[dev.ssa] cmd/compile/internal/gc: Implement ODOT and ODOTPTR in addr.
Change-Id: If8a9d5901fa2141d16b1c8d001761ea62bc23207
Reviewed-on: https://go-review.googlesource.com/12141
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/src/cmd/compile/internal/gc/ssa.go b/src/cmd/compile/internal/gc/ssa.go
index c75dd16..589257b 100644
--- a/src/cmd/compile/internal/gc/ssa.go
+++ b/src/cmd/compile/internal/gc/ssa.go
@@ -673,6 +673,7 @@
}
// addr converts the address of the expression n to SSA, adds it to s and returns the SSA result.
+// The value that the returned Value represents is guaranteed to be non-nil.
func (s *state) addr(n *Node) *ssa.Value {
switch n.Op {
case ONAME:
@@ -716,6 +717,13 @@
s.boundsCheck(i, len)
return s.newValue2(ssa.OpPtrIndex, Ptrto(n.Left.Type.Type), a, i)
}
+ case ODOT:
+ p := s.addr(n.Left)
+ return s.newValue2(ssa.OpAdd, p.Type, p, s.constInt(s.config.Uintptr, n.Xoffset))
+ case ODOTPTR:
+ p := s.expr(n.Left)
+ s.nilCheck(p)
+ return s.newValue2(ssa.OpAdd, p.Type, p, s.constInt(s.config.Uintptr, n.Xoffset))
default:
s.Unimplementedf("addr: bad op %v", Oconv(int(n.Op), 0))
return nil
