File: 2008-01-29-AddICmp.ll

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llvm-2.9 2.9%2Bdfsg-7
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; RUN: opt < %s -instcombine -S | not grep {a.off}
; PR1949

define i1 @test1(i32 %a) {
  %a.off = add i32 %a, 4          ; <i32> [#uses=1]
  %C = icmp ult i32 %a.off, 4             ; <i1> [#uses=1]
  ret i1 %C
}

define i1 @test2(i32 %a) {
  %a.off = sub i32 %a, 4          ; <i32> [#uses=1]
  %C = icmp ugt i32 %a.off, -5             ; <i1> [#uses=1]
  ret i1 %C
}

define i1 @test3(i32 %a) {
  %a.off = add i32 %a, 4          ; <i32> [#uses=1]
  %C = icmp slt i32 %a.off, 2147483652             ; <i1> [#uses=1]
  ret i1 %C
}