1 files changed, 50 insertions, 0 deletions
diff --git a/test/Sema/missing-field-initializers.c b/test/Sema/missing-field-initializers.c
new file mode 100644
index 0000000..8281914
--- /dev/null
+++ b/test/Sema/missing-field-initializers.c
@@ -0,0 +1,50 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -Wmissing-field-initializers %s
+
+// This was PR4808.
+
+struct Foo { int a, b; };
+
+struct Foo foo0 = { 1 }; // expected-warning {{missing field 'b' initializer}}
+struct Foo foo1 = { .a = 1 }; // designator avoids MFI warning
+struct Foo foo2 = { .b = 1 }; // designator avoids MFI warning
+
+struct Foo bar0[] = {
+  { 1,2 },
+  { 1 },   // expected-warning {{missing field 'b' initializer}}
+  { 1,2 }
+};
+
+struct Foo bar1[] = {
+  1, 2,
+  1, 2,
+  1
+}; // expected-warning {{missing field 'b' initializer}}
+
+struct One { int a; int b; };
+struct Two { float c; float d; float e; };
+
+struct Three {
+    union {
+        struct One one;
+        struct Two two;
+    } both;
+};
+
+struct Three t0 = {
+    { .one = { 1, 2 } }
+};
+struct Three t1 = {
+    { .two = { 1.0f, 2.0f, 3.0f } }
+};
+
+struct Three data[] = {
+  { { .one = { 1, 2 } } },
+  { { .one = { 1 } } }, // expected-warning {{missing field 'b' initializer}}
+  { { .two = { 1.0f, 2.0f, 3.0f } } },
+  { { .two = { 1.0f, 2.0f } } } // expected-warning {{missing field 'e' initializer}}
+};
+
+struct { int:5; int a; int:5; int b; int:5 } noNamedImplicit[] = {
+  { 1, 2 },
+  { 1 } // expected-warning {{missing field 'b' initializer}}
+};