derek.holloway
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91 lines
2.1 KiB
C++
91 lines
2.1 KiB
C++
// RUN: %clang_cc1 -triple %itanium_abi_triple -emit-llvm %s -o - | FileCheck %s
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namespace foo {
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// CHECK-NOT: @a = global
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extern "C" int a;
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// CHECK-NOT: @_ZN3foo1bE = global
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extern int b;
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// CHECK: @_ZN3foo1cE = {{(dso_local )?}}global
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int c = 5;
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// CHECK-NOT: @_ZN3foo1dE
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extern "C" struct d;
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// CHECK-NOT: should_not_appear
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extern "C++" int should_not_appear;
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// CHECK: @_ZN3foo10extern_cxxE = {{(dso_local )?}}global
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extern "C++" int extern_cxx = 0;
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}
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// CHECK-NOT: @global_a = {{(dso_local )?}}global
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extern "C" int global_a;
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// CHECK: @global_b = {{(dso_local )?}}global
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extern "C" int global_b = 0;
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// CHECK-NOT: should_not_appear
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extern "C++" int should_not_appear;
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// CHECK: @extern_cxx = {{(dso_local )?}}global
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extern "C++" int extern_cxx = 0;
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namespace test1 {
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namespace {
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struct X {};
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}
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extern "C" {
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// CHECK: @test1_b = {{(dso_local )?}}global
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X test1_b = X();
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}
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void *use = &test1_b;
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// CHECK: @_ZN5test13useE = {{(dso_local )?}}global
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}
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namespace test2 {
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namespace {
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struct X {};
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}
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// CHECK: @test2_b = {{(dso_local )?}}global
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extern "C" X test2_b;
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X test2_b;
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}
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extern "C" {
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static int unused_var;
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static int unused_fn() { return 0; }
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__attribute__((used)) static int internal_var;
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__attribute__((used)) static int internal_fn() { return 0; }
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__attribute__((used)) static int duplicate_internal_var;
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__attribute__((used)) static int duplicate_internal_fn() { return 0; }
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namespace N {
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__attribute__((used)) static int duplicate_internal_var;
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__attribute__((used)) static int duplicate_internal_fn() { return 0; }
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}
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// CHECK: @llvm.compiler.used = appending global {{.*}} @internal_var, {{.*}} @internal_fn
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// CHECK-NOT: @unused
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// CHECK-NOT: @duplicate_internal
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// CHECK: @internal_var = internal alias i32, ptr @_ZL12internal_var
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// CHECK-NOT: @unused
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// CHECK-NOT: @duplicate_internal
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// CHECK: @internal_fn = internal alias i32 (), ptr @_ZL11internal_fnv
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// CHECK-NOT: @unused
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// CHECK-NOT: @duplicate_internal
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}
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namespace PR19411 {
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struct A { void f(); };
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extern "C" void A::f() { void g(); g(); }
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// CHECK-LABEL: @_ZN7PR194111A1fEv(
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// CHECK: call {{.*}}void @g()
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}
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