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[dev.cc] cmd/internal/obj, cmd/internal/gc, new6g: reconvert

Browse source 
Reconvert using rsc.io/c2go rev 27b3f59.

Changes to converter:
 - fatal does not return, so no fallthrough after fatal in switch
 - many more function results and variables identified as bool
 - simplification of negated boolean expressions

Change-Id: I3bc67da5e46cb7ee613e230cf7e9533036cc870b
Reviewed-on: https://go-review.googlesource.com/5171
Reviewed-by: Josh Bleecher Snyder <josharian@gmail.com>
This commit is contained in:
Russ Cox 2015-02-17 22:13:49 -05:00
parent 786825c5e8
commit dc7b54bed2
67 changed files with 2410 additions and 2509 deletions
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21
src/cmd/internal/gc/range.go
View file

@ -43,7 +43,7 @@ func typecheckrange(n *Node) {
}
}
if Isptr[t.Etype] != 0 && Isfixedarray(t.Type) != 0 {
if Isptr[t.Etype] != 0 && Isfixedarray(t.Type) {
t = t.Type
}
n.Type = t
@ -63,7 +63,7 @@ func typecheckrange(n *Node) {
t2 = t.Type
case TCHAN:
if !(t.Chan&Crecv != 0) {
if t.Chan&Crecv == 0 {
Yyerror("invalid operation: range %v (receive from send-only type %v)", Nconv(n.Right, 0), Tconv(n.Right.Type, 0))
goto out
}
@ -184,7 +184,6 @@ func walkrange(n *Node) {
switch t.Etype {
default:
Fatal("walkrange")
fallthrough
// Lower n into runtime·memclr if possible, for
// fast zeroing of slices and arrays (issue 5373).
@ -196,8 +195,8 @@ func walkrange(n *Node) {
//
// in which the evaluation of a is side-effect-free.
case TARRAY:
if !(Debug['N'] != 0) {
if !(flag_race != 0) {
if Debug['N'] == 0 {
if flag_race == 0 {
if v1 != nil {
if v2 == nil {
if n.Nbody != nil {
@ -206,10 +205,10 @@ func walkrange(n *Node) {
tmp = n.Nbody.N // first statement of body
if tmp.Op == OAS {
if tmp.Left.Op == OINDEX {
if samesafeexpr(tmp.Left.Left, a) != 0 {
if samesafeexpr(tmp.Left.Right, v1) != 0 {
if samesafeexpr(tmp.Left.Left, a) {
if samesafeexpr(tmp.Left.Right, v1) {
if t.Type.Width > 0 {
if iszero(tmp.Right) != 0 {
if iszero(tmp.Right) {
// Convert to
// if len(a) != 0 {
// hp = &a[0]
@ -227,7 +226,7 @@ func walkrange(n *Node) {
hp = temp(Ptrto(Types[TUINT8]))
tmp = Nod(OINDEX, a, Nodintconst(0))
tmp.Bounded = 1
tmp.Bounded = true
tmp = Nod(OADDR, tmp, nil)
tmp = Nod(OCONVNOP, tmp, nil)
tmp.Type = Ptrto(Types[TUINT8])
@ -282,7 +281,7 @@ func walkrange(n *Node) {
if v2 != nil {
hp = temp(Ptrto(n.Type.Type))
tmp = Nod(OINDEX, ha, Nodintconst(0))
tmp.Bounded = 1
tmp.Bounded = true
init = list(init, Nod(OAS, hp, Nod(OADDR, tmp, nil)))
}
@ -369,7 +368,7 @@ func walkrange(n *Node) {
}
hb = temp(Types[TBOOL])
n.Ntest = Nod(ONE, hb, Nodbool(0))
n.Ntest = Nod(ONE, hb, Nodbool(false))
a = Nod(OAS2RECV, nil, nil)
a.Typecheck = 1
a.List = list(list1(hv1), hb)