Warn on "void f(int a[10]) { sizeof(a); }"
llvm-svn: 133036
diff --git a/clang/test/Sema/warn-sizeof-arrayarg.c b/clang/test/Sema/warn-sizeof-arrayarg.c
new file mode 100644
index 0000000..ba8a5fa
--- /dev/null
+++ b/clang/test/Sema/warn-sizeof-arrayarg.c
@@ -0,0 +1,30 @@
+// RUN: %clang_cc1 -fsyntax-only -verify %s
+
+typedef int Arr[10];
+
+typedef int trungl_int;
+
+void f(int a[10], Arr arr) { // \
+// expected-note {{declared here}} \
+// expected-note {{declared here}} \
+// expected-note {{declared here}} \
+// expected-note {{declared here}}
+
+ /* Should warn. */
+ (void)sizeof(a); // \
+ // expected-warning{{sizeof on array function parameter will return size of 'int *' instead of 'int [10]'}}
+ (void)sizeof((((a)))); // \
+ // expected-warning{{sizeof on array function parameter will return size of 'int *' instead of 'int [10]'}}
+ (void)sizeof a; // \
+ // expected-warning{{sizeof on array function parameter will return size of 'int *' instead of 'int [10]'}}
+ (void)sizeof arr; // \
+ // expected-warning{{sizeof on array function parameter will return size of 'int *' instead of 'Arr' (aka 'int [10]')}}
+
+ /* Shouldn't warn. */
+ int b[10];
+ (void)sizeof b;
+ Arr brr;
+ (void)sizeof brr;
+ (void)sizeof(Arr);
+ (void)sizeof(int);
+}