mirror of
https://github.com/golang/go.git
synced 2025-12-08 06:10:04 +00:00
runtime: remove duff support for arm64
Change-Id: Ib290079a77a746a8512cd4638310b24164f6a930 Reviewed-on: https://go-review.googlesource.com/c/go/+/679456 Reviewed-by: Keith Randall <khr@google.com> Reviewed-by: Jorropo <jorropo.pgm@gmail.com> Reviewed-by: Michael Knyszek <mknyszek@google.com> Auto-Submit: Keith Randall <khr@golang.org> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This commit is contained in:
Keith Randall
Gopher Robot
parent
15d6dbc05c
commit
e4291e484c
4 changed files with 4 additions and 418 deletions
|
|
@ -892,8 +892,6 @@ var optab = []Optab{
|
|||
{obj.ANOP, C_LCON, C_NONE, C_NONE, C_NONE, C_NONE, 0, 0, 0, 0, 0}, // nop variants, see #40689
|
||||
{obj.ANOP, C_ZREG, C_NONE, C_NONE, C_NONE, C_NONE, 0, 0, 0, 0, 0},
|
||||
{obj.ANOP, C_VREG, C_NONE, C_NONE, C_NONE, C_NONE, 0, 0, 0, 0, 0},
|
||||
{obj.ADUFFZERO, C_NONE, C_NONE, C_NONE, C_SBRA, C_NONE, 5, 4, 0, 0, 0}, // same as AB/ABL
|
||||
{obj.ADUFFCOPY, C_NONE, C_NONE, C_NONE, C_SBRA, C_NONE, 5, 4, 0, 0, 0}, // same as AB/ABL
|
||||
{obj.APCALIGN, C_LCON, C_NONE, C_NONE, C_NONE, C_NONE, 0, 0, 0, 0, 0}, // align code
|
||||
{obj.APCALIGNMAX, C_LCON, C_NONE, C_NONE, C_LCON, C_NONE, 0, 0, 0, 0, 0}, // align code, conditional
|
||||
}
|
||||
|
|
@ -3297,9 +3295,7 @@ func buildop(ctxt *obj.Link) {
|
|||
obj.AFUNCDATA,
|
||||
obj.APCALIGN,
|
||||
obj.APCALIGNMAX,
|
||||
obj.APCDATA,
|
||||
obj.ADUFFZERO,
|
||||
obj.ADUFFCOPY:
|
||||
obj.APCDATA:
|
||||
break
|
||||
}
|
||||
}
|
||||
|
|
@ -6971,7 +6967,7 @@ func (c *ctxt7) opbra(p *obj.Prog, a obj.As) uint32 {
|
|||
case AB:
|
||||
return 0<<31 | 5<<26 /* imm26 */
|
||||
|
||||
case obj.ADUFFZERO, obj.ADUFFCOPY, ABL:
|
||||
case ABL:
|
||||
return 1<<31 | 5<<26
|
||||
}
|
||||
|
||||
|
|
|
|||
|
|
@ -319,11 +319,7 @@ func progedit(ctxt *obj.Link, p *obj.Prog, newprog obj.ProgAlloc) {
|
|||
|
||||
// Rewrite BR/BL to symbol as TYPE_BRANCH.
|
||||
switch p.As {
|
||||
case AB,
|
||||
ABL,
|
||||
obj.ARET,
|
||||
obj.ADUFFZERO,
|
||||
obj.ADUFFCOPY:
|
||||
case AB, ABL, obj.ARET:
|
||||
if p.To.Sym != nil {
|
||||
p.To.Type = obj.TYPE_BRANCH
|
||||
}
|
||||
|
|
@ -400,39 +396,6 @@ func progedit(ctxt *obj.Link, p *obj.Prog, newprog obj.ProgAlloc) {
|
|||
|
||||
// Rewrite p, if necessary, to access global data via the global offset table.
