@ func (p *context) funcOf(fn *ssa.Function) (aFn llssa.Function, pyFn llssa.PyObj
return nil, nil, ignoredFunc
}
sig := fn.Signature
aFn = pkg.NewFuncEx(name, sig, llssa.Background(ftype), false)
async := isAsyncFunc(sig)
aFn = pkg.NewFuncEx(name, sig, llssa.Background(ftype), false, async)
}
}
return
@@ -390,6 +399,20 @@ func (p *context) call(b llssa.Builder, act llssa.DoAction, call *ssa.CallCommon
ret = p.funcAddr(b, args)
case llgoUnreachable: // func unreachable()
b.Unreachable()
case llgoCoAwait:
ret = p.coAwait(b, args)
case llgoCoSuspend:
p.coSuspend(b, p.prog.BoolVal(false))
case llgoCoDone:
return p.coDone(b, args)
case llgoCoResume:
p.coResume(b, args)
case llgoCoReturn:
p.coReturn(b, cv, args)
case llgoCoYield:
p.coYield(b, cv, args)
case llgoCoRun:
p.coRun(b, args)
default:
if ftype >= llgoAtomicOpBase && ftype <= llgoAtomicOpLast {
ret = p.atomic(b, llssa.AtomicOp(ftype-llgoAtomicOpBase), args)

2
ssa/cl_test.go
View File

@@ -50,7 +50,7 @@ func TestFromTestrt(t *testing.T) {
}
func TestFromTestdata(t *testing.T) {
cltest.FromDir(t, "", "../cl/_testdata", false)
cltest.FromDir(t, "", "../cl/_testdata", true)
}
func TestMakeInterface(t *testing.T) {

