115 lines · cpp
1// RUN: %clang_cc1 -flto -flto-unit -triple x86_64-unknown-linux -emit-llvm -fvirtual-function-elimination -fwhole-program-vtables -o - %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-VFE2// RUN: %clang_cc1 -flto -flto-unit -triple x86_64-unknown-linux -emit-llvm -fwhole-program-vtables -o - %s | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-NOVFE3// RUN: %clang_cc1 -flto -flto-unit -triple x86_64-pc-windows-msvc -emit-llvm -fwhole-program-vtables -o - %s | FileCheck %s --check-prefix=CHECK-MS --check-prefix=CHECK-NOVFE4 5// Check that in ThinLTO we also get vcall_visibility summary entries in the bitcode6// RUN: %clang_cc1 -flto=thin -flto-unit -triple x86_64-unknown-linux -emit-llvm-bc -fwhole-program-vtables -o - %s | llvm-dis -o - | FileCheck %s --check-prefix=CHECK --check-prefix=CHECK-NOVFE --check-prefix=CHECK-SUMMARY7 8 9// Anonymous namespace.10namespace {11// CHECK: @_ZTVN12_GLOBAL__N_11AE = {{.*}} !vcall_visibility [[VIS_TU:![0-9]+]]12// CHECK-MS: @anon.{{.*}} = private unnamed_addr constant {{.*}}@"??_R4A@?A{{.*}}@@6B@"{{.*}} !vcall_visibility [[VIS_TU:![0-9]+]]13struct A {14 A() {}15 virtual int f() { return 1; }16};17}18void *construct_A() {19 return new A();20}21 22 23// Hidden visibility.24// CHECK: @_ZTV1B = {{.*}} !vcall_visibility [[VIS_DSO:![0-9]+]]25// CHECK-MS: @anon.{{.*}} = private unnamed_addr constant {{.*}}@"??_R4B@@6B@"{{.*}} !vcall_visibility [[VIS_DSO:![0-9]+]]26struct __attribute__((visibility("hidden"))) B {27 B() {}28 virtual int f() { return 1; }29};30B *construct_B() {31 return new B();32}33 34 35// Default visibility.36// CHECK-NOT: @_ZTV1C = {{.*}} !vcall_visibility37// On MS default is hidden38// CHECK-MS: @anon.{{.*}} = private unnamed_addr constant {{.*}}@"??_R4C@@6B@"{{.*}} !vcall_visibility [[VIS_DSO]]39struct __attribute__((visibility("default"))) C {40 C() {}41 virtual int f() { return 1; }42};43C *construct_C() {44 return new C();45}46 47 48// Hidden visibility, public LTO visibility.49// CHECK-NOT: @_ZTV1D = {{.*}} !vcall_visibility50// CHECK-MS-NOT: @anon.{{.*}} = private unnamed_addr constant {{.*}}@"??_R4D@@6B@"{{.*}} !vcall_visibility51struct __attribute__((visibility("hidden"))) [[clang::lto_visibility_public]] D {52 D() {}53 virtual int f() { return 1; }54};55D *construct_D() {56 return new D();57}58 59 60// Hidden visibility, but inherits from class with default visibility.61// CHECK-NOT: @_ZTV1E = {{.*}} !vcall_visibility62// On MS default is hidden63// CHECK-MS: @anon.{{.*}} = private unnamed_addr constant {{.*}}@"??_R4E@@6B@"{{.*}} !vcall_visibility [[VIS_DSO]]64struct __attribute__((visibility("hidden"))) E : C {65 E() {}66 virtual int f() { return 1; }67};68E *construct_E() {69 return new E();70}71 72 73// Anonymous namespace, but inherits from class with default visibility.74// CHECK-NOT: @_ZTVN12_GLOBAL__N_11FE = {{.*}} !vcall_visibility75// On MS default is hidden76// CHECK-MS: @anon.{{.*}} = private unnamed_addr constant {{.*}}@"??_R4F@?A{{.*}}@@6B@"{{.*}} !vcall_visibility [[VIS_DSO]]77namespace {78struct __attribute__((visibility("hidden"))) F : C {79 F() {}80 virtual int f() { return 1; }81};82}83void *construct_F() {84 return new F();85}86 87 88// Anonymous namespace, but inherits from class with hidden visibility.89// CHECK: @_ZTVN12_GLOBAL__N_11GE = {{.*}} !vcall_visibility [[VIS_DSO:![0-9]+]]90// CHECK-MS: @anon.{{.*}} = private unnamed_addr constant {{.*}}@"??_R4G@?A{{.*}}@@6B@"{{.*}} !vcall_visibility [[VIS_DSO]]91namespace {92struct __attribute__((visibility("hidden"))) G : B {93 G() {}94 virtual int f() { return 1; }95};96}97void *construct_G() {98 return new G();99}100 101// CHECK-MS-DAG: [[VIS_DSO]] = !{i64 1}102// CHECK-MS-DAG: [[VIS_TU]] = !{i64 2}103// CHECK-DAG: [[VIS_DSO]] = !{i64 1}104// CHECK-DAG: [[VIS_TU]] = !{i64 2}105// CHECK-VFE-DAG: !{i32 1, !"Virtual Function Elim", i32 1}106// CHECK-NOVFE-DAG: !{i32 1, !"Virtual Function Elim", i32 0}107 108// CHECK-SUMMARY-DAG: gv: (name: "_ZTV1B", {{.*}} vcall_visibility: 1109// CHECK-SUMMARY-DAG: gv: (name: "_ZTVN12_GLOBAL__N_11FE", {{.*}} vcall_visibility: 0110// CHECK-SUMMARY-DAG: gv: (name: "_ZTV1D", {{.*}} vcall_visibility: 0111// CHECK-SUMMARY-DAG: gv: (name: "_ZTV1C", {{.*}} vcall_visibility: 0112// CHECK-SUMMARY-DAG: gv: (name: "_ZTV1E", {{.*}} vcall_visibility: 0113// CHECK-SUMMARY-DAG: gv: (name: "_ZTVN12_GLOBAL__N_11AE", {{.*}} vcall_visibility: 2114// CHECK-SUMMARY-DAG: gv: (name: "_ZTVN12_GLOBAL__N_11GE", {{.*}} vcall_visibility: 1115