================
@@ -1440,4 +1471,48 @@ TEST_F(PointerFlowTest, ReturnRefPtr) {
EXPECT_EQ(*Sum, makeEdges(__LINE__, {{{"foo", 1U, true}, {"f", 1U, true}}}));
}
+//////////////////////////////////////////////////////////////
+// System-header contributor opt-out gate. //
+// Spec: tu-summary-extraction, //
+// "System-header contributor opt-out flag". //
+//////////////////////////////////////////////////////////////
+
+// Default: ExtractFromSystemHeaders == true. A function decl in a
+// `#pragma clang system_header`-marked included header IS enumerated
+// as a contributor and produces an EntitySummary.
+TEST_F(PointerFlowTest, SystemHeader_ExtractDefault) {
+ const char *SysHeader = "int *sys_gp; void sys_fn(int *p) { sys_gp = p; }\n";
+ const char *Main = R"cpp(
+ #include <sys.h>
+ int *user_gp;
+ void user_fn(int *p) { user_gp = p; }
+ )cpp";
+ ASSERT_TRUE(setUpTestWithSystemHeader(Main, SysHeader,
+ /*ExtractFromSystemHeaders=*/true));
+ // sys_fn is in a system header but the default (extract-true) enumerates
+ // it as a contributor — summary is non-null.
+ EXPECT_NE(getEntitySummary("sys_fn"), nullptr);
+ // user_fn is enumerated either way (positive control).
+ EXPECT_NE(getEntitySummary("user_fn"), nullptr);
+}
+
+// Opt-out: ExtractFromSystemHeaders == false. The system-header decl
+// is NOT enumerated; getEntitySummary returns nullptr for it. The
+// user-source decl is still enumerated (gate is per-decl, not TU-wide).
----------------
steakhal wrote:
```suggestion
```
https://github.com/llvm/llvm-project/pull/205446
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