690
ssa/coro.go Normal file
View File

@@ -0,0 +1,690 @@
/*
* Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package ssa
import (
"fmt"
"go/constant"
"go/token"
"go/types"
)
// declare void @llvm.coro.destroy(ptr <handle>)
// declare void @llvm.coro.resume(ptr <handle>)
// declare i1 @llvm.coro.done(ptr <handle>)
// declare ptr @llvm.coro.promise(ptr <ptr>, i32 <alignment>, i1 <from>)
// declare i32 @llvm.coro.size.i32()
// declare i64 @llvm.coro.size.i64()
// declare i32 @llvm.coro.align.i32()
// declare i64 @llvm.coro.align.i64()
// declare ptr @llvm.coro.begin(token <id>, ptr <mem>)
// declare ptr @llvm.coro.free(token %id, ptr <frame>)
// declare i1 @llvm.coro.alloc(token <id>)
// declare ptr @llvm.coro.noop()
// declare ptr @llvm.coro.frame()
// declare token @llvm.coro.id(i32 <align>, ptr <promise>, ptr <coroaddr>, ptr <fnaddrs>)
// declare token @llvm.coro.id.async(i32 <context size>, i32 <align>, ptr <context arg>, ptr <async function pointer>)
// declare token @llvm.coro.id.retcon(i32 <size>, i32 <align>, ptr <buffer>, ptr <continuation prototype>, ptr <alloc>, ptr <dealloc>)
// declare token @llvm.coro.id.retcon.once(i32 <size>, i32 <align>, ptr <buffer>, ptr <prototype>, ptr <alloc>, ptr <dealloc>)
// declare i1 @llvm.coro.end(ptr <handle>, i1 <unwind>, token <result.token>)
// declare token @llvm.coro.end.results(...)
// declare i1 @llvm.coro.end.async(ptr <handle>, i1 <unwind>, ...)
// declare i8 @llvm.coro.suspend(token <save>, i1 <final>)
// declare token @llvm.coro.save(ptr <handle>)
// declare {ptr, ptr, ptr} @llvm.coro.suspend.async(ptr <resume function>, ptr <context projection function>, ... <function to call> ... <arguments to function>)
// declare ptr @llvm.coro.prepare.async(ptr <coroutine function>)
// declare i1 @llvm.coro.suspend.retcon(...)
// declare void @await_suspend_function(ptr %awaiter, ptr %hdl)
// declare void @llvm.coro.await.suspend.void(ptr <awaiter>, ptr <handle>, ptr <await_suspend_function>)
// declare i1 @llvm.coro.await.suspend.bool(ptr <awaiter>, ptr <handle>, ptr <await_suspend_function>)
// declare void @llvm.coro.await.suspend.handle(ptr <awaiter>, ptr <handle>, ptr <await_suspend_function>)
// -----------------------------------------------------------------------------
// declare void @llvm.coro.destroy(ptr <handle>)
func (p Program) tyCoDestroy() *types.Signature {
if p.coDestroyTy == nil {
i8Ptr := types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type)
params := types.NewTuple(i8Ptr)
p.coDestroyTy = types.NewSignatureType(nil, nil, nil, params, nil, false)
}
return p.coDestroyTy
}
// declare void @llvm.coro.resume(ptr <handle>)
func (p Program) tyCoResume() *types.Signature {
if p.coResumeTy == nil {
i8Ptr := types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type)
params := types.NewTuple(i8Ptr)
p.coResumeTy = types.NewSignatureType(nil, nil, nil, params, nil, false)
}
return p.coResumeTy
}
// declare i1 @llvm.coro.done(ptr <handle>)
func (p Program) tyCoDone() *types.Signature {
if p.coDoneTy == nil {
i8Ptr := types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type)
params := types.NewTuple(i8Ptr)
results := types.NewTuple(types.NewParam(token.NoPos, nil, "", p.Bool().raw.Type))
p.coDoneTy = types.NewSignatureType(nil, nil, nil, params, results, false)
}
return p.coDoneTy
}
// declare ptr @llvm.coro.promise(ptr <ptr>, i32 <alignment>, i1 <from>)
func (p Program) tyCoPromise() *types.Signature {
if p.coPromiseTy == nil {
i8Ptr := types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type)
i32 := types.NewParam(token.NoPos, nil, "", p.Int32().raw.Type)
boolParam := types.NewParam(token.NoPos, nil, "", p.Bool().raw.Type)
params := types.NewTuple(i8Ptr, i32, boolParam)
results := types.NewTuple(i8Ptr)
p.coPromiseTy = types.NewSignatureType(nil, nil, nil, params, results, false)
}
return p.coPromiseTy
}
// declare i32 @llvm.coro.size.i32()
func (p Program) tyCoSizeI32() *types.Signature {
if p.coSizeI32Ty == nil {
results := types.NewTuple(types.NewParam(token.NoPos, nil, "", p.Int32().raw.Type))
p.coSizeI32Ty = types.NewSignatureType(nil, nil, nil, nil, results, false)
}
return p.coSizeI32Ty
}
// declare i64 @llvm.coro.size.i64()
func (p Program) tyCoSizeI64() *types.Signature {
if p.coSizeI64Ty == nil {
results := types.NewTuple(types.NewParam(token.NoPos, nil, "", p.Int64().raw.Type))
p.coSizeI64Ty = types.NewSignatureType(nil, nil, nil, nil, results, false)
}
return p.coSizeI64Ty
}
// declare i32 @llvm.coro.align.i32()
func (p Program) tyCoAlignI32() *types.Signature {
if p.coAlignI32Ty == nil {
results := types.NewTuple(types.NewParam(token.NoPos, nil, "", p.Int32().raw.Type))
p.coAlignI32Ty = types.NewSignatureType(nil, nil, nil, nil, results, false)
}
return p.coAlignI32Ty
}
// declare i64 @llvm.coro.align.i64()
func (p Program) tyCoAlignI64() *types.Signature {
if p.coAlignI64Ty == nil {
results := types.NewTuple(types.NewParam(token.NoPos, nil, "", p.Int64().raw.Type))
p.coAlignI64Ty = types.NewSignatureType(nil, nil, nil, nil, results, false)
}
return p.coAlignI64Ty
}
// declare ptr @llvm.coro.begin(token <id>, ptr <mem>)
func (p Program) tyCoBegin() *types.Signature {
if p.coBeginTy == nil {
tokenParam := types.NewParam(token.NoPos, nil, "", p.Token().raw.Type)
i8Ptr := types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type)
params := types.NewTuple(tokenParam, i8Ptr)
results := types.NewTuple(i8Ptr)
p.coBeginTy = types.NewSignatureType(nil, nil, nil, params, results, false)
}
return p.coBeginTy
}
// declare ptr @llvm.coro.free(token %id, ptr <frame>)
func (p Program) tyCoFree() *types.Signature {
if p.coFreeTy == nil {
tokenParam := types.NewParam(token.NoPos, nil, "", p.Token().raw.Type)
i8Ptr := types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type)
params := types.NewTuple(tokenParam, i8Ptr)
results := types.NewTuple(i8Ptr)
p.coFreeTy = types.NewSignatureType(nil, nil, nil, params, results, false)
}
return p.coFreeTy
}
// declare i1 @llvm.coro.alloc(token <id>)
func (p Program) tyCoAlloc() *types.Signature {
if p.coAllocTy == nil {
tokenParam := types.NewParam(token.NoPos, nil, "", p.Token().raw.Type)
params := types.NewTuple(tokenParam)
boolParam := types.NewParam(token.NoPos, nil, "", p.Bool().raw.Type)
results := types.NewTuple(boolParam)
p.coAllocTy = types.NewSignatureType(nil, nil, nil, params, results, false)
}
return p.coAllocTy
}
// declare ptr @llvm.coro.noop()
func (p Program) tyCoNoop() *types.Signature {
if p.coNoopTy == nil {
results := types.NewTuple(types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type))
p.coNoopTy = types.NewSignatureType(nil, nil, nil, nil, results, false)
}
return p.coNoopTy
}
// declare ptr @llvm.coro.frame()
func (p Program) tyCoFrame() *types.Signature {
if p.coFrameTy == nil {
results := types.NewTuple(types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type))
p.coFrameTy = types.NewSignatureType(nil, nil, nil, nil, results, false)
}
return p.coFrameTy
}
// declare token @llvm.coro.id(i32 <align>, ptr <promise>, ptr <coroaddr>, ptr <fnaddrs>)
func (p Program) tyCoID() *types.Signature {
if p.coIDTy == nil {
i32 := types.NewParam(token.NoPos, nil, "", p.Int32().raw.Type)
i8Ptr := types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type)
params := types.NewTuple(i32, i8Ptr, i8Ptr, i8Ptr)
tokenParam := types.NewParam(token.NoPos, nil, "", p.Token().raw.Type)
results := types.NewTuple(tokenParam)
p.coIDTy = types.NewSignatureType(nil, nil, nil, params, results, false)
}
return p.coIDTy
}
/*
// declare token @llvm.coro.id.async(i32 <context size>, i32 <align>, ptr <context arg>, ptr <async function pointer>)
func (p Program) tyCoIDAsync() *types.Signature {
if p.coIDAsyncTy == nil {
i32 := types.NewParam(token.NoPos, nil, "", p.Int32().raw.Type)
i8Ptr := types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type)
params := types.NewTuple(i32, i32, i8Ptr, i8Ptr)
tokenParam := types.NewParam(token.NoPos, nil, "", p.Token().raw.Type)
results := types.NewTuple(tokenParam)
p.coIDAsyncTy = types.NewSignatureType(nil, nil, nil, params, results, false)
}
return p.coIDAsyncTy
}
// declare token @llvm.coro.id.retcon(i32 <size>, i32 <align>, ptr <buffer>, ptr <continuation prototype>, ptr <alloc>, ptr <dealloc>)
func (p Program) tyCoIDRetcon() *types.Signature {
if p.coIDRetconTy == nil {
i32 := types.NewParam(token.NoPos, nil, "", p.Int32().raw.Type)
i8Ptr := types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type)
params := types.NewTuple(i32, i32, i8Ptr, i8Ptr, i8Ptr, i8Ptr)
tokenParam := types.NewParam(token.NoPos, nil, "", p.Token().raw.Type)
results := types.NewTuple(tokenParam)
p.coIDRetconTy = types.NewSignatureType(nil, nil, nil, params, results, false)
}
return p.coIDRetconTy
}
// declare token @llvm.coro.id.retcon.once(i32 <size>, i32 <align>, ptr <buffer>, ptr <prototype>, ptr <alloc>, ptr <dealloc>)
func (p Program) tyCoIDRetconOnce() *types.Signature {
if p.coIDRetconOnceTy == nil {
i32 := types.NewParam(token.NoPos, nil, "", p.Int32().raw.Type)
i8Ptr := types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type)
params := types.NewTuple(i32, i32, i8Ptr, i8Ptr, i8Ptr, i8Ptr)
tokenParam := types.NewParam(token.NoPos, nil, "", p.Token().raw.Type)
results := types.NewTuple(tokenParam)
p.coIDRetconOnceTy = types.NewSignatureType(nil, nil, nil, params, results, false)
}
return p.coIDRetconOnceTy
}
*/
// declare i1 @llvm.coro.end(ptr <handle>, i1 <unwind>, token <result.token>)
func (p Program) tyCoEnd() *types.Signature {
if p.coEndTy == nil {
i8Ptr := types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type)
boolParam := types.NewParam(token.NoPos, nil, "", p.Bool().raw.Type)
tokenParam := types.NewParam(token.NoPos, nil, "", p.Token().raw.Type)
params := types.NewTuple(i8Ptr, boolParam, tokenParam)
results := types.NewTuple(boolParam)
p.coEndTy = types.NewSignatureType(nil, nil, nil, params, results, false)
}
return p.coEndTy
}
/*
// TODO(lijie): varargs
// declare token @llvm.coro.end.results(...)
func (p Program) tyCoEndResults() *types.Signature {
panic("not implemented")
}
// TODO(lijie): varargs
// declare i1 @llvm.coro.end.async(ptr <handle>, i1 <unwind>, ...)
func (p Program) tyCoEndAsync() *types.Signature {
panic("not implemented")
}
*/
// declare i8 @llvm.coro.suspend(token <save>, i1 <final>)
func (p Program) tyCoSuspend() *types.Signature {
if p.coSuspendTy == nil {
tokenParam := types.NewParam(token.NoPos, nil, "", p.Token().raw.Type)
boolParam := types.NewParam(token.NoPos, nil, "", p.Bool().raw.Type)
params := types.NewTuple(tokenParam, boolParam)
paramByte := types.NewParam(token.NoPos, nil, "", p.Byte().raw.Type)
results := types.NewTuple(paramByte)
p.coSuspendTy = types.NewSignatureType(nil, nil, nil, params, results, false)
}
return p.coSuspendTy
}
/*
// declare token @llvm.coro.save(ptr <handle>)
func (p Program) tyCoSave() *types.Signature {
if p.coSaveTy == nil {
i8Ptr := types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type)
params := types.NewTuple(i8Ptr)
tokenParam := types.NewParam(token.NoPos, nil, "", p.Token().raw.Type)
results := types.NewTuple(tokenParam)
p.coSaveTy = types.NewSignatureType(nil, nil, nil, params, results, false)
}
return p.coSaveTy
}
// TODO(lijie): varargs
// declare {ptr, ptr, ptr} @llvm.coro.suspend.async(ptr <resume function>, ptr <context projection function>, ... <function to call> ... <arguments to function>)
func (p Program) tyCoSuspendAsync() *types.Signature {
panic("not implemented")
}
// declare ptr @llvm.coro.prepare.async(ptr <coroutine function>)
func (p Program) tyCoPrepareAsync() *types.Signature {
if p.coPrepareAsyncTy == nil {
i8Ptr := types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type)
params := types.NewTuple(i8Ptr)
results := types.NewTuple(i8Ptr)
p.coPrepareAsyncTy = types.NewSignatureType(nil, nil, nil, params, results, false)
}
