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cmd/internal/obj/arm64: provide and use an oprrrr function

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Provide a four register version of oprrr, which takes an additional 'ra'
register. Use this instead of oprrr where appropriate.

Change-Id: I8882957a83c2b08e407f37a37c61864cd920bbc9
Reviewed-on: https://go-review.googlesource.com/c/go/+/471519
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
This commit is contained in:
Joel Sing 2023-01-08 04:08:29 +11:00
parent f90f3cfcf7
commit 4f5863c2ce
1 changed files with 7 additions and 7 deletions
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14
src/cmd/internal/obj/arm64/asm7.go
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@ -3782,8 +3782,7 @@ func (c *ctxt7) asmout(p *obj.Prog, out []uint32) (count int) {
ra = REGZERO
}
}
o1 = c.oprrr(p, p.As, rt, r, rf)
o1 |= uint32(ra&31) << 10
o1 = c.oprrrr(p, p.As, rt, r, rf, ra)
case 16: /* XremY R[,R],R -> XdivY; XmsubY */
rt, r, rf := p.To.Reg, p.Reg, p.From.Reg
@ -3791,9 +3790,8 @@ func (c *ctxt7) asmout(p *obj.Prog, out []uint32) (count int) {
r = rt
}
o1 = c.oprrr(p, p.As, REGTMP, r, rf)
o2 = c.oprrr(p, AMSUBW, rt, REGTMP, rf)
o2 = c.oprrrr(p, AMSUBW, rt, REGTMP, rf, r)
o2 |= o1 & (1 << 31) /* same size */
o2 |= uint32(r&31) << 10
case 17: /* op Rm,[Rn],Rd; default Rn=ZR */
rt, r, rf := p.To.Reg, p.Reg, p.From.Reg
@ -5763,9 +5761,7 @@ func (c *ctxt7) asmout(p *obj.Prog, out []uint32) (count int) {
break
}
o1 = c.oprrr(p, p.As, p.To.Reg, p.GetFrom3().Reg, p.Reg)
ra := int(p.From.Reg)
o1 |= uint32(ra&31) << 10
o1 = c.oprrrr(p, p.As, p.To.Reg, p.GetFrom3().Reg, p.Reg, p.From.Reg)
case 104: /* vxar $imm4, Vm.<T>, Vn.<T>, Vd.<T> */
af := ((p.GetFrom3().Reg) >> 5) & 15
@ -6576,6 +6572,10 @@ func (c *ctxt7) oprrr(p *obj.Prog, a obj.As, rd, rn, rm int16) uint32 {
return op
}
func (c *ctxt7) oprrrr(p *obj.Prog, a obj.As, rd, rn, rm, ra int16) uint32 {
return c.oprrr(p, a, rd, rn, rm) | uint32(ra&0x1f)<<10
}
/*
* imm -> Rd
* imm op Rn -> Rd