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; RUN: llc < %s -mtriple=x86_64-windows-msvc | FileCheck %s
%struct.MakeCleanup = type { i8 }
%eh.ThrowInfo = type { i32, i32, i32, i32 }
; Function Attrs: noinline nounwind optnone uwtable
define dso_local i32 @foo() {
entry:
%call = call i32 @cond()
%tobool = icmp ne i32 %call, 0
br i1 %tobool, label %if.then, label %if.end
if.then: ; preds = %entry
call void @abort1()
unreachable
if.end: ; preds = %entry
%call1 = call i32 @cond()
%tobool2 = icmp ne i32 %call1, 0
br i1 %tobool2, label %if.then3, label %if.end4
if.then3: ; preds = %if.end
call void @abort2()
unreachable
if.end4: ; preds = %if.end
%call5 = call i32 @cond()
%tobool6 = icmp ne i32 %call5, 0
br i1 %tobool6, label %if.then7, label %if.end8
if.then7: ; preds = %if.end4
call void @abort3()
unreachable
if.end8: ; preds = %if.end4
ret i32 0
}
; CHECK-LABEL: foo:
; CHECK: callq cond
; CHECK: callq cond
; CHECK: callq cond
; We don't need int3's between these calls to abort, since they won't confuse
; the unwinder.
; CHECK: callq abort1
; CHECK-NEXT: # %if.then3
; CHECK: callq abort2
; CHECK-NEXT: # %if.then7
; CHECK: callq abort3
; CHECK-NEXT: int3
declare dso_local i32 @cond()
declare dso_local void @abort1() noreturn
declare dso_local void @abort2() noreturn
declare dso_local void @abort3() noreturn
define dso_local void @throw_exception() uwtable personality i32 (...)* @__CxxFrameHandler3 {
entry:
%o = alloca %struct.MakeCleanup, align 1
%call = invoke i32 @cond()
to label %invoke.cont unwind label %ehcleanup
invoke.cont: ; preds = %entry
%cmp1 = icmp eq i32 0, %call
br i1 %cmp1, label %if.then, label %if.end
if.then: ; preds = %invoke.cont
invoke void @_CxxThrowException(i8* null, %eh.ThrowInfo* null)
to label %unreachable unwind label %ehcleanup
if.end: ; preds = %invoke.cont
%call2 = invoke i32 @cond()
to label %invoke.cont1 unwind label %ehcleanup
invoke.cont1: ; preds = %if.end
%cmp2 = icmp eq i32 0, %call2
br i1 %cmp2, label %if.then3, label %if.end4
if.then3: ; preds = %invoke.cont1
invoke void @_CxxThrowException(i8* null, %eh.ThrowInfo* null)
to label %unreachable unwind label %ehcleanup
if.end4: ; preds = %invoke.cont1
call void @"??1MakeCleanup@@QEAA@XZ"(%struct.MakeCleanup* nonnull %o)
ret void
ehcleanup: ; preds = %if.then3, %if.end, %if.then, %entry
%cp = cleanuppad within none []
call void @"??1MakeCleanup@@QEAA@XZ"(%struct.MakeCleanup* nonnull %o) [ "funclet"(token %cp) ]
cleanupret from %cp unwind to caller
unreachable: ; preds = %if.then3, %if.then
unreachable
}
declare dso_local i32 @__CxxFrameHandler3(...)
declare dso_local void @_CxxThrowException(i8*, %eh.ThrowInfo*)
declare dso_local void @"??1MakeCleanup@@QEAA@XZ"(%struct.MakeCleanup*)
; CHECK-LABEL: throw_exception:
; CHECK: callq cond
; CHECK: je
; CHECK: callq cond
; CHECK: je
; CHECK: retq
; CHECK: callq _CxxThrowException
; CHECK-NOT: {{(addq|subq) .*, %rsp}}
; CHECK: callq _CxxThrowException
; CHECK-NOT: {{(addq|subq) .*, %rsp}}
; CHECK: # %unreachable
; CHECK: int3
; CHECK: .seh_handlerdata
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