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[dev.regabi] cmd/compile: introduce cmd/compile/internal/base [generated]

Browse source 
Move Flag, Debug, Ctxt, Exit, and error messages to
new package cmd/compile/internal/base.

These are the core functionality that everything in gc uses
and which otherwise prevent splitting any other code
out of gc into different packages.

A minor milestone: the compiler source code
no longer contains the string "yy".

[git-generate]
cd src/cmd/compile/internal/gc
rf '
        mv atExit AtExit
        mv Ctxt atExitFuncs AtExit Exit base.go

        mv lineno Pos
        mv linestr FmtPos
        mv flusherrors FlushErrors
        mv yyerror Errorf
        mv yyerrorl ErrorfAt
        mv yyerrorv ErrorfVers
        mv noder.yyerrorpos noder.errorAt
        mv Warnl WarnfAt
        mv errorexit ErrorExit

        mv base.go debug.go flag.go print.go cmd/compile/internal/base
'

: # update comments
sed -i '' 's/yyerrorl/ErrorfAt/g; s/yyerror/Errorf/g' *.go

: # bootstrap.go is not built by default so invisible to rf
sed -i '' 's/Fatalf/base.Fatalf/' bootstrap.go
goimports -w bootstrap.go

: # update cmd/dist to add internal/base
cd ../../../dist
sed -i '' '/internal.amd64/a\
	"cmd/compile/internal/base",
' buildtool.go
gofmt -w buildtool.go

Change-Id: I59903c7084222d6eaee38823fd222159ba24a31a
Reviewed-on: https://go-review.googlesource.com/c/go/+/272250
Trust: Russ Cox <rsc@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>
This commit is contained in:
Russ Cox 2020-11-19 20:49:23 -05:00
parent eb3086e5a8
commit 26b66fd60b
67 changed files with 1626 additions and 1542 deletions
Download patch file Download diff file Expand all files Collapse all files

33
src/cmd/compile/internal/gc/gsubr.go
View file

@ -31,6 +31,7 @@
package gc
import (
"cmd/compile/internal/base"
"cmd/compile/internal/ssa"
"cmd/internal/obj"
"cmd/internal/objabi"
@ -57,8 +58,8 @@ type Progs struct {
// worker indicates which of the backend workers will use the Progs.
func newProgs(fn *Node, worker int) *Progs {
pp := new(Progs)
if Ctxt.CanReuseProgs() {
sz := len(sharedProgArray) / Flag.LowerC
if base.Ctxt.CanReuseProgs() {
sz := len(sharedProgArray) / base.Flag.LowerC
pp.progcache = sharedProgArray[sz*worker : sz*(worker+1)]
}
pp.curfn = fn
@ -83,19 +84,19 @@ func (pp *Progs) NewProg() *obj.Prog {
} else {
p = new(obj.Prog)
}
p.Ctxt = Ctxt
p.Ctxt = base.Ctxt
return p
}
// Flush converts from pp to machine code.
func (pp *Progs) Flush() {
plist := &obj.Plist{Firstpc: pp.Text, Curfn: pp.curfn}
obj.Flushplist(Ctxt, plist, pp.NewProg, Ctxt.Pkgpath)
obj.Flushplist(base.Ctxt, plist, pp.NewProg, base.Ctxt.Pkgpath)
}
// Free clears pp and any associated resources.
func (pp *Progs) Free() {
if Ctxt.CanReuseProgs() {
if base.Ctxt.CanReuseProgs() {
// Clear progs to enable GC and avoid abuse.
s := pp.progcache[:pp.cacheidx]
for i := range s {
@ -133,8 +134,8 @@ func (pp *Progs) Prog(as obj.As) *obj.Prog {
pp.clearp(pp.next)
p.Link = pp.next
if !pp.pos.IsKnown() && Flag.K != 0 {
Warn("prog: unknown position (line 0)")
if !pp.pos.IsKnown() && base.Flag.K != 0 {
base.Warn("prog: unknown position (line 0)")
}
p.As = as
@ -174,7 +175,7 @@ func (pp *Progs) Appendpp(p *obj.Prog, as obj.As, ftype obj.AddrType, freg int16
func (pp *Progs) settext(fn *Node) {
if pp.Text != nil {
Fatalf("Progs.settext called twice")
base.Fatalf("Progs.settext called twice")
}
ptxt := pp.Prog(obj.ATEXT)
pp.Text = ptxt
@ -193,7 +194,7 @@ func (pp *Progs) settext(fn *Node) {
// called for both functions with bodies and functions without bodies.
func (f *Func) initLSym(hasBody bool) {
if f.lsym != nil {
Fatalf("Func.initLSym called twice")
base.Fatalf("Func.initLSym called twice")
}
if nam := f.Nname; !nam.isBlank() {
@ -215,7 +216,7 @@ func (f *Func) initLSym(hasBody bool) {
// using the expected ABI.
want := obj.ABIInternal
if f.lsym.ABI() != want {
Fatalf("function symbol %s has the wrong ABI %v, expected %v", f.lsym.Name, f.lsym.ABI(), want)
base.Fatalf("function symbol %s has the wrong ABI %v, expected %v", f.lsym.Name, f.lsym.ABI(), want)
}
}
@ -249,7 +250,7 @@ func (f *Func) initLSym(hasBody bool) {
}
asym.SetABI(aliasABI)
asym.Set(obj.AttrDuplicateOK, true)
Ctxt.ABIAliases = append(Ctxt.ABIAliases, asym)
base.Ctxt.ABIAliases = append(base.Ctxt.ABIAliases, asym)
}
}
@ -278,14 +279,14 @@ func (f *Func) initLSym(hasBody bool) {
// Clumsy but important.
// See test/recover.go for test cases and src/reflect/value.go
// for the actual functions being considered.
if Ctxt.Pkgpath == "reflect" {
if base.Ctxt.Pkgpath == "reflect" {
switch f.Nname.Sym.Name {
case "callReflect", "callMethod":
flag |= obj.WRAPPER
}
}
Ctxt.InitTextSym(f.lsym, flag)
base.Ctxt.InitTextSym(f.lsym, flag)
}
func ggloblnod(nam *Node) {
@ -298,7 +299,7 @@ func ggloblnod(nam *Node) {
if nam.Type != nil && !nam.Type.HasPointers() {
flags |= obj.NOPTR
}
Ctxt.Globl(s, nam.Type.Width, flags)
base.Ctxt.Globl(s, nam.Type.Width, flags)
if nam.Name.LibfuzzerExtraCounter() {
s.Type = objabi.SLIBFUZZER_EXTRA_COUNTER
}
@ -315,7 +316,7 @@ func ggloblsym(s *obj.LSym, width int32, flags int16) {
s.Set(obj.AttrLocal, true)
flags &^= obj.LOCAL
}
Ctxt.Globl(s, int64(width), int(flags))
base.Ctxt.Globl(s, int64(width), int(flags))
}
func Addrconst(a *obj.Addr, v int64) {
@ -326,7 +327,7 @@ func Addrconst(a *obj.Addr, v int64) {
func Patch(p *obj.Prog, to *obj.Prog) {
if p.To.Type != obj.TYPE_BRANCH {
Fatalf("patch: not a branch")
base.Fatalf("patch: not a branch")
}
p.To.SetTarget(to)
p.To.Offset = to.Pc