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cmd/internal/obj: remove unneeded Addr.Node and Prog.Opt fields
Change-Id: I218b241c32a5948b66ad0d95ecc368648cf4ddf5 Reviewed-on: https://go-review.googlesource.com/38130 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
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@ -124,7 +124,6 @@ func Naddr(a *obj.Addr, n *Node) {
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a.Offset = n.Xoffset
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s := n.Sym
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a.Node = n.Orig
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if s == nil {
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Fatalf("naddr: nil sym %v", n)
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@ -4472,13 +4472,11 @@ func AddAux2(a *obj.Addr, v *ssa.Value, offset int64) {
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case *ssa.ArgSymbol:
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n := sym.Node.(*Node)
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a.Name = obj.NAME_PARAM
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a.Node = n
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a.Sym = Linksym(n.Orig.Sym)
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a.Offset += n.Xoffset
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case *ssa.AutoSymbol:
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n := sym.Node.(*Node)
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a.Name = obj.NAME_AUTO
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a.Node = n
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a.Sym = Linksym(n.Sym)
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a.Offset += n.Xoffset
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default:
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@ -4581,7 +4579,6 @@ func AutoVar(v *ssa.Value) (*Node, int64) {
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func AddrAuto(a *obj.Addr, v *ssa.Value) {
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n, off := AutoVar(v)
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a.Type = obj.TYPE_MEM
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a.Node = n
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a.Sym = Linksym(n.Sym)
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a.Reg = int16(thearch.REGSP)
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a.Offset = n.Xoffset + off
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@ -4598,7 +4595,6 @@ func (s *SSAGenState) AddrScratch(a *obj.Addr) {
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}
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a.Type = obj.TYPE_MEM
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a.Name = obj.NAME_AUTO
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a.Node = s.ScratchFpMem
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a.Sym = Linksym(s.ScratchFpMem.Sym)
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a.Reg = int16(thearch.REGSP)
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a.Offset = s.ScratchFpMem.Xoffset
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@ -169,8 +169,6 @@ type Addr struct {
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// for TYPE_BRANCH, a *Prog (optional)
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// for TYPE_TEXTSIZE, an int32 (optional)
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Val interface{}
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Node interface{} // for use by compiler
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}
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type AddrName int8
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@ -231,29 +229,28 @@ const (
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// The other fields not yet mentioned are for use by the back ends and should
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// be left zeroed by creators of Prog lists.
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type Prog struct {
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Ctxt *Link // linker context
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Link *Prog // next Prog in linked list
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From Addr // first source operand
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From3 *Addr // third source operand (second is Reg below)
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To Addr // destination operand (second is RegTo2 below)
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Pcond *Prog // target of conditional jump
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Opt interface{} // available to optimization passes to hold per-Prog state
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Forwd *Prog // for x86 back end
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Rel *Prog // for x86, arm back ends
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Pc int64 // for back ends or assembler: virtual or actual program counter, depending on phase
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Pos src.XPos // source position of this instruction
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Spadj int32 // effect of instruction on stack pointer (increment or decrement amount)
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As As // assembler opcode
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Reg int16 // 2nd source operand
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RegTo2 int16 // 2nd destination operand
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Mark uint16 // bitmask of arch-specific items
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Optab uint16 // arch-specific opcode index
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Scond uint8 // condition bits for conditional instruction (e.g., on ARM)
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Back uint8 // for x86 back end: backwards branch state
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Ft uint8 // for x86 back end: type index of Prog.From
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Tt uint8 // for x86 back end: type index of Prog.To
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Isize uint8 // for x86 back end: size of the instruction in bytes
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Mode int8 // for x86 back end: 32- or 64-bit mode
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Ctxt *Link // linker context
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Link *Prog // next Prog in linked list
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From Addr // first source operand
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From3 *Addr // third source operand (second is Reg below)
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To Addr // destination operand (second is RegTo2 below)
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Pcond *Prog // target of conditional jump
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Forwd *Prog // for x86 back end
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Rel *Prog // for x86, arm back ends
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Pc int64 // for back ends or assembler: virtual or actual program counter, depending on phase
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Pos src.XPos // source position of this instruction
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Spadj int32 // effect of instruction on stack pointer (increment or decrement amount)
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As As // assembler opcode
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Reg int16 // 2nd source operand
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RegTo2 int16 // 2nd destination operand
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Mark uint16 // bitmask of arch-specific items
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Optab uint16 // arch-specific opcode index
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Scond uint8 // condition bits for conditional instruction (e.g., on ARM)
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Back uint8 // for x86 back end: backwards branch state
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Ft uint8 // for x86 back end: type index of Prog.From
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Tt uint8 // for x86 back end: type index of Prog.To
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Isize uint8 // for x86 back end: size of the instruction in bytes
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Mode int8 // for x86 back end: 32- or 64-bit mode
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}
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// From3Type returns From3.Type, or TYPE_NONE when From3 is nil.
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@ -22,9 +22,9 @@ func TestSizeof(t *testing.T) {
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_32bit uintptr // size on 32bit platforms
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_64bit uintptr // size on 64bit platforms
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}{
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{Addr{}, 40, 64},
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{Addr{}, 32, 48},
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{LSym{}, 60, 104},
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{Prog{}, 148, 232},
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{Prog{}, 124, 184},
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}
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for _, tt := range tests {
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