0011-Make-ranger-vrp1-default.patch 3.0 KB

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  1. From 7686fe30835daa7e5fea0067f3b923bdae68c988 Mon Sep 17 00:00:00 2001
  2. From: Andrew MacLeod <amacleod@redhat.com>
  3. Date: Tue, 25 Oct 2022 16:42:41 -0400
  4. Subject: [PATCH 11/11] Make ranger vrp1 default.
  5. Turn on ranger as the default vrp1 pass and adjust testcases.
  6. gcc/
  7. * params.opt (param_vrp1_mode): Make ranger default.
  8. gcc/testsuite/
  9. * gcc.dg/pr68217.c: Test [-INF, -INF][0, 0] instead of [-INF, 0].
  10. * gcc.dg/tree-ssa/vrp-unreachable.c: New. Test unreachable removal.
  11. ---
  12. gcc/params.opt | 2 +-
  13. gcc/testsuite/gcc.dg/pr68217.c | 2 +-
  14. .../gcc.dg/tree-ssa/vrp-unreachable.c | 42 +++++++++++++++++++
  15. 3 files changed, 44 insertions(+), 2 deletions(-)
  16. create mode 100644 gcc/testsuite/gcc.dg/tree-ssa/vrp-unreachable.c
  17. diff --git a/gcc/params.opt b/gcc/params.opt
  18. index b88e1372005..f629246d9fa 100644
  19. --- a/gcc/params.opt
  20. +++ b/gcc/params.opt
  21. @@ -1185,7 +1185,7 @@ Common Joined UInteger Var(param_vect_induction_float) Init(1) IntegerRage(0, 1)
  22. Enable loop vectorization of floating point inductions.
  23. -param=vrp1-mode=
  24. -Common Joined Var(param_vrp1_mode) Enum(vrp_mode) Init(VRP_MODE_VRP) Param Optimization
  25. +Common Joined Var(param_vrp1_mode) Enum(vrp_mode) Init(VRP_MODE_RANGER) Param Optimization
  26. --param=vrp1-mode=[vrp|ranger] Specifies the mode VRP1 should operate in.
  27. -param=vrp2-mode=
  28. diff --git a/gcc/testsuite/gcc.dg/pr68217.c b/gcc/testsuite/gcc.dg/pr68217.c
  29. index eb4f15e048f..60c80106760 100644
  30. --- a/gcc/testsuite/gcc.dg/pr68217.c
  31. +++ b/gcc/testsuite/gcc.dg/pr68217.c
  32. @@ -10,4 +10,4 @@ int foo (void)
  33. return 0;
  34. }
  35. -/* { dg-final { scan-tree-dump "\\\[-INF, 0\\\]" "vrp1" } } */
  36. +/* { dg-final { scan-tree-dump "\\\[-INF, -INF\\\]\\\[0, 0\\\]" "vrp1" } } */
  37. diff --git a/gcc/testsuite/gcc.dg/tree-ssa/vrp-unreachable.c b/gcc/testsuite/gcc.dg/tree-ssa/vrp-unreachable.c
  38. new file mode 100644
  39. index 00000000000..cdc57403c6e
  40. --- /dev/null
  41. +++ b/gcc/testsuite/gcc.dg/tree-ssa/vrp-unreachable.c
  42. @@ -0,0 +1,42 @@
  43. +/* { dg-do compile } */
  44. +/* { dg-options "-O2 -fdump-tree-vrp1-alias -fdump-tree-vrp2-alias" } */
  45. +
  46. +void dead (unsigned n);
  47. +void alive (unsigned n);
  48. +
  49. +void func (unsigned n, unsigned m)
  50. +{
  51. + if (n == 0)
  52. + __builtin_unreachable();
  53. + if (n == 1)
  54. + __builtin_unreachable();
  55. + if (n & 0x1)
  56. + __builