408 lines · cpp
1// RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck --check-prefixes=CHECK,LINUX,LINUX_AIX %s2// RUN: %clang_cc1 -std=c++11 -emit-llvm %s -O2 -disable-llvm-passes -o - -triple x86_64-linux-gnu | FileCheck --check-prefixes=CHECK,LINUX,LINUX_AIX,CHECK-OPT %s3// RUN: %clang_cc1 -std=c++11 -femulated-tls -emit-llvm %s -o - \4// RUN: -triple x86_64-linux-gnu 2>&1 | FileCheck --check-prefixes=CHECK,LINUX,LINUX_AIX %s5// RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple x86_64-apple-darwin12 | FileCheck --check-prefix=CHECK --check-prefix=DARWIN %s6// RUN: %clang_cc1 -std=c++11 -emit-llvm %s -o - -triple powerpc64-unknown-aix-xcoff | FileCheck --check-prefixes=CHECK,AIX,LINUX_AIX %s7 8// RUN: %clang_cc1 -std=c++11 -fno-use-cxa-atexit -emit-llvm %s -o - -triple x86_64-linux-gnu | FileCheck --check-prefixes=CHECK,LINUX,LINUX_AIX %s9// RUN: %clang_cc1 -std=c++11 -fno-use-cxa-atexit -emit-llvm %s -O2 -disable-llvm-passes -o - -triple x86_64-linux-gnu | FileCheck --check-prefixes=CHECK,LINUX,LINUX_AIX,CHECK-OPT %s10// RUN: %clang_cc1 -std=c++11 -fno-use-cxa-atexit -femulated-tls -emit-llvm %s -o - \11// RUN: -triple x86_64-linux-gnu 2>&1 | FileCheck --check-prefixes=CHECK,LINUX,LINUX_AIX %s12// RUN: %clang_cc1 -std=c++11 -fno-use-cxa-atexit -emit-llvm %s -o - -triple x86_64-apple-darwin12 | FileCheck --check-prefix=CHECK --check-prefix=DARWIN %s13 14int f();15int g();16 17// LINUX_AIX-DAG: @a ={{.*}} thread_local global i32 018// DARWIN-DAG: @a = internal thread_local global i32 019thread_local int a = f();20extern thread_local int b;21// CHECK-DAG: @c ={{.*}} global i32 022int c = b;23// CHECK-DAG: @_ZL1d = internal thread_local global i32 024static thread_local int d = g();25 26struct U { static thread_local int m; };27// LINUX_AIX-DAG: @_ZN1U1mE ={{.*}} thread_local global i32 028// DARWIN-DAG: @_ZN1U1mE = internal thread_local global i32 029thread_local int U::m = f();30 31namespace MismatchedInitType {32 // Check that we don't crash here when we're forced to create a new global33 // variable (with a different type) when we add the initializer.34 union U {35 int a;36 float f;37 constexpr U() : f(0.0) {}38 };39 static thread_local U u;40 void *p = &u;41}42 43template<typename T> struct V { static thread_local int m; };44template<typename T> thread_local int V<T>::m = g();45 46template<typename T> struct W { static thread_local int m; };47template<typename T> thread_local int W<T>::m = 123;48 49struct Dtor { ~Dtor(); };50template<typename T> struct X { static thread_local Dtor m; };51template<typename T> thread_local Dtor X<T>::m;52 53// CHECK-DAG: @e ={{.*}} global54void *e = V<int>::m + W<int>::m + &X<int>::m;55 56template thread_local int V<float>::m;57template thread_local int W<float>::m;58template thread_local Dtor X<float>::m;59 60extern template thread_local int V<char>::m;61extern template thread_local int W<char>::m;62extern template thread_local Dtor X<char>::m;63 64void *e2 = V<char>::m + W<char>::m + &X<char>::m;65 66// CHECK-DAG: @_ZN1VIiE1mE = linkonce_odr thread_local global i32 067// CHECK-DAG: @_ZN1WIiE1mE = linkonce_odr thread_local global i32 12368// CHECK-DAG: @_ZN1XIiE1mE = linkonce_odr thread_local global {{.