forked from OSchip/llvm-project
122 lines
4.6 KiB
C++
122 lines
4.6 KiB
C++
// RUN: %clang_cc1 -fmodules-ts %s -triple %itanium_abi_triple -emit-llvm -o - | FileCheck %s --implicit-check-not unused_inline --implicit-check-not unused_stastic_global_module
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// CHECK-DAG: @extern_var_global_module = external global
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// CHECK-DAG: @inline_var_global_module = linkonce_odr global
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// CHECK-DAG: @_ZL24static_var_global_module = internal global
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// CHECK-DAG: @_ZL23const_var_global_module = internal constant
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//
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// For ABI compatibility, these symbols do not include the module name.
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// CHECK-DAG: @extern_var_exported = external global
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// FIXME: Should this be 'weak_odr global'? Presumably it must be, since we
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// can discard this global and its initializer (if any), and other TUs are not
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// permitted to run the initializer for this variable.
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// CHECK-DAG: @inline_var_exported = linkonce_odr global
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// CHECK-DAG: @_ZW6ModuleE19static_var_exported = global
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// CHECK-DAG: @const_var_exported = constant
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//
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// FIXME: The module name should be mangled into all of these.
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// CHECK-DAG: @extern_var_module_linkage = external global
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// FIXME: Should this be 'weak_odr global'? Presumably it must be, since we
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// can discard this global and its initializer (if any), and other TUs are not
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// permitted to run the initializer for this variable.
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// CHECK-DAG: @inline_var_module_linkage = linkonce_odr global
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// CHECK-DAG: @_ZW6ModuleE25static_var_module_linkage = global
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// CHECK-DAG: @_ZW6ModuleE24const_var_module_linkage = constant
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static void unused_static_global_module() {}
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static void used_static_global_module() {}
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inline void unused_inline_global_module() {}
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inline void used_inline_global_module() {}
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extern int extern_var_global_module;
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inline int inline_var_global_module;
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static int static_var_global_module;
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const int const_var_global_module = 3;
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// CHECK: define void {{.*}}@_Z23noninline_global_modulev
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void noninline_global_module() {
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// FIXME: This should be promoted to module linkage and given a
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// module-mangled name, if it's called from an inline function within
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// the module interface.
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// (We should try to avoid this when it's not reachable from outside
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// the module interface unit.)
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// CHECK: define internal {{.*}}@_ZL25used_static_global_modulev
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used_static_global_module();
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// CHECK: define linkonce_odr {{.*}}@_Z25used_inline_global_modulev
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used_inline_global_module();
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(void)&extern_var_global_module;
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(void)&inline_var_global_module;
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(void)&static_var_global_module;
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(void)&const_var_global_module;
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}
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export module Module;
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export {
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// FIXME: These should be ill-formed: you can't export an internal linkage
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// symbol, per [dcl.module.interface]p2.
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// CHECK: define void {{.*}}@_ZW6ModuleE22unused_static_exportedv
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static void unused_static_exported() {}
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// CHECK: define void {{.*}}@_ZW6ModuleE20used_static_exportedv
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static void used_static_exported() {}
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inline void unused_inline_exported() {}
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inline void used_inline_exported() {}
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extern int extern_var_exported;
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inline int inline_var_exported;
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// FIXME: This should be ill-formed: you can't export an internal linkage
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// symbol.
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static int static_var_exported;
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const int const_var_exported = 3;
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// CHECK: define void {{.*}}@_Z18noninline_exportedv
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void noninline_exported() {
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used_static_exported();
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// CHECK: define linkonce_odr {{.*}}@_Z20used_inline_exportedv
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used_inline_exported();
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(void)&extern_var_exported;
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(void)&inline_var_exported;
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(void)&static_var_exported;
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(void)&const_var_exported;
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}
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}
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// FIXME: Ideally we wouldn't emit this as its name is not visible outside this
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// TU, but this module interface might contain a template that can use this
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// function so we conservatively emit it for now.
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// CHECK: define void {{.*}}@_ZW6ModuleE28unused_static_module_linkagev
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static void unused_static_module_linkage() {}
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// CHECK: define void {{.*}}@_ZW6ModuleE26used_static_module_linkagev
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static void used_static_module_linkage() {}
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inline void unused_inline_module_linkage() {}
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inline void used_inline_module_linkage() {}
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extern int extern_var_module_linkage;
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inline int inline_var_module_linkage;
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static int static_var_module_linkage;
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const int const_var_module_linkage = 3;
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// CHECK: define void {{.*}}@_ZW6ModuleE24noninline_module_linkagev
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void noninline_module_linkage() {
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used_static_module_linkage();
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// CHECK: define linkonce_odr {{.*}}@_ZW6ModuleE26used_inline_module_linkagev
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used_inline_module_linkage();
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(void)&extern_var_module_linkage;
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(void)&inline_var_module_linkage;
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(void)&static_var_module_linkage;
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(void)&const_var_module_linkage;
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}
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struct a {
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struct b {};
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struct c {};
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};
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// CHECK: define void @_ZW6ModuleE1fW_0EN1a1bEW_0ENS_1cE(
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void f(a::b, a::c) {}
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