42 lines · cpp
1// Test this without pch.2// RUN: %clang_cc1 %s -Wunknown-pragmas -Werror -triple i386-apple-darwin9 -fsyntax-only -include %s -verify -std=c++113 4// Test with pch.5// RUN: %clang_cc1 %s -Wunknown-pragmas -Werror -triple i386-apple-darwin9 -emit-pch -o %t -std=c++116// RUN: %clang_cc1 %s -Wunknown-pragmas -Werror -triple i386-apple-darwin9 -fsyntax-only -include-pch %t -verify -std=c++117 8// The first run line creates a pch, and since at that point HEADER is not9// defined, the only thing contained in the pch is the pragma. The second line10// then includes that pch, so HEADER is defined and the actual code is compiled.11// The check then makes sure that the pragma is in effect in the file that12// includes the pch.13 14// expected-no-diagnostics15 16#ifndef HEADER17#define HEADER18struct SOffH {19 short m : 9;20 int q : 12;21};22 23#pragma ms_struct on24 25struct SOnH {26 short m : 9;27 int q : 12;28};29 30#else31 32struct SOnC {33 short m : 9;34 int q : 12;35};36 37static_assert(sizeof(SOffH) == 4, "");38static_assert(sizeof(SOnH) == 8, "");39static_assert(sizeof(SOnC) == 8, "");40 41#endif42