| ; RUN: opt -mtriple=x86_64-pc-windows-msvc -winehprepare -S -o - < %s | FileCheck %s |
| |
| ; This test is based on the following code: |
| ; |
| ; class Obj { |
| ; public: |
| ; ~Obj(); |
| ; }; |
| ; |
| ; void test(void) |
| ; { |
| ; try { |
| ; Obj o; |
| ; throw 1; |
| ; } catch (...) { |
| ; throw; |
| ; } |
| ; } |
| |
| ; ModuleID = 'cppeh-catch-and-throw.cpp' |
| target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128" |
| target triple = "x86_64-pc-windows-msvc" |
| |
| %rtti.TypeDescriptor2 = type { i8**, i8*, [3 x i8] } |
| %eh.CatchableType = type { i32, i32, i32, i32, i32, i32, i32 } |
| %eh.CatchableTypeArray.1 = type { i32, [1 x i32] } |
| %eh.ThrowInfo = type { i32, i32, i32, i32 } |
| %class.Obj = type { i8 } |
| |
| $"\01??_R0H@8" = comdat any |
| |
| $"_CT??_R0H@84" = comdat any |
| |
| $_CTA1H = comdat any |
| |
| $_TI1H = 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 |
| @__ImageBase = external constant i8 |
| @"_CT??_R0H@84" = linkonce_odr unnamed_addr constant %eh.CatchableType { i32 1, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%rtti.TypeDescriptor2* @"\01??_R0H@8" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32), i32 0, i32 -1, i32 0, i32 4, i32 0 }, section ".xdata", comdat |
| @_CTA1H = linkonce_odr unnamed_addr constant %eh.CatchableTypeArray.1 { i32 1, [1 x i32] [i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%eh.CatchableType* @"_CT??_R0H@84" to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32)] }, section ".xdata", comdat |
| @_TI1H = linkonce_odr unnamed_addr constant %eh.ThrowInfo { i32 0, i32 0, i32 0, i32 trunc (i64 sub nuw nsw (i64 ptrtoint (%eh.CatchableTypeArray.1* @_CTA1H to i64), i64 ptrtoint (i8* @__ImageBase to i64)) to i32) }, section ".xdata", comdat |
| |
| ; This is just a minimal check to verify that main was handled by WinEHPrepare. |
| ; CHECK: define void @"\01?test@@YAXXZ"() |
| ; CHECK: entry: |
| ; CHECK: call void (...) @llvm.localescape |
| ; CHECK: invoke void @_CxxThrowException |
| ; CHECK: } |
| |
| ; Function Attrs: uwtable |
| define void @"\01?test@@YAXXZ"() #0 personality i8* bitcast (i32 (...)* @__CxxFrameHandler3 to i8*) { |
| entry: |
| %o = alloca %class.Obj, align 1 |
| %tmp = alloca i32, align 4 |
| %exn.slot = alloca i8* |
| %ehselector.slot = alloca i32 |
| store i32 1, i32* %tmp |
| %0 = bitcast i32* %tmp to i8* |
| invoke void @_CxxThrowException(i8* %0, %eh.ThrowInfo* @_TI1H) #3 |
| to label %unreachable unwind label %lpad |
| |
| lpad: ; preds = %entry |
| %1 = landingpad { i8*, i32 } |
| catch i8* null |
| %2 = extractvalue { i8*, i32 } %1, 0 |
| store i8* %2, i8** %exn.slot |
| %3 = extractvalue { i8*, i32 } %1, 1 |
| store i32 %3, i32* %ehselector.slot |
| call void @"\01??1Obj@@QEAA@XZ"(%class.Obj* %o) #2 |
| br label %catch |
| |
| catch: ; preds = %lpad |
| %exn = load i8*, i8** %exn.slot |
| call void @llvm.eh.begincatch(i8* %exn, i8* null) #2 |
| invoke void @_CxxThrowException(i8* null, %eh.ThrowInfo* null) #3 |
| to label %unreachable unwind label %lpad1 |
| |
| lpad1: ; preds = %catch |
| %4 = landingpad { i8*, i32 } |
| cleanup |
| %5 = extractvalue { i8*, i32 } %4, 0 |
| store i8* %5, i8** %exn.slot |
| %6 = extractvalue { i8*, i32 } %4, 1 |
| store i32 %6, i32* %ehselector.slot |
| call void @llvm.eh.endcatch() #2 |
| br label %eh.resume |
| |
| try.cont: ; No predecessors! |
| ret void |
| |
| eh.resume: ; preds = %lpad1 |
| %exn2 = load i8*, i8** %exn.slot |
| %sel = load i32, i32* %ehselector.slot |
| %lpad.val = insertvalue { i8*, i32 } undef, i8* %exn2, 0 |
| %lpad.val3 = insertvalue { i8*, i32 } %lpad.val, i32 %sel, 1 |
| resume { i8*, i32 } %lpad.val3 |
| |
| unreachable: ; preds = %catch, %entry |
| unreachable |
| } |
| |
| ; Verify that we inserted a stub invoke into the outlined cleanup handler. |
| ; |
| ; CHECK-LABEL: define internal void @"\01?test@@YAXXZ.cleanup"(i8*, i8*) |
| ; CHECK: entry: |
| ; CHECK: call i8* @llvm.localrecover |
| ; CHECK: call void @"\01??1Obj@@QEAA@XZ" |
| ; CHECK: invoke void @llvm.donothing() |
| ; CHECK: to label %[[SPLIT_LABEL:.+]] unwind label %[[LPAD_LABEL:.+]] |
| ; |
| ; CHECK: [[SPLIT_LABEL]] |
| ; |
| ; CHECK: [[LPAD_LABEL]] |
| ; CHECK: landingpad { i8*, i32 } |
| ; CHECK: cleanup |
| ; CHECK: unreachable |
| ; CHECK: } |
| |
| declare void @_CxxThrowException(i8*, %eh.ThrowInfo*) |
| |
| declare i32 @__CxxFrameHandler3(...) |
| |
| ; Function Attrs: nounwind |
| declare void @"\01??1Obj@@QEAA@XZ"(%class.Obj*) #1 |
| |
| ; Function Attrs: nounwind |
| declare void @llvm.eh.begincatch(i8* nocapture, i8* nocapture) #2 |
| |
| ; Function Attrs: nounwind |
| declare void @llvm.eh.endcatch() #2 |
| |
| 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" "target-cpu"="x86-64" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #1 = { 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" "target-cpu"="x86-64" "unsafe-fp-math"="false" "use-soft-float"="false" } |
| attributes #2 = { nounwind } |
| attributes #3 = { noreturn } |
| |
| !llvm.module.flags = !{!0} |
| !llvm.ident = !{!1} |
| |
| !0 = !{i32 1, !"PIC Level", i32 2} |
| !1 = !{!"clang version 3.7.0 (trunk 235214) (llvm/trunk 235213)"} |