return p.coPrepareAsyncTy
}
// declare i1 @llvm.coro.suspend.retcon(...)
func (p Program) tyCoSuspendRetcon() *types.Signature {
panic("not implemented")
}
// declare void @await_suspend_function(ptr %awaiter, ptr %hdl)
func (p Program) tyCoAwaitSuspendFunction() *types.Signature {
if p.coAwaitSuspendFunctionTy == nil {
i8Ptr := types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type)
params := types.NewTuple(i8Ptr, i8Ptr)
p.coAwaitSuspendFunctionTy = types.NewSignatureType(nil, nil, nil, params, nil, false)
}
return p.coAwaitSuspendFunctionTy
}
// declare void @llvm.coro.await.suspend.void(ptr <awaiter>, ptr <handle>, ptr <await_suspend_function>)
func (p Program) tyCoAwaitSuspendVoid() *types.Signature {
if p.coAwaitSuspendVoidTy == nil {
i8Ptr := types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type)
params := types.NewTuple(i8Ptr, i8Ptr, i8Ptr)
p.coAwaitSuspendVoidTy = types.NewSignatureType(nil, nil, nil, params, nil, false)
}
return p.coAwaitSuspendVoidTy
}
// declare i1 @llvm.coro.await.suspend.bool(ptr <awaiter>, ptr <handle>, ptr <await_suspend_function>)
func (p Program) tyCoAwaitSuspendBool() *types.Signature {
if p.coAwaitSuspendBoolTy == nil {
i8Ptr := types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type)
params := types.NewTuple(i8Ptr, i8Ptr, i8Ptr)
results := types.NewTuple(types.NewParam(token.NoPos, nil, "", p.Bool().raw.Type))
p.coAwaitSuspendBoolTy = types.NewSignatureType(nil, nil, nil, params, results, false)
}
return p.coAwaitSuspendBoolTy
}
// declare void @llvm.coro.await.suspend.handle(ptr <awaiter>, ptr <handle>, ptr <await_suspend_function>)
func (p Program) tyCoAwaitSuspendHandle() *types.Signature {
if p.coAwaitSuspendHandleTy == nil {
i8Ptr := types.NewParam(token.NoPos, nil, "", p.VoidPtr().raw.Type)
params := types.NewTuple(i8Ptr, i8Ptr, i8Ptr)
p.coAwaitSuspendHandleTy = types.NewSignatureType(nil, nil, nil, params, nil, false)
}
return p.coAwaitSuspendHandleTy
}
*/
// -----------------------------------------------------------------------------
func (b Builder) SetBlockOffset(offset int) {
b.blkOffset = offset
}
func (b Builder) BlockOffset() int {
return b.blkOffset
}
func (b Builder) Async() bool {
return b.async
}
func (b Builder) AsyncToken() Expr {
return b.asyncToken
}
func (b Builder) EndAsync() {
b.onReturn()
}
/*
pesudo code:
retPtr := malloc(sizeof(Promise))
id := @llvm.coro.id(0, null, null, null)
promiseSize := sizeof(Promise[T])
frameSize := @llvm.coro.size.i64()
allocSize := promiseSize + frameSize
promise := malloc(allocSize)
needAlloc := @llvm.coro.alloc(id)
; Allocate memory for return type and coroutine frame
frame := null
if needAlloc {
frame := malloc(frameSize)
}
hdl := @llvm.coro.begin(id, frame)
*retPtr = hdl
*/
func (b Builder) BeginAsync(fn Function, entryBlk, allocBlk, cleanBlk, suspdBlk, trapBlk, beginBlk BasicBlock) {
ty := fn.Type.RawType().(*types.Signature).Results().At(0).Type()
ptrTy, ok := ty.(*types.Pointer)
if !ok {
panic("async function must return a *async.Promise")
}
promiseTy := b.Prog.Type(ptrTy.Elem(), InGo)
b.async = true
b.SetBlock(entryBlk)
align := b.Const(constant.MakeInt64(0), b.Prog.CInt()).SetName("align")
null := b.Const(nil, b.Prog.CIntPtr())
id := b.CoID(align, null, null, null).SetName("id")
b.asyncToken = id
promiseSize := b.Const(constant.MakeUint64(b.Prog.SizeOf(promiseTy)), b.Prog.Int64()).SetName("alloc.size")
frameSize := b.CoSizeI64().SetName("frame.size")
allocSize := b.BinOp(token.ADD, promiseSize, frameSize).SetName("alloc.size")
promise := b.AllocZ(allocSize).SetName("promise")
b.promise = promise
promise.Type = b.Prog.Pointer(promiseTy)
needAlloc := b.CoAlloc(id).SetName("need.dyn.alloc")
b.If(needAlloc, allocBlk, beginBlk)
b.SetBlock(allocBlk)
frame := b.OffsetPtr(promise, promiseSize)
b.Jump(beginBlk)
b.SetBlock(beginBlk)
phi := b.Phi(b.Prog.VoidPtr())
phi.SetName("frame")
phi.AddIncoming(b, []BasicBlock{entryBlk, allocBlk}, func(i int, blk BasicBlock) Expr {
if i == 0 {
return null
}
return frame
})
hdl := b.CoBegin(id, phi.Expr)
hdl.SetName("hdl")
b.Store(promise, hdl)
b.SetBlock(cleanBlk)
b.CoFree(id, hdl)
b.Jump(suspdBlk)
b.SetBlock(suspdBlk)
b.CoEnd(hdl, b.Prog.BoolVal(false), b.Prog.TokenNone())
b.Return(promise)
b.SetBlock(trapBlk)
b.LLVMTrap()
b.Unreachable()
b.onSuspBlk = func(nextBlk BasicBlock) (BasicBlock, BasicBlock, BasicBlock) {
if nextBlk == nil {
nextBlk = trapBlk
}
return suspdBlk, nextBlk, cleanBlk
}
b.onReturn = func() {
b.CoSuspend(b.asyncToken, b.Prog.BoolVal(true), trapBlk)
}
}
// -----------------------------------------------------------------------------
// declare void @llvm.coro.destroy(ptr <handle>)
func (b Builder) CoDestroy(hdl Expr) {
fn := b.Pkg.cFunc("llvm.coro.destroy", b.Prog.tyCoDestroy())
b.Call(fn, hdl)
}
// declare void @llvm.coro.resume(ptr <handle>)
func (b Builder) CoResume(hdl Expr) {
fn := b.Pkg.cFunc("llvm.coro.resume", b.Prog.tyCoResume())
b.Call(fn, hdl)
}
// declare i1 @llvm.coro.done(ptr <handle>)
func (b Builder) coDone(hdl Expr) Expr {
fn := b.Pkg.cFunc("llvm.coro.done", b.Prog.tyCoDone())
return b.Call(fn, hdl)
}
// return c.Char
func (b Builder) CoDone(hdl Expr) Expr {
bvar := b.coDone(hdl)
// TODO(lijie): inefficient
// %6 = zext i1 %5 to i64
// %7 = trunc i64 %6 to i8
return b.valFromData(b.Prog.Byte(), bvar.impl)
}
// declare ptr @llvm.coro.promise(ptr <ptr>, i32 <alignment>, i1 <from>)
func (b Builder) CoPromise(ptr, align, from Expr) Expr {
fn := b.Pkg.cFunc("llvm.coro.promise", b.Prog.tyCoPromise())
return b.Call(fn, ptr, align, from)
}
// declare i32 @llvm.coro.size.i32()
func (b Builder) CoSizeI32() Expr {
fn := b.Pkg.cFunc("llvm.coro.size.i32", b.Prog.tyCoSizeI32())
return b.Call(fn)
}
// declare i64 @llvm.coro.size.i64()
func (b Builder) CoSizeI64() Expr {
fn := b.Pkg.cFunc("llvm.coro.size.i64", b.Prog.tyCoSizeI64())
return b.Call(fn)
}
// declare i32 @llvm.coro.align.i32()
func (b Builder) CoAlignI32() Expr {
fn := b.Pkg.cFunc("llvm.coro.align.i32", b.Prog.tyCoAlignI32())
return b.Call(fn)
}
// declare i64 @llvm.coro.align.i64()
func (b Builder) CoAlignI64() Expr {
fn := b.Pkg.cFunc("llvm.coro.align.i64", b.Prog.tyCoAlignI64())
return b.Call(fn)
}
// declare ptr @llvm.coro.begin(token <id>, ptr <mem>)
func (b Builder) CoBegin(id, mem Expr) Expr {
fn := b.Pkg.cFunc("llvm.coro.begin", b.Prog.tyCoBegin())
return b.Call(fn, id, mem)
}
// declare ptr @llvm.coro.free(token %id, ptr <frame>)
func (b Builder) CoFree(id, frame Expr) Expr {
fn := b.Pkg.cFunc("llvm.coro.free", b.Prog.tyCoFree())
return b.Call(fn, id, frame)
}
// declare i1 @llvm.coro.alloc(token <id>)
func (b Builder) CoAlloc(id Expr) Expr {
fn := b.Pkg.cFunc("llvm.coro.alloc", b.Prog.tyCoAlloc())
return b.Call(fn, id)
}
// declare ptr @llvm.coro.noop()
func (b Builder) CoNoop() Expr {
fn := b.Pkg.cFunc("llvm.coro.noop", b.Prog.tyCoNoop())
return b.Call(fn)
}
// declare ptr @llvm.coro.frame()
func (b Builder) CoFrame() Expr {
fn := b.Pkg.cFunc("llvm.coro.frame", b.Prog.tyCoFrame())
return b.Call(fn)
}
// declare token @llvm.coro.id(i32 <align>, ptr <promise>, ptr <coroaddr>, ptr <fnaddrs>)
func (b Builder) CoID(align Expr, promise, coroAddr, fnAddrs Expr) Expr {
if align.Type != b.Prog.Int32() {
panic("align must be i32")
}
fn := b.Pkg.cFunc("llvm.coro.id", b.Prog.tyCoID())
return b.Call(fn, align, promise, coroAddr, fnAddrs)
}
/*
// declare token @llvm.coro.id.async(i32 <context size>, i32 <align>, ptr <context arg>, ptr <async function pointer>)
func (b Builder) CoIDAsync(contextSize, align, contextArg, asyncFnPtr Expr) Expr {
if contextSize.Type != b.Prog.Int32() {
panic("contextSize must be i32")
}
if align.Type != b.Prog.Int32() {
panic("align must be i32")
}
fn := b.Pkg.cFunc("llvm.coro.id.async", b.Prog.tyCoIDAsync())
return b.Call(fn, contextSize, align, contextArg, asyncFnPtr)
}
// declare token @llvm.coro.id.retcon(i32 <size>, i32 <align>, ptr <buffer>, ptr <continuation prototype>, ptr <alloc>, ptr <dealloc>)
func (b Builder) CoIDRetcon(size, align, buffer, contProto, alloc, dealloc Expr) Expr {
fn := b.Pkg.cFunc("llvm.coro.id.retcon", b.Prog.tyCoIDRetcon())
return b.Call(fn, size, align, buffer, contProto, alloc, dealloc)
}
// declare token @llvm.coro.id.retcon.once(i32 <size>, i32 <align>, ptr <buffer>, ptr <prototype>, ptr <alloc>, ptr <dealloc>)
func (b Builder) CoIDRetconOnce(size, align, buffer, prototype, alloc, dealloc Expr) Expr {
fn := b.Pkg.cFunc("llvm.coro.id.retcon.once", b.Prog.tyCoIDRetconOnce())
return b.Call(fn, size, align, buffer, prototype, alloc, dealloc)
}
*/
// declare i1 @llvm.coro.end(ptr <handle>, i1 <unwind>, token <result.token>)
func (b Builder) CoEnd(hdl Expr, unwind Expr, resultToken Expr) Expr {
fn := b.Pkg.cFunc("llvm.coro.end", b.Prog.tyCoEnd())
return b.Call(fn, hdl, unwind, resultToken)
}
/*
// declare token @llvm.coro.end.results(...)
func (b Builder) CoEndResults(args []Expr) Expr {
fn := b.Pkg.cFunc("llvm.coro.end.results", b.Prog.tyCoEndResults())
return b.Call(fn, args...)
}
// declare i1 @llvm.coro.end.async(ptr <handle>, i1 <unwind>, ...)
func (b Builder) CoEndAsync(handle, unwind Expr, args ...Expr) Expr {
fn := b.Pkg.cFunc("llvm.coro.end.async", b.Prog.tyCoEndAsync())
vargs := append([]Expr{handle, unwind}, args...)
return b.Call(fn, vargs...)
}
*/
// declare i8 @llvm.coro.suspend(token <save>, i1 <final>)
func (b Builder) coSuspend(save, final Expr) Expr {
fn := b.Pkg.cFunc("llvm.coro.suspend", b.Prog.tyCoSuspend())
return b.Call(fn, save, final)
}
func (b Builder) CoSuspend(save, final Expr, nextBlk BasicBlock) {
if !b.async {
panic(fmt.Errorf("suspend %v not in async block", b.Func.Name()))
}
if nextBlk == nil {
b.Func.MakeBlock("")
nextBlk = b.Func.Block(b.blk.idx + 1)
}
ret := b.coSuspend(save, final)
susp, next, clean := b.onSuspBlk(nextBlk)
swt := b.Switch(ret, susp)
swt.Case(b.Const(constant.MakeInt64(0), b.Prog.Byte()), next)
swt.Case(b.Const(constant.MakeInt64(1), b.Prog.Byte()), clean)
swt.End(b)
b.SetBlock(nextBlk)
}
func (b Builder) CoReturn(setValueFn Function, value Expr) {
if !b.async {
panic(fmt.Errorf("return %v not in async block", b.Func.Name()))
}
b.Call(setValueFn.Expr, b.promise, value)
_, _, cleanBlk := b.onSuspBlk(nil)
b.Jump(cleanBlk)
}
func (b Builder) CoYield(setValueFn Function, value Expr, final Expr) {
if !b.async {
panic(fmt.Errorf("yield %v not in async block", b.Func.Name()))
}
b.Call(setValueFn.Expr, b.promise, value)
b.CoSuspend(b.AsyncToken(), final, nil)
}
/*
// declare token @llvm.coro.save(ptr <handle>)
func (b Builder) CoSave(hdl Expr) Expr {
fn := b.Pkg.cFunc("llvm.coro.save", b.Prog.tyCoSave())
return b.Call(fn, hdl)
}
// declare ptr @llvm.coro.prepare.async(ptr <coroutine function>)
func (b Builder) CoPrepareAsync(f Expr) Expr {
fn := b.Pkg.cFunc("llvm.coro.prepare.async", b.Prog.tyCoPrepareAsync())
return b.Call(fn, f)
}
// declare i1 @llvm.coro.suspend.retcon(...)
func (b Builder) CoSuspendRetcon(args []Expr) Expr {
fn := b.Pkg.cFunc("llvm.coro.suspend.retcon", b.Prog.tyCoSuspendRetcon())
return b.Call(fn, args...)
}
// declare void @llvm.coro.await.suspend.void(ptr <awaiter>, ptr <handle>, ptr <await_suspend_function>)
func (b Builder) CoAwaitSuspendVoid(awaiter, handle, f Expr) {
fn := b.Pkg.cFunc("llvm.coro.await.suspend.void", b.Prog.tyCoAwaitSuspendVoid())
b.Call(fn, awaiter, handle, f)
}
// declare i1 @llvm.coro.await.suspend.bool(ptr <awaiter>, ptr <handle>, ptr <await_suspend_function>)
func (b Builder) CoAwaitSuspendBool(awaiter, handle, f Expr) Expr {
fn := b.Pkg.cFunc("llvm.coro.await.suspend.bool", b.Prog.tyCoAwaitSuspendBool())
return b.Call(fn, awaiter, handle, f)
}
// declare void @llvm.coro.await.suspend.handle(ptr <awaiter>, ptr <handle>, ptr <await_suspend_function>)
func (b Builder) CoAwaitSuspendHandle(awaiter, handle, f Expr) {
fn := b.Pkg.cFunc("llvm.coro.await.suspend.handle", b.Prog.tyCoAwaitSuspendHandle())
b.Call(fn, awaiter, handle, f)
}
*/