*}}69// CHECK-DAG: @_ZN1VIfE1mE = weak_odr thread_local global i32 070// CHECK-DAG: @_ZN1WIfE1mE = weak_odr thread_local global i32 12371// CHECK-DAG: @_ZN1XIfE1mE = weak_odr thread_local global {{.*}}72 73// CHECK-DAG: @_ZZ1fvE1n = internal thread_local global i32 074 75// CHECK-DAG: @_ZGVZ1fvE1n = internal thread_local global i8 076 77// CHECK-DAG: @_ZZ8tls_dtorvE1s = internal thread_local global78// CHECK-DAG: @_ZGVZ8tls_dtorvE1s = internal thread_local global i8 079 80// CHECK-DAG: @_ZZ8tls_dtorvE1t = internal thread_local global81// CHECK-DAG: @_ZGVZ8tls_dtorvE1t = internal thread_local global i8 082 83// CHECK-DAG: @_ZZ8tls_dtorvE1u = internal thread_local global84// CHECK-DAG: @_ZGVZ8tls_dtorvE1u = internal thread_local global i8 085// CHECK-DAG: @_ZGRZ8tls_dtorvE1u_ = internal thread_local global86 87// CHECK-DAG: @_ZGVN1VIiE1mE = linkonce_odr thread_local global i64 088 89// CHECK-DAG: @__tls_guard = internal thread_local global i8 090 91// CHECK-DAG: @llvm.global_ctors = appending global {{.*}} @[[GLOBAL_INIT:[^ ]*]]92 93// LINUX_AIX-DAG: @_ZTH1a ={{.*}} alias void (), ptr @__tls_init94// DARWIN-DAG: @_ZTH1a = internal alias void (), ptr @__tls_init95// LINUX_AIX-DAG: @_ZTHN1U1mE ={{.*}} alias void (), ptr @__tls_init96// DARWIN-DAG: @_ZTHN1U1mE = internal alias void (), ptr @__tls_init97// CHECK-DAG: @_ZTHN1VIiE1mE = linkonce_odr alias void (), ptr @[[V_M_INIT:[^, ]*]]98// CHECK-DAG: @_ZTHN1XIiE1mE = linkonce_odr alias void (), ptr @[[X_M_INIT:[^, ]*]]99// CHECK-DAG: @_ZTHN1VIfE1mE = weak_odr alias void (), ptr @[[VF_M_INIT:[^, ]*]]100// CHECK-DAG: @_ZTHN1XIfE1mE = weak_odr alias void (), ptr @[[XF_M_INIT:[^, ]*]]101// FIXME: We really want a CHECK-DAG-NOT for these.102// CHECK-NOT: @_ZTHN1WIiE1mE =103// CHECK-NOT: @_ZTHN1WIfE1mE =104// CHECK-NOT: @_ZTHL1d =105 106 107// Individual variable initialization functions:108 109// CHECK: define {{.*}} @[[A_INIT:.*]]()110// CHECK: call{{.*}} i32 @_Z1fv()111// CHECK: [[A_ADDR:%.+]] = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @a)112// CHECK-NEXT: store i32 {{.*}}, ptr [[A_ADDR]], align 4113 114// CHECK-LABEL: define{{.*}} i32 @_Z1fv()115int f() {116 // CHECK: %[[GUARD:.*]] = load i8, ptr @_ZGVZ1fvE1n, align 1117 // CHECK: %[[NEED_INIT:.*]] = icmp eq i8 %[[GUARD]], 0118 // CHECK: br i1 %[[NEED_INIT]]{{.*}}119 120 // CHECK: %[[CALL:.*]] = call{{.*}} i32 @_Z1gv()121 // CHECK: [[N_ADDR:%.+]] = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @_ZZ1fvE1n)122 // CHECK: store i32 %[[CALL]], ptr [[N_ADDR]], align 4123 // CHECK: store i8 1, ptr @_ZGVZ1fvE1n124 // CHECK: br label125 static thread_local int n = g();126 127 // CHECK: [[N_ADDR2:%.