| ; RUN: llc < %s | FileCheck %s |
| |
| ; Started from this code: |
| ; void f() { |
| ; try { |
| ; try { |
| ; throw 42; |
| ; } catch (int) { |
| ; } |
| ; try { |
| ; throw 42; |
| ; } catch (int) { |
| ; } |
| ; } catch (int) { |
| ; } |
| ; } |
| |
| ; Don't tail merge the calls. |
| ; CHECK: calll __CxxThrowException@8 |
| ; CHECK: calll __CxxThrowException@8 |
| |
| ; ModuleID = 'cppeh-pingpong.cpp' |
| target datalayout = "e-m:x-p:32:32-i64:64-f80:32-n8:16:32-a:0:32-S32" |
| target triple = "i686-pc-windows-msvc" |
| |
| %rtti.TypeDescriptor2 = type { ptr, ptr, [3 x i8] } |
| %eh.CatchableType = type { i32, ptr, i32, i32, i32, i32, ptr } |
| %eh.CatchableTypeArray.1 = type { i32, [1 x ptr] } |
| %eh.ThrowInfo = type { i32, ptr, ptr, ptr } |
| |
| $"\01??_R0H@8" = comdat any |
| |
| $"_CT??_R0H@84" = comdat any |
| |
| $_CTA1H = comdat any |
| |
| $_TI1H = comdat any |
| |
| @"\01??_7type_info@@6B@" = external constant ptr |
| @"\01??_R0H@8" = linkonce_odr global %rtti.TypeDescriptor2 { ptr @"\01??_7type_info@@6B@", ptr null, [3 x i8] c".H\00" }, comdat |
| @"_CT??_R0H@84" = linkonce_odr unnamed_addr constant %eh.CatchableType { i32 1, ptr @"\01??_R0H@8", i32 0, i32 -1, i32 0, i32 4, ptr null }, section ".xdata", comdat |
| @_CTA1H = linkonce_odr unnamed_addr constant %eh.CatchableTypeArray.1 { i32 1, [1 x ptr] [ptr @"_CT??_R0H@84"] }, section ".xdata", comdat |
| @_TI1H = linkonce_odr unnamed_addr constant %eh.ThrowInfo { i32 0, ptr null, ptr null, ptr @_CTA1H }, section ".xdata", comdat |
| |
| define void @"\01?f@@YAXXZ"() #0 personality ptr @__CxxFrameHandler3 { |
| entry: |
| %i = alloca i32, align 4 |
| %tmp = alloca i32, align 4 |
| %tmp1 = alloca i32, align 4 |
| store i32 0, ptr %i, align 4 |
| store i32 42, ptr %tmp, align 4 |
| invoke void @_CxxThrowException(ptr %tmp, ptr @_TI1H) #1 |
| to label %unreachable unwind label %catch.dispatch |
| |
| catch.dispatch: ; preds = %entry |
| %cs1 = catchswitch within none [label %catch] unwind label %catch.dispatch.7 |
| |
| catch: ; preds = %catch.dispatch |
| %0 = catchpad within %cs1 [ptr @"\01??_R0H@8", i32 0, ptr null] |
| catchret from %0 to label %catchret.dest |
| |
| catchret.dest: ; preds = %catch |
| br label %try.cont |
| |
| try.cont: ; preds = %catchret.dest |
| store i32 42, ptr %tmp1, align 4 |
| invoke void @_CxxThrowException(ptr %tmp1, ptr @_TI1H) #1 |
| to label %unreachable unwind label %catch.dispatch.2 |
| |
| catch.dispatch.2: ; preds = %try.cont |
| %cs2 = catchswitch within none [label %catch.4] unwind label %catch.dispatch.7 |
| |
| catch.4: ; preds = %catch.dispatch.2 |
| %1 = catchpad within %cs2 [ptr @"\01??_R0H@8", i32 0, ptr null] |
| catchret from %1 to label %catchret.dest.5 |
| |
| catchret.dest.5: ; preds = %catch.4 |
| br label %try.cont.6 |
| |
| try.cont.6: ; preds = %catchret.dest.5 |
| br label %try.cont.11 |
| |
| catch.dispatch.7: |
| %cs3 = catchswitch within none [label %catch.9] unwind to caller |
| |
| catch.9: ; preds = %catch.dispatch.7 |
| %2 = catchpad within %cs3 [ptr @"\01??_R0H@8", i32 0, ptr null] |
| catchret from %2 to label %catchret.dest.10 |
| |
| catchret.dest.10: ; preds = %catch.9 |
| br label %try.cont.11 |
| |
| try.cont.11: ; preds = %catchret.dest.10, %try.cont.6 |
| ret void |
| |
| unreachable: ; preds = %try.cont, %entry |
| unreachable |
| } |
| |
| declare x86_stdcallcc void @_CxxThrowException(ptr, ptr) |
| |
| declare i32 @__CxxFrameHandler3(...) |
| |
| attributes #0 = { "disable-tail-calls"="false" "less-precise-fpmad"="false" "frame-pointer"="none" "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 = { noreturn } |