CodeGen: tweak CFString emission for COFF targets
The `isa' member was previously not given the correct DLL Storage. Ensure that
we give the `isa' constant `__CFConstantStringClassReference' the correct DLL
storage. Default to dllimport unless an explicit specification gives it a
dllexport storage.
llvm-svn: 271361
diff --git a/clang/test/CodeGen/cfstring-windows.c b/clang/test/CodeGen/cfstring-windows.c
new file mode 100644
index 0000000..e54c860
--- /dev/null
+++ b/clang/test/CodeGen/cfstring-windows.c
@@ -0,0 +1,40 @@
+// RUN: %clang_cc1 -triple thumbv7-windows -fdeclspec -DCF_BUILDING_CF -DDECL -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF-IN-CF-DECL
+// RUN: %clang_cc1 -triple thumbv7-windows -fdeclspec -DCF_BUILDING_CF -DDEFN -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF-IN-CF-DEFN
+// RUN: %clang_cc1 -triple thumbv7-windows -fdeclspec -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF
+// RUN: %clang_cc1 -triple thumbv7-windows -fdeclspec -DEXTERN -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF-EXTERN
+// RUN: %clang_cc1 -triple thumbv7-windows -fdeclspec -DEXTERN_DLLIMPORT -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF-EXTERN-DLLIMPORT
+// RUN: %clang_cc1 -triple thumbv7-windows -fdeclspec -DDLLIMPORT -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF-DLLIMPORT
+
+// RUN: %clang_cc1 -Os -triple thumbv7-windows -fdeclspec -DCF_BUILDING_CF -DDECL -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF-IN-CF-DECL
+// RUN: %clang_cc1 -Os -triple thumbv7-windows -fdeclspec -DCF_BUILDING_CF -DDEFN -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF-IN-CF-DEFN
+// RUN: %clang_cc1 -Os -triple thumbv7-windows -fdeclspec -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF
+// RUN: %clang_cc1 -Os -triple thumbv7-windows -fdeclspec -DEXTERN -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF-EXTERN
+// RUN: %clang_cc1 -Os -triple thumbv7-windows -fdeclspec -DEXTERN_DLLIMPORT -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF-EXTERN-DLLIMPORT
+// RUN: %clang_cc1 -Os -triple thumbv7-windows -fdeclspec -DDLLIMPORT -S -emit-llvm %s -o - | FileCheck %s -check-prefix CHECK-CF-DLLIMPORT
+
+#if defined(CF_BUILDING_CF)
+#if defined(DECL)
+extern __declspec(dllexport) long __CFConstantStringClassReference[];
+#elif defined(DEFN)
+__declspec(dllexport) long __CFConstantStringClassReference[32];
+#endif
+#else
+#if defined(EXTERN)
+extern long __CFConstantStringClassReference[];
+#elif defined(EXTERN_DLLIMPORT)
+extern __declspec(dllimport) long __CFConstantStringClassReference[];
+#elif defined(DLLIMPORT)
+__declspec(dllimport) long __CFConstantStringClassReference[];
+#endif
+#endif
+
+typedef struct __CFString *CFStringRef;
+const CFStringRef string = (CFStringRef)__builtin___CFStringMakeConstantString("string");
+
+// CHECK-CF-IN-CF-DECL: @__CFConstantStringClassReference = external dllexport global [0 x i32]
+// CHECK-CF-IN-CF-DEFN: @__CFConstantStringClassReference = common dllexport global [32 x i32]
+// CHECK-CF: @__CFConstantStringClassReference = external dllimport global [0 x i32]
+// CHECK-CF-EXTERN: @__CFConstantStringClassReference = external dllimport global [0 x i32]
+// CHECK-CF-EXTERN-DLLIMPORT: @__CFConstantStringClassReference = external dllimport global [0 x i32]
+// CHECK-CF-DLLIMPORT: @__CFConstantStringClassReference = external dllimport global [0 x i32]
+