21
ssa/decl.go
View File

@@ -180,11 +180,11 @@ type Function = *aFunction
// NewFunc creates a new function.
func (p Package) NewFunc(name string, sig *types.Signature, bg Background) Function {
return p.NewFuncEx(name, sig, bg, false)
return p.NewFuncEx(name, sig, bg, false, false)
}
// NewFuncEx creates a new function.
func (p Package) NewFuncEx(name string, sig *types.Signature, bg Background, hasFreeVars bool) Function {
func (p Package) NewFuncEx(name string, sig *types.Signature, bg Background, hasFreeVars, async bool) Function {
if v, ok := p.fns[name]; ok {
return v
}
@@ -193,6 +193,9 @@ func (p Package) NewFuncEx(name string, sig *types.Signature, bg Background, has
log.Println("NewFunc", name, t.raw.Type, "hasFreeVars:", hasFreeVars)
}
fn := llvm.AddFunction(p.mod, name, t.ll)
if async {
fn.AddFunctionAttr(p.Prog.ctx.CreateStringAttribute("presplitcoroutine", ""))
}
ret := newFunction(fn, t, p, p.Prog, hasFreeVars)
p.fns[name] = ret
return ret
@@ -268,7 +271,7 @@ func (p Function) NewBuilder() Builder {
b := prog.ctx.NewBuilder()
// TODO(xsw): Finalize may cause panic, so comment it.
// b.Finalize()
return &aBuilder{b, nil, p, p.Pkg, prog}
return &aBuilder{impl: b, blk: nil, Func: p, Pkg: p.Pkg, Prog: prog}
}
// HasBody reports whether the function has a body.
@@ -293,13 +296,15 @@ func (p Function) MakeBlocks(nblk int) []BasicBlock {
p.blks = make([]BasicBlock, 0, nblk)
}
for i := 0; i < nblk; i++ {
p.addBlock(n + i)
p.addBlock(n+i, "")
}
return p.blks[n:]
}
func (p Function) addBlock(idx int) BasicBlock {
label := "_llgo_" + strconv.Itoa(idx)
func (p Function) addBlock(idx int, label string) BasicBlock {
if label == "" {
label = "_llgo_" + strconv.Itoa(idx)
}
blk := llvm.AddBasicBlock(p.impl, label)
ret := &aBasicBlock{blk, blk, p, idx}
p.blks = append(p.blks, ret)
@@ -307,8 +312,8 @@ func (p Function) addBlock(idx int) BasicBlock {
}
// MakeBlock creates a new basic block for the function.
func (p Function) MakeBlock() BasicBlock {
return p.addBlock(len(p.blks))
func (p Function) MakeBlock(label string) BasicBlock {
return p.addBlock(len(p.blks), label)
}
// Block returns the ith basic block of the function.

16
ssa/eh.go
View File

@@ -55,6 +55,13 @@ func (p Program) tySiglongjmp() *types.Signature {
return p.sigljmpTy
}
func (p Program) tyLLVMTrap() *types.Signature {
if p.llvmTrapTy == nil {
p.llvmTrapTy = types.NewSignatureType(nil, nil, nil, nil, nil, false)
}
return p.llvmTrapTy
}
func (b Builder) AllocaSigjmpBuf() Expr {
prog := b.Prog
n := unsafe.Sizeof(sigjmpbuf{})
@@ -77,6 +84,11 @@ func (b Builder) Siglongjmp(jb, retval Expr) {
// b.Unreachable()
}
func (b Builder) LLVMTrap() {
fn := b.Pkg.cFunc("llvm.trap", b.Prog.tyLLVMTrap())
b.Call(fn)
}
// -----------------------------------------------------------------------------
const (
@@ -166,7 +178,7 @@ func (b Builder) getDefer(kind DoAction) *aDefer {
czero := prog.IntVal(0, prog.CInt())
retval := b.Sigsetjmp(jb, czero)
if kind != DeferAlways {
panicBlk = self.MakeBlock()
panicBlk = self.MakeBlock("")
} else {
blks = self.MakeBlocks(2)
next, panicBlk = blks[0], blks[1]
@@ -240,7 +252,7 @@ func (b Builder) Defer(kind DoAction, fn Expr, args ...Expr) {
// RunDefers emits instructions to run deferred instructions.
func (b Builder) RunDefers() {
self := b.getDefer(DeferInCond)
blk := b.Func.MakeBlock()
blk := b.Func.MakeBlock("")
self.rundsNext = append(self.rundsNext, blk)
b.Store(self.rundPtr, blk.Addr())

5
ssa/expr.go
View File

@@ -59,6 +59,11 @@ func (v Expr) SetOrdering(ordering AtomicOrdering) Expr {
return v
}
func (v Expr) SetName(name string) Expr {
v.impl.SetName(name)
return v
}
// -----------------------------------------------------------------------------
type builtinTy struct {

