map previously ignored __attribute((malloc)) to noalias attribute of llvm function's return

llvm-svn: 78541

1 files changed, 16 insertions, 0 deletions

diff --git a/clang/test/Sema/attr-malloc.c b/clang/test/Sema/attr-malloc.c
new file mode 100644
index 00000000000..8603cc05a54
--- /dev/null
+++ b/clang/test/Sema/attr-malloc.c
@@ -0,0 +1,16 @@
+// RUN: clang-cc -verify -fsyntax-only %s &&
+// RUN: clang-cc -emit-llvm -o %t %s &&
+
+#include <stdlib.h>
+
+int no_vars __attribute((malloc)); // expected-warning {{only applies to function types}}
+
+__attribute((malloc))
+void * xalloc(unsigned n) { return malloc(n); }
+// RUN: grep 'define noalias .* @xalloc(' %t &&
+
+#define __malloc_like __attribute((__malloc__))
+void * xalloc2(unsigned) __malloc_like;
+void * xalloc2(unsigned n) { return malloc(n); }
+// RUN: grep 'define noalias .* @xalloc2(' %t
+