vendor/clang/clang-trunk-r351319

1 files changed, 20 insertions, 0 deletions

diff --git a/test/Analysis/svalbuilder-float-cast.c b/test/Analysis/svalbuilder-float-cast.c
new file mode 100644
index 0000000000000..0f5760cbfca08
--- /dev/null
+++ b/test/Analysis/svalbuilder-float-cast.c
@@ -0,0 +1,20 @@
+// RUN: %clang_analyze_cc1 -analyzer-checker debug.ExprInspection -verify %s
+void clang_analyzer_denote(int, const char *);
+void clang_analyzer_express(int);
+
+void SymbolCast_of_float_type_aux(int *p) {
+  *p += 0;
+  // FIXME: Ideally, all unknown values should be symbolicated.
+  clang_analyzer_denote(*p, "$x"); // expected-warning{{Not a symbol}}
+
+  *p += 1;
+  // This should NOT be (float)$x + 1. Symbol $x was never casted to float.
+  // FIXME: Ideally, this should be $x + 1.
+  clang_analyzer_express(*p); // expected-warning{{Not a symbol}}
+}
+
+void SymbolCast_of_float_type() {
+  extern float x;
+  void (*f)() = SymbolCast_of_float_type_aux;
+  f(&x);
+}