qbit/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-11-11 20:40:21 -07:00
Code Releases Activity

cmd/compile: don't set Ntype in noder2 anymore

Browse Source 
Now that we are no longer calling the old typechecker at all during the
noder2 pass, we don't need to create and set an Ntype node ((which is
just a node representation of the type which we already know) for the
Name and Closure nodes. This should reduce memory usage a bit for -G=3.

Change-Id: I6b1345007ce067a89ee64955a53f25645c303f4d
Reviewed-on: https://go-review.googlesource.com/c/go/+/308909
Trust: Dan Scales <danscales@google.com>
Run-TryBot: Dan Scales <danscales@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>
This commit is contained in:
Dan Scales 2021-04-09 06:30:20 -07:00
parent 756e2b1529
commit 281d168e2d
4 changed files with 9 additions and 12 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/cmd/compile/internal/inline/inl.go
View File

@ -506,7 +506,10 @@ func inlcopy(n ir.Node) ir.Node {
newfn.Nname = ir.NewNameAt(oldfn.Nname.Pos(), oldfn.Nname.Sym())
// XXX OK to share fn.Type() ??
newfn.Nname.SetType(oldfn.Nname.Type())
newfn.Nname.Ntype = inlcopy(oldfn.Nname.Ntype).(ir.Ntype)
// Ntype can be nil for -G=3 mode.
if oldfn.Nname.Ntype != nil {
newfn.Nname.Ntype = inlcopy(oldfn.Nname.Ntype).(ir.Ntype)
}
newfn.Body = inlcopylist(oldfn.Body)
// Make shallow copy of the Dcl and ClosureVar slices
newfn.Dcl = append([]*ir.Name(nil), oldfn.Dcl...)
@ -1213,7 +1216,10 @@ func (subst *inlsubst) closure(n *ir.ClosureExpr) ir.Node {
newfn.SetIsHiddenClosure(true)
newfn.Nname = ir.NewNameAt(n.Pos(), ir.BlankNode.Sym())
newfn.Nname.Func = newfn
newfn.Nname.Ntype = subst.node(oldfn.Nname.Ntype).(ir.Ntype)
// Ntype can be nil for -G=3 mode.
if oldfn.Nname.Ntype != nil {
newfn.Nname.Ntype = subst.node(oldfn.Nname.Ntype).(ir.Ntype)
}
newfn.Nname.Defn = newfn
m.(*ir.ClosureExpr).Func = newfn

2
src/cmd/compile/internal/noder/expr.go
View File

@ -360,8 +360,6 @@ func (g *irgen) funcLit(typ2 types2.Type, expr *syntax.FuncLit) ir.Node {
typ := g.typ(typ2)
fn.Nname.Func = fn
fn.Nname.Defn = fn
// Set Ntype for now to be compatible with later parts of compile, remove later.
fn.Nname.Ntype = ir.TypeNode(typ)
typed(typ, fn.Nname)
fn.SetTypecheck(1)

3
src/cmd/compile/internal/noder/object.go
View File

@ -147,9 +147,6 @@ func (g *irgen) objFinish(name *ir.Name, class ir.Class, typ *types.Type) {
sym.SetFunc(true)
}
// We already know name's type, but typecheck is really eager to try
// recomputing it later. This appears to prevent that at least.
name.Ntype = ir.TypeNode(typ)
name.SetTypecheck(1)
name.SetWalkdef(1)

6
src/cmd/compile/internal/noder/stencil.go
View File

@ -298,7 +298,6 @@ func (g *irgen) genericSubst(newsym *types.Sym, nameNode *ir.Name, targs []ir.No
subst.fields(ir.PPARAM, append(oldt.Recvs().FieldSlice(), oldt.Params().FieldSlice()...), newf.Dcl),
subst.fields(ir.PPARAMOUT, oldt.Results().FieldSlice(), newf.Dcl))
newf.Nname.Ntype = ir.TypeNode(newt)
newf.Nname.SetType(newt)
ir.MarkFunc(newf.Nname)
newf.SetTypecheck(1)
@ -497,8 +496,7 @@ func (subst *subster) node(n ir.Node) ir.Node {
case ir.OCLOSURE:
x := x.(*ir.ClosureExpr)
// Need to save/duplicate x.Func.Nname,
// x.Func.Nname.Ntype, x.Func.Dcl, x.Func.ClosureVars, and
// Need to duplicate x.Func.Nname, x.Func.Dcl, x.Func.ClosureVars, and
// x.Func.Body.
oldfn := x.Func
newfn := ir.NewFunc(oldfn.Pos())
@ -522,8 +520,6 @@ func (subst *subster) node(n ir.Node) ir.Node {
newfn.Dcl = subst.namelist(oldfn.Dcl)
newfn.ClosureVars = subst.namelist(oldfn.ClosureVars)
// Set Ntype for now to be compatible with later parts of compiler
newfn.Nname.Ntype = subst.node(oldfn.Nname.Ntype).(ir.Ntype)
typed(subst.typ(oldfn.Nname.Type()), newfn.Nname)
typed(newfn.Nname.Type(), m)
newfn.SetTypecheck(1)