| ; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s |
| |
| ; This test was generated from the following source: |
| ; |
| ; void test() { |
| ; try { |
| ; SomeClass obj; |
| ; may_throw(); |
| ; try { |
| ; may_throw(); |
| ; } catch (int) { |
| ; handle_exception(); |
| ; } |
| ; } catch (int) { |
| ; handle_exception(); |
| ; } |
| ; } |
| ; |
| ; The code above was compiled with the -O2 option. |
| |
| ; ModuleID = 'catch-unwind.cpp' |
| target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-pc-windows-msvc" |
| |
| %rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] } |
| %class.SomeClass = type { i8 } |
| |
| $"\01??_R0H@8" = comdat any |
| |
| @"\01??_7type_info@@6B@" = external constant i8* |
| @"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { i8** @"\01??_7type_info@@6B@", i8* null, [3 x i8] c".H\00" }, comdat |
| |
| |
| ; CHECK-LABEL: define void @"\01?test@@YAXXZ"() #0 { |
| ; CHECK: entry: |
| ; CHECK: [[OBJ_PTR:\%.+]] = alloca %class.SomeClass |
| ; CHECK: [[TMP0:\%.+]] = alloca i32, align 4 |
| ; CHECK: [[TMP1:\%.+]] = alloca i32, align 4 |
| ; CHECK: call void (...) @llvm.frameescape(i32* [[TMP1]], %class.SomeClass* [[OBJ_PTR]], i32* [[TMP0]]) |
| ; CHECK: %call = invoke %class.SomeClass* @"\01??0SomeClass@@QEAA@XZ"(%class.SomeClass* %obj) |
| ; CHECK: to label %invoke.cont unwind label %[[LPAD_LABEL:lpad[0-9]+]] |
| |
| ; Function Attrs: uwtable |
| define void @"\01?test@@YAXXZ"() #0 { |
| entry: |
| %obj = alloca %class.SomeClass, align 1 |
| %0 = alloca i32, align 4 |
| %1 = alloca i32, align 4 |
| %call = invoke %class.SomeClass* @"\01??0SomeClass@@QEAA@XZ"(%class.SomeClass* %obj) |
| to label %invoke.cont unwind label %lpad |
| |
| ; CHECK: invoke.cont: |
| ; CHECK: invoke void @"\01?may_throw@@YAXXZ"() |
| ; CHECK: to label %invoke.cont2 unwind label %[[LPAD1_LABEL:lpad[0-9]+]] |
| |
| invoke.cont: ; preds = %entry |
| invoke void @"\01?may_throw@@YAXXZ"() |
| to label %invoke.cont2 unwind label %lpad1 |
| |
| ; CHECK: invoke.cont2: |
| ; CHECK: invoke void @"\01?may_throw@@YAXXZ"() |
| ; CHECK: to label %try.cont unwind label %[[LPAD3_LABEL:lpad[0-9]+]] |
| |
| invoke.cont2: ; preds = %invoke.cont |
| invoke void @"\01?may_throw@@YAXXZ"() |
| to label %try.cont unwind label %lpad3 |
| |
| ; CHECK: [[LPAD_LABEL]]:{{[ ]+}}; preds = %entry |
| ; CHECK: [[LPAD_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) |
| ; CHECK-NEXT: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) |
| ; CHECK-NEXT: [[RECOVER:\%.+]] = call i8* (...) @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32 0, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch") |
| ; CHECK-NEXT: indirectbr i8* [[RECOVER]], [label %try.cont15] |
| |
| lpad: ; preds = %entry |
| %2 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) |
| catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) |
| %3 = extractvalue { i8*, i32 } %2, 0 |
| %4 = extractvalue { i8*, i32 } %2, 1 |
| br label %catch.dispatch7 |
| |
| ; CHECK: [[LPAD1_LABEL]]:{{[ ]+}}; preds = %invoke.cont |
| ; CHECK: [[LPAD1_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) |
| ; CHECK-NEXT: cleanup |
| ; CHECK-NEXT: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) |