7
ssa/memory.go
View File

@@ -232,6 +232,13 @@ func (b Builder) ArrayAlloca(telem Type, n Expr) (ret Expr) {
return
}
func (b Builder) OffsetPtr(ptr, offset Expr) Expr {
if debugInstr {
log.Printf("OffsetPtr %v, %v\n", ptr.impl, offset.impl)
}
return Expr{llvm.CreateGEP(b.impl, ptr.Type.ll, ptr.impl, []llvm.Value{offset.impl}), ptr.Type}
}
/* TODO(xsw):
// ArrayAlloc allocates zero initialized space for an array of n elements of type telem.
func (b Builder) ArrayAlloc(telem Type, n Expr) (ret Expr) {

87
ssa/package.go
View File

@@ -19,8 +19,10 @@ package ssa
import (
"go/token"
"go/types"
"regexp"
"runtime"
"strconv"
"strings"
"unsafe"
"github.com/goplus/llgo/ssa/abi"
@@ -136,6 +138,8 @@ type aProgram struct {
rtMapTy llvm.Type
rtChanTy llvm.Type
tokenType llvm.Type
anyTy Type
voidTy Type
voidPtr Type
@@ -166,6 +170,8 @@ type aProgram struct {
deferTy Type
deferPtr Type
tokenTy Type
pyImpTy *types.Signature
pyNewList *types.Signature
pyListSetI *types.Signature
@@ -189,6 +195,41 @@ type aProgram struct {
sigsetjmpTy *types.Signature
sigljmpTy *types.Signature
llvmTrapTy *types.Signature
// coroutine manipulation intrinsics (ordered by LLVM coroutine doc)
coDestroyTy *types.Signature
coResumeTy *types.Signature
coDoneTy *types.Signature
coPromiseTy *types.Signature
// coroutine structure intrinsics (ordered by LLVM coroutine doc)
coSizeI32Ty *types.Signature
coSizeI64Ty *types.Signature
coAlignI32Ty *types.Signature
coAlignI64Ty *types.Signature
coBeginTy *types.Signature
coFreeTy *types.Signature
coAllocTy *types.Signature
coNoopTy *types.Signature
coFrameTy *types.Signature
coIDTy *types.Signature
// coIDAsyncTy *types.Signature
// coIDRetconTy *types.Signature
// coIDRetconOnceTy *types.Signature
coEndTy *types.Signature
// coEndResultsTy *types.Signature
// coEndAsyncTy *types.Signature
coSuspendTy *types.Signature
// coSaveTy *types.Signature
// coSuspendAsyncTy *types.Signature
// coPrepareAsyncTy *types.Signature
// coSuspendRetconTy *types.Signature
// coAwaitSuspendFunctionTy *types.Signature
// coAwaitSuspendVoidTy *types.Signature
// coAwaitSuspendBoolTy *types.Signature
// coAwaitSuspendHandleTy *types.Signature
paramObjPtr_ *types.Var
ptrSize int
@@ -441,6 +482,18 @@ func (p Program) Any() Type {
return p.anyTy
}
func (p Program) Token() Type {
if p.tokenTy == nil {
p.tokenTy = &aType{p.tyToken(), rawType{types.Typ[types.Invalid]}, vkInvalid}
}
return p.tokenTy
}
func (p Program) TokenNone() Expr {
impl := llvm.ConstNull(p.Token().ll)
return Expr{impl: impl, Type: p.Token()}
}
/*
// Eface returns the empty interface type.
// It is equivalent to Any.
@@ -649,9 +702,41 @@ func (p Package) Path() string {
return p.abi.Pkg
}
// Find presplitcoroutine attribute and replace attribute tag with it
// e.g. attributes #0 = { noinline nounwind readnone "presplitcoroutine" }
// replace #0 with presplitcoroutine
// and also remove all other attributes
func removeLLVMAttributes(ll string) string {
attrRe := regexp.MustCompile(`^attributes (#\d+) = {[^}]*}$`)
attrRe2 := regexp.MustCompile(`(\) #\d+ {|\) #\d+)$`)
lines := strings.Split(ll, "\n")
newLines := make([]string, 0, len(lines))
presplitcoroutine := ""
for _, line := range lines {
if m := attrRe.FindStringSubmatch(line); m != nil {
if strings.Contains(line, "\"presplitcoroutine\"") {
presplitcoroutine = " " + m[1] + " "
}
} else {
newLines = append(newLines, line)
}
}
for i, line := range newLines {
if presplitcoroutine != "" {
line = strings.Replace(line, presplitcoroutine, " presplitcoroutine ", 1)
}
line = attrRe2.ReplaceAllString(line, ")")
newLines[i] = line
}
return strings.Join(newLines, "\n")
}
// String returns a string representation of the package.
func (p Package) String() string {
return p.mod.String()
// TODO(lijie): workaround for compiling errors of LLVM attributes
return removeLLVMAttributes(p.mod.String())
}
// SetPatch sets a patch function.

232
ssa/ssa_test.go
View File

@@ -469,6 +469,47 @@ _llgo_0:
`)
}
func TestSwitch(t *testing.T) {
prog := NewProgram(nil)
pkg := prog.NewPackage("bar", "foo/bar")
params := types.NewTuple(types.NewVar(0, nil, "a", types.Typ[types.Int]))
rets := types.NewTuple(types.NewVar(0, nil, "", types.Typ[types.Int]))
sig := types.NewSignatureType(nil, nil, nil, params, rets, false)
fn := pkg.NewFunc("fn", sig, InGo)
b := fn.MakeBody(4)
cond := fn.Param(0)
case1 := fn.Block(1)
case2 := fn.Block(2)
defb := fn.Block(3)
swc := b.Switch(cond, defb)
swc.Case(prog.Val(1), case1)
swc.Case(prog.Val(2), case2)
swc.End(b)
b.SetBlock(case1).Return(prog.Val(3))
b.SetBlock(case2).Return(prog.Val(4))
b.SetBlock(defb).Return(prog.Val(5))
assertPkg(t, pkg, `; ModuleID = 'foo/bar'
source_filename = "foo/bar"
define i64 @fn(i64 %0) {
_llgo_0:
switch i64 %0, label %_llgo_3 [
i64 1, label %_llgo_1
i64 2, label %_llgo_2
]
_llgo_1: ; preds = %_llgo_0
ret i64 3
_llgo_2: ; preds = %_llgo_0
ret i64 4
_llgo_3: ; preds = %_llgo_0
ret i64 5
}
`)
}
func TestUnOp(t *testing.T) {
prog := NewProgram(nil)
pkg := prog.NewPackage("bar", "foo/bar")
@@ -552,3 +593,194 @@ _llgo_0:
}
`)
}
func TestPointerOffset(t *testing.T) {
prog := NewProgram(nil)
pkg := prog.NewPackage("bar", "foo/bar")
params := types.NewTuple(
types.NewVar(0, nil, "p", types.NewPointer(types.Typ[types.Int])),
types.NewVar(0, nil, "offset", types.Typ[types.Int]),
)
rets := types.NewTuple(types.NewVar(0, nil, "", types.NewPointer(types.Typ[types.Int])))
sig := types.NewSignatureType(nil, nil, nil, params, rets, false)
fn := pkg.NewFunc("fn", sig, InGo)
b := fn.MakeBody(1)
ptr := fn.Param(0)
offset := fn.Param(1)
result := b.OffsetPtr(ptr, offset)
b.Return(result)
assertPkg(t, pkg, `; ModuleID = 'foo/bar'
source_filename = "foo/bar"
define ptr @fn(ptr %0, i64 %1) {
_llgo_0:
%2 = getelementptr ptr, ptr %0, i64 %1
ret ptr %2
}
`)
}
func TestLLVMTrap(t *testing.T) {
prog := NewProgram(nil)
pkg := prog.NewPackage("bar", "foo/bar")
b := pkg.NewFunc("fn", NoArgsNoRet, InGo).MakeBody(1)
b.LLVMTrap()
b.Unreachable()
assertPkg(t, pkg, `; ModuleID = 'foo/bar'
source_filename = "foo/bar"
define void @fn() {
_llgo_0:
call void @llvm.trap()
unreachable
}
; Function Attrs: cold noreturn nounwind memory(inaccessiblemem: write)
declare void @llvm.trap()
`)
}
func TestCoroFuncs(t *testing.T) {
prog := NewProgram(nil)
pkg := prog.NewPackage("bar", "foo/bar")
fn := pkg.NewFunc("fn", NoArgsNoRet, InGo)
entryBlk := fn.MakeBlock("entry")
suspdBlk := fn.MakeBlock("suspend")
cleanBlk := fn.MakeBlock("clean")
b := fn.NewBuilder()
b.async = true
b.SetBlock(entryBlk)
align := b.Const(constant.MakeInt64(0), prog.Int32())
align8 := b.Const(constant.MakeInt64(8), prog.Int32())
null := b.Const(nil, b.Prog.CIntPtr())
b.promise = null
id := b.CoID(align, null, null, null)
bf := b.Const(constant.MakeBool(false), prog.Bool())
b.CoSizeI32()
size := b.CoSizeI64()
b.CoAlignI32()
b.CoAlignI64()
b.CoAlloc(id)
frame := b.Alloca(size)
hdl := b.CoBegin(id, frame)
b.SetBlock(cleanBlk)
b.CoFree(id, frame)
b.Jump(suspdBlk)
b.SetBlock(suspdBlk)
b.CoEnd(hdl, bf, prog.TokenNone())
// b.Return(b.promise)
b.SetBlock(entryBlk)
b.CoResume(hdl)
b.CoDone(hdl)
b.CoDestroy(hdl)
b.CoPromise(null, align8, bf)
b.CoNoop()
b.CoFrame()
setArgs := types.NewTuple(types.NewVar(0, nil, "value", types.Typ[types.Int]))
setSig := types.NewSignatureType(nil, nil, nil, setArgs, nil, false)
setFn := pkg.NewFunc("setValue", setSig, InGo)
one := b.Const(constant.MakeInt64(1), prog.Int())
b.onSuspBlk = func(next BasicBlock) (BasicBlock, BasicBlock, BasicBlock) {
return suspdBlk, next, cleanBlk
}
b.CoYield(setFn, one, bf)
b.CoReturn(setFn, one)
assertPkg(t, pkg, `; ModuleID = 'foo/bar'
source_filename = "foo/bar"
define void @fn() {
entry:
%0 = call token @llvm.coro.id(i32 0, ptr null, ptr null, ptr null)
%1 = call i32 @llvm.coro.size.i32()
%2 = call i64 @llvm.coro.size.i64()
%3 = call i32 @llvm.coro.align.i32()
%4 = call i64 @llvm.coro.align.i64()
%5 = call i1 @llvm.coro.alloc(token %0)
%6 = alloca i8, i64 %2, align 1
%7 = call ptr @llvm.coro.begin(token %0, ptr %6)
call void @llvm.coro.resume(ptr %7)
%8 = call i1 @llvm.coro.done(ptr %7)
%9 = zext i1 %8 to i64
%10 = trunc i64 %9 to i8
call void @llvm.coro.destroy(ptr %7)
%11 = call ptr @llvm.coro.promise(ptr null, i32 8, i1 false)
%12 = call ptr @llvm.coro.noop()
%13 = call ptr @llvm.coro.frame()
call void @setValue(ptr null, i64 1)
%14 = call i8 @llvm.coro.suspend(<null operand!>, i1 false)
switch i8 %14, label %suspend [
i8 0, label %suspend
i8 1, label %clean
]
suspend: ; preds = %entry, %entry, %clean
%15 = call i1 @llvm.coro.end(ptr %7, i1 false, token none)
call void @setValue(ptr null, i64 1)
br label %clean
clean: ; preds = %suspend, %entry
%16 = call ptr @llvm.coro.free(token %0, ptr %6)
br label %suspend
_llgo_3: ; No predecessors!
}
; Function Attrs: nocallback nofree nosync nounwind willreturn memory(argmem: read)
declare token @llvm.coro.id(i32, ptr readnone, ptr nocapture readonly, ptr)
; Function Attrs: nounwind memory(none)
declare i32 @llvm.coro.size.i32()
; Function Attrs: nounwind memory(none)
declare i64 @llvm.coro.size.i64()
; Function Attrs: nounwind memory(none)
declare i32 @llvm.coro.align.i32()
; Function Attrs: nounwind memory(none)
declare i64 @llvm.coro.align.i64()
; Function Attrs: nounwind
declare i1 @llvm.coro.alloc(token)
; Function Attrs: nounwind
declare ptr @llvm.coro.begin(token, ptr writeonly)
; Function Attrs: nounwind memory(argmem: read)
declare ptr @llvm.coro.free(token, ptr nocapture readonly)
; Function Attrs: nounwind
declare i1 @llvm.coro.end(ptr, i1, token)
declare void @llvm.coro.resume(ptr)
; Function Attrs: nounwind memory(argmem: readwrite)
declare i1 @llvm.coro.done(ptr nocapture readonly)
declare void @llvm.coro.destroy(ptr)
; Function Attrs: nounwind memory(none)
declare ptr @llvm.coro.promise(ptr nocapture, i32, i1)
; Function Attrs: nounwind memory(none)
declare ptr @llvm.coro.noop()
; Function Attrs: nounwind memory(none)
declare ptr @llvm.coro.frame()
declare void @setValue(i64)
; Function Attrs: nounwind
declare i8 @llvm.coro.suspend(token, i1)
`)
}

