simplify-demanded-bits-pointer.ll 2.6 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384
  1. ; RUN: opt < %s -instcombine -disable-output
  2. ; SimplifyDemandedBits should cope with pointer types.
  3. 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"
  4. target triple = "x86_64-unknown-linux-gnu"
  5. %struct.VEC_rtx_base = type { i32, i32, [1 x %struct.rtx_def*] }
  6. %struct.VEC_rtx_gc = type { %struct.VEC_rtx_base }
  7. %struct.block_symbol = type { [3 x %struct.rtunion], %struct.object_block*, i64 }
  8. %struct.object_block = type { %struct.section*, i32, i64, %struct.VEC_rtx_gc*, %struct.VEC_rtx_gc* }
  9. %struct.omp_clause_subcode = type { i32 }
  10. %struct.rtunion = type { i8* }
  11. %struct.rtx_def = type { i16, i8, i8, %struct.u }
  12. %struct.section = type { %struct.unnamed_section }
  13. %struct.u = type { %struct.block_symbol }
  14. %struct.unnamed_section = type { %struct.omp_clause_subcode, void (i8*)*, i8*, %struct.section* }
  15. define fastcc void @cse_insn(%struct.rtx_def* %insn, %struct.rtx_def* %libcall_insn) nounwind {
  16. entry:
  17. br i1 undef, label %bb43, label %bb88
  18. bb43: ; preds = %entry
  19. br label %bb88
  20. bb88: ; preds = %bb43, %entry
  21. br i1 undef, label %bb95, label %bb107
  22. bb95: ; preds = %bb88
  23. unreachable
  24. bb107: ; preds = %bb88
  25. %0 = load i16, i16* undef, align 8 ; <i16> [#uses=1]
  26. %1 = icmp eq i16 %0, 38 ; <i1> [#uses=1]
  27. %src_eqv_here.0 = select i1 %1, %struct.rtx_def* null, %struct.rtx_def* null ; <%struct.rtx_def*> [#uses=1]
  28. br i1 undef, label %bb127, label %bb125
  29. bb125: ; preds = %bb107
  30. br i1 undef, label %bb127, label %bb126
  31. bb126: ; preds = %bb125
  32. br i1 undef, label %bb129, label %bb133
  33. bb127: ; preds = %bb125, %bb107
  34. unreachable
  35. bb129: ; preds = %bb126
  36. br label %bb133
  37. bb133: ; preds = %bb129, %bb126
  38. br i1 undef, label %bb134, label %bb146
  39. bb134: ; preds = %bb133
  40. unreachable
  41. bb146: ; preds = %bb133
  42. br i1 undef, label %bb180, label %bb186
  43. bb180: ; preds = %bb146
  44. %2 = icmp eq %struct.rtx_def* null, null ; <i1> [#uses=1]
  45. %3 = zext i1 %2 to i8 ; <i8> [#uses=1]
  46. %4 = icmp ne %struct.rtx_def* %src_eqv_here.0, null ; <i1> [#uses=1]
  47. %5 = zext i1 %4 to i8 ; <i8> [#uses=1]
  48. %toBool181 = icmp ne i8 %3, 0 ; <i1> [#uses=1]
  49. %toBool182 = icmp ne i8 %5, 0 ; <i1> [#uses=1]
  50. %6 = and i1 %toBool181, %toBool182 ; <i1> [#uses=1]
  51. %7 = zext i1 %6 to i8 ; <i8> [#uses=1]
  52. %toBool183 = icmp ne i8 %7, 0 ; <i1> [#uses=1]
  53. br i1 %toBool183, label %bb184, label %bb186
  54. bb184: ; preds = %bb180
  55. br i1 undef, label %bb185, label %bb186
  56. bb185: ; preds = %bb184
  57. br label %bb186
  58. bb186: ; preds = %bb185, %bb184, %bb180, %bb146
  59. br i1 undef, label %bb190, label %bb195
  60. bb190: ; preds = %bb186
  61. unreachable
  62. bb195: ; preds = %bb186
  63. unreachable
  64. }