Add a test case for -ffreestanding that redefines malloc.
Warn that complex numbers are an extension in a freestanding C99
implementation.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@64568 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Sema/implicit-builtin-freestanding.c b/test/Sema/implicit-builtin-freestanding.c
new file mode 100644
index 0000000..f36aa09
--- /dev/null
+++ b/test/Sema/implicit-builtin-freestanding.c
@@ -0,0 +1,4 @@
+// RUN: clang -fsyntax-only -verify -ffreestanding %s
+
+int malloc(int a) { return a; }
+