13
ssa/stmt_builder.go
View File

@@ -63,6 +63,13 @@ type aBuilder struct {
Func Function
Pkg Package
Prog Program
async bool
asyncToken Expr
promise Expr
onSuspBlk func(blk BasicBlock) (susp BasicBlock, next BasicBlock, clean BasicBlock)
onReturn func()
blkOffset int
}
// Builder represents a builder for creating instructions in a function.
@@ -94,7 +101,7 @@ func (b Builder) setBlockMoveLast(blk BasicBlock) (next BasicBlock) {
impl := b.impl
next = b.Func.MakeBlock()
next = b.Func.MakeBlock("")
impl.SetInsertPointAtEnd(next.last)
impl.Insert(last)
@@ -288,7 +295,7 @@ func (b Builder) Times(n Expr, loop func(i Expr)) {
}
// -----------------------------------------------------------------------------
/*
type caseStmt struct {
v llvm.Value
blk llvm.BasicBlock
@@ -326,7 +333,7 @@ func (b Builder) Switch(v Expr, defb BasicBlock) Switch {
}
return &aSwitch{v.impl, defb.first, nil}
}
*/
// -----------------------------------------------------------------------------
// Phi represents a phi node.

14
ssa/type.go
View File

@@ -58,6 +58,7 @@ const (
vkIface
vkStruct
vkChan
vkToken
)
// -----------------------------------------------------------------------------
@@ -282,6 +283,13 @@ func (p Program) tyInt() llvm.Type {
return p.intType
}
func (p Program) tyToken() llvm.Type {
if p.tokenType.IsNil() {
p.tokenType = p.ctx.TokenType()
}
return p.tokenType
}
func llvmIntType(ctx llvm.Context, size int) llvm.Type {
if size <= 4 {
return ctx.Int32Type()
@@ -362,6 +370,9 @@ func (p Program) toType(raw types.Type) Type {
return &aType{p.rtString(), typ, vkString}
case types.UnsafePointer:
return &aType{p.tyVoidPtr(), typ, vkPtr}
// TODO(lijie): temporary solution, should be replaced by a proper type
case types.Invalid:
return &aType{p.tyToken(), typ, vkInvalid}
}
case *types.Pointer:
elem := p.rawType(t.Elem())
@@ -444,7 +455,8 @@ func (p Program) toLLVMTypes(t *types.Tuple, n int) (ret []llvm.Type) {
if n > 0 {
ret = make([]llvm.Type, n)
for i := 0; i < n; i++ {
ret[i] = p.rawType(t.At(i).Type()).ll
pt := t.At(i)
ret[i] = p.rawType(pt.Type()).ll
}
}
return

0
x/io/README.md → x/async/README.md
View File

229
x/async/_demo/asyncdemo/asyncdemo.go Normal file
View File

@@ -0,0 +1,229 @@
package main
import (
"encoding/json"
"fmt"
"log"
"strings"
"time"
"github.com/goplus/llgo/x/async"
"github.com/goplus/llgo/x/tuple"
)
// -----------------------------------------------------------------------------
func http(method string, url string, callback func(resp *Response, err error)) {
go func() {
body := ""
if strings.HasPrefix(url, "http://example.com/user/") {
name := url[len("http://example.com/user/"):]
body = `{"name":"` + name + `"}`
} else if strings.HasPrefix(url, "http://example.com/score/") {
body = "99.5"
}
time.Sleep(200 * time.Millisecond)
resp := &Response{StatusCode: 200, Body: body}
callback(resp, nil)
}()
}
// -----------------------------------------------------------------------------
type Response struct {
StatusCode int
Body string
}
func (r *Response) Text() (co async.Promise[tuple.Tuple2[string, error]]) {
co.Return(tuple.Tuple2[string, error]{V1: r.Body, V2: nil})
return
}
// async AsyncHttpGet(url string) (resp *Response, err error) {
// http("GET", url, func(resp *Response, err error) {
// return resp, err
// })
// }
func AsyncHttpGet(url string) (co async.Promise[tuple.Tuple2[*Response, error]]) {
return co.Async(func(resolve func(tuple.Tuple2[*Response, error])) {
http("GET", url, func(resp *Response, err error) {
resolve(tuple.Tuple2[*Response, error]{V1: resp, V2: nil})
})
})
}
func AsyncHttpPost(url string) (co async.Promise[tuple.Tuple2[*Response, error]]) {
http("POST", url, func(resp *Response, err error) {
// co.Return(tuple.Tuple2[*Response, error]{V1: resp, V2: nil})
})
co.Suspend()
return
}
// -----------------------------------------------------------------------------
type User struct {
Name string
}
func GetUser(name string) (co async.Promise[tuple.Tuple2[User, error]]) {
resp, err := AsyncHttpGet("http://example.com/user/" + name).Await().Values()
if err != nil {
// return User{}, err
co.Return(tuple.Tuple2[User, error]{V1: User{}, V2: err})
return
}
if resp.StatusCode != 200 {
// return User{}, fmt.Errorf("http status code: %d", resp.StatusCode)
co.Return(tuple.Tuple2[User, error]{V1: User{}, V2: fmt.Errorf("http status code: %d", resp.StatusCode)})
return
}
body, err := resp.Text().Await().Values()
if err != nil {
// return User{}, err
co.Return(tuple.Tuple2[User, error]{V1: User{}, V2: err})
return
}
user := User{}
if err := json.Unmarshal([]byte(body), &user); err != nil {
// return User{}, err
co.Return(tuple.Tuple2[User, error]{V1: User{}, V2: err})
return
}
// return user, nil
co.Return(tuple.Tuple2[User, error]{V1: user, V2: nil})
return
}
func GetScore() (co *async.Promise[tuple.Tuple2[float64, error]]) {
resp, err := AsyncHttpGet("http://example.com/score/").Await().Values()
if err != nil {
co.Return(tuple.Tuple2[float64, error]{V1: 0, V2: err})
return
}
if resp.StatusCode != 200 {
// return 0, fmt.Errorf("http status code: %d", resp.StatusCode)
co.Return(tuple.Tuple2[float64, error]{V1: 0, V2: fmt.Errorf("http status code: %d", resp.StatusCode)})
return
}
body, err := resp.Text().Await().Values()
if err != nil {
// return 0, err
co.Return(tuple.Tuple2[float64, error]{V1: 0, V2: err})
return
}
score := 0.0
if _, err := fmt.Sscanf(body, "%f", &score); err != nil {
// return 0, err
co.Return(tuple.Tuple2[float64, error]{V1: 0, V2: err})
return
}
// return score, nil
co.Return(tuple.Tuple2[float64, error]{V1: score, V2: nil})
return
}
func DoUpdate(op string) (co *async.Promise[error]) {
resp, err := AsyncHttpPost("http://example.com/update/" + op).Await().Values()
if err != nil {
co.Return(err)
return
}
if resp.StatusCode != 200 {
co.Return(fmt.Errorf("http status code: %d", resp.StatusCode))
}
co.Return(nil)
return
}
func GenInts() (co *async.Promise[int]) {
co.Yield(3)
co.Yield(2)
co.Yield(5)
return
}
// Generator with async calls and panic
func GenUsers() (co *async.Promise[User]) {
u, err := GetUser("Alice").Await().Values()
if err != nil {
panic(err)
}
co.Yield(u)
u, err = GetUser("Bob").Await().Values()
if err != nil {
panic(err)
}
co.Yield(u)
u, err = GetUser("Cindy").Await().Values()
if err != nil {
panic(err)
}
co.Yield(u)
log.Printf("genUsers done\n")
return
}
func Demo() (co *async.Promise[async.Void]) {
user, err := GetUser("1").Await().Values()
log.Println(user, err)
// user, err = naive.Race[tuple.Tuple2[User, error]](GetUser("2"), GetUser("3"), GetUser("4")).Value().Values()
// log.Println(user, err)
// users := naive.All[tuple.Tuple2[User, error]]([]naive.AsyncCall[tuple.Tuple2[User, error]]{GetUser("5"), GetUser("6"), GetUser("7")}).Value()
// log.Println(users, err)
// user, score, _ := naive.Await3Compiled[User, float64, async.Void](GetUser("8"), GetScore(), DoUpdate("update sth.")).Value().Values()
// log.Println(user, score, err)
// for loop with generator
g := GenInts()
for !g.Done() {
log.Println("genInt:", g.Value(), g.Done())
g.Resume()
}
// for loop with async generator
// for u, err := range GenUsers() {...}
g1 := GenUsers()
for !g1.Done() {
u := g1.Value()
log.Println("genUser:", u)
g1.Resume()
}
// TODO(lijie): select from multiple promises without channel
// select {
// case user := <-GetUser("123").Chan():
// log.Println("user:", user)
// case score := <-GetScore().Chan():
// log.Println("score:", score)
// case <-async.Timeout(5 * time.Second).Chan():
// log.Println("timeout")
// }
log.Println("Demo done")
co.Return(async.Void{})
return
}
func main() {
log.SetFlags(log.Lshortfile | log.LstdFlags)
log.Printf("=========== Run Demo ===========\n")
v1 := Demo()
log.Println(v1)
log.Printf("=========== Run Demo finished ===========\n")
}

26
x/async/_demo/gendemo/gendemo.go Normal file
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package main
import (
"fmt"
"github.com/goplus/llgo/x/async"
)
func GenInts() (co *async.Promise[int]) {
println("gen: 1")
co.Yield(1)
println("gen: 2")
co.Yield(2)
println("gen: 3")
co.Yield(3)
return
}
func main() {
co := GenInts()
for !co.Done() {
fmt.Printf("got: %v\n", co.Value())
co.Next()
}
fmt.Printf("done\n")
}

77
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/*
* Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package async
import (
"unsafe"
_ "unsafe"
)
const (
LLGoPackage = "decl"
)
type Void = [0]byte
// -----------------------------------------------------------------------------
type Promise[TOut any] struct {
hdl unsafe.Pointer
value TOut
}
// // llgo:link (*Promise).Await llgo.coAwait
func (p *Promise[TOut]) Await() TOut {
panic("should not executed")
}
func (p *Promise[TOut]) Return(v TOut) {
p.value = v
coReturn(p.hdl)
}
// llgo:link (*Promise).Yield llgo.coYield
func (p *Promise[TOut]) Yield(v TOut) {}
// llgo:link (*Promise).Suspend llgo.coSuspend
func (p *Promise[TOut]) Suspend() {}
func (p *Promise[TOut]) Resume() {
coResume(p.hdl)
}
func (p *Promise[TOut]) Next() {
coResume(p.hdl)
}
// TODO(lijie): should merge to Yield()
// call by llgo.coYield
func (p *Promise[TOut]) setValue(v TOut) {
p.value = v
}
func (p *Promise[TOut]) Value() TOut {
return p.value
}
func (p *Promise[TOut]) Done() bool {
return coDone(p.hdl) != 0
}
func Run[TOut any](f func() TOut) TOut {
panic("should not executed")
}

39
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/*
* Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package async
import (
"unsafe"
_ "unsafe"
"github.com/goplus/llgo/c"
)
// llgo:link coDone llgo.coDone
func coDone(hdl unsafe.Pointer) c.Char {
panic("should not executed")
}
// llgo:link coResume llgo.coResume
func coResume(hdl unsafe.Pointer) {
panic("should not executed")
}
// llgo:link coReturn llgo.coReturn
func coReturn(hdl unsafe.Pointer) {
panic("should not executed")
}

