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cmd/interna/obj/riscv: use obj.REG_NONE rather than 0

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No functional change, but makes the code consistent and more readable.

Change-Id: I33db681fe0ed501842755f27b6e7843cdc8877cd
Reviewed-on: https://go-review.googlesource.com/c/go/+/345049
Trust: Joel Sing <joel@sing.id.au>
Trust: Meng Zhuo <mzh@golangcn.org>
Reviewed-by: Cherry Mui <cherryyz@google.com>
Reviewed-by: Meng Zhuo <mzh@golangcn.org>
This commit is contained in:
Joel Sing 2021-08-25 20:08:37 +10:00
parent f030043e37
commit c50d811c7a
1 changed files with 9 additions and 9 deletions
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18
src/cmd/internal/obj/riscv/obj.go
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@ -51,7 +51,7 @@ func jalrToSym(ctxt *obj.Link, p *obj.Prog, newprog obj.ProgAlloc, lr int16) *ob
p.Mark |= NEED_PCREL_ITYPE_RELOC p.Mark |= NEED_PCREL_ITYPE_RELOC
p.SetFrom3(obj.Addr{Type: obj.TYPE_CONST, Offset: to.Offset, Sym: to.Sym}) p.SetFrom3(obj.Addr{Type: obj.TYPE_CONST, Offset: to.Offset, Sym: to.Sym})
p.From = obj.Addr{Type: obj.TYPE_CONST, Offset: 0} p.From = obj.Addr{Type: obj.TYPE_CONST, Offset: 0}
p.Reg = 0 p.Reg = obj.REG_NONE
p.To = obj.Addr{Type: obj.TYPE_REG, Reg: REG_TMP} p.To = obj.Addr{Type: obj.TYPE_REG, Reg: REG_TMP}
p = obj.Appendp(p, newprog) p = obj.Appendp(p, newprog)
@ -59,7 +59,7 @@ func jalrToSym(ctxt *obj.Link, p *obj.Prog, newprog obj.ProgAlloc, lr int16) *ob
p.As = AJALR p.As = AJALR
p.From.Type = obj.TYPE_REG p.From.Type = obj.TYPE_REG
p.From.Reg = lr p.From.Reg = lr
p.Reg = 0 p.Reg = obj.REG_NONE
p.To.Type = obj.TYPE_REG p.To.Type = obj.TYPE_REG
p.To.Reg = REG_TMP p.To.Reg = REG_TMP
p.To.Sym = to.Sym p.To.Sym = to.Sym
@ -72,7 +72,7 @@ func jalrToSym(ctxt *obj.Link, p *obj.Prog, newprog obj.ProgAlloc, lr int16) *ob
func progedit(ctxt *obj.Link, p *obj.Prog, newprog obj.ProgAlloc) { func progedit(ctxt *obj.Link, p *obj.Prog, newprog obj.ProgAlloc) {
// Expand binary instructions to ternary ones. // Expand binary instructions to ternary ones.
if p.Reg == 0 { if p.Reg == obj.REG_NONE {
switch p.As { switch p.As {
case AADDI, ASLTI, ASLTIU, AANDI, AORI, AXORI, ASLLI, ASRLI, ASRAI, case AADDI, ASLTI, ASLTIU, AANDI, AORI, AXORI, ASLLI, ASRLI, ASRAI,
AADD, AAND, AOR, AXOR, ASLL, ASRL, ASUB, ASRA, AADD, AAND, AOR, AXOR, ASLL, ASRL, ASUB, ASRA,
@ -154,7 +154,7 @@ func progedit(ctxt *obj.Link, p *obj.Prog, newprog obj.ProgAlloc) {
case AMOV: case AMOV:
// Put >32-bit constants in memory and load them. // Put >32-bit constants in memory and load them.
