scc

commit d9e75371d9832ae307b06020ea39e0ca8f7bf5ba
parent 416480154b86845ffec424db50b98ee1ff785e0a
Author: Roberto E. Vargas Caballero <k0ga@shike2.com>
Date:   Mon, 30 Dec 2024 19:59:11 +0100

cc2: Make unlink() global

This function can be very useful in some cases when we
want to reuse a node, but keep it out of the list of
statements.

Diffstat:
M
src/cmd/scc-cc/cc2/cc2.h
 | 
1
+
M
src/cmd/scc-cc/cc2/node.c
 | 
8
++++----

2 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/src/cmd/scc-cc/cc2/cc2.h b/src/cmd/scc-cc/cc2/cc2.h
@@ -268,6 +268,7 @@ extern Node *delstmt(void);
 extern Node *insstmt(Node *, Node *);
 extern void delrange(Node *, Node *);
 extern Node *waftstmt(Node *);
+extern Node *unlinkstmt(Node *);
 
 /* symbol.c */
 #define TMPSYM  0
diff --git a/src/cmd/scc-cc/cc2/node.c b/src/cmd/scc-cc/cc2/node.c
@@ -84,8 +84,8 @@ insstmt(Node *np, Node *at)
 	return np;
 }
 
-static Node *
-unlink(Node *np)
+Node *
+unlinkstmt(Node *np)
 {
 	Node *next, *prev;
 
@@ -112,7 +112,7 @@ waftstmt(Node *at)
 	if (prev == at)
 		return np;
 	curstmt = prev;
-	return insstmt(unlink(np), at);
+	return insstmt(unlinkstmt(np), at);
 }
 
 Node *
@@ -128,7 +128,7 @@ delstmt(void)
 	Node *next;
 
 	next = curstmt->next;
-	deltree(unlink(curstmt));
+	deltree(unlinkstmt(curstmt));
 	return curstmt = next;
 }