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DirectXShaderCompiler
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DirectXShaderCo...
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test
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Transforms
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LoopStrengthReduce
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2007-04-23-UseIterator.ll

2007-04-23-UseIterator.ll 2.0 KB
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  1. ; RUN: opt < %s -loop-reduce -disable-output
    2. 

  2. 

  3. target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:32:64-v64:64:64-v128:128:128-a0:0:64"
    4. 

  4. 

  5. target triple = "i686-apple-darwin9"
    6. 

  6. 

  7. define i8* @foo( i8* %ABC) {
    8. 

  8. entry:
    9. 

  9. 	switch i8 0, label %bb129 [
    10. 

  10. 		 i8 0, label %UnifiedReturnBlock
    11. 

  11. 		 i8 9, label %UnifiedReturnBlock
    12. 

  12. 		 i8 32, label %UnifiedReturnBlock
    13. 

  13. 		 i8 35, label %UnifiedReturnBlock
    14. 

  14. 		 i8 37, label %bb16.preheader
    15. 

  15. 	]
    16. 

  16. 

  17. bb16.preheader:		; preds = %entry
    18. 

  18. 	br label %bb16
    19. 

  19. 

  20. bb16:		; preds = %cond_next102, %bb16.preheader
    21. 

  21. 	%indvar = phi i32 [ %indvar.next, %cond_next102 ], [ 0, %bb16.preheader ]		; <i32> [#uses=2]
    22. 

  22. 	%ABC.2146.0.rec = mul i32 %indvar, 3		; <i32> [#uses=1]
    23. 

  23. 	br i1 false, label %UnifiedReturnBlock.loopexit, label %cond_next102
    24. 

  24. 

  25. cond_next102:		; preds = %bb16
    26. 

  26. 	%tmp138145.rec = add i32 %ABC.2146.0.rec, 3		; <i32> [#uses=1]
    27. 

  27. 	%tmp138145 = getelementptr i8, i8* %ABC, i32 %tmp138145.rec		; <i8*> [#uses=4]
    28. 

  28. 	%indvar.next = add i32 %indvar, 1		; <i32> [#uses=1]
    29. 

  29. 	switch i8 0, label %bb129.loopexit [
    30. 

  30. 		 i8 0, label %UnifiedReturnBlock.loopexit
    31. 

  31. 		 i8 9, label %UnifiedReturnBlock.loopexit
    32. 

  32. 		 i8 32, label %UnifiedReturnBlock.loopexit
    33. 

  33. 		 i8 35, label %UnifiedReturnBlock.loopexit
    34. 

  34. 		 i8 37, label %bb16
    35. 

  35. 	]
    36. 

  36. 

  37. bb129.loopexit:		; preds = %cond_next102
    38. 

  38. 	br label %bb129
    39. 

  39. 

  40. bb129:		; preds = %bb129.loopexit, %entry
    41. 

  41. 	ret i8* null
    42. 

  42. 

  43. UnifiedReturnBlock.loopexit:		; preds = %cond_next102, %cond_next102, %cond_next102, %cond_next102, %bb16
    44. 

  44. 	%UnifiedRetVal.ph = phi i8* [ %tmp138145, %cond_next102 ], [ %tmp138145, %cond_next102 ], [ %tmp138145, %cond_next102 ], [ %tmp138145, %cond_next102 ], [ null, %bb16 ]		; <i8*> [#uses=0]
    45. 

  45. 	br label %UnifiedReturnBlock
    46. 

  46. 

  47. UnifiedReturnBlock:		; preds = %UnifiedReturnBlock.loopexit, %entry, %entry, %entry, %entry
    48. 

  48. 	ret i8* null
    49. 

  49. }
    50. 

  50. 

  51. define i8* @bar() {
    52. 

  52. entry:
    53. 

  53. 	switch i8 0, label %bb158 [
    54. 

  54. 		 i8 37, label %bb74
    55. 

  55. 		 i8 58, label %cond_true
    56. 

  56. 		 i8 64, label %bb11
    57. 

  57. 	]
    58. 

  58. 

  59. bb11:		; preds = %entry
    60. 

  60. 	ret i8* null
    61. 

  61. 

  62. cond_true:		; preds = %entry
    63. 

  63. 	ret i8* null
    64. 

  64. 

  65. bb74:		; preds = %entry
    66. 

  66. 	ret i8* null
    67. 

  67. 

  68. bb158:		; preds = %entry
    69. 

  69. 	ret i8* null
    70. 

  70. }
    71. 

  71.