|
||||
func (c *ctxt7) rewriteToUseGot(p *obj.Prog) {
|
||||
if p.As == obj.ADUFFCOPY || p.As == obj.ADUFFZERO {
|
||||
// ADUFFxxx $offset
|
||||
// becomes
|
||||
// MOVD runtime.duffxxx@GOT, REGTMP
|
||||
// ADD $offset, REGTMP
|
||||
// CALL REGTMP
|
||||
var sym *obj.LSym
|
||||
if p.As == obj.ADUFFZERO {
|
||||
sym = c.ctxt.LookupABI("runtime.duffzero", obj.ABIInternal)
|
||||
} else {
|
||||
sym = c.ctxt.LookupABI("runtime.duffcopy", obj.ABIInternal)
|
||||
}
|
||||
offset := p.To.Offset
|
||||
p.As = AMOVD
|
||||
p.From.Type = obj.TYPE_MEM
|
||||
p.From.Name = obj.NAME_GOTREF
|
||||
p.From.Sym = sym
|
||||
p.To.Type = obj.TYPE_REG
|
||||
p.To.Reg = REGTMP
|
||||
p.To.Name = obj.NAME_NONE
|
||||
p.To.Offset = 0
|
||||
p.To.Sym = nil
|
||||
p1 := obj.Appendp(p, c.newprog)
|
||||
p1.As = AADD
|
||||
p1.From.Type = obj.TYPE_CONST
|
||||
p1.From.Offset = offset
|
||||
p1.To.Type = obj.TYPE_REG
|
||||
p1.To.Reg = REGTMP
|
||||
p2 := obj.Appendp(p1, c.newprog)
|
||||
p2.As = obj.ACALL
|
||||
p2.To.Type = obj.TYPE_REG
|
||||
p2.To.Reg = REGTMP
|
||||
}
|
||||
|
||||
// We only care about global data: NAME_EXTERN means a global
|
||||
// symbol in the Go sense, and p.Sym.Local is true for a few
|
||||
|
|
@ -543,9 +506,7 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
|
|||
case obj.ATEXT:
|
||||
p.Mark |= LEAF
|
||||
|
||||
case ABL,
|
||||
obj.ADUFFZERO,
|
||||
obj.ADUFFCOPY:
|
||||
case ABL:
|
||||
c.cursym.Func().Text.Mark &^= LEAF
|
||||
}
|
||||
}
|
||||
|
|
@ -912,110 +873,7 @@ func preprocess(ctxt *obj.Link, cursym *obj.LSym, newprog obj.ProgAlloc) {
|
|||
p.From.Type = obj.TYPE_MEM
|
||||
p.From.Reg = REGSP
|
||||
}
|
||||
|
||||
case obj.ADUFFCOPY:
|
||||
// ADR ret_addr, R27
|
||||
// STP (FP, R27), -24(SP)
|
||||
// SUB 24, SP, FP
|
||||
// DUFFCOPY
|
||||
// ret_addr:
|
||||
// SUB 8, SP, FP
|
||||
|
||||
q1 := p
|
||||
// copy DUFFCOPY from q1 to q4
|
||||
q4 := obj.Appendp(p, c.newprog)
|
||||
q4.Pos = p.Pos
|
||||
q4.As = obj.ADUFFCOPY
|
||||
q4.To = p.To
|
||||
|
||||
q1.As = AADR
|
||||
q1.From.Type = obj.TYPE_BRANCH
|
||||
q1.To.Type = obj.TYPE_REG
|
||||
q1.To.Reg = REG_R27
|
||||
|
||||
q2 := obj.Appendp(q1, c.newprog)
|
||||
q2.Pos = p.Pos
|
||||
q2.As = ASTP
|
||||
q2.From.Type = obj.TYPE_REGREG
|
||||
q2.From.Reg = REGFP
|
||||
q2.From.Offset = int64(REG_R27)
|
||||
q2.To.Type = obj.TYPE_MEM
|
||||
q2.To.Reg = REGSP
|
||||
q2.To.Offset = -24
|
||||
|
||||
// maintain FP for DUFFCOPY
|
||||
q3 := obj.Appendp(q2, c.newprog)
|
||||
q3.Pos = p.Pos
|
||||
q3.As = ASUB
|
||||
q3.From.Type = obj.TYPE_CONST
|
||||
q3.From.Offset = 24
|
||||
q3.Reg = REGSP
|
||||
q3.To.Type = obj.TYPE_REG
|
||||
q3.To.Reg = REGFP
|
||||
|
||||
q5 := obj.Appendp(q4, c.newprog)
|
||||
q5.Pos = p.Pos
