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 // CHECK-SAME: personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) 21 extern inline S &f() { 22 static thread_local S s; 23 // CHECK: %[[guard:.*]] = load i32, i32* @"\01??__J?1??f@@YAAAUS@@XZ@51" 24 // CHECK-NEXT: %[[mask:.*]] = and i32 %[[guard]], 1 25 // CHECK-NEXT: %[[cmp:.*]] = icmp ne i32 %[[mask]], 0 26 // CHECK-NEXT: br i1 %[[cmp]], label %[[init_end:.*]], label %[[init:.*]] 27 // 28 // CHECK: [[init]]: 29 // CHECK-NEXT: %[[or:.*]] = or i32 %[[guard]], 1 30 // CHECK-NEXT: store i32 %[[or]], i32* @"\01??__J?1??f@@YAAAUS@@XZ@51" 31 // CHECK-NEXT: invoke {{.*}} @"\01??0S@@QAE@XZ"(%struct.S* @"\01?s@?1??f@@YAAAUS@@XZ@4U2@A") 32 // CHECK-NEXT: to label %[[invoke_cont:.*]] unwind label %[[lpad:.*]] 33 // 34 // CHECK: [[invoke_cont]]: 35 // CHECK-NEXT: call i32 @__tlregdtor(void ()* @"\01??__Fs@?1??f@@YAAAUS@@XZ@YAXXZ") 36 // CHECK-NEXT: br label %[[init_end:.*]] 37 38 // CHECK: [[init_end]]: 39 // CHECK-NEXT: ret %struct.S* @"\01?s@?1??f@@YAAAUS@@XZ@4U2@A" 40 41 // CHECK: [[lpad:.*]]: 42 // CHECK-NEXT: cleanuppad within none [] 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: cleanupret {{.*}} unwind to caller 47 return s; 48 } 49 50 51 // CHECK-LABEL: define {{.*}} @"\01?g@@YAAAUS@@XZ"() 52 extern inline S &g() { 53 static S s; 54 // CHECK: %[[guard:.*]] = load atomic i32, i32* @"\01?$TSS0@?1??g@@YAAAUS@@XZ" unordered, align 4 55 // CHECK-NEXT: %[[epoch:.*]] = load i32, i32* @_Init_thread_epoch 56 // CHECK-NEXT: %[[cmp:.*]] = icmp sgt i32 %[[guard]], %[[epoch]] 57 // CHECK-NEXT: br i1 %[[cmp]], label %[[init_attempt:.*]], label %[[init_end:.*]] 58 // 59 // CHECK: [[init_attempt]]: 60 // CHECK-NEXT: call void @_Init_thread_header(i32* @"\01?$TSS0@?1??g@@YAAAUS@@XZ") 61 // CHECK-NEXT: %[[guard2:.*]] = load atomic i32, i32* @"\01?$TSS0@?1??g@@YAAAUS@@XZ" unordered, align 4 62 // CHECK-NEXT: %[[cmp2:.*]] = icmp eq i32 %[[guard2]], -1 63 // CHECK-NEXT: br i1 %[[cmp2]], label %[[init:.*]], label %[[init_end:.*]] 64 // 65 // CHECK: [[init]]: 66 // CHECK-NEXT: invoke {{.*}} @"\01??0S@@QAE@XZ"(%struct.S* @"\01?s@?1??g@@YAAAUS@@XZ@4U2@A") 67 // CHECK-NEXT: to label %[[invoke_cont:.*]] unwind label %[[lpad:.*]] 68 // 69 // CHECK: [[invoke_cont]]: 70 // CHECK-NEXT: call i32 @atexit(void ()* @"\01??__Fs@?1??g@@YAAAUS@@XZ@YAXXZ") 71 // CHECK-NEXT: call void @_Init_thread_footer(i32* @"\01?$TSS0@?1??g@@YAAAUS@@XZ") 72 // CHECK-NEXT: br label %init.end 73 // 74 // CHECK: [[init_end]]: 75 // CHECK-NEXT: ret %struct.S* @"\01?s@?1??g@@YAAAUS@@XZ@4U2@A" 76 // 77 // CHECK: [[lpad]]: 78 // CHECK-NEXT: cleanuppad within none [] 79 // CHECK: call void @_Init_thread_abort(i32* @"\01?$TSS0@?1??g@@YAAAUS@@XZ") 80 // CHECK-NEXT: cleanupret {{.*}} unwind to caller 81 return s; 82 } 83 84 extern inline S&h(bool b) { 85 static thread_local S j; 86 static S i; 87 return b ? j : i; 88 } 89