mirror of
https://github.com/golang/go
synced 2024-11-26 07:17:59 -07:00
cmd/compile: emit unified IR wrappers after inlining
This CL delays unified IR's wrapper generation to after inlining. Change-Id: Idfe496663489d6b797a647eb17200c6322d0334a Reviewed-on: https://go-review.googlesource.com/c/go/+/347029 Trust: Matthew Dempsky <mdempsky@google.com> Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
This commit is contained in:
Matthew Dempsky
parent
5e0f8edbdc
commit
50f38d0405
@ -245,6 +245,7 @@ func Main(archInit func(*ssagen.ArchInfo)) {
|
||||
if base.Flag.LowerL != 0 {
|
||||
inline.InlinePackage()
|
||||
}
|
||||
noder.MakeWrappers(typecheck.Target) // must happen after inlining
|
||||
|
||||
// Devirtualize.
|
||||
for _, n := range typecheck.Target.Decls {
|
||||
|
||||
@ -149,7 +149,7 @@ type readerDict struct {
|
||||
funcsObj []ir.Node
|
||||
}
|
||||
|
||||
func (r *reader) setType(n ir.Node, typ *types.Type) {
|
||||
func setType(n ir.Node, typ *types.Type) {
|
||||
n.SetType(typ)
|
||||
n.SetTypecheck(1)
|
||||
|
||||
@ -159,7 +159,7 @@ func (r *reader) setType(n ir.Node, typ *types.Type) {
|
||||
}
|
||||
}
|
||||
|
||||
func (r *reader) setValue(name *ir.Name, val constant.Value) {
|
||||
func setValue(name *ir.Name, val constant.Value) {
|
||||
name.SetVal(val)
|
||||
name.Defn = nil
|
||||
}
|
||||
@ -602,15 +602,15 @@ func (pr *pkgReader) objIdx(idx int, implicits, explicits []*types.Type) ir.Node
|
||||
|
||||
case objAlias:
|
||||
name := do(ir.OTYPE, false)
|
||||
r.setType(name, r.typ())
|
||||
setType(name, r.typ())
|
||||
name.SetAlias(true)
|
||||
return name
|
||||
|
||||
case objConst:
|
||||
name := do(ir.OLITERAL, false)
|
||||
typ, val := r.value()
|
||||
r.setType(name, typ)
|
||||
r.setValue(name, val)
|
||||
setType(name, typ)
|
||||
setValue(name, val)
|
||||
return name
|
||||
|
||||
case objFunc:
|
||||
@ -618,7 +618,7 @@ func (pr *pkgReader) objIdx(idx int, implicits, explicits []*types.Type) ir.Node
|
||||
sym = renameinit()
|
||||
}
|
||||
name := do(ir.ONAME, true)
|
||||
r.setType(name, r.signature(sym.Pkg, nil))
|
||||
setType(name, r.signature(sym.Pkg, nil))
|
||||
|
||||
name.Func = ir.NewFunc(r.pos())
|
||||
name.Func.Nname = name
|
||||
@ -629,7 +629,7 @@ func (pr *pkgReader) objIdx(idx int, implicits, explicits []*types.Type) ir.Node
|
||||
case objType:
|
||||
name := do(ir.OTYPE, true)
|
||||
typ := types.NewNamed(name)
|
||||
r.setType(name, typ)
|
||||
setType(name, typ)
|
||||
|
||||
// Important: We need to do this before SetUnderlying.
