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bittest.ll 1.2 KB

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  1. ; RUN: opt < %s -instcombine -simplifycfg -S |\
  2. ; RUN: not grep "call void @abort"
  3. @b_rec.0 = external global i32 ; <i32*> [#uses=2]
  4. define void @_Z12h000007_testv(i32* %P) {
  5. entry:
  6. %tmp.2 = load i32, i32* @b_rec.0 ; <i32> [#uses=1]
  7. %tmp.9 = or i32 %tmp.2, -989855744 ; <i32> [#uses=2]
  8. %tmp.16 = and i32 %tmp.9, -805306369 ; <i32> [#uses=2]
  9. %tmp.17 = and i32 %tmp.9, -973078529 ; <i32> [#uses=1]
  10. store i32 %tmp.17, i32* @b_rec.0
  11. %tmp.17.shrunk = bitcast i32 %tmp.16 to i32 ; <i32> [#uses=1]
  12. %tmp.22 = and i32 %tmp.17.shrunk, -1073741824 ; <i32> [#uses=1]
  13. %tmp.23 = icmp eq i32 %tmp.22, -1073741824 ; <i1> [#uses=1]
  14. br i1 %tmp.23, label %endif.0, label %then.0
  15. then.0: ; preds = %entry
  16. tail call void @abort( )
  17. unreachable
  18. endif.0: ; preds = %entry
  19. %tmp.17.shrunk2 = bitcast i32 %tmp.16 to i32 ; <i32> [#uses=1]
  20. %tmp.27.mask = and i32 %tmp.17.shrunk2, 100663295 ; <i32> [#uses=1]
  21. store i32 %tmp.27.mask, i32* %P
  22. ret void
  23. }
  24. declare void @abort()