290
x/io/_demo/asyncdemo/async.go
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@@ -1,290 +0,0 @@
package main
import (
"encoding/json"
"fmt"
"log"
"time"
"github.com/goplus/llgo/x/io"
)
// -----------------------------------------------------------------------------
type Response struct {
StatusCode int
mockBody string
}
func (r *Response) mock(body string) {
r.mockBody = body
}
func (r *Response) Text() (resolve io.Promise[string]) {
resolve(r.mockBody, nil)
return
}
func (r *Response) TextCompiled() *io.PromiseImpl[string] {
P := &io.PromiseImpl[string]{}
P.Func = func(resolve func(string, error)) {
for {
switch P.Prev = P.Next; P.Prev {
case 0:
resolve(r.mockBody, nil)
P.Next = -1
return
default:
panic("Promise already done")
}
}
}
return P
}
func HttpGet(url string, callback func(resp *Response, err error)) {
resp := &Response{StatusCode: 200}
callback(resp, nil)
}
func AsyncHttpGet(url string) (resolve io.Promise[*Response]) {
HttpGet(url, resolve)
return
}
func AsyncHttpGetCompiled(url string) *io.PromiseImpl[*Response] {
P := &io.PromiseImpl[*Response]{}
P.Func = func(resolve func(*Response, error)) {
for {
switch P.Prev = P.Next; P.Prev {
case 0:
HttpGet(url, resolve)
P.Next = -1
return
default:
panic("Promise already done")
}
}
}
return P
}
// -----------------------------------------------------------------------------
type User struct {
Name string
}
func GetUser(uid string) (resolve io.Promise[User]) {
resp, err := AsyncHttpGet("http://example.com/user/" + uid).Await()
if err != nil {
resolve(User{}, err)
return
}
if resp.StatusCode != 200 {
resolve(User{}, fmt.Errorf("http status code: %d", resp.StatusCode))
return
}
resp.mock(`{"name":"Alice"}`)
body, err := resp.Text().Await()
if err != nil {
resolve(User{}, err)
return
}
user := User{}
if err := json.Unmarshal([]byte(body), &user); err != nil {
resolve(User{}, err)
return
}
resolve(user, nil)
return
}
func GetUserCompiled(uid string) *io.PromiseImpl[User] {
var state1 *io.PromiseImpl[*Response]
var state2 *io.PromiseImpl[string]
P := &io.PromiseImpl[User]{}
P.Func = func(resolve func(User, error)) {
for {
switch P.Prev = P.Next; P.Prev {
case 0:
state1 = AsyncHttpGetCompiled("http://example.com/user/" + uid)
P.Next = 1
return
case 1:
state1.EnsureDone()
resp, err := state1.Value, state1.Err
if err != nil {
resolve(User{}, err)
return
}
if resp.StatusCode != 200 {
resolve(User{}, fmt.Errorf("http status code: %d", resp.StatusCode))
return
}
resp.mock(`{"name":"Alice"}`)
state2 = resp.TextCompiled()
P.Next = 2
return
case 2:
state2.EnsureDone()
body, err := state2.Value, state2.Err
if err != nil {
resolve(User{}, err)
return
}
user := User{}
if err := json.Unmarshal([]byte(body), &user); err != nil {
resolve(User{}, err)
return
}
resolve(user, nil)
P.Next = -1
return
default:
panic("Promise already done")
}
}
}
return P
}
func GetScore() *io.Promise[float64] {
panic("todo: GetScore")
}
func GetScoreCompiled() *io.PromiseImpl[float64] {
P := &io.PromiseImpl[float64]{}
P.Func = func(resolve func(float64, error)) {
for {
switch P.Prev = P.Next; P.Prev {
case 0:
panic("todo: GetScore")
default:
panic("Promise already done")
}
}
}
return P
}
func DoUpdate(op string) *io.Promise[io.Void] {
panic("todo: DoUpdate")
}
func DoUpdateCompiled(op string) *io.PromiseImpl[io.Void] {
P := &io.PromiseImpl[io.Void]{}
P.Func = func(resolve func(io.Void, error)) {
for {
switch P.Prev = P.Next; P.Prev {
case 0:
panic("todo: DoUpdate")
default:
panic("Promise already done")
}
}
}
return P
}
func Demo() (resolve io.Promise[io.Void]) {
user, err := GetUser("123").Await()
log.Println(user, err)
user, err = io.Race[User](GetUser("123"), GetUser("456"), GetUser("789")).Await()
log.Println(user, err)
users, err := io.All[User]([]io.AsyncCall[User]{GetUser("123"), GetUser("456"), GetUser("789")}).Await()
log.Println(users, err)
user, score, _, err := io.Await3[User, float64, io.Void](GetUser("123"), GetScore(), DoUpdate("update sth."))
log.Println(user, score, err)
// TODO(lijie): select from multiple promises without channel
select {
case user := <-GetUser("123").Chan():
log.Println("user:", user)
case score := <-GetScore().Chan():
log.Println("score:", score)
case <-io.Timeout(5 * time.Second).Chan():
log.Println("timeout")
}
return
}
func DemoCompiled() *io.PromiseImpl[io.Void] {
var state1 *io.PromiseImpl[User]
var state2 *io.PromiseImpl[User]
var state3 *io.PromiseImpl[[]User]
var state4 *io.PromiseImpl[io.Await3Result[User, float64, io.Void]]
P := &io.PromiseImpl[io.Void]{}
P.Func = func(resolve func(io.Void, error)) {
for {
switch P.Prev = P.Next; P.Prev {
case 0:
state1 = GetUserCompiled("123")
P.Next = 1
return
case 1:
state1.EnsureDone()
user, err := state1.Value, state1.Err
log.Printf("user: %v, err: %v\n", user, err)
state2 = io.Race[User](GetUserCompiled("123"), GetUserCompiled("456"), GetUserCompiled("789"))
P.Next = 2
return
case 2:
state2.EnsureDone()
user, err := state2.Value, state2.Err
log.Println(user, err)
state3 = io.All[User]([]io.AsyncCall[User]{GetUserCompiled("123"), GetUserCompiled("456"), GetUserCompiled("789")})
P.Next = 3
return
case 3:
state3.EnsureDone()
users, err := state3.Value, state3.Err
log.Println(users, err)
state4 = io.Await3Compiled[User, float64, io.Void](GetUserCompiled("123"), GetScoreCompiled(), DoUpdateCompiled("update sth."))
P.Next = 4
return
case 4:
state4.EnsureDone()
user, score, _, err := state4.Value.V1, state4.Value.V2, state4.Value.V3, state4.Value.Err
log.Println(user, score, err)
select {
case user := <-GetUserCompiled("123").Chan():
log.Println("user:", user)
case score := <-GetScoreCompiled().Chan():
log.Println("score:", score)
case <-io.TimeoutCompiled(5 * time.Second).Chan():
log.Println("timeout")
}
P.Next = -1
return
default:
panic("Promise already done")
}
}
}
return P
}
func main() {
log.SetFlags(log.Lshortfile | log.LstdFlags)
// io.Run(Demo())
io.Run(DemoCompiled())
}

170
x/io/io.go
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@@ -1,170 +0,0 @@
/*
* Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package io
import (
_ "unsafe"
"time"
)
const (
LLGoPackage = "decl"
)
type Void = [0]byte
// -----------------------------------------------------------------------------
type AsyncCall[OutT any] interface {
Await(timeout ...time.Duration) (ret OutT, err error)
Chan() <-chan OutT
EnsureDone()
}
// llgo:link AsyncCall.Await llgo.await
func Await[OutT any](call AsyncCall[OutT], timeout ...time.Duration) (ret OutT, err error) {
return
}
//go:linkname Timeout llgo.timeout
func Timeout(time.Duration) (ret AsyncCall[Void])
func TimeoutCompiled(d time.Duration) *PromiseImpl[Void] {
P := &PromiseImpl[Void]{}
P.Func = func(resolve func(Void, error)) {
go func() {
time.Sleep(d)
resolve(Void{}, nil)
}()
}
return P
}
// llgo:link Race llgo.race
func Race[OutT any](acs ...AsyncCall[OutT]) (ret *PromiseImpl[OutT]) {
return
}
func All[OutT any](acs []AsyncCall[OutT]) (ret *PromiseImpl[[]OutT]) {
return nil
}
// llgo:link Await2 llgo.await
func Await2[OutT1, OutT2 any](
ac1 AsyncCall[OutT1], ac2 AsyncCall[OutT2],
timeout ...time.Duration) (ret1 OutT1, ret2 OutT2, err error) {
return
}
type Await2Result[T1 any, T2 any] struct {
V1 T1
V2 T2
Err error
}
func Await2Compiled[OutT1, OutT2 any](
ac1 AsyncCall[OutT1], ac2 AsyncCall[OutT2],
timeout ...time.Duration) (ret *PromiseImpl[Await2Result[OutT1, OutT2]]) {
return
}
// llgo:link Await3 llgo.await
func Await3[OutT1, OutT2, OutT3 any](
ac1 AsyncCall[OutT1], ac2 AsyncCall[OutT2], ac3 AsyncCall[OutT3],
timeout ...time.Duration) (ret1 OutT1, ret2 OutT2, ret3 OutT3, err error) {
return
}
type Await3Result[T1 any, T2 any, T3 any] struct {
V1 T1
V2 T2
V3 T3
Err error
}
func Await3Compiled[OutT1, OutT2, OutT3 any](
ac1 AsyncCall[OutT1], ac2 AsyncCall[OutT2], ac3 AsyncCall[OutT3],
timeout ...time.Duration) (ret *PromiseImpl[Await3Result[OutT1, OutT2, OutT3]]) {
return
}
func Run(ac AsyncCall[Void]) {
p := ac.(*PromiseImpl[Void])
p.Resume()
<-ac.Chan()
}
// -----------------------------------------------------------------------------
type Promise[OutT any] func(OutT, error)
// llgo:link Promise.Await llgo.await
func (p Promise[OutT]) Await(timeout ...time.Duration) (ret OutT, err error) {
return
}
func (p Promise[OutT]) Chan() <-chan OutT {
return nil
}
func (p Promise[OutT]) EnsureDone() {
}
// -----------------------------------------------------------------------------
type PromiseImpl[TOut any] struct {
Func func(resolve func(TOut, error))
Value TOut
Err error
Prev int
Next int
c chan TOut
}
func (p *PromiseImpl[TOut]) Resume() {
p.Func(func(v TOut, err error) {
p.Value = v
p.Err = err
})
}
func (p *PromiseImpl[TOut]) EnsureDone() {
if p.Next == -1 {
panic("Promise already done")
}
}
func (p *PromiseImpl[TOut]) Chan() <-chan TOut {
if p.c == nil {
p.c = make(chan TOut, 1)
p.Func(func(v TOut, err error) {
p.Value = v
p.Err = err
p.c <- v
})
}
return p.c
}
func (p *PromiseImpl[TOut]) Await(timeout ...time.Duration) (ret TOut, err error) {
panic("should not called")
}
// -----------------------------------------------------------------------------

57
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/*
* Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package tuple
// -----------------------------------------------------------------------------
type Tuple1[T any] struct {
V1 T
}
func (r Tuple1[T]) Values() T {
return r.V1
}
type Tuple2[T1 any, T2 any] struct {
V1 T1
V2 T2
}
func (r Tuple2[T1, T2]) Values() (T1, T2) {
return r.V1, r.V2
}
type Tuple3[T1 any, T2 any, T3 any] struct {
V1 T1
V2 T2
V3 T3
}
func (r Tuple3[T1, T2, T3]) Values() (T1, T2, T3) {
return r.V1, r.V2, r.V3
}
type Tuple4[T1 any, T2 any, T3 any, T4 any] struct {
V1 T1
V2 T2
V3 T3
V4 T4
}
func (r Tuple4[T1, T2, T3, T4]) Values() (T1, T2, T3, T4) {
return r.V1, r.V2, r.V3, r.V4
}