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llvm-project/clang/test/PCH/cxx-required-decls.cpp

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Always deserialize from PCH file scoped variables with non trivial constructor/destructor. Fixes http://llvm.org/PR7692 llvm-svn: 109501
2010-07-27 20:56:10 +08:00
// Test this without pch.
// RUN: %clang_cc1 -include %S/cxx-required-decls.h %s -emit-llvm -o - | FileCheck %s
// Test with pch.
// RUN: %clang_cc1 -x c++-header -emit-pch -o %t %S/cxx-required-decls.h
// RUN: %clang_cc1 -include-pch %t %s -emit-llvm -o - | FileCheck %s
// CHECK: @_ZL5globS = internal global %struct.S zeroinitializer
Merge PCHWriterDecl.cpp's isRequiredDecl and CodeGenModule::MayDeferGeneration into a new function, DeclIsRequiredFunctionOrFileScopedVar. This is essentially a CodeGen predicate that is also needed by the PCH mechanism to determine whether a decl needs to be deserialized during PCH loading for codegen purposes. Since this logic is shared by CodeGen and the PCH mechanism, move it to the ASTContext, thus CodeGenModule's GetLinkageForFunction/GetLinkageForVariable and the GVALinkage enum is moved out of CodeGen. This fixes current (and avoids future) codegen-from-PCH bugs. llvm-svn: 109784
2010-07-30 02:15:58 +08:00
// CHECK: @_ZL3bar = internal global i32 0, align 4
Make sure C++ variable definitions are actually passed to the consumer when loaded from PCH. llvm-svn: 110322
2010-08-05 17:47:59 +08:00
// CHECK: @glob_var = global i32 0