1 files changed, 35 insertions, 0 deletions
diff --git a/test/Sema/decl-microsoft-call-conv.c b/test/Sema/decl-microsoft-call-conv.c
new file mode 100644
index 000000000000..5a83b38b192f
--- /dev/null
+++ b/test/Sema/decl-microsoft-call-conv.c
@@ -0,0 +1,35 @@
+// RUN: %clang_cc1 -triple i686-pc-win32 -verify %s
+
+// It's important that this is a .c file.
+
+// This is fine, as CrcGenerateTable*() has a prototype.
+void __fastcall CrcGenerateTableFastcall(void);
+void __fastcall CrcGenerateTableFastcall();
+void __fastcall CrcGenerateTableFastcall() {}
+void __stdcall CrcGenerateTableStdcall(void);
+void __stdcall CrcGenerateTableStdcall();
+void __stdcall CrcGenerateTableStdcall() {}
+void __thiscall CrcGenerateTableThiscall(void);
+void __thiscall CrcGenerateTableThiscall();
+void __thiscall CrcGenerateTableThiscall() {}
+void __pascal CrcGenerateTablePascal(void);
+void __pascal CrcGenerateTablePascal();
+void __pascal CrcGenerateTablePascal() {}
+void __vectorcall CrcGenerateTableVectorcall(void);
+void __vectorcall CrcGenerateTableVectorcall();
+void __vectorcall CrcGenerateTableVectorcall() {}
+
+void __fastcall CrcGenerateTableNoProtoFastcall(); // expected-error{{function with no prototype cannot use the fastcall calling convention}}
+void __stdcall CrcGenerateTableNoProtoStdcall(); // expected-warning{{function with no prototype cannot use the stdcall calling convention}}
+void __thiscall CrcGenerateTableNoProtoThiscall(); // expected-error{{function with no prototype cannot use the thiscall calling convention}}
+void __pascal CrcGenerateTableNoProtoPascal(); // expected-error{{function with no prototype cannot use the pascal calling convention}}
+void __vectorcall CrcGenerateTableNoProtoVectorcall(); // expected-error{{function with no prototype cannot use the vectorcall calling convention}}
+
+void __fastcall CrcGenerateTableNoProtoDefFastcall() {}
+void __stdcall CrcGenerateTableNoProtoDefStdcall() {}
+void __thiscall CrcGenerateTableNoProtoDefThiscall() {}
+void __pascal CrcGenerateTableNoProtoDefPascal() {}
+void __vectorcall CrcGenerateTableNoProtoDefVectorcall() {}
+
+// Regular calling convention is fine.
+void CrcGenerateTableNoProto() {}