================
@@ -0,0 +1,87 @@
+// RUN: %clang_cc1 -fsyntax-only -Wunused-but-set-variable -verify -std=c++11
%s
+
+static thread_local int tl_set_unused; // expected-warning {{variable
'tl_set_unused' set but not used}}
+static thread_local int tl_set_and_used;
+thread_local int tl_no_static_set_unused;
+
+void f0() {
+ tl_set_unused = 1;
+ tl_set_and_used = 2;
+ int x = tl_set_and_used;
+ (void)x;
+
+ tl_no_static_set_unused = 3;
+}
+
+namespace test {
+ static int set_unused; // expected-warning {{variable 'set_unused' set but
not used}}
+ static int set_and_used;
+
+ void f1() {
+ set_unused = 1;
+ set_and_used = 2;
+ int x = set_and_used;
+ (void)x;
+ }
+}
+
+namespace outer {
+namespace inner {
+static int nested_unused; // expected-warning {{variable 'nested_unused' set
but not used}}
+void f2() {
+ nested_unused = 5;
+}
+}
+}
+
+// Anonymous namespace
+namespace {
+ static int anon_ns_static_unused; // expected-warning {{variable
'anon_ns_static_unused' set but not used}}
----------------
zwuis wrote:
In anonymous namespaces, all variables have internal linkage, including without
`static`. We should diagnose them.
https://github.com/llvm/llvm-project/pull/178342
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