trip-count5.ll 2.2 KB

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  1. ; RUN: opt < %s -analyze -scalar-evolution > %t
  2. ; RUN: grep sext %t | count 2
  3. ; RUN: not grep "(sext" %t
  4. ; ScalarEvolution should be able to compute a maximum trip count
  5. ; value sufficient to fold away both sext casts.
  6. 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"
  7. define float @t(float* %pTmp1, float* %peakWeight, float* %nrgReducePeakrate, i32 %bim) nounwind {
  8. entry:
  9. %tmp3 = load float, float* %peakWeight, align 4 ; <float> [#uses=2]
  10. %tmp2538 = icmp sgt i32 %bim, 0 ; <i1> [#uses=1]
  11. br i1 %tmp2538, label %bb.nph, label %bb4
  12. bb.nph: ; preds = %entry
  13. br label %bb
  14. bb: ; preds = %bb1, %bb.nph
  15. %distERBhi.036 = phi float [ %tmp10, %bb1 ], [ 0.000000e+00, %bb.nph ] ; <float> [#uses=1]
  16. %hiPart.035 = phi i32 [ %tmp12, %bb1 ], [ 0, %bb.nph ] ; <i32> [#uses=2]
  17. %peakCount.034 = phi float [ %tmp19, %bb1 ], [ %tmp3, %bb.nph ] ; <float> [#uses=1]
  18. %tmp6 = sext i32 %hiPart.035 to i64 ; <i64> [#uses=1]
  19. %tmp7 = getelementptr float, float* %pTmp1, i64 %tmp6 ; <float*> [#uses=1]
  20. %tmp8 = load float, float* %tmp7, align 4 ; <float> [#uses=1]
  21. %tmp10 = fadd float %tmp8, %distERBhi.036 ; <float> [#uses=3]
  22. %tmp12 = add i32 %hiPart.035, 1 ; <i32> [#uses=3]
  23. %tmp15 = sext i32 %tmp12 to i64 ; <i64> [#uses=1]
  24. %tmp16 = getelementptr float, float* %peakWeight, i64 %tmp15 ; <float*> [#uses=1]
  25. %tmp17 = load float, float* %tmp16, align 4 ; <float> [#uses=1]
  26. %tmp19 = fadd float %tmp17, %peakCount.034 ; <float> [#uses=2]
  27. br label %bb1
  28. bb1: ; preds = %bb
  29. %tmp21 = fcmp olt float %tmp10, 2.500000e+00 ; <i1> [#uses=1]
  30. %tmp25 = icmp slt i32 %tmp12, %bim ; <i1> [#uses=1]
  31. %tmp27 = and i1 %tmp21, %tmp25 ; <i1> [#uses=1]
  32. br i1 %tmp27, label %bb, label %bb1.bb4_crit_edge
  33. bb1.bb4_crit_edge: ; preds = %bb1
  34. br label %bb4
  35. bb4: ; preds = %bb1.bb4_crit_edge, %entry
  36. %distERBhi.0.lcssa = phi float [ %tmp10, %bb1.bb4_crit_edge ], [ 0.000000e+00, %entry ] ; <float> [#uses=1]
  37. %peakCount.0.lcssa = phi float [ %tmp19, %bb1.bb4_crit_edge ], [ %tmp3, %entry ] ; <float> [#uses=1]
  38. %tmp31 = fdiv float %peakCount.0.lcssa, %distERBhi.0.lcssa ; <float> [#uses=1]
  39. ret float %tmp31
  40. }