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; RUN: opt < %s -instcombine -S | FileCheck %s
; PR1570
define i1 @f(float %X, float %Y) {
entry:
%tmp3 = fcmp olt float %X, %Y ; <i1> [#uses=1]
%toBoolnot5 = xor i1 %tmp3, true ; <i1> [#uses=1]
ret i1 %toBoolnot5
; CHECK-LABEL: @f(
; CHECK-NEXT: entry:
; CHECK-NEXT: %toBoolnot5 = fcmp uge float %X, %Y
; CHECK-NEXT: ret i1 %toBoolnot5
}