| 1 | // RUN: %clang_cc1 -std=c++11 -fblocks -fms-extensions %s -triple=x86_64-windows-msvc -emit-llvm \ |
| 2 | // RUN: -o - -mconstructor-aliases -fcxx-exceptions -fexceptions | \ |
| 3 | // RUN: FileCheck %s --check-prefix=CHECK --check-prefix=CXXEH |
| 4 | // RUN: %clang_cc1 -std=c++11 -fblocks -fms-extensions %s -triple=x86_64-windows-msvc -emit-llvm \ |
| 5 | // RUN: -o - -mconstructor-aliases -O1 -disable-llvm-passes | \ |
| 6 | // RUN: FileCheck %s --check-prefix=CHECK --check-prefix=NOCXX |
| 7 | |
| 8 | extern "C" unsigned long _exception_code(); |
| 9 | extern "C" void might_throw(); |
| 10 | |
| 11 | struct HasCleanup { |
| 12 | HasCleanup(); |
| 13 | ~HasCleanup(); |
| 14 | int padding; |
| 15 | }; |
| 16 | |
| 17 | extern "C" void use_cxx() { |
| 18 | HasCleanup x; |
| 19 | might_throw(); |
| 20 | } |
| 21 | |
| 22 | // Make sure we use __CxxFrameHandler3 for C++ EH. |
| 23 | |
| 24 | // CXXEH-LABEL: define dso_local void @use_cxx() |
| 25 | // CXXEH-SAME: personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) |
| 26 | // CXXEH: call %struct.HasCleanup* @"??0HasCleanup@@QEAA@XZ"(%struct.HasCleanup* %{{.*}}) |
| 27 | // CXXEH: invoke void @might_throw() |
| 28 | // CXXEH: to label %[[cont:[^ ]*]] unwind label %[[lpad:[^ ]*]] |
| 29 | // |
| 30 | // CXXEH: [[cont]] |
| 31 | // CXXEH: call void @"??1HasCleanup@@QEAA@XZ"(%struct.HasCleanup* %{{.*}}) |
| 32 | // CXXEH: ret void |
| 33 | // |
| 34 | // CXXEH: [[lpad]] |
| 35 | // CXXEH: cleanuppad |
| 36 | // CXXEH: call void @"??1HasCleanup@@QEAA@XZ"(%struct.HasCleanup* %{{.*}}) |
| 37 | // CXXEH: cleanupret |
| 38 | |
| 39 | // NOCXX-LABEL: define dso_local void @use_cxx() |
| 40 | // NOCXX-NOT: invoke |
| 41 | // NOCXX: call %struct.HasCleanup* @"??0HasCleanup@@QEAA@XZ"(%struct.HasCleanup* %{{.*}}) |
| 42 | // NOCXX-NOT: invoke |
| 43 | // NOCXX: call void @might_throw() |
| 44 | // NOCXX-NOT: invoke |
| 45 | // NOCXX: call void @"??1HasCleanup@@QEAA@XZ"(%struct.HasCleanup* %{{.*}}) |
| 46 | // NOCXX-NOT: invoke |
| 47 | // NOCXX: ret void |
| 48 | |
| 49 | extern "C" void use_seh() { |
| 50 | __try { |
| 51 | might_throw(); |
| 52 | } __except(1) { |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | // Make sure we use __C_specific_handler for SEH. |
| 57 | |
| 58 | // CHECK-LABEL: define dso_local void @use_seh() |
| 59 | // CHECK-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*) |
| 60 | // CHECK: invoke void @might_throw() #[[NOINLINE:[0-9]+]] |
| 61 | // CHECK: to label %[[cont:[^ ]*]] unwind label %[[lpad:[^ ]*]] |
| 62 | // |
| 63 | // CHECK: [[lpad]] |
| 64 | // CHECK-NEXT: %[[switch:.*]] = catchswitch within none [label %[[cpad:.*]]] unwind to caller |
| 65 | // |
| 66 | // CHECK: [[cpad]] |
| 67 | // CHECK-NEXT: catchpad within %[[switch]] |
| 68 | // CHECK: catchret {{.*}} label %[[except:[^ ]*]] |
| 69 | // |
| 70 | // CHECK: [[except]] |
| 71 | // CHECK: br label %[[ret:[^ ]*]] |
| 72 | // |
| 73 | // CHECK: [[ret]] |
| 74 | // CHECK: ret void |
| 75 | // |
| 76 | // CHECK: [[cont]] |
| 77 | // CHECK: br label %[[ret]] |
| 78 | |
| 79 | extern "C" void nested_finally() { |
| 80 | __try { |
| 81 | might_throw(); |
| 82 | } __finally { |
| 83 | __try { |
| 84 | might_throw(); |
| 85 | } __finally { |
