|  | ; RUN: opt -S -loop-reduce < %s | FileCheck %s | 
|  | target datalayout = "e-m:w-i64:64-f80:128-n8:16:32:64-S128" | 
|  | target triple = "x86_64-pc-windows-msvc19.0.24215" | 
|  |  | 
|  | define void @fn3() personality i32 (...)* @__CxxFrameHandler3 { | 
|  | entry: | 
|  | %call = invoke i32 @fn2() | 
|  | to label %for.cond.preheader unwind label %catch.dispatch2 | 
|  |  | 
|  | for.cond.preheader:                               ; preds = %entry | 
|  | br label %for.cond | 
|  |  | 
|  | for.cond:                                         ; preds = %for.cond.preheader, %for.cond | 
|  | %b.0 = phi i32 [ %inc, %for.cond ], [ %call, %for.cond.preheader ] | 
|  | %inc = add nsw i32 %b.0, 1 | 
|  | invoke void @fn1(i32 %inc) | 
|  | to label %for.cond unwind label %catch.dispatch | 
|  |  | 
|  | ; CHECK:   %[[add:.*]] = add i32 %call, 1 | 
|  | ; CHECK:   br label %for.cond | 
|  |  | 
|  | ; CHECK: for.cond:                                         ; preds = %for.cond, %for.cond.preheader | 
|  | ; CHECK:   %[[lsr_iv:.*]] = phi i32 [ %lsr.iv.next, %for.cond ], [ %[[add]], %for.cond.preheader ] | 
|  | ; CHECK:   %[[lsr_iv_next:.*]] = add i32 %lsr.iv, 1 | 
|  | ; CHECK:   invoke void @fn1(i32 %[[lsr_iv]]) | 
|  |  | 
|  |  | 
|  | catch.dispatch:                                   ; preds = %for.cond | 
|  | %0 = catchswitch within none [label %catch] unwind label %catch.dispatch2 | 
|  |  | 
|  | catch:                                            ; preds = %catch.dispatch | 
|  | %1 = catchpad within %0 [i8* null, i32 64, i8* null] | 
|  | invoke void @_CxxThrowException(i8* null, i8* null) #2 [ "funclet"(token %1) ] | 
|  | to label %unreachable unwind label %catch.dispatch2 | 
|  |  | 
|  | catch.dispatch2:                                  ; preds = %catch.dispatch, %catch, %entry | 
|  | %a.0 = phi i32 [ undef, %entry ], [ %call, %catch ], [ %call, %catch.dispatch ] | 
|  | %2 = catchswitch within none [label %catch3] unwind to caller | 
|  |  | 
|  | catch3:                                           ; preds = %catch.dispatch2 | 
|  | %3 = catchpad within %2 [i8* null, i32 64, i8* null] | 
|  | call void @fn1(i32 %a.0) [ "funclet"(token %3) ] | 
|  | catchret from %3 to label %try.cont4 | 
|  |  | 
|  | try.cont4:                                        ; preds = %catch3 | 
|  | ret void | 
|  |  | 
|  | unreachable:                                      ; preds = %catch | 
|  | unreachable | 
|  | } | 
|  |  | 
|  | declare i32 @fn2() | 
|  |  | 
|  | declare i32 @__CxxFrameHandler3(...) | 
|  |  | 
|  | declare void @fn1(i32) | 
|  |  | 
|  | declare void @_CxxThrowException(i8*, i8*) |