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; RUN: opt -indvars %s -disable-output
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"

declare i32 @putchar(i8) nounwind

define void @t2(i1* %P) nounwind {
; <label>:0
  br label %1

; <label>:1                                       ; preds = %1, %0
  %2 = phi double [ 9.000000e+00, %0 ], [ %4, %1 ] ; <double> [#uses=1]
  %3 = tail call i32 @putchar(i8 72)              ; <i32> [#uses=0]
  %4 = fadd double %2, -1.000000e+00              ; <double> [#uses=2]
  %5 = fcmp ult double %4, 0.000000e+00           ; <i1> [#uses=1]
  store i1 %5, i1* %P
  br i1 %5, label %6, label %1

; <label>:6                                       ; preds = %1
  ret void
}

; PR7562
define void @fannkuch() nounwind {
entry:                                              ; preds = %entry
  br label %bb12

bb12:                                             ; preds = %bb29, %entry
  %i.1 = phi i32 [ undef, %entry ], [ %i.0, %bb29 ] ; <i32> [#uses=2]
  %r.1 = phi i32 [ undef, %entry ], [ %r.0, %bb29 ] ; <i32> [#uses=2]
  br i1 undef, label %bb13, label %bb24

bb13:                                             ; preds = %bb12
  br label %bb24

bb24:                                             ; preds = %bb30, %bb13, %bb12
  %i.2 = phi i32 [ %i.1, %bb13 ], [ %i.0, %bb30 ], [ %i.1, %bb12 ] ; <i32> [#uses=1]
  %r.0 = phi i32 [ %r.1, %bb13 ], [ %2, %bb30 ], [ %r.1, %bb12 ] ; <i32> [#uses=3]
  br label %bb28

bb27:                                             ; preds = %bb28
  %0 = add nsw i32 %i.0, 1                        ; <i32> [#uses=1]
  br label %bb28

bb28:                                             ; preds = %bb27, %bb26
  %i.0 = phi i32 [ %i.2, %bb24 ], [ %0, %bb27 ]   ; <i32> [#uses=4]
  %1 = icmp slt i32 %i.0, %r.0                    ; <i1> [#uses=1]
  br i1 %1, label %bb27, label %bb29

bb29:                                             ; preds = %bb28
  br i1 undef, label %bb12, label %bb30

bb30:                                             ; preds = %bb29
  %2 = add nsw i32 %r.0, 1                        ; <i32> [#uses=1]
  br label %bb24
}