|
||||
r.ext.typeExt(name)
|
||||
@ -654,7 +654,7 @@ func (pr *pkgReader) objIdx(idx int, implicits, explicits []*types.Type) ir.Node
|
||||
|
||||
case objVar:
|
||||
name := do(ir.ONAME, false)
|
||||
r.setType(name, r.typ())
|
||||
setType(name, r.typ())
|
||||
r.ext.varExt(name)
|
||||
return name
|
||||
}
|
||||
@ -754,7 +754,7 @@ func (r *reader) method() *types.Field {
|
||||
fnsym := sym
|
||||
fnsym = ir.MethodSym(recv.Type, fnsym)
|
||||
name := ir.NewNameAt(pos, fnsym)
|
||||
r.setType(name, typ)
|
||||
setType(name, typ)
|
||||
|
||||
name.Func = ir.NewFunc(r.pos())
|
||||
name.Func.Nname = name
|
||||
@ -996,7 +996,7 @@ func (r *reader) funcarg(param *types.Field, sym *types.Sym, ctxt ir.Class) {
|
||||
}
|
||||
|
||||
name := ir.NewNameAt(r.updatePos(param.Pos), sym)
|
||||
r.setType(name, param.Type)
|
||||
setType(name, param.Type)
|
||||
r.addLocal(name, ctxt)
|
||||
|
||||
if r.inlCall == nil {
|
||||
@ -1276,7 +1276,7 @@ func (r *reader) stmt1(tag codeStmt, out *ir.Nodes) ir.Node {
|
||||
|
||||
name := ir.NewDeclNameAt(src.NoXPos, ir.OTYPE, ir.BlankNode.Sym())
|
||||
name.SetAlias(true)
|
||||
r.setType(name, types.Types[types.TINT])
|
||||
setType(name, types.Types[types.TINT])
|
||||
|
||||
n := ir.NewDecl(src.NoXPos, ir.ODCLTYPE, name)
|
||||
n.SetTypecheck(1)
|
||||
@ -1297,7 +1297,7 @@ func (r *reader) assignList() ([]*ir.Name, []ir.Node) {
|
||||
name := ir.NewNameAt(pos, sym)
|
||||
lhs[i] = name
|
||||
names = append(names, name)
|
||||
r.setType(name, typ)
|
||||
setType(name, typ)
|
||||
r.addLocal(name, ir.PAUTO)
|
||||
continue
|
||||
}
|
||||
@ -1438,7 +1438,7 @@ func (r *reader) switchStmt(label *types.Sym) ir.Node {
|
||||
typ := r.typ()
|
||||
|
||||
name := ir.NewNameAt(pos, tswitch.Tag.Sym())
|
||||
r.setType(name, typ)
|
||||
setType(name, typ)
|
||||
r.addLocal(name, ir.PAUTO)
|
||||
clause.Var = name
|
||||
name.Defn = tswitch
|
||||
@ -1701,12 +1701,12 @@ func (r *reader) funcLit() ir.Node {
|
||||
clo := fn.OClosure
|
||||
ir.NameClosure(clo, r.curfn)
|
||||
|
||||
r.setType(fn.Nname, xtype2)
|
||||
setType(fn.Nname, xtype2)
|
||||
if quirksMode() {
|
||||
fn.Nname.Ntype = ir.TypeNodeAt(typPos, xtype2)
|
||||
}
|
||||
typecheck.Func(fn)
|
||||
r.setType(clo, fn.Type())
|
||||
setType(clo, fn.Type())
|
||||
|
||||
fn.ClosureVars = make([]*ir.Name, 0, r.len())
|
||||
for len(fn.ClosureVars) < cap(fn.ClosureVars) {
|
||||
@ -1910,7 +1910,7 @@ func InlineCall(call *ir.CallExpr, fn *ir.Func, inlIndex int) *ir.InlinedCallExp
|
||||
tmpfn.Closgen = callerfn.Closgen
|
||||
defer func() { callerfn.Closgen = tmpfn.Closgen }()
|
||||
|
||||
r.setType(tmpfn.Nname, fn.Type())
|
||||
setType(tmpfn.Nname, fn.Type())
|
||||
r.curfn = tmpfn
|
||||
|
||||
r.inlCaller = callerfn
|
||||
@ -2098,7 +2098,7 @@ func expandInline(fn *ir.Func, pri pkgReaderIndex) {
|
||||
|
||||
{
|
||||
r := pri.asReader(relocBody, syncFuncBody)
|
||||
r.setType(tmpfn.Nname, fn.Type())
|
||||
setType(tmpfn.Nname, fn.Type())
|
||||
|
||||
// Don't change parameter's Sym/Nname fields.
|
||||
r.funarghack = true
|
||||
@ -2194,34 +2194,39 @@ func (r *reader) importedDef() bool {
|
||||
return r.p != localPkgReader && !r.hasTypeParams()
|
||||
}
|
||||
|
||||
func (r *reader) wrapTypes(target *ir.Package) {
|
||||
func MakeWrappers(target *ir.Package) {
|
||||
// Only unified IR in non-quirks mode emits its own wrappers.
