From feedf8515b72343426959fd708460db957c4c285 Mon Sep 17 00:00:00 2001 From: Hans Wennborg Date: Thu, 21 Nov 2013 00:15:56 +0000 Subject: [-cxx-abi microsoft] Emit linkonce_odr definitions for declarations of static data members with inline initializers (PR17689) This makes Clang emit a linkonce_odr definition for 'val' in the code below, to be compatible with MSVC-compiled code: struct Foo { static const int val = 1; }; Differential Revision: http://llvm-reviews.chandlerc.com/D2233 llvm-svn: 195283 --- .../CodeGenCXX/ms-integer-static-data-members.cpp | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 clang/test/CodeGenCXX/ms-integer-static-data-members.cpp (limited to 'clang/test/CodeGenCXX/ms-integer-static-data-members.cpp') diff --git a/clang/test/CodeGenCXX/ms-integer-static-data-members.cpp b/clang/test/CodeGenCXX/ms-integer-static-data-members.cpp new file mode 100644 index 00000000000..00beaa62f19 --- /dev/null +++ b/clang/test/CodeGenCXX/ms-integer-static-data-members.cpp @@ -0,0 +1,35 @@ +// RUN: %clang_cc1 -emit-llvm -cxx-abi microsoft -triple=i386-pc-win32 %s -o - | FileCheck %s +// RUN: %clang_cc1 -DINLINE_INIT -emit-llvm -cxx-abi microsoft -triple=i386-pc-win32 %s -o - | FileCheck %s --check-prefix=CHECK-INLINE +// RUN: %clang_cc1 -DREAL_DEFINITION -emit-llvm -cxx-abi microsoft -triple=i386-pc-win32 %s -o - | FileCheck %s --check-prefix=CHECK-OUTOFLINE +// RUN: %clang_cc1 -DINLINE_INIT -DREAL_DEFINITION -emit-llvm -cxx-abi microsoft -triple=i386-pc-win32 %s -o - | FileCheck %s --check-prefix=CHECK-INLINE + +struct S { + // For MS ABI, we emit a linkonce_odr definition here, even though it's really just a declaration. +#ifdef INLINE_INIT + static const int x = 5; +#else + static const int x; +#endif +}; + +const int *f() { + return &S::x; +}; + +#ifdef REAL_DEFINITION +#ifdef INLINE_INIT +const int S::x; +#else +const int S::x = 5; +#endif +#endif + + +// Inline initialization. +// CHECK-INLINE: @"\01?x@S@@2HB" = linkonce_odr constant i32 5, align 4 + +// Out-of-line initialization. +// CHECK-OUTOFLINE: @"\01?x@S@@2HB" = constant i32 5, align 4 + +// No initialization. +// CHECK: @"\01?x@S@@2HB" = external constant i32 -- cgit v1.2.3