| ; CHECK-NEXT: [[RECOVER1:\%.+]] = call i8* (...) @llvm.eh.actions(i32 0, void (i8*, i8*)* @"\01?test@@YAXXZ.cleanup", i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32 0, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch") |
| ; CHECK-NEXT: indirectbr i8* [[RECOVER1]], [label %try.cont15] |
| |
| lpad1: ; preds = %invoke.cont |
| %5 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) |
| cleanup |
| catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) |
| %6 = extractvalue { i8*, i32 } %5, 0 |
| %7 = extractvalue { i8*, i32 } %5, 1 |
| br label %ehcleanup |
| |
| ; CHECK: [[LPAD3_LABEL]]:{{[ ]+}}; preds = %invoke.cont2 |
| ; CHECK: [[LPAD3_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) |
| ; CHECK-NEXT: cleanup |
| ; CHECK-NEXT: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) |
| ; CHECK-NEXT: [[RECOVER3:\%.+]] = call i8* (...) @llvm.eh.actions(i32 1, i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*), i32 2, i8* (i8*, i8*)* @"\01?test@@YAXXZ.catch1", i32 0, void (i8*, i8*)* @"\01?test@@YAXXZ.cleanup") |
| ; CHECK-NEXT: indirectbr i8* [[RECOVER3]], [label %try.cont] |
| |
| lpad3: ; preds = %invoke.cont2 |
| %8 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) |
| cleanup |
| catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) |
| %9 = extractvalue { i8*, i32 } %8, 0 |
| %10 = extractvalue { i8*, i32 } %8, 1 |
| %11 = call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)) #3 |
| %matches = icmp eq i32 %10, %11 |
| br i1 %matches, label %catch, label %ehcleanup |
| |
| ; CHECK-NOT: catch: |
| catch: ; preds = %lpad3 |
| %12 = bitcast i32* %0 to i8* |
| call void @llvm.eh.begincatch(i8* %9, i8* %12) #3 |
| invoke void @"\01?handle_exception@@YAXXZ"() |
| to label %invoke.cont6 unwind label %lpad5 |
| |
| ; CHECK-NOT: invoke.cont6: |
| invoke.cont6: ; preds = %catch |
| call void @llvm.eh.endcatch() #3 |
| br label %try.cont |
| |
| try.cont: ; preds = %invoke.cont2, %invoke.cont6 |
| call void @"\01??1SomeClass@@QEAA@XZ"(%class.SomeClass* %obj) #3 |
| br label %try.cont15 |
| |
| ; CHECK-NOT: lpad5: |
| lpad5: ; preds = %catch |
| %13 = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) |
| cleanup |
| catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) |
| %14 = extractvalue { i8*, i32 } %13, 0 |
| %15 = extractvalue { i8*, i32 } %13, 1 |
| call void @llvm.eh.endcatch() #3 |
| br label %ehcleanup |
| |
| ; CHECK-NOT: ehcleanup |
| ehcleanup: ; preds = %lpad5, %lpad3, %lpad1 |
| %exn.slot.0 = phi i8* [ %14, %lpad5 ], [ %9, %lpad3 ], [ %6, %lpad1 ] |
| %ehselector.slot.0 = phi i32 [ %15, %lpad5 ], [ %10, %lpad3 ], [ %7, %lpad1 ] |
| call void @"\01??1SomeClass@@QEAA@XZ"(%class.SomeClass* %obj) #3 |
| br label %catch.dispatch7 |
| |
| ; CHECK-NOT: catch.dispatch7: |
| catch.dispatch7: ; preds = %ehcleanup, %lpad |
| %exn.slot.1 = phi i8* [ %exn.slot.0, %ehcleanup ], [ %3, %lpad ] |
| %ehselector.slot.1 = phi i32 [ %ehselector.slot.0, %ehcleanup ], [ %4, %lpad ] |
| %16 = call i32 @llvm.eh.typeid.for(i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*)) #3 |
| %matches9 = icmp eq i32 %ehselector.slot.1, %16 |
| br i1 %matches9, label %catch10, label %eh.resume |
| |
| ; CHECK-NOT: catch10: |
| catch10: ; preds = %catch.dispatch7 |
| %17 = bitcast i32* %1 to i8* |
| call void @llvm.eh.begincatch(i8* %exn.slot.1, i8* %17) #3 |
| call void @"\01?handle_exception@@YAXXZ"() |
| br label %invoke.cont13 |
| |
| ; CHECK-NOT: invoke.cont13: |
| invoke.cont13: ; preds = %catch10 |
| call void @llvm.eh.endcatch() #3 |
| br label %try.cont15 |
| |
| try.cont15: ; preds = %invoke.cont13, %try.cont |
| ret void |
| |
| ; CHECK-NOT: eh.resume |
| eh.resume: ; preds = %catch.dispatch7 |
| %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn.slot.1, 0 |
| %lpad.val18 = insertvalue { i8*, i32 } %lpad.val, i32 %ehselector.slot.1, 1 |
| resume { i8*, i32 } %lpad.val18 |
| |
| ; CHECK: } |
| } |
| |
| ; CHECK-LABEL: define internal i8* @"\01?test@@YAXXZ.catch"(i8*, i8*) |
| ; CHECK: entry: |
| ; CHECK: [[RECOVER_TMP1:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 0) |
| ; CHECK: [[TMP1_PTR:\%.+]] = bitcast i8* [[RECOVER_TMP1]] to i32* |
| ; CHECK: call void @"\01?handle_exception@@YAXXZ"() |
| ; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont15) |
| ; CHECK: } |
| |
| ; CHECK-LABEL: define internal void @"\01?test@@YAXXZ.cleanup"(i8*, i8*) |
| ; CHECK: entry: |
| ; CHECK: [[RECOVER_OBJ:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 1) |
| ; CHECK: [[OBJ_PTR:\%.+]] = bitcast i8* %obj.i8 to %class.SomeClass* |
| ; CHECK: call void @"\01??1SomeClass@@QEAA@XZ"(%class.SomeClass* [[OBJ_PTR]]) |
| ; CHECK: ret void |
| ; CHECK: } |
| |
| ; CHECK-LABEL: define internal i8* @"\01?test@@YAXXZ.catch1"(i8*, i8*) |
| ; CHECK: entry: |
| ; CHECK: [[RECOVER_TMP0:\%.+]] = call i8* @llvm.framerecover(i8* bitcast (void ()* @"\01?test@@YAXXZ" to i8*), i8* %1, i32 2) |
| ; CHECK: [[TMP0_PTR:\%.+]] = bitcast i8* [[RECOVER_TMP0]] to i32* |
| ; CHECK: invoke void @"\01?handle_exception@@YAXXZ"() |
| ; CHECK: to label %invoke.cont6 unwind label %[[LPAD5_LABEL:lpad[0-9]+]] |
| ; |
| ; CHECK: invoke.cont6: ; preds = %entry |
| ; CHECK: ret i8* blockaddress(@"\01?test@@YAXXZ", %try.cont) |
| ; |
| ; CHECK: [[LPAD5_LABEL]]:{{[ ]+}}; preds = %entry |
| ; CHECK: [[LPAD5_VAL:\%.+]] = landingpad { i8*, i32 } personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) |
| ; CHECK: cleanup |
| ; CHECK: catch i8* bitcast (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i8*) |
| ; CHECK: } |
| |
| declare %class.SomeClass* @"\01??0SomeClass@@QEAA@XZ"(%class.SomeClass* returned) #1 |
| |
| declare i32 @__CxxFrameHandler3(...) |
| |
| declare void @"\01?may_throw@@YAXXZ"() #1 |
| |
| ; Function Attrs: nounwind readnone |
| declare i32 @llvm.eh.typeid.for(i8*) #2 |
| |
| ; Function Attrs: nounwind |
| declare void @llvm.eh.begincatch(i8* nocapture, i8* nocapture) #3 |
| |
| declare void @"\01?handle_exception@@YAXXZ"() #1 |
| |
| ; Function Attrs: nounwind |
| declare void @llvm.eh.endcatch() #3 |
| |
| ; Function Attrs: nounwind |
| declare void @"\01??1SomeClass@@QEAA@XZ"(%class.SomeClass*) #4 |
| |
| attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #2 = { nounwind readnone } |
| attributes #3 = { nounwind } |
| attributes #4 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| |
| !llvm.module.flags = !{!0} |
| !llvm.ident = !{!1} |
| |
| !0 = !{i32 1, !"PIC Level", i32 2} |
| !1 = !{!"clang version 3.7.0 (trunk 232069) (llvm/trunk 232070)"} |
