1 // RUN: %clang_cc1 -fexceptions -fcxx-exceptions -fms-extensions -fms-compatibility -fms-compatibility-version=19 -std=c++11 -emit-llvm %s -o - -triple=i386-pc-win32 | FileCheck %s 2 // REQUIRES: asserts 3 4 struct S { 5 S(); 6 ~S(); 7 }; 8 9 // CHECK-DAG: @"\01?s@?1??f@@YAAAUS@@XZ@4U2@A" = linkonce_odr thread_local global %struct.S zeroinitializer 10 // CHECK-DAG: @"\01??__J?1??f@@YAAAUS@@XZ@51" = linkonce_odr thread_local global i32 0 11 // CHECK-DAG: @"\01?s@?1??g@@YAAAUS@@XZ@4U2@A" = linkonce_odr global %struct.S zeroinitializer 12 // CHECK-DAG: @"\01?$TSS0@?1??g@@YAAAUS@@XZ" = linkonce_odr global i32 0 13 // CHECK-DAG: @_Init_thread_epoch = external thread_local global i32, align 4 14 // CHECK-DAG: @"\01?j@?1??h@@YAAAUS@@_N@Z@4U2@A" = linkonce_odr thread_local global %struct.S zeroinitializer 15 // CHECK-DAG: @"\01??__J?1??h@@YAAAUS@@_N@Z@51" = linkonce_odr thread_local global i32 0 16 // CHECK-DAG: @"\01?i@?1??h@@YAAAUS@@_N@Z@4U2@A" = linkonce_odr global %struct.S zeroinitializer 17 // CHECK-DAG: @"\01?$TSS0@?1??h@@YAAAUS@@_N@Z" = linkonce_odr global i32 0 18 19 // CHECK-LABEL: define {{.*}} @"\01?f@@YAAAUS@@XZ"() 20 extern inline S &f() { 21 static thread_local S s; 22 // CHECK: %[[guard:.*]] = load i32, i32* @"\01??__J?1??f@@YAAAUS@@XZ@51" 23 // CHECK-NEXT: %[[mask:.*]] = and i32 %[[guard]], 1 24 // CHECK-NEXT: %[[cmp:.*]] = icmp ne i32 %[[mask]], 0 25 // CHECK-NEXT: br i1 %[[cmp]], label %[[init_end:.*]], label %[[init:.*]] 26 // 27 // CHECK: [[init]]: 28 // CHECK-NEXT: %[[or:.*]] = or i32 %[[guard]], 1 29 // CHECK-NEXT: store i32 %[[or]], i32* @"\01??__J?1??f@@YAAAUS@@XZ@51" 30 // CHECK-NEXT: invoke {{.*}} @"\01??0S@@QAE@XZ"(%struct.S* @"\01?s@?1??f@@YAAAUS@@XZ@4U2@A") 31 // CHECK-NEXT: to label %[[invoke_cont:.*]] unwind label %[[lpad:.*]] 32 // 33 // CHECK: [[invoke_cont]]: 34 // CHECK-NEXT: call i32 @__tlregdtor(void ()* @"\01??__Fs@?1??f@@YAAAUS@@XZ@YAXXZ") 35 // CHECK-NEXT: br label %[[init_end:.*]] 36 37 // CHECK: [[init_end]]: 38 // CHECK-NEXT: ret %struct.S* @"\01?s@?1??f@@YAAAUS@@XZ@4U2@A" 39 40 // CHECK: [[lpad:.*]]: 41 // CHECK-NEXT: landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) 42 // CHECK-NEXT: cleanup 43 // CHECK: %[[guard:.*]] = load i32, i32* @"\01??__J?1??f@@YAAAUS@@XZ@51" 44 // CHECK-NEXT: %[[mask:.*]] = and i32 %[[guard]], -2 45 // CHECK-NEXT: store i32 %[[mask]], i32* @"\01??__J?1??f@@YAAAUS@@XZ@51" 46 // CHECK-NEXT: br label %[[eh_resume:.*]] 47 // 48 // CHECK: [[eh_resume]]: 49 // CHECK: resume { i8*, i32 } 50 return s; 51 } 52 53 54 // CHECK-LABEL: define {{.*}} @"\01?g@@YAAAUS@@XZ"() 55 extern inline S &g() { 56 static S s; 57 // CHECK: %[[guard:.*]] = load atomic i32, i32* @"\01?$TSS0@?1??g@@YAAAUS@@XZ" unordered, align 4 58 // CHECK-NEXT: %[[epoch:.*]] = load i32, i32* @_Init_thread_epoch 59 // CHECK-NEXT: %[[cmp:.*]] = icmp sgt i32 %[[guard]], %[[epoch]] 60 // CHECK-NEXT: br i1 %[[cmp]], label %[[init_attempt:.*]], label %[[init_end:.*]] 61 // 62 // CHECK: [[init_attempt]]: 63 // CHECK-NEXT: call void @_Init_thread_header(i32* @"\01?$TSS0@?1??g@@YAAAUS@@XZ") 64 // CHECK-NEXT: %[[guard2:.*]] = load atomic i32, i32* @"\01?$TSS0@?1??g@@YAAAUS@@XZ" unordered, align 4 65 // CHECK-NEXT: %[[cmp2:.*]] = icmp eq i32 %[[guard2]], -1 66 // CHECK-NEXT: br i1 %[[cmp2]], label %[[init:.*]], label %[[init_end:.*]] 67 // 68 // CHECK: [[init]]: 69 // CHECK-NEXT: invoke {{.*}} @"\01??0S@@QAE@XZ"(%struct.S* @"\01?s@?1??g@@YAAAUS@@XZ@4U2@A") 70 // CHECK-NEXT: to label %[[invoke_cont:.*]] unwind label %[[lpad:.*]] 71 // 72 // CHECK: [[invoke_cont]]: 73 // CHECK-NEXT: call i32 @atexit(void ()* @"\01??__Fs@?1??g@@YAAAUS@@XZ@YAXXZ") 74 // CHECK-NEXT: call void @_Init_thread_footer(i32* @"\01?$TSS0@?1??g@@YAAAUS@@XZ") 75 // CHECK-NEXT: br label %init.end 76 // 77 // CHECK: [[init_end]]: 78 // CHECK-NEXT: ret %struct.S* @"\01?s@?1??g@@YAAAUS@@XZ@4U2@A" 79 // 80 // CHECK: [[lpad]]: 81 // CHECK: call void @_Init_thread_abort(i32* @"\01?$TSS0@?1??g@@YAAAUS@@XZ") 82 // CHECK-NEXT: br label %[[eh_resume:.*]] 83 // 84 // CHECK: [[eh_resume]]: 85 // CHECK: resume { i8*, i32 } 86 return s; 87 } 88 89 extern inline S&h(bool b) { 90 static thread_local S j; 91 static S i; 92 return b ? j : i; 93 } 94