[master] 0bea9b1b5 vcc: retire the now unused procprivhead facility

[Nils Goroll]

commit 0bea9b1b5867aec3bfcaea26404601e385d5b603
Author: Nils Goroll <nils.goroll at uplex.de>
Date:   Wed Feb 28 11:55:27 2024 +0100

    vcc: retire the now unused procprivhead facility
    
    We no longer need to mark used vmods in subroutines (see previous
    commit)

diff --git a/lib/libvcc/vcc_compile.c b/lib/libvcc/vcc_compile.c
index f3f9a2d70..082205a89 100644
--- a/lib/libvcc/vcc_compile.c
+++ b/lib/libvcc/vcc_compile.c
@@ -156,8 +156,6 @@ vcc_NewProc(struct vcc *tl, struct symbol *sym)
 	AN(p);
 	VTAILQ_INIT(&p->calls);
 	VTAILQ_INIT(&p->uses);
-	VTAILQ_INIT(&p->priv_tasks);
-	VTAILQ_INIT(&p->priv_tops);
 	VTAILQ_INSERT_TAIL(&tl->procs, p, list);
 	p->prologue = VSB_new_auto();
 	AN(p->prologue);
diff --git a/lib/libvcc/vcc_compile.h b/lib/libvcc/vcc_compile.h
index acd997281..93fb613c8 100644
--- a/lib/libvcc/vcc_compile.h
+++ b/lib/libvcc/vcc_compile.h
@@ -207,7 +207,6 @@ struct symbol {
 };
 
 VTAILQ_HEAD(tokenhead, token);
-VTAILQ_HEAD(procprivhead, procpriv);
 
 struct proc {
 	unsigned		magic;
@@ -215,8 +214,6 @@ struct proc {
 	const struct method	*method;
 	VTAILQ_HEAD(,proccall)	calls;
 	VTAILQ_HEAD(,procuse)	uses;
-	struct procprivhead	priv_tasks;
-	struct procprivhead	priv_tops;
 	VTAILQ_ENTRY(proc)	list;
 	struct token		*name;
 	unsigned		ret_bitmap;
@@ -483,8 +480,6 @@ extern const struct xrefuse XREF_ACTION[1];
 void vcc_AddUses(struct vcc *, const struct token *, const struct token *,
     const struct symbol *sym, const struct xrefuse *use);
 int vcc_CheckUses(struct vcc *tl);
-const char *vcc_MarkPriv(struct vcc *, struct procprivhead *,
-    const char *);
 
 #define ERRCHK(tl)      do { if ((tl)->err) return; } while (0)
 #define ErrInternal(tl) vcc__ErrInternal(tl, __func__, __LINE__)
diff --git a/lib/libvcc/vcc_xref.c b/lib/libvcc/vcc_xref.c
index 035c42cfb..6f72576a0 100644
--- a/lib/libvcc/vcc_xref.c
+++ b/lib/libvcc/vcc_xref.c
@@ -63,11 +63,6 @@ struct procuse {
 	struct proc		*fm;
 };
 
-struct procpriv {
-	VTAILQ_ENTRY(procpriv)	list;
-	const char		*vmod;
-};
-
 /*--------------------------------------------------------------------*/
 
 static void
@@ -467,28 +462,3 @@ VCC_XrefTable(struct vcc *tl)
 	Fc(tl, 0, "*/\n\n");
 #include "vcc_namespace.h"
 }
-
-/*---------------------------------------------------------------------
- * mark vmod as referenced, return NULL if not yet marked, vmod if marked
- */
-
-const char *
-vcc_MarkPriv(struct vcc *tl, struct procprivhead *head,
-    const char *vmod)
-{
-	struct procpriv *pp;
-
-	AN(vmod);
-
-	VTAILQ_FOREACH(pp, head, list) {
-		if (pp->vmod == vmod)
-			return (vmod);
-		AN(strcmp(pp->vmod, vmod));
-	}
-
-	pp = TlAlloc(tl, sizeof *pp);
-	assert(pp != NULL);
-	pp->vmod = vmod;
-	VTAILQ_INSERT_TAIL(head, pp, list);
-	return (NULL);
-}