diff options
Diffstat (limited to 'src/cmd/internal/gc/unsafe.go')
| -rw-r--r-- | src/cmd/internal/gc/unsafe.go | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/src/cmd/internal/gc/unsafe.go b/src/cmd/internal/gc/unsafe.go index 3970468285..7f0a33f2a7 100644 --- a/src/cmd/internal/gc/unsafe.go +++ b/src/cmd/internal/gc/unsafe.go @@ -15,19 +15,11 @@ import "cmd/internal/obj" */ func unsafenmagic(nn *Node) *Node { var r *Node - var n *Node - var base *Node - var r1 *Node var s *Sym - var t *Type - var tr *Type var v int64 - var val Val - var fn *Node - var args *NodeList - fn = nn.Left - args = nn.List + fn := nn.Left + args := nn.List if safemode != 0 || fn == nil || fn.Op != ONAME { goto no @@ -50,7 +42,7 @@ func unsafenmagic(nn *Node) *Node { if s.Name == "Sizeof" { typecheck(&r, Erv) defaultlit(&r, nil) - tr = r.Type + tr := r.Type if tr == nil { goto bad } @@ -70,7 +62,7 @@ func unsafenmagic(nn *Node) *Node { // first to track it correctly. typecheck(&r.Left, Erv) - base = r.Left + base := r.Left typecheck(&r, Erv) switch r.Op { case ODOT, @@ -89,6 +81,7 @@ func unsafenmagic(nn *Node) *Node { v = 0 // add offsets for inserted dots. + var r1 *Node for r1 = r; r1.Left != base; r1 = r1.Left { switch r1.Op { case ODOT: @@ -112,13 +105,13 @@ func unsafenmagic(nn *Node) *Node { if s.Name == "Alignof" { typecheck(&r, Erv) defaultlit(&r, nil) - tr = r.Type + tr := r.Type if tr == nil { goto bad } // make struct { byte; T; } - t = typ(TSTRUCT) + t := typ(TSTRUCT) t.Type = typ(TFIELD) t.Type.Type = Types[TUINT8] @@ -149,11 +142,12 @@ yes: // any side effects disappear; ignore init ret: + var val Val val.Ctype = CTINT val.U.Xval = new(Mpint) Mpmovecfix(val.U.Xval, v) - n = Nod(OLITERAL, nil, nil) + n := Nod(OLITERAL, nil, nil) n.Orig = nn n.Val = val n.Type = Types[TUINTPTR] |