; 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 }