+]] = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @_ZZ1fvE1n)128 // CHECK: load i32, ptr [[N_ADDR2]], align 4129 return n;130}131 132// CHECK: define {{.*}} @[[C_INIT:.*]]()133// LINUX_AIX: call ptr @_ZTW1b()134// DARWIN: call cxx_fast_tlscc ptr @_ZTW1b()135// CHECK-NEXT: load i32, ptr %{{.*}}, align 4136// CHECK-NEXT: store i32 %{{.*}}, ptr @c, align 4137 138// LINUX_AIX-LABEL: define linkonce_odr hidden noundef ptr @_ZTW1b()139// LINUX: [[CMP:%.*]] = icmp ne ptr @_ZTH1b, null140// LINUX: br i1 [[CMP]]141// AIX-NOT: [[CMP:%.*]] = icmp ne ptr @_ZTH1b, null142// not null:143// LINUX_AIX: call void @_ZTH1b()144// LINUX: br label145// AIX-NOT: br label146// finally:147// LINUX_AIX: [[B_ADDR:%.+]] = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @b)148// LINUX_AIX: ret ptr [[B_ADDR]]149// DARWIN-LABEL: declare cxx_fast_tlscc noundef ptr @_ZTW1b()150// There is no definition of the thread wrapper on Darwin for external TLV.151 152// CHECK: define {{.*}} @[[D_INIT:.*]]()153// CHECK: call{{.*}} i32 @_Z1gv()154// CHECK-NEXT: [[D_ADDR:%.+]] = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @_ZL1d)155// CHECK-NEXT: store i32 %{{.*}}, ptr [[D_ADDR]], align 4156 157// CHECK: define {{.*}} @[[U_M_INIT:.*]]()158// CHECK: call{{.*}} i32 @_Z1fv()159// CHECK-NEXT: [[UM_ADDR:%.+]] = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @_ZN1U1mE)160// CHECK-NEXT: store i32 %{{.*}}, ptr [[UM_ADDR]], align 4161 162// CHECK: define {{.*}} @[[E_INIT:.*]]()163// LINUX_AIX: call ptr @_ZTWN1VIiE1mE()164// DARWIN: call cxx_fast_tlscc ptr @_ZTWN1VIiE1mE()165// CHECK-NEXT: load i32, ptr %{{.*}}, align 4166// LINUX_AIX: call ptr @_ZTWN1XIiE1mE()167// DARWIN: call cxx_fast_tlscc ptr @_ZTWN1XIiE1mE()168// CHECK: store {{.*}} @e169 170// LINUX_AIX-LABEL: define weak_odr hidden noundef ptr @_ZTWN1VIiE1mE()171// DARWIN-LABEL: define weak_odr hidden cxx_fast_tlscc noundef ptr @_ZTWN1VIiE1mE()172// LINUX_AIX: call void @_ZTHN1VIiE1mE()173// DARWIN: call cxx_fast_tlscc void @_ZTHN1VIiE1mE()174// CHECK: [[VM_ADDR:%.+]] = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @_ZN1VIiE1mE)175// CHECK: ret ptr [[VM_ADDR]]176 177// LINUX_AIX-LABEL: define weak_odr hidden noundef ptr @_ZTWN1WIiE1mE()178// DARWIN-LABEL: define weak_odr hidden cxx_fast_tlscc noundef ptr @_ZTWN1WIiE1mE()179// CHECK-NOT: call180// CHECK: [[WM_ADDR:%.+]] = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @_ZN1WIiE1mE)181// CHECK: ret ptr [[WM_ADDR]]182 183// LINUX_AIX-LABEL: define weak_odr hidden {{.*}}ptr @_ZTWN1XIiE1mE()184// DARWIN-LABEL: define weak_odr hidden cxx_fast_tlscc {{.*}}ptr @_ZTWN1XIiE1mE()185// LINUX_AIX: call void @_ZTHN1XIiE1mE()186// DARWIN: call cxx_fast_tlscc void @_ZTHN1XIiE1mE()187// CHECK: [[XM_ADDR:%.+]] = call align 1 ptr @llvm.threadlocal.address.p0(ptr align 1 @_ZN1XIiE1mE)188// CHECK: ret ptr [[XM_ADDR]]189 190// LINUX_AIX: define internal void @[[VF_M_INIT]]()191// DARWIN: define internal cxx_fast_tlscc void @[[VF_M_INIT]]()192// CHECK-NOT: comdat193// CHECK: load i8, ptr @_ZGVN1VIfE1mE194// CHECK: %[[VF_M_INITIALIZED:.