1 files changed, 82 insertions, 0 deletions
diff --git a/test/CodeGen/enable_if.c b/test/CodeGen/enable_if.c
new file mode 100644
index 000000000000..f863d80c14ab
--- /dev/null
+++ b/test/CodeGen/enable_if.c
@@ -0,0 +1,82 @@
+// RUN: %clang_cc1 -emit-llvm %s -o - -triple=x86_64-pc-linux-gnu | FileCheck %s
+
+// Verifying that we do, in fact, select the correct function in the following
+// cases.
+
+void foo(int m) __attribute__((overloadable, enable_if(m > 0, "")));
+void foo(int m) __attribute__((overloadable));
+
+// CHECK-LABEL: define void @test1
+void test1() {
+  // CHECK: store void (i32)* @_Z3fooi
+  void (*p)(int) = foo;
+  // CHECK: store void (i32)* @_Z3fooi
+  void (*p2)(int) = &foo;
+  // CHECK: store void (i32)* @_Z3fooi
+  p = foo;
+  // CHECK: store void (i32)* @_Z3fooi
+  p = &foo;
+
+  // CHECK: store i8* bitcast (void (i32)* @_Z3fooi to i8*)
+  void *vp1 = (void*)&foo;
+  // CHECK: store i8* bitcast (void (i32)* @_Z3fooi to i8*)
+  void *vp2 = (void*)foo;
+  // CHECK: store i8* bitcast (void (i32)* @_Z3fooi to i8*)
+  vp1 = (void*)&foo;
+  // CHECK: store i8* bitcast (void (i32)* @_Z3fooi to i8*)
+  vp1 = (void*)foo;
+}
+
+void bar(int m) __attribute__((overloadable, enable_if(m > 0, "")));
+void bar(int m) __attribute__((overloadable, enable_if(1, "")));
+// CHECK-LABEL: define void @test2
+void test2() {
+  // CHECK: store void (i32)* @_Z3barUa9enable_ifIXLi1EEEi
+  void (*p)(int) = bar;
+  // CHECK: store void (i32)* @_Z3barUa9enable_ifIXLi1EEEi
+  void (*p2)(int) = &bar;
+  // CHECK: store void (i32)* @_Z3barUa9enable_ifIXLi1EEEi
+  p = bar;
+  // CHECK: store void (i32)* @_Z3barUa9enable_ifIXLi1EEEi
+  p = &bar;
+
+  // CHECK: store i8* bitcast (void (i32)* @_Z3barUa9enable_ifIXLi1EEEi to i8*)
+  void *vp1 = (void*)&bar;
+  // CHECK: store i8* bitcast (void (i32)* @_Z3barUa9enable_ifIXLi1EEEi to i8*)
+  void *vp2 = (void*)bar;
+  // CHECK: store i8* bitcast (void (i32)* @_Z3barUa9enable_ifIXLi1EEEi to i8*)
+  vp1 = (void*)&bar;
+  // CHECK: store i8* bitcast (void (i32)* @_Z3barUa9enable_ifIXLi1EEEi to i8*)
+  vp1 = (void*)bar;
+}
+
+void baz(int m) __attribute__((overloadable, enable_if(1, "")));
+void baz(int m) __attribute__((overloadable));
+// CHECK-LABEL: define void @test3
+void test3() {
+  // CHECK: store void (i32)* @_Z3bazUa9enable_ifIXLi1EEEi
+  void (*p)(int) = baz;
+  // CHECK: store void (i32)* @_Z3bazUa9enable_ifIXLi1EEEi
+  void (*p2)(int) = &baz;
+  // CHECK: store void (i32)* @_Z3bazUa9enable_ifIXLi1EEEi
+  p = baz;
+  // CHECK: store void (i32)* @_Z3bazUa9enable_ifIXLi1EEEi
+  p = &baz;
+}
+
+
+const int TRUEFACTS = 1;
+void qux(int m) __attribute__((overloadable, enable_if(1, ""),
+                               enable_if(TRUEFACTS, "")));
+void qux(int m) __attribute__((overloadable, enable_if(1, "")));
+// CHECK-LABEL: define void @test4
+void test4() {
+  // CHECK: store void (i32)* @_Z3quxUa9enable_ifIXLi1EEXL_Z9TRUEFACTSEEEi
+  void (*p)(int) = qux;
+  // CHECK: store void (i32)* @_Z3quxUa9enable_ifIXLi1EEXL_Z9TRUEFACTSEEEi
+  void (*p2)(int) = &qux;
+  // CHECK: store void (i32)* @_Z3quxUa9enable_ifIXLi1EEXL_Z9TRUEFACTSEEEi
+  p = qux;
+  // CHECK: store void (i32)* @_Z3quxUa9enable_ifIXLi1EEXL_Z9TRUEFACTSEEEi
+  p = &qux;
+}