|
||||
q5.As = ASUB
|
||||
q5.From.Type = obj.TYPE_CONST
|
||||
q5.From.Offset = 8
|
||||
q5.Reg = REGSP
|
||||
q5.To.Type = obj.TYPE_REG
|
||||
q5.To.Reg = REGFP
|
||||
q1.From.SetTarget(q5)
|
||||
p = q5
|
||||
|
||||
case obj.ADUFFZERO:
|
||||
// ADR ret_addr, R27
|
||||
// STP (FP, R27), -24(SP)
|
||||
// SUB 24, SP, FP
|
||||
// DUFFZERO
|
||||
// ret_addr:
|
||||
// SUB 8, SP, FP
|
||||
|
||||
q1 := p
|
||||
// copy DUFFZERO from q1 to q4
|
||||
q4 := obj.Appendp(p, c.newprog)
|
||||
q4.Pos = p.Pos
|
||||
q4.As = obj.ADUFFZERO
|
||||
q4.To = p.To
|
||||
|
||||
q1.As = AADR
|
||||
q1.From.Type = obj.TYPE_BRANCH
|
||||
q1.To.Type = obj.TYPE_REG
|
||||
q1.To.Reg = REG_R27
|
||||
|
||||
q2 := obj.Appendp(q1, c.newprog)
|
||||
q2.Pos = p.Pos
|
||||
q2.As = ASTP
|
||||
q2.From.Type = obj.TYPE_REGREG
|
||||
q2.From.Reg = REGFP
|
||||
q2.From.Offset = int64(REG_R27)
|
||||
q2.To.Type = obj.TYPE_MEM
|
||||
q2.To.Reg = REGSP
|
||||
q2.To.Offset = -24
|
||||
|
||||
// maintain FP for DUFFZERO
|
||||
q3 := obj.Appendp(q2, c.newprog)
|
||||
q3.Pos = p.Pos
|
||||
q3.As = ASUB
|
||||
q3.From.Type = obj.TYPE_CONST
|
||||
q3.From.Offset = 24
|
||||
q3.Reg = REGSP
|
||||
q3.To.Type = obj.TYPE_REG
|
||||
q3.To.Reg = REGFP
|
||||
|
||||
q5 := obj.Appendp(q4, c.newprog)
|
||||
q5.Pos = p.Pos
|
||||
q5.As = ASUB
|
||||
q5.From.Type = obj.TYPE_CONST
|
||||
q5.From.Offset = 8
|
||||
q5.Reg = REGSP
|
||||
q5.To.Type = obj.TYPE_REG
|
||||
q5.To.Reg = REGFP
|
||||
q1.From.SetTarget(q5)
|
||||
p = q5
|
||||
}
|
||||
|
||||
if p.To.Type == obj.TYPE_REG && p.To.Reg == REGSP && p.Spadj == 0 {
|
||||
f := c.cursym.Func()
|
||||
if f.FuncFlag&abi.FuncFlagSPWrite == 0 {
|
||||
|
|
|
|||
|
|
@ -1,267 +0,0 @@
|
|||
// Code generated by mkduff.go; DO NOT EDIT.
|
||||
// Run go generate from src/runtime to update.
|
||||
// See mkduff.go for comments.
|
||||
|
||||
#include "textflag.h"
|
||||
|
||||
TEXT runtime·duffzero<ABIInternal>(SB), NOSPLIT|NOFRAME, $0-0
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP.P (ZR, ZR), 16(R20)
|
||||
STP (ZR, ZR), (R20)
|
||||
RET
|
||||
|
||||
TEXT runtime·duffcopy<ABIInternal>(SB), NOSPLIT|NOFRAME, $0-0
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
LDP.P 16(R20), (R26, R27)
|
||||
STP.P (R26, R27), 16(R21)
|
||||
|
||||
RET
|
||||
|
|
@ -35,7 +35,6 @@ func main() {
|
|||
gen("amd64", notags, zeroAMD64, copyAMD64)
|
||||
gen("386", notags, zero386, copy386)
|
||||
gen("arm", notags, zeroARM, copyARM)
|
||||
gen("arm64", notags, zeroARM64, copyARM64)
|
||||
gen("loong64", notags, zeroLOONG64, copyLOONG64)
|
||||
gen("ppc64x", tagsPPC64x, zeroPPC64x, copyPPC64x)
|
||||
gen("mips64x", tagsMIPS64x, zeroMIPS64x, copyMIPS64x)
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue