extravar.tree

来自「Mac OS X 10.4.9 for x86 Source Code gcc」· TREE 代码 · 共 14 行

// { dg-do compile }
// { dg-options "-fdump-tree-vars -O1 -Wunused-variable" }
external_definition int bar (int aaa, int ddd);

static int foo = -3;  // { dg-warning "defined but not used" }

bar
{
	automatic int ccc;

	return aaa + ddd + +3;
}
// { dg-final { scan-tree-dump-not "ccc" "vars" } }