1; RUN: opt -S -loop-reduce < %s | FileCheck %s
2target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128"
3target triple = "x86_64-pc-windows-msvc19.0.24215"
4
5define void @fn3() personality i32 (...)* @__CxxFrameHandler3 {
6entry:
7  %call = invoke i32 @fn2()
8          to label %for.cond.preheader unwind label %catch.dispatch2
9
10for.cond.preheader:                               ; preds = %entry
11  br label %for.cond
12
13for.cond:                                         ; preds = %for.cond.preheader, %for.cond
14  %b.0 = phi i32 [ %inc, %for.cond ], [ %call, %for.cond.preheader ]
15  %inc = add nsw i32 %b.0, 1
16  invoke void @fn1(i32 %inc)
17          to label %for.cond unwind label %catch.dispatch
18
19; CHECK:   %[[add:.*]] = add i32 %call, 1
20; CHECK:   br label %for.cond
21
22; CHECK: for.cond:                                         ; preds = %for.cond, %for.cond.preheader
23; CHECK:   %[[lsr_iv:.*]] = phi i32 [ %lsr.iv.next, %for.cond ], [ %[[add]], %for.cond.preheader ]
24; CHECK:   %[[lsr_iv_next:.*]] = add i32 %lsr.iv, 1
25; CHECK:   invoke void @fn1(i32 %[[lsr_iv]])
26
27
28catch.dispatch:                                   ; preds = %for.cond
29  %0 = catchswitch within none [label %catch] unwind label %catch.dispatch2
30
31catch:                                            ; preds = %catch.dispatch
32  %1 = catchpad within %0 [i8* null, i32 64, i8* null]
33  invoke void @_CxxThrowException(i8* null, i8* null) #2 [ "funclet"(token %1) ]
34          to label %unreachable unwind label %catch.dispatch2
35
36catch.dispatch2:                                  ; preds = %catch.dispatch, %catch, %entry
37  %a.0 = phi i32 [ undef, %entry ], [ %call, %catch ], [ %call, %catch.dispatch ]
38  %2 = catchswitch within none [label %catch3] unwind to caller
39
40catch3:                                           ; preds = %catch.dispatch2
41  %3 = catchpad within %2 [i8* null, i32 64, i8* null]
42  call void @fn1(i32 %a.0) [ "funclet"(token %3) ]
43  catchret from %3 to label %try.cont4
44
45try.cont4:                                        ; preds = %catch3
46  ret void
47
48unreachable:                                      ; preds = %catch
49  unreachable
50}
51
52declare i32 @fn2()
53
54declare i32 @__CxxFrameHandler3(...)
55
56declare void @fn1(i32)
57
58declare void @_CxxThrowException(i8*, i8*)
59