Improve function decl merging, patch by Oliver Hunt!

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@44253 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 29 insertions, 0 deletions

diff --git a/test/Sema/predefined-function.c b/test/Sema/predefined-function.c
new file mode 100644
index 0000000000..bca25fb995
--- /dev/null
+++ b/test/Sema/predefined-function.c
@@ -0,0 +1,29 @@
+// RUN: clang -fsyntax-only -verify -pedantic %s
+ 
+int foo();
+int foo()
+{
+	return 0;	
+}
+
+int bar();
+int bar(int i) // expected-error {{previous definition is here}}
+{
+	return 0;
+}
+int bar() // expected-error {{redefinition of 'bar'}}
+{
+	return 0;
+}
+
+int foobar(int); // expected-error {{previous definition is here}}
+int foobar() // expected-error {{redefinition of 'foobar'}}
+{
+	return 0;
+}
+
+int wibble(); // expected-error {{previous definition is here}}
+float wibble() // expected-error {{redefinition of 'wibble'}}
+{
+	return 0.0f;
+}