|
||||
if base.Debug.Unified == 0 || quirksMode() {
|
||||
return
|
||||
}
|
||||
|
||||
// always generate a wrapper for error.Error (#29304)
|
||||
r.needWrapper(types.ErrorType)
|
||||
needWrapperTypes = append(needWrapperTypes, types.ErrorType)
|
||||
|
||||
seen := make(map[string]*types.Type)
|
||||
|
||||
for _, typ := range haveWrapperTypes {
|
||||
r.wrapType(typ, target, seen, false)
|
||||
wrapType(typ, target, seen, false)
|
||||
}
|
||||
haveWrapperTypes = nil
|
||||
|
||||
for _, typ := range needWrapperTypes {
|
||||
r.wrapType(typ, target, seen, true)
|
||||
wrapType(typ, target, seen, true)
|
||||
}
|
||||
needWrapperTypes = nil
|
||||
|
||||
for _, wrapper := range haveMethodValueWrappers {
|
||||
r.methodValueWrapper(wrapper.rcvr, wrapper.method, target, false)
|
||||
wrapMethodValue(wrapper.rcvr, wrapper.method, target, false)
|
||||
}
|
||||
haveMethodValueWrappers = nil
|
||||
|
||||
for _, wrapper := range needMethodValueWrappers {
|
||||
r.methodValueWrapper(wrapper.rcvr, wrapper.method, target, true)
|
||||
wrapMethodValue(wrapper.rcvr, wrapper.method, target, true)
|
||||
}
|
||||
needMethodValueWrappers = nil
|
||||
}
|
||||
|
||||
func (r *reader) wrapType(typ *types.Type, target *ir.Package, seen map[string]*types.Type, needed bool) {
|
||||
func wrapType(typ *types.Type, target *ir.Package, seen map[string]*types.Type, needed bool) {
|
||||
key := typ.LinkString()
|
||||
if prev := seen[key]; prev != nil {
|
||||
if !types.Identical(typ, prev) {
|
||||
@ -2244,22 +2249,22 @@ func (r *reader) wrapType(typ *types.Type, target *ir.Package, seen map[string]*
|
||||
base.FatalfAt(meth.Pos, "invalid method: %v", meth)
|
||||
}
|
||||
|
||||
r.methodWrapper(0, typ, meth, target)
|
||||
methodWrapper(0, typ, meth, target)
|
||||
|
||||
// For non-interface types, we also want *T wrappers.
|
||||
if !typ.IsInterface() {
|
||||
r.methodWrapper(1, typ, meth, target)
|
||||
methodWrapper(1, typ, meth, target)
|
||||
|
||||
// For not-in-heap types, *T is a scalar, not pointer shaped,
|
||||
// so the interface wrappers use **T.
|
||||
if typ.NotInHeap() {
|
||||
r.methodWrapper(2, typ, meth, target)
|
||||
methodWrapper(2, typ, meth, target)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
func (r *reader) methodWrapper(derefs int, tbase *types.Type, method *types.Field, target *ir.Package) {
|
||||
func methodWrapper(derefs int, tbase *types.Type, method *types.Field, target *ir.Package) {
|
||||
wrapper := tbase
|
||||
for i := 0; i < derefs; i++ {
|
||||
wrapper = types.NewPtr(wrapper)
|
||||
@ -2279,7 +2284,7 @@ func (r *reader) methodWrapper(derefs int, tbase *types.Type, method *types.Fiel
|
||||
// TODO(mdempsky): Use method.Pos instead?
|
||||
pos := base.AutogeneratedPos
|
||||
|
||||
fn := r.newWrapperFunc(pos, sym, wrapper, method)
|
||||
fn := newWrapperFunc(pos, sym, wrapper, method)
|
||||
|
||||
var recv ir.Node = fn.Nname.Type().Recv().Nname.(*ir.Name)
|
||||
|
||||
@ -2299,10 +2304,10 @@ func (r *reader) methodWrapper(derefs int, tbase *types.Type, method *types.Fiel
|
||||
|
||||
addTailCall(pos, fn, recv, method)
|
||||
|
||||
r.finishWrapperFunc(fn, target)
|
||||
finishWrapperFunc(fn, target)
|
||||
}
|
||||
|
||||
func (r *reader) methodValueWrapper(recvType *types.Type, method *types.Field, target *ir.Package, needed bool) {
|
||||
func wrapMethodValue(recvType *types.Type, method *types.Field, target *ir.Package, needed bool) {
|
||||
sym := ir.MethodSymSuffix(recvType, method.Sym, "-fm")
|
||||
if sym.Uniq() {
|
||||
return
|
||||
@ -2312,7 +2317,7 @@ func (r *reader) methodValueWrapper(recvType *types.Type, method *types.Field, t
|
||||
// TODO(mdempsky): Use method.Pos instead?
|
||||
pos := base.AutogeneratedPos
|
||||
|
||||
fn := r.newWrapperFunc(pos, sym, nil, method)
|
||||
fn := newWrapperFunc(pos, sym, nil, method)
|
||||
sym.Def = fn.Nname
|
||||
|
||||
// Declare and initialize variable holding receiver.
|
||||
@ -2325,10 +2330,10 @@ func (r *reader) methodValueWrapper(recvType *types.Type, method *types.Field, t
|
||||
|
||||
addTailCall(pos, fn, recv, method)
|
||||
|
||||
r.finishWrapperFunc(fn, target)
|
||||
finishWrapperFunc(fn, target)
|
||||
}
|
||||
|
||||
func (r *reader) newWrapperFunc(pos src.XPos, sym *types.Sym, wrapper *types.Type, method *types.Field) *ir.Func {
|
||||
func newWrapperFunc(pos src.XPos, sym *types.Sym, wrapper *types.Type, method *types.Field) *ir.Func {
|
||||
fn := ir.NewFunc(pos)
|
||||
fn.SetDupok(true) // TODO(mdempsky): Leave unset for local, non-generic wrappers?
|
||||
|
||||
@ -2339,14 +2344,14 @@ func (r *reader) newWrapperFunc(pos src.XPos, sym *types.Sym, wrapper *types.Typ
|
||||
fn.Nname = name
|
||||
|
||||
sig := newWrapperType(wrapper, method)
|
||||
r.setType(name, sig)
|
||||
setType(name, sig)
|
||||
|
||||
// TODO(mdempsky): De-duplicate with similar logic in funcargs.
|
||||
defParams := func(class ir.Class, params *types.Type) {
|
||||
for _, param := range params.FieldSlice() {
|
||||
name := ir.NewNameAt(param.Pos, param.Sym)
|
||||
name.Class = class
|
||||
r.setType(name, param.Type)
|
||||
setType(name, param.Type)
|
||||
|
||||
name.Curfn = fn
|
||||
fn.Dcl = append(fn.Dcl, name)
|
||||
@ -2362,13 +2367,17 @@ func (r *reader) newWrapperFunc(pos src.XPos, sym *types.Sym, wrapper *types.Typ
|
||||
return fn
|
||||
}
|
||||
|
||||
func (r *reader) finishWrapperFunc(fn *ir.Func, target *ir.Package) {
|
||||
func finishWrapperFunc(fn *ir.Func, target *ir.Package) {
|
||||
typecheck.Func(fn)
|
||||
|
||||
ir.WithFunc(fn, func() {
|
||||
typecheck.Stmts(fn.Body)
|
||||
})
|
||||
|
||||
// We generate wrappers after the global inlining pass,
|
||||
// so we're responsible for applying inlining ourselves here.
|
||||
inline.InlineCalls(fn)
|
||||
|
||||
target.Decls = append(target.Decls, fn)
|
||||
}
|
||||
|
||||
|
||||
@ -138,11 +138,6 @@ func unified(noders []*noder) {
|
||||
}
|
||||
todoBodies = nil
|
||||
|
||||
if !quirksMode() {
|
||||
// TODO(mdempsky): Investigate generating wrappers in quirks mode too.
|
||||
r.wrapTypes(target)
|
||||
}
|
||||
|
||||
// Check that nothing snuck past typechecking.
|
||||
for _, n := range target.Decls {
|
||||
if n.Typecheck() == 0 {
|
||||
|
||||
Loading…
Reference in New Issue
Block a user