scc

commit 75ea93d4e73b3984bc3d74550551b624e84cdf38
parent fde6f21d71a9c3786fa5f89275cbc017b87b0aa9
Author: Quentin Carbonneaux <quentin@c9x.me>
Date:   Fri, 20 Jan 2017 17:26:44 -0500

[cc2-qbe] Do not copy meaningless flags in tmpnode()

These flags can create problems in some places, for example
with arguments:

	int f(unsigned long l) { return l; }

the returned value is included in the list of arguments.

Diffstat:
M
cc2/arch/qbe/cgen.c
 | 
3
+++

1 file changed, 3 insertions(+), 0 deletions(-)
diff --git a/cc2/arch/qbe/cgen.c b/cc2/arch/qbe/cgen.c
@@ -98,12 +98,15 @@ extern Type int32type, uint32type, ptrtype;
 static Node *
 tmpnode(Node *np, Type *tp)
 {
+	char flags;
 	Symbol *sym;
 
 	if (!np)
 		np = newnode(OTMP);
 	sym = getsym(TMPSYM);
 	sym->type = np->type = *tp;
+	flags = tp->flags & ~(PARF|INITF);
+	sym->type.flags = np->type.flags = flags;
 	sym->kind = STMP;
 	np->left = np->right = NULL;
 	np->u.sym = sym;