| 86 | } |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | // CHECK-LABEL: define dso_local void @nested_finally() #{{[0-9]+}} |
| 91 | // CHECK-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*) |
| 92 | // CHECK: invoke void @might_throw() |
| 93 | // CHECK: call void @"?fin$0@0@nested_finally@@"(i8 1, i8* {{.*}}) |
| 94 | |
| 95 | // CHECK-LABEL: define internal void @"?fin$0@0@nested_finally@@" |
| 96 | // CHECK-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*) |
| 97 | // CHECK: invoke void @might_throw() |
| 98 | // CHECK: call void @"?fin$1@0@nested_finally@@"(i8 1, i8* {{.*}}) |
| 99 | |
| 100 | void use_seh_in_lambda() { |
| 101 | ([]() { |
| 102 | __try { |
| 103 | might_throw(); |
| 104 | } __except(1) { |
| 105 | } |
| 106 | })(); |
| 107 | HasCleanup x; |
| 108 | might_throw(); |
| 109 | } |
| 110 | |
| 111 | // CXXEH-LABEL: define dso_local void @"?use_seh_in_lambda@@YAXXZ"() |
| 112 | // CXXEH-SAME: personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) |
| 113 | // CXXEH: cleanuppad |
| 114 | |
| 115 | // NOCXX-LABEL: define dso_local void @"?use_seh_in_lambda@@YAXXZ"() |
| 116 | // NOCXX-NOT: invoke |
| 117 | // NOCXX: ret void |
| 118 | |
| 119 | // CHECK-LABEL: define internal void @"??R<lambda_0>@?0??use_seh_in_lambda@@YAXXZ@QEBA@XZ"(%class.anon* %this) |
| 120 | // CXXEH-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*) |
| 121 | // CHECK: invoke void @might_throw() #[[NOINLINE]] |
| 122 | // CHECK: catchpad |
| 123 | |
| 124 | static int my_unique_global; |
| 125 | |
| 126 | extern "C" inline void use_seh_in_inline_func() { |
| 127 | __try { |
| 128 | might_throw(); |
| 129 | } __except(_exception_code() == 424242) { |
| 130 | } |
| 131 | __try { |
| 132 | might_throw(); |
| 133 | } __finally { |
| 134 | my_unique_global = 1234; |
| 135 | } |
| 136 | } |
| 137 | |
| 138 | void use_inline() { |
| 139 | use_seh_in_inline_func(); |
| 140 | } |
| 141 | |
| 142 | // CHECK-LABEL: define linkonce_odr dso_local void @use_seh_in_inline_func() #{{[0-9]+}} |
| 143 | // CHECK-SAME: personality i8* bitcast (i32 (...)* @__C_specific_handler to i8*) |
| 144 | // CHECK: invoke void @might_throw() |
| 145 | // |
| 146 | // CHECK: catchpad {{.*}} [i8* bitcast (i32 (i8*, i8*)* @"?filt$0@0@use_seh_in_inline_func@@" to i8*)] |
| 147 | // |
| 148 | // CHECK: invoke void @might_throw() |
| 149 | // |
| 150 | // CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress() |
| 151 | // CHECK: call void @"?fin$0@0@use_seh_in_inline_func@@"(i8 0, i8* %[[fp]]) |
| 152 | // CHECK: ret void |
| 153 | // |
| 154 | // CHECK: cleanuppad |
| 155 | // CHECK: %[[fp:[^ ]*]] = call i8* @llvm.localaddress() |
| 156 | // CHECK: call void @"?fin$0@0@use_seh_in_inline_func@@"(i8 1, i8* %[[fp]]) |
| 157 | |
| 158 | // CHECK-LABEL: define internal i32 @"?filt$0@0@use_seh_in_inline_func@@"(i8* %exception_pointers, i8* %frame_pointer) #{{[0-9]+}} |
| 159 | // CHECK: icmp eq i32 %{{.*}}, 424242 |
| 160 | // CHECK: zext i1 %{{.*}} to i32 |
| 161 | // CHECK: ret i32 |
| 162 | |
| 163 | // CHECK-LABEL: define internal void @"?fin$0@0@use_seh_in_inline_func@@"(i8 %abnormal_termination, i8* %frame_pointer) #{{[0-9]+}} |
| 164 | // CHECK: store i32 1234, i32* @my_unique_global |
| 165 | |
| 166 | // CHECK: attributes #[[NOINLINE]] = { {{.*noinline.*}} } |
| 167 | |