if p.From.Type == obj.TYPE_CONST && p.From.Name == obj.NAME_NONE && p.From.Reg == 0 && int64(int32(p.From.Offset)) != p.From.Offset { if p.From.Type == obj.TYPE_CONST && p.From.Name == obj.NAME_NONE && p.From.Reg == obj.REG_NONE && int64(int32(p.From.Offset)) != p.From.Offset {
p.From.Type = obj.TYPE_MEM p.From.Type = obj.TYPE_MEM
p.From.Sym = ctxt.Int64Sym(p.From.Offset) p.From.Sym = ctxt.Int64Sym(p.From.Offset)
p.From.Name = obj.NAME_EXTERN p.From.Name = obj.NAME_EXTERN
@ -449,7 +449,7 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
ldpanic.As = AMOV ldpanic.As = AMOV
ldpanic.From = obj.Addr{Type: obj.TYPE_MEM, Reg: REGG, Offset: 4 * int64(ctxt.Arch.PtrSize)} // G.panic ldpanic.From = obj.Addr{Type: obj.TYPE_MEM, Reg: REGG, Offset: 4 * int64(ctxt.Arch.PtrSize)} // G.panic
ldpanic.Reg = 0 ldpanic.Reg = obj.REG_NONE
ldpanic.To = obj.Addr{Type: obj.TYPE_REG, Reg: REG_X11} ldpanic.To = obj.Addr{Type: obj.TYPE_REG, Reg: REG_X11}
bneadj := obj.Appendp(ldpanic, newprog) bneadj := obj.Appendp(ldpanic, newprog)
@ -469,7 +469,7 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
getargp := obj.Appendp(last, newprog) getargp := obj.Appendp(last, newprog)
getargp.As = AMOV getargp.As = AMOV
getargp.From = obj.Addr{Type: obj.TYPE_MEM, Reg: REG_X11, Offset: 0} // Panic.argp getargp.From = obj.Addr{Type: obj.TYPE_MEM, Reg: REG_X11, Offset: 0} // Panic.argp
getargp.Reg = 0 getargp.Reg = obj.REG_NONE
getargp.To = obj.Addr{Type: obj.TYPE_REG, Reg: REG_X12} getargp.To = obj.Addr{Type: obj.TYPE_REG, Reg: REG_X12}
bneadj.To.SetTarget(getargp) bneadj.To.SetTarget(getargp)
@ -496,7 +496,7 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
setargp := obj.Appendp(adjargp, newprog) setargp := obj.Appendp(adjargp, newprog)
setargp.As = AMOV setargp.As = AMOV
setargp.From = obj.Addr{Type: obj.TYPE_REG, Reg: REG_X12} setargp.From = obj.Addr{Type: obj.TYPE_REG, Reg: REG_X12}
setargp.Reg = 0 setargp.Reg = obj.REG_NONE
setargp.To = obj.Addr{Type: obj.TYPE_MEM, Reg: REG_X11, Offset: 0} // Panic.argp setargp.To = obj.Addr{Type: obj.TYPE_MEM, Reg: REG_X11, Offset: 0} // Panic.argp
godone := obj.Appendp(setargp, newprog) godone := obj.Appendp(setargp, newprog)
@ -570,7 +570,7 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
} else { } else {
p.As = AJALR p.As = AJALR
p.From = obj.Addr{Type: obj.TYPE_REG, Reg: REG_ZERO} p.From = obj.Addr{Type: obj.TYPE_REG, Reg: REG_ZERO}
p.Reg = 0 p.Reg = obj.REG_NONE
p.To = obj.Addr{Type: obj.TYPE_REG, Reg: REG_LR} p.To = obj.Addr{Type: obj.TYPE_REG, Reg: REG_LR}
} }
@ -658,7 +658,7 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
p.As = AAUIPC p.As = AAUIPC
p.From = obj.Addr{Type: obj.TYPE_BRANCH, Sym: p.From.Sym} p.From = obj.Addr{Type: obj.TYPE_BRANCH, Sym: p.From.Sym}
p.From.SetTarget(p.To.Target()) p.From.SetTarget(p.To.Target())
p.Reg = 0 p.Reg = obj.REG_NONE
p.To = obj.Addr{Type: obj.TYPE_REG, Reg: REG_TMP} p.To = obj.Addr{Type: obj.TYPE_REG, Reg: REG_TMP}
rescan = true rescan = true