2004-03-13-InstCombineInfLoop.ll 504 B

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  1. ; This testcase caused the combiner to go into an infinite loop, moving the
  2. ; cast back and forth, changing the seteq to operate on int vs uint and back.
  3. ; RUN: opt < %s -instcombine -disable-output
  4. define i1 @test(i32 %A, i32 %B) {
  5. %C = sub i32 0, %A ; <i32> [#uses=1]
  6. %Cc = bitcast i32 %C to i32 ; <i32> [#uses=1]
  7. %D = sub i32 0, %B ; <i32> [#uses=1]
  8. %E = icmp eq i32 %Cc, %D ; <i1> [#uses=1]
  9. ret i1 %E
  10. }