[analyzer] Add a test forgotten in r339088.

Differential Revision: https://reviews.llvm.org/D50363

llvm-svn: 339726

diff --git a/clang/test/Analysis/std-c-library-functions-inlined.c b/clang/test/Analysis/std-c-library-functions-inlined.c
new file mode 100644 (file)
index 0000000..5277a6e
--- /dev/null
+++ b/clang/test/Analysis/std-c-library-functions-inlined.c
@@ -0,0 +1,17 @@
+// RUN: %clang_analyze_cc1 -analyzer-checker=unix.StdCLibraryFunctions -verify %s
+// RUN: %clang_analyze_cc1 -triple i686-unknown-linux -analyzer-checker=unix.StdCLibraryFunctions -verify %s
+// RUN: %clang_analyze_cc1 -triple x86_64-unknown-linux -analyzer-checker=unix.StdCLibraryFunctions -verify %s
+// RUN: %clang_analyze_cc1 -triple armv7-a15-linux -analyzer-checker=unix.StdCLibraryFunctions -verify %s
+// RUN: %clang_analyze_cc1 -triple thumbv7-a15-linux -analyzer-checker=unix.StdCLibraryFunctions -verify %s
+
+// This test tests crashes that occur when standard functions are available
+// for inlining.
+
+// expected-no-diagnostics
+
+int isdigit(int _) { return !0; }
+void test_redefined_isdigit(int x) {
+  int (*func)(int) = isdigit;
+  for (; func(x);) // no-crash
+    ;
+}