*]] = icmp eq i8 %{{.*}}, 0195// CHECK: br i1 %[[VF_M_INITIALIZED]],196// need init:197// CHECK: store i8 1, ptr @_ZGVN1VIfE1mE198// CHECK: call{{.*}} i32 @_Z1gv()199// CHECK: [[VFM_ADDR:%.+]] = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @_ZN1VIfE1mE)200// CHECK: store i32 %{{.*}}, ptr [[VFM_ADDR]], align 4201// CHECK: br label202 203// LINUX_AIX: define internal void @[[XF_M_INIT]]()204// DARWIN: define internal cxx_fast_tlscc void @[[XF_M_INIT]]()205// CHECK-NOT: comdat206// CHECK: load i8, ptr @_ZGVN1XIfE1mE207// CHECK: %[[XF_M_INITIALIZED:.*]] = icmp eq i8 %{{.*}}, 0208// CHECK: br i1 %[[XF_M_INITIALIZED]],209// need init:210// CHECK: store i8 1, ptr @_ZGVN1XIfE1mE211// AIX-NOT: br212// LINUX: call {{.*}}__cxa_thread_atexit213// AIX: call {{.*}}__pt_atexit_np214// DARWIN: call {{.*}}_tlv_atexit215// CHECK: br label216 217// LINUX: declare i32 @__cxa_thread_atexit(ptr, ptr, ptr)218// AIX: declare i32 @__pt_atexit_np(i32, ptr, ...)219// DARWIN: declare i32 @_tlv_atexit(ptr, ptr, ptr)220 221// DARWIN: declare cxx_fast_tlscc noundef ptr @_ZTWN1VIcE1mE()222// LINUX_AIX: define linkonce_odr hidden noundef ptr @_ZTWN1VIcE1mE() {{#[0-9]+}}{{( comdat)?}} {223// LINUX: [[CMP:%.*]] = icmp ne ptr @_ZTHN1VIcE1mE,224// LINUX: br i1 [[CMP]]225// AIX-NOT: [[CMP:%.*]] = icmp ne ptr @_ZTHN1VIcE1mE,226// LINUX_AIX: call void @_ZTHN1VIcE1mE()227// LINUX_AIX: [[VEM_ADDR:%.+]] = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @_ZN1VIcE1mE)228// LINUX_AIX: ret ptr [[VEM_ADDR]]229 230// DARWIN: declare cxx_fast_tlscc noundef ptr @_ZTWN1WIcE1mE()231// LINUX_AIX: define linkonce_odr hidden noundef ptr @_ZTWN1WIcE1mE() {{#[0-9]+}}{{( comdat)?}} {232// LINUX: [[CMP:%.*]] = icmp ne ptr @_ZTHN1WIcE1mE,233// LINUX: br i1 [[CMP]]234// AIX-NOT: [[CMP:%.*]] = icmp ne ptr @_ZTHN1WIcE1mE,235// LINUX_AIX: call void @_ZTHN1WIcE1mE()236// LINUX_AIX: [[WEM_ADDR:%.+]] = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @_ZN1WIcE1mE)237// LINUX_AIX: ret ptr [[WEM_ADDR]]238 239// DARWIN: declare cxx_fast_tlscc {{.*}}ptr @_ZTWN1XIcE1mE()240// LINUX_AIX: define linkonce_odr hidden {{.*}}ptr @_ZTWN1XIcE1mE() {{#[0-9]+}}{{( comdat)?}} {241// LINUX: [[CMP:%.*]] = icmp ne ptr @_ZTHN1XIcE1mE,242// LINUX: br i1 [[CMP]]243// AIX-NOT: [[CMP:%.*]] = icmp ne ptr @_ZTHN1XIcE1mE,244// LINUX_AIX: call void @_ZTHN1XIcE1mE()245// LINUX_AIX: [[XEM_ADDR:%.+]] = call align 1 ptr @llvm.threadlocal.address.p0(ptr align 1 @_ZN1XIcE1mE)246// LINUX_AIX: ret ptr [[XEM_ADDR]]247 248struct S { S(); ~S(); };249struct T { ~T(); };250 251// CHECK-LABEL: define{{.*}} void @_Z8tls_dtorv()252void tls_dtor() {253 // CHECK: load i8, ptr @_ZGVZ8tls_dtorvE1s254 // CHECK: call void @_ZN1SC1Ev(ptr {{[^,]*}} @_ZZ8tls_dtorvE1s)255 // LINUX: call i32 @__cxa_thread_atexit({{.*}}@_ZN1SD1Ev, {{.*}} @_ZZ8tls_dtorvE1s{{.*}} @__dso_handle256 // AIX: call i32 (i32, ptr, ...) @__pt_atexit_np(i32 0, {{.*}}@__dtor__ZZ8tls_dtorvE1s){{.*}}257 // DARWIN: call i32 @_tlv_atexit({{.*}}@_ZN1SD1Ev, {{.*}} @_ZZ8tls_dtorvE1s{{.*}} @__dso_handle258 // CHECK: store i8 1, ptr @_ZGVZ8tls_dtorvE1s259 static thread_local S s;260 261 // CHECK: load i8, ptr @_ZGVZ8tls_dtorvE1t262 // CHECK-NOT: _ZN1T263 // LINUX: call i32 @__cxa_thread_atexit({{.*}}@_ZN1TD1Ev, {{.*}}@_ZZ8tls_dtorvE1t{{.*}} @__dso_handle264 // AIX: call i32 (i32, ptr, ...) @__pt_atexit_np(i32 0, {{.*}}@__dtor__ZZ8tls_dtorvE1t){{.*}}265 // DARWIN: call i32 @_tlv_atexit({{.*}}@_ZN1TD1Ev, {{.*}}@_ZZ8tls_dtorvE1t{{.*}} @__dso_handle266 // CHECK: store i8 1, ptr @_ZGVZ8tls_dtorvE1t267 static thread_local T t;268 269 // CHECK: load i8, ptr @_ZGVZ8tls_dtorvE1u270 // CHECK: call void @_ZN1SC1Ev(ptr {{[^,]*}} @_ZGRZ8tls_dtorvE1u_)271 // LINUX: call i32 @__cxa_thread_atexit({{.*}}@_ZN1SD1Ev, {{.*}} @_ZGRZ8tls_dtorvE1u_{{.*}} @__dso_handle272 // AIX: call i32 (i32, ptr, ...) @__pt_atexit_np(i32 0, {{.*}}__dtor__ZZ8tls_dtorvE1u){{.*}}273 // DARWIN: call i32 @_tlv_atexit({{.*}}@_ZN1SD1Ev, {{.*}} @_ZGRZ8tls_dtorvE1u_{{.*}} @__dso_handle274 // CHECK: store i8 1, ptr @_ZGVZ8tls_dtorvE1u275 static thread_local const S &u = S();276}277 278// AIX: define {{.*}}@__dtor__ZZ8tls_dtorvE1s(i32 noundef signext %0, ...){{.*}}{279// AIX: entry:280// AIX: %.addr = alloca i32, align 4281// AIX: store i32 %0, ptr %.addr, align 4282// AIX: call void @_ZN1SD1Ev(ptr @_ZZ8tls_dtorvE1s)283// AIX: ret i32 0284// AIX: }285 286// AIX: define {{.*}}@__dtor__ZZ8tls_dtorvE1t(i32 noundef signext %0, ...){{.*}}{287// AIX: entry:288// AIX: %.addr = alloca i32, align 4289// AIX: store i32 %0, ptr %.addr, align 4290// AIX: call void @_ZN1TD1Ev(ptr @_ZZ8tls_dtorvE1t)291// AIX: ret i32 0292// AIX: }293 294// AIX: define {{.*}}@__dtor__ZZ8tls_dtorvE1u(i32 noundef signext %0, ...){{.*}}{295// AIX: entry:296// AIX: %.addr = alloca i32, align 4297// AIX: store i32 %0, ptr %.addr, align 4298// AIX: call void @_ZN1SD1Ev(ptr @_ZGRZ8tls_dtorvE1u_)299// AIX: ret i32 0300// AIX: }301 302// CHECK: define {{.*}} @_Z7PR15991v(303int PR15991() {304 thread_local int n;305 auto l = [] { return n; };306 return l();307}308 309struct PR19254 {310 static thread_local int n;311 int f();312};313// CHECK: define {{.*}} @_ZN7PR192541fEv(314int PR19254::f() {315 // LINUX_AIX: call void @_ZTHN7PR192541nE(316 // DARWIN: call cxx_fast_tlscc ptr @_ZTWN7PR192541nE(317 return this->n;318}319 320namespace {321thread_local int anon_i{f()};322}323void set_anon_i() {324 anon_i = 2;325}326// LINUX_AIX-LABEL: define internal noundef ptr @_ZTWN12_GLOBAL__N_16anon_iE()327// DARWIN-LABEL: define internal cxx_fast_tlscc noundef ptr @_ZTWN12_GLOBAL__N_16anon_iE()328 329// LINUX_AIX: define internal void @[[V_M_INIT]]()330// DARWIN: define internal cxx_fast_tlscc void @[[V_M_INIT]]()331// CHECK-NOT: comdat332// CHECK: load i8, ptr @_ZGVN1VIiE1mE333// CHECK: %[[V_M_INITIALIZED:.*]] = icmp eq i8 %{{.*}}, 0334// CHECK: br i1 %[[V_M_INITIALIZED]],335// need init:336// CHECK: store i8 1, ptr @_ZGVN1VIiE1mE337// CHECK: call{{.*}} i32 @_Z1gv()338// CHECK: [[VEM_ADDR:%.+]] = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @_ZN1VIiE1mE)339// CHECK: store i32 %{{.*}}, ptr [[VEM_ADDR]], align 4340// CHECK: br label341 342// LINUX_AIX: define internal void @[[X_M_INIT]]()343// DARWIN: define internal cxx_fast_tlscc void @[[X_M_INIT]]()344// CHECK-NOT: comdat345// CHECK: load i8, ptr @_ZGVN1XIiE1mE346// CHECK: %[[X_M_INITIALIZED:.*]] = icmp eq i8 %{{.*}}, 0347// CHECK: br i1 %[[X_M_INITIALIZED]],348// need init:349// CHECK: store i8 1, ptr @_ZGVN1XIiE1mE350// LINUX: call {{.*}}__cxa_thread_atexit351// AIX: call {{.*}}__pt_atexit_np352// DARWIN: call {{.*}}_tlv_atexit353// CHECK: br label354 355// CHECK: define {{.*}}@[[GLOBAL_INIT:.*]]()356// CHECK: call void @[[C_INIT]]()357// CHECK: call void @[[E_INIT]]()358 359 360// CHECK: define {{.*}}@__tls_init()361// CHECK: load i8, ptr @__tls_guard362// CHECK: %[[NEED_TLS_INIT:.*]] = icmp eq i8 %{{.*}}, 0363// CHECK: br i1 %[[NEED_TLS_INIT]],364// init:365// CHECK: store i8 1, ptr @__tls_guard366// CHECK-OPT: call ptr @llvm.invariant.start.p0(i64 1, ptr @__tls_guard)367// CHECK-NOT: call void @[[V_M_INIT]]()368// CHECK: call void @[[A_INIT]]()369// CHECK-NOT: call void @[[V_M_INIT]]()370// CHECK: call void @[[D_INIT]]()371// CHECK-NOT: call void @[[V_M_INIT]]()372// CHECK: call void @[[U_M_INIT]]()373// CHECK-NOT: call void @[[V_M_INIT]]()374 375 376// LINUX_AIX: define weak_odr hidden noundef ptr @_ZTW1a()377// DARWIN: define cxx_fast_tlscc noundef ptr @_ZTW1a()378// LINUX_AIX: call void @_ZTH1a()379// DARWIN: call cxx_fast_tlscc void @_ZTH1a()380// CHECK: [[A_ADDR:%.+]] = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @a)381// CHECK: ret ptr [[A_ADDR]]382// CHECK: }383 384 385// Should not emit a thread wrapper for internal-linkage unused variable 'd'.386// We separately check that 'd' does in fact get initialized with the other387// thread-local variables in this TU.388// CHECK-NOT: define {{.*}} @_ZTWL1d()389 390// LINUX_AIX-LABEL: define weak_odr hidden noundef ptr @_ZTWN1U1mE()391// DARWIN-LABEL: define cxx_fast_tlscc noundef ptr @_ZTWN1U1mE()392// LINUX_AIX: call void @_ZTHN1U1mE()393// DARWIN: call cxx_fast_tlscc void @_ZTHN1U1mE()394// CHECK: [[UM_ADDR:%.+]] = call align 4 ptr @llvm.threadlocal.address.p0(ptr align 4 @_ZN1U1mE)395// CHECK: ret ptr [[UM_ADDR]]396 397// LINUX_AIX: declare extern_weak void @_ZTH1b() [[ATTR:#[0-9]+]]398 399// AIX: define linkonce_odr void @_ZTHN1WIiE1mE(){{.*}} {400// AIX-NEXT: ret void401// AIX-NEXT: }402// CHECK-NOT: @_ZTHN1WIfE1mE =403// AIX: define weak_odr void @_ZTHN1WIfE1mE(){{.*}} {404// AIX-NEXT: ret void405// AIX-NEXT: }406 407// LINUX_AIX: attributes [[ATTR]] = { {{.+}} }408