95 lines · cpp
1// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-cir %s -o %t.cir2// RUN: FileCheck %s -check-prefix=CIR --input-file=%t.cir3// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -fclangir -emit-llvm %s -o %t-cir.ll4// RUN: FileCheck %s -check-prefix=LLVM --input-file=%t-cir.ll5// RUN: %clang_cc1 -triple x86_64-unknown-linux-gnu -emit-llvm %s -o %t.ll6// RUN: FileCheck %s -check-prefix=OGCG --input-file=%t.ll7 8struct HasDtor {9 ~HasDtor();10};11struct S {12 static inline HasDtor hd;13};14 15// CIR: cir.global linkonce_odr comdat @_ZN1S2hdE = #cir.zero : !rec_HasDtor16 17// CIR: cir.func internal private @__cxx_global_var_init() {18// CIR: %[[HD:.*]] = cir.get_global @_ZN1S2hdE : !cir.ptr<!rec_HasDtor>19// CIR: %[[DTOR:.*]] = cir.get_global @_ZN7HasDtorD1Ev : !cir.ptr<!cir.func<(!cir.ptr<!rec_HasDtor>)>>20// CIR: %[[DTOR_CAST:.*]] = cir.cast bitcast %[[DTOR]] : !cir.ptr<!cir.func<(!cir.ptr<!rec_HasDtor>)>> -> !cir.ptr<!cir.func<(!cir.ptr<!void>)>>21// CIR: %[[HD_CAST:.*]] = cir.cast bitcast %[[HD]] : !cir.ptr<!rec_HasDtor> -> !cir.ptr<!void>22// CIR: %[[HANDLE:.*]] = cir.get_global @__dso_handle : !cir.ptr<i8>23// CIR: cir.call @__cxa_atexit(%[[DTOR_CAST]], %[[HD_CAST]], %[[HANDLE]])24 25// LLVM: @_ZN1S2hdE = linkonce_odr global %struct.HasDtor zeroinitializer, comdat26// LLVM: @_ZN5Outer5Inner2hdE = linkonce_odr global %struct.HasDtor zeroinitializer, comdat27 28// LLVM: @llvm.global_ctors = appending global [1 x { i32, ptr, ptr }] [{ i32, ptr, ptr } { i32 65535, ptr @_GLOBAL__sub_I_static_members.cpp, ptr null }]29// LLVM: define internal void @__cxx_global_var_init()30// LLVM: call void @__cxa_atexit(ptr @_ZN7HasDtorD1Ev, ptr @_ZN1S2hdE, ptr @__dso_handle)31 32// FIXME(cir): OGCG has a guard variable for this case that we don't generate in CIR.33// This is needed because the variable linkonce_odr linkage.34 35// OGCG: @_ZN1S2hdE = linkonce_odr global %struct.HasDtor zeroinitializer, comdat36// OGCG: @_ZGVN1S2hdE = linkonce_odr global i64 0, comdat($_ZN1S2hdE)37// OGCG: @_ZN5Outer5Inner2hdE = linkonce_odr global %struct.HasDtor zeroinitializer, comdat38// OGCG: @_ZGVN5Outer5Inner2hdE = linkonce_odr global i64 0, comdat($_ZN5Outer5Inner2hdE)39// OGCG: @llvm.global_ctors = appending global [2 x { i32, ptr, ptr }] [40// OGCG-SAME: { i32, ptr, ptr } { i32 65535, ptr @__cxx_global_var_init, ptr @_ZN1S2hdE },41// OGCG-SAME: { i32, ptr, ptr } { i32 65535, ptr @__cxx_global_var_init.1, ptr @_ZN5Outer5Inner2hdE }]42 43// OGCG: define internal void @__cxx_global_var_init() {{.*}} section ".text.startup" comdat($_ZN1S2hdE) {44// OGCG: %[[GUARD:.*]] = load atomic i8, ptr @_ZGVN1S2hdE acquire45// OGCG: %[[UNINIT:.*]] = icmp eq i8 %[[GUARD]], 046// OGCG: br i1 %[[UNINIT]], label %[[INIT_CHECK:.*]], label %[[INIT_END:.*]]47// OGCG: [[INIT_CHECK:.*]]:48// OGCG: %[[GUARD_ACQUIRE:.*]] = call i32 @__cxa_guard_acquire(ptr @_ZGVN1S2hdE)49// OGCG: %[[TOBOOL:.*]] = icmp ne i32 %[[GUARD_ACQUIRE]], 050// OGCG: br i1 %[[TOBOOL]], label %[[INIT:.*]], label %[[INIT_END]]51// OGCG: [[INIT:.*]]:52// OGCG: %[[ATEXIT:.*]] = call i32 @__cxa_atexit(ptr @_ZN7HasDtorD1Ev, ptr @_ZN1S2hdE, ptr @__dso_handle)53// OGCG: call void @__cxa_guard_release(ptr @_ZGVN1S2hdE)54// OGCG: br label %[[INIT_END]]55// OGCG: [[INIT_END]]:56 57struct Outer {58 struct Inner {59 static inline HasDtor hd;60 };61};62 63// CIR: cir.global linkonce_odr comdat @_ZN5Outer5Inner2hdE = #cir.zero : !rec_HasDtor64// CIR: cir.func internal private @__cxx_global_var_init.1()65// CIR: %[[HD:.*]] = cir.get_global @_ZN5Outer5Inner2hdE : !cir.ptr<!rec_HasDtor>66// CIR: %[[DTOR:.*]] = cir.get_global @_ZN7HasDtorD1Ev : !cir.ptr<!cir.func<(!cir.ptr<!rec_HasDtor>)>>67// CIR: %[[DTOR_CAST:.*]] = cir.cast bitcast %[[DTOR]] : !cir.ptr<!cir.func<(!cir.ptr<!rec_HasDtor>)>> -> !cir.ptr<!cir.func<(!cir.ptr<!void>)>>68// CIR: %[[HD_CAST:.*]] = cir.cast bitcast %[[HD]] : !cir.ptr<!rec_HasDtor> -> !cir.ptr<!void>69// CIR: %[[HANDLE:.*]] = cir.get_global @__dso_handle : !cir.ptr<i8>70// CIR: cir.call @__cxa_atexit(%[[DTOR_CAST]], %[[HD_CAST]], %[[HANDLE]]) : (!cir.ptr<!cir.func<(!cir.ptr<!void>)>>, !cir.ptr<!void>, !cir.ptr<i8>) -> ()71 72// LLVM: define internal void @__cxx_global_var_init.1()73// LLVM: call void @__cxa_atexit(ptr @_ZN7HasDtorD1Ev, ptr @_ZN5Outer5Inner2hdE, ptr @__dso_handle)74 75// OGCG: define internal void @__cxx_global_var_init.1() {{.*}} section ".text.startup" comdat($_ZN5Outer5Inner2hdE) {76// OGCG: %[[GUARD:.*]] = load atomic i8, ptr @_ZGVN5Outer5Inner2hdE acquire77// OGCG: %[[UNINIT:.*]] = icmp eq i8 %[[GUARD]], 078// OGCG: br i1 %[[UNINIT]], label %[[INIT_CHECK:.*]], label %[[INIT_END:.*]]79// OGCG: [[INIT_CHECK:.*]]:80// OGCG: %[[GUARD_ACQUIRE:.*]] = call i32 @__cxa_guard_acquire(ptr @_ZGVN5Outer5Inner2hdE)81// OGCG: %[[TOBOOL:.*]] = icmp ne i32 %[[GUARD_ACQUIRE]], 082// OGCG: br i1 %[[TOBOOL]], label %[[INIT:.*]], label %[[INIT_END]]83// OGCG: [[INIT:.*]]:84// OGCG: %[[ATEXIT:.*]] = call i32 @__cxa_atexit(ptr @_ZN7HasDtorD1Ev, ptr @_ZN5Outer5Inner2hdE, ptr @__dso_handle)85// OGCG: call void @__cxa_guard_release(ptr @_ZGVN5Outer5Inner2hdE)86// OGCG: br label %[[INIT_END]]87// OGCG: [[INIT_END]]:88 89 90// CIR: cir.func private @_GLOBAL__sub_I_static_members.cpp()91// CIR: cir.call @__cxx_global_var_init()92 93// LLVM: define void @_GLOBAL__sub_I_static_members.cpp()94// LLVM: call void @__cxx_global_var_init()95