ref: e38b748d43560b0f8bd5e02e1e8ca6c43fd21777
parent: dcd241e8497b68c23dde812f9cd85f5d08f990a9
author: Ori Bernstein <ori@eigenstate.org>
date: Wed Aug 16 21:28:05 EDT 2023
6c: fix embedded struct conversion codegen
With code like:
struct Foo{ int x; }
struct Aggr{ int a; Foo; }
it's possible to assign to the Foo in the Aggr:
Foo x = someaggr();
when removing the rathole, the code to adjust
the offset in this case was lost; bring it
back.
--- a/sys/src/cmd/6c/cgen.c
+++ b/sys/src/cmd/6c/cgen.c
@@ -1024,6 +1024,8 @@
diag(n, "DOT and no offset");
break;
}
+ nod1.xoffset += (long)r->vconst;
+ nod1.type = n->type;
cgen(&nod, nn);
break;
@@ -1430,6 +1432,8 @@
diag(n, "DOT and no offset");
break;
}
+ nod1.xoffset += (long)r->vconst;
+ nod1.type = n->type;
sugen(&nod1, nn, w);
break;
--
⑨