qbit/go
1
0
Fork 0
mirror of https://github.com/golang/go synced 2024-11-18 08:04:40 -07:00
Code Releases Activity

cmd/compile/internal/ppc64, cmd/compile/internal/ssa: Remove OldArch checks

Browse Source 
Starting in go1.9, the minimum processor requirement for ppc64 is POWER8.
Therefore, the checks for OldArch and the code enabled by it are not necessary
anymore.

Updates #19074

Change-Id: I33d6a78b2462c80d57c5dbcba2e13424630afab4
Reviewed-on: https://go-review.googlesource.com/38404
Run-TryBot: Lynn Boger <laboger@linux.vnet.ibm.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
This commit is contained in:
Carlos Eduardo Seo 2017-03-22 12:25:44 -03:00 committed by Lynn Boger
parent 189053aee2
commit c644a76e1f
2 changed files with 0 additions and 47 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

45
src/cmd/compile/internal/ppc64/ssa.go
View File

@ -765,27 +765,6 @@ func ssaGenValue(s *gc.SSAGenState, v *ssa.Value) {
// rtmp := 1
// isel rt,0,rtmp,!cond // rt is target in ppc asm
if v.Block.Func.Config.OldArch {
p := s.Prog(ppc64.AMOVD)
p.From.Type = obj.TYPE_CONST
p.From.Offset = 1
p.To.Type = obj.TYPE_REG
p.To.Reg = v.Reg()
pb := s.Prog(condOps[v.Op])
pb.To.Type = obj.TYPE_BRANCH
p = s.Prog(ppc64.AMOVD)
p.From.Type = obj.TYPE_CONST
p.From.Offset = 0
p.To.Type = obj.TYPE_REG
p.To.Reg = v.Reg()
p = s.Prog(obj.ANOP)
gc.Patch(pb, p)
break
}
// Modern PPC uses ISEL
p := s.Prog(ppc64.AMOVD)
p.From.Type = obj.TYPE_CONST
p.From.Offset = 1
@ -797,30 +776,6 @@ func ssaGenValue(s *gc.SSAGenState, v *ssa.Value) {
case ssa.OpPPC64FLessEqual, // These include a second branch for EQ -- dealing with NaN prevents REL= to !REL conversion
ssa.OpPPC64FGreaterEqual:
if v.Block.Func.Config.OldArch {
p := s.Prog(ppc64.AMOVW)
p.From.Type = obj.TYPE_CONST
p.From.Offset = 1
p.To.Type = obj.TYPE_REG
p.To.Reg = v.Reg()
pb0 := s.Prog(condOps[v.Op])
pb0.To.Type = obj.TYPE_BRANCH
pb1 := s.Prog(ppc64.ABEQ)
pb1.To.Type = obj.TYPE_BRANCH
p = s.Prog(ppc64.AMOVW)
p.From.Type = obj.TYPE_CONST
p.From.Offset = 0
p.To.Type = obj.TYPE_REG
p.To.Reg = v.Reg()
p = s.Prog(obj.ANOP)
gc.Patch(pb0, p)
gc.Patch(pb1, p)
break
}
// Modern PPC uses ISEL
p := s.Prog(ppc64.AMOVD)
p.From.Type = obj.TYPE_CONST
p.From.Offset = 1

2
src/cmd/compile/internal/ssa/config.go
View File

@ -34,7 +34,6 @@ type Config struct {
noDuffDevice bool // Don't use Duff's device
nacl bool // GOOS=nacl
use387 bool // GO386=387
OldArch bool // True for older versions of architecture, e.g. true for PPC64BE, false for PPC64LE
NeedsFpScratch bool // No direct move between GP and FP register sets
BigEndian bool //
sparsePhiCutoff uint64 // Sparse phi location algorithm used above this #blocks*#variables score
@ -208,7 +207,6 @@ func NewConfig(arch string, types Types, ctxt *obj.Link, optimize bool) *Config
c.hasGReg = true
c.noDuffDevice = obj.GOOS == "darwin" // darwin linker cannot handle BR26 reloc with non-zero addend
case "ppc64":
c.OldArch = true
c.BigEndian = true
fallthrough
case "ppc64le":