2003-08-15-PreheadersFail.ll 2.4 KB

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  1. ; RUN: opt < %s -instcombine -simplifycfg -licm -disable-output
  2. target datalayout = "e-p:32:32"
  3. @yy_base = external global [787 x i16] ; <[787 x i16]*> [#uses=1]
  4. @yy_state_ptr = external global i32* ; <i32**> [#uses=3]
  5. @yy_state_buf = external global [16386 x i32] ; <[16386 x i32]*> [#uses=1]
  6. @yy_lp = external global i32 ; <i32*> [#uses=1]
  7. define i32 @_yylex() {
  8. br label %loopentry.0
  9. loopentry.0: ; preds = %else.26, %0
  10. store i32* getelementptr ([16386 x i32], [16386 x i32]* @yy_state_buf, i64 0, i64 0), i32** @yy_state_ptr
  11. %tmp.35 = load i32*, i32** @yy_state_ptr ; <i32*> [#uses=2]
  12. %inc.0 = getelementptr i32, i32* %tmp.35, i64 1 ; <i32*> [#uses=1]
  13. store i32* %inc.0, i32** @yy_state_ptr
  14. %tmp.36 = load i32, i32* null ; <i32> [#uses=1]
  15. store i32 %tmp.36, i32* %tmp.35
  16. br label %loopexit.2
  17. loopexit.2: ; preds = %else.26, %loopexit.2, %loopentry.0
  18. store i8* null, i8** null
  19. %tmp.91 = load i32, i32* null ; <i32> [#uses=1]
  20. %tmp.92 = sext i32 %tmp.91 to i64 ; <i64> [#uses=1]
  21. %tmp.93 = getelementptr [787 x i16], [787 x i16]* @yy_base, i64 0, i64 %tmp.92 ; <i16*> [#uses=1]
  22. %tmp.94 = load i16, i16* %tmp.93 ; <i16> [#uses=1]
  23. %tmp.95 = icmp ne i16 %tmp.94, 4394 ; <i1> [#uses=1]
  24. br i1 %tmp.95, label %loopexit.2, label %yy_find_action
  25. yy_find_action: ; preds = %else.26, %loopexit.2
  26. br label %loopentry.3
  27. loopentry.3: ; preds = %then.9, %shortcirc_done.0, %yy_find_action
  28. %tmp.105 = load i32, i32* @yy_lp ; <i32> [#uses=1]
  29. %tmp.106 = icmp ne i32 %tmp.105, 0 ; <i1> [#uses=1]
  30. br i1 %tmp.106, label %shortcirc_next.0, label %shortcirc_done.0
  31. shortcirc_next.0: ; preds = %loopentry.3
  32. %tmp.114 = load i16, i16* null ; <i16> [#uses=1]
  33. %tmp.115 = sext i16 %tmp.114 to i32 ; <i32> [#uses=1]
  34. %tmp.116 = icmp slt i32 0, %tmp.115 ; <i1> [#uses=1]
  35. br label %shortcirc_done.0
  36. shortcirc_done.0: ; preds = %shortcirc_next.0, %loopentry.3
  37. %shortcirc_val.0 = phi i1 [ false, %loopentry.3 ], [ %tmp.116, %shortcirc_next.0 ] ; <i1> [#uses=1]
  38. br i1 %shortcirc_val.0, label %else.0, label %loopentry.3
  39. else.0: ; preds = %shortcirc_done.0
  40. %tmp.144 = load i32, i32* null ; <i32> [#uses=1]
  41. %tmp.145 = and i32 %tmp.144, 8192 ; <i32> [#uses=1]
  42. %tmp.146 = icmp ne i32 %tmp.145, 0 ; <i1> [#uses=1]
  43. br i1 %tmp.146, label %then.9, label %else.26
  44. then.9: ; preds = %else.0
  45. br label %loopentry.3
  46. else.26: ; preds = %else.0
  47. switch i32 0, label %loopentry.0 [
  48. i32 2, label %yy_find_action
  49. i32 0, label %loopexit.2
  50. ]
  51. }