From 779355f96bd5e6bff40bae824f3f13ccbb30d018 Mon Sep 17 00:00:00 2001 From: Nico Weber Date: Wed, 2 Mar 2016 23:22:00 +0000 Subject: Serialize `pragma ms_struct` state. pragma ms_struct has an effect on struct decls, and the effect is serialized correctly already. But the "is ms_struct currently on" state wasn't before this change. This uses the same approach as `pragma clang optimize`: When writing a module, the state isn't serialized, only when writing a pch file. llvm-svn: 262539 --- clang/test/PCH/pragma-ms_struct.cpp | 41 +++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 clang/test/PCH/pragma-ms_struct.cpp (limited to 'clang/test/PCH/pragma-ms_struct.cpp') diff --git a/clang/test/PCH/pragma-ms_struct.cpp b/clang/test/PCH/pragma-ms_struct.cpp new file mode 100644 index 00000000000..ac2a1e87b23 --- /dev/null +++ b/clang/test/PCH/pragma-ms_struct.cpp @@ -0,0 +1,41 @@ +// Test this without pch. +// RUN: %clang_cc1 %s -Wunknown-pragmas -Werror -triple i386-apple-darwin9 -fsyntax-only -include %s -verify -std=c++11 + +// Test with pch. +// RUN: %clang_cc1 %s -Wunknown-pragmas -Werror -triple i386-apple-darwin9 -emit-pch -o %t -std=c++11 +// RUN: %clang_cc1 %s -Wunknown-pragmas -Werror -triple i386-apple-darwin9 -fsyntax-only -include-pch %t -verify -std=c++11 + +// The first run line creates a pch, and since at that point HEADER is not +// defined, the only thing contained in the pch is the pragma. The second line +// then includes that pch, so HEADER is defined and the actual code is compiled. +// The check then makes sure that the pragma is in effect in the file that +// includes the pch. + +// expected-no-diagnostics + +#ifndef HEADER +#define HEADER +struct SOffH { + short m : 9; + int q : 12; +}; + +#pragma ms_struct on + +struct SOnH { + short m : 9; + int q : 12; +}; + +#else + +struct SOnC { + short m : 9; + int q : 12; +}; + +static_assert(sizeof(SOffH) == 4, ""); +static_assert(sizeof(SOnH) == 8, ""); +static_assert(sizeof(SOnC) == 8, ""); + +#endif -- cgit v1.2.3