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llvm-project/clang/test/CXX/modules-ts/codegen-basics.cppm

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Fix modules codegen to be compatible with modules-ts The Module::WithCodegen flag was only being set when the module was parsed from a ModuleMap. Instead set it late, in the ASTWriter to match the layer where the MODULAR_CODEGEN_DECLs list is determined (the WithCodegen flag essentially means "are this module's decls in MODULAR_CODEGEN_DECLs"). When simultaneous emission of AST file and modular object is implemented this may need to change - the Module::WithCodegen flag will need to be set earlier, and ideally the MODULAR_CODEGEN_DECLs gathering will consult this flag (that's not possible right now since Decls destined for an AST File don't have a Module - only if they're /read/ from a Module is that true - I expect that would need to change as well). llvm-svn: 293692
2017-02-01 05:28:19 +08:00
// RUN: %clang_cc1 -fmodules-ts -std=c++1z -triple=x86_64-linux-gnu -fmodules-codegen -emit-module-interface %s -o %t.pcm
C++ Modules TS: Add parsing and some semantic analysis support for export-declarations. These don't yet have an effect on name visibility; we still export everything by default. llvm-svn: 280999
2016-09-09 07:14:54 +08:00
// RUN: %clang_cc1 -fmodules-ts -std=c++1z -triple=x86_64-linux-gnu %t.pcm -emit-llvm -o - | FileCheck %s
P0629R0: Switch to latest proposal for distinguishing module interface from implementation. This switches from the prototype syntax in P0273R0 ('module' and 'module implementation') to the consensus syntax 'export module' and 'module'. In passing, drop the "module declaration must be first" enforcement, since EWG seems to have changed its mind on that. llvm-svn: 301056
2017-04-22 06:39:18 +08:00
export module FooBar;
C++ Modules TS: Add parsing and some semantic analysis support for export-declarations. These don't yet have an effect on name visibility; we still export everything by default. llvm-svn: 280999
2016-09-09 07:14:54 +08:00
export {
[test] Add {{.*}} to make ELF tests immune to dso_local/dso_preemptable/(none) differences For a default visibility external linkage definition, dso_local is set for ELF -fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences. To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition, which sets dso_local for default visibility external linkage definitions. To make this flip smooth and enable future (dso_local as definition default), this patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
2020-12-31 16:27:11 +08:00
// CHECK-DAG: define{{.*}} i32 @_Z1fv(
C++ Modules TS: Add parsing and some semantic analysis support for export-declarations. These don't yet have an effect on name visibility; we still export everything by default. llvm-svn: 280999
2016-09-09 07:14:54 +08:00
int f() { return 0; }
}
Implement Itanium name mangling support for C++ Modules TS. This follows the scheme agreed with Nathan Sidwell, which can be found here: https://gcc.gnu.org/wiki/cxx-modules?action=AttachFile This will be proposed to the itanium-cxx-abi list once we have some experience with how well it works; the ABI for this TS should be considered unstable until it is part of the Itanium C++ ABI. llvm-svn: 312467
2017-09-04 13:37:53 +08:00
// CHECK-DAG: define weak_odr void @_ZW6FooBarE2f2v(
Fix modules codegen to be compatible with modules-ts The Module::WithCodegen flag was only being set when the module was parsed from a ModuleMap. Instead set it late, in the ASTWriter to match the layer where the MODULAR_CODEGEN_DECLs list is determined (the WithCodegen flag essentially means "are this module's decls in MODULAR_CODEGEN_DECLs"). When simultaneous emission of AST file and modular object is implemented this may need to change - the Module::WithCodegen flag will need to be set earlier, and ideally the MODULAR_CODEGEN_DECLs gathering will consult this flag (that's not possible right now since Decls destined for an AST File don't have a Module - only if they're /read/ from a Module is that true - I expect that would need to change as well). llvm-svn: 293692
2017-02-01 05:28:19 +08:00
inline void f2() { }
[test] Add {{.*}} to make ELF tests immune to dso_local/dso_preemptable/(none) differences For a default visibility external linkage definition, dso_local is set for ELF -fno-pic/-fpie and COFF and Mach-O. Since default clang -cc1 for ELF is similar to -fpic ("PIC Level" is not set), this nuance causes unneeded binary format differences. To make emitted IR similar, ELF -cc1 -fpic will default to -fno-semantic-interposition, which sets dso_local for default visibility external linkage definitions. To make this flip smooth and enable future (dso_local as definition default), this patch replaces (function) `define ` with `define{{.*}} `, (variable/constant/alias) `= ` with `={{.*}} `, or inserts appropriate `{{.*}} `.
2020-12-31 16:27:11 +08:00
// CHECK-DAG: define{{.*}} void @_ZW6FooBarE2f3v(
Implement Itanium name mangling support for C++ Modules TS. This follows the scheme agreed with Nathan Sidwell, which can be found here: https://gcc.gnu.org/wiki/cxx-modules?action=AttachFile This will be proposed to the itanium-cxx-abi list once we have some experience with how well it works; the ABI for this TS should be considered unstable until it is part of the Itanium C++ ABI. llvm-svn: 312467
2017-09-04 13:37:53 +08:00
static void f3() {}
export void use_f3() { f3(); }
C++ Modules TS: Add parsing and some semantic analysis support for export-declarations. These don't yet have an effect on name visibility; we still export everything by default. llvm-svn: 280999
2016-09-09 07:14:54 +08:00
Implement Itanium name mangling support for C++ Modules TS. This follows the scheme agreed with Nathan Sidwell, which can be found here: https://gcc.gnu.org/wiki/cxx-modules?action=AttachFile This will be proposed to the itanium-cxx-abi list once we have some experience with how well it works; the ABI for this TS should be considered unstable until it is part of the Itanium C++ ABI. llvm-svn: 312467
2017-09-04 13:37:53 +08:00
// FIXME: Emit global variables and their initializers with this TU.
// Emit an initialization function that other TUs can call, with guard variable?
C++ Modules TS: Add parsing and some semantic analysis support for export-declarations. These don't yet have an effect on name visibility; we still export everything by default. llvm-svn: 280999
2016-09-09 07:14:54 +08:00
// FIXME: const-qualified variables don't have implicit internal linkage when owned by a module.