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[dev.regabi] cmd/compile: add custom statement Node implementations

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These are fairly rote implementations of structs appropriate to
each Op (or group of Ops).

The names of these are unknown except to ir.NodAt for now.
A later, automated change will introduce direct use of the types
throughout package gc.

Passes buildall w/ toolstash -cmp.

Change-Id: Ie9835fcd2b214fda5b2149e187af369d76534487
Reviewed-on: https://go-review.googlesource.com/c/go/+/274108
Trust: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This commit is contained in:
Russ Cox 2020-11-29 21:23:47 -05:00
parent 2bc814cd18
commit ffa68716a0
2 changed files with 578 additions and 35 deletions
Download patch file Download diff file Expand all files Collapse all files

78
src/cmd/compile/internal/ir/node.go
View file

@ -1029,22 +1029,60 @@ func Nod(op Op, nleft, nright Node) Node {
func NodAt(pos src.XPos, op Op, nleft, nright Node) Node {
var n *node
switch op {
case OAS, OSELRECV:
n := NewAssignStmt(pos, nleft, nright)
n.SetOp(op)
return n
case OAS2, OAS2DOTTYPE, OAS2FUNC, OAS2MAPR, OAS2RECV, OSELRECV2:
n := NewAssignListStmt(pos, nil, nil)
n.SetOp(op)
return n
case OASOP:
return NewAssignOpStmt(pos, OXXX, nleft, nright)
case OBLOCK:
return NewBlockStmt(pos, nil)
case OBREAK, OCONTINUE, OFALL, OGOTO, ORETJMP:
return NewBranchStmt(pos, op, nil)
case OCASE:
return NewCaseStmt(pos, nil, nil)
case ODCL, ODCLCONST, ODCLTYPE:
return NewDecl(pos, op, nleft)
case ODCLFUNC:
return NewFunc(pos)
case ODEFER:
return NewDeferStmt(pos, nleft)
case ODEREF:
return NewStarExpr(pos, nleft)
case OPACK:
return NewPkgName(pos, nil, nil)
case OEMPTY:
return NewEmptyStmt(pos)
case OBREAK, OCONTINUE, OFALL, OGOTO:
return NewBranchStmt(pos, op, nil)
case OFOR:
return NewForStmt(pos, nil, nleft, nright, nil)
case OGO:
return NewGoStmt(pos, nleft)
case OIF:
return NewIfStmt(pos, nleft, nil, nil)
case OINLMARK:
return NewInlineMarkStmt(pos, types.BADWIDTH)
case OLABEL:
return NewLabelStmt(pos, nil)
case OLITERAL, OTYPE, OIOTA:
n := newNameAt(pos, nil)
n.SetOp(op)
return n
case OLABEL:
return NewLabelStmt(pos, nil)
case OPACK:
return NewPkgName(pos, nil, nil)
case ORANGE:
return NewRangeStmt(pos, nil, nright, nil)
case ORETURN:
return NewReturnStmt(pos, nil)
case OSELECT:
return NewSelectStmt(pos, nil)
case OSEND:
return NewSendStmt(pos, nleft, nright)
case OSWITCH:
return NewSwitchStmt(pos, nleft, nil)
case OTYPESW:
return NewTypeSwitchGuard(pos, nleft, nright)
default:
n = new(node)
}
@ -1067,15 +1105,7 @@ var okForNod = [OEND]bool{
OANDNOT: true,
OAPPEND: true,
OARRAYLIT: true,
OAS: true,
OAS2: true,
OAS2DOTTYPE: true,
OAS2FUNC: true,
OAS2MAPR: true,
OAS2RECV: true,
OASOP: true,
OBITNOT: true,
OBLOCK: true,
OBYTES2STR: true,
OBYTES2STRTMP: true,
OCALL: true,
@ -1083,7 +1113,6 @@ var okForNod = [OEND]bool{
OCALLINTER: true,
OCALLMETH: true,
OCAP: true,
OCASE: true,
OCFUNC: true,
OCHECKNIL: true,
OCLOSE: true,
@ -1093,10 +1122,6 @@ var okForNod = [OEND]bool{
OCONVIFACE: true,
OCONVNOP: true,
OCOPY: true,
ODCL: true,
ODCLCONST: true,
ODCLTYPE: true,
ODEFER: true,
ODELETE: true,
ODIV: true,
ODOT: true,
@ -1107,22 +1132,16 @@ var okForNod = [OEND]bool{
ODOTTYPE2: true,
OEFACE: true,
OEQ: true,
OFOR: true,
OFORUNTIL: true,
OGE: true,
OGETG: true,
OGO: true,
OGT: true,
OIDATA: true,
OIF: true,
OIMAG: true,
OINDEX: true,
OINDEXMAP: true,
OINLCALL: true,
OINLMARK: true,
OITAB: true,
OKEY: true,
OLABEL: true,
OLE: true,
OLEN: true,
OLSH: true,
@ -1151,20 +1170,13 @@ var okForNod = [OEND]bool{
OPRINT: true,
OPRINTN: true,
OPTRLIT: true,
ORANGE: true,
OREAL: true,
ORECOVER: true,
ORECV: true,
ORESULT: true,
ORETJMP: true,
ORETURN: true,
ORSH: true,
ORUNES2STR: true,
ORUNESTR: true,
OSELECT: true,
OSELRECV: true,
OSELRECV2: true,
OSEND: true,
OSIZEOF: true,
OSLICE: true,
OSLICE3: true,
@ -1180,8 +1192,6 @@ var okForNod = [OEND]bool{
OSTRUCTKEY: true,
OSTRUCTLIT: true,
OSUB: true,
OSWITCH: true,
OTYPESW: true,
OVARDEF: true,
OVARKILL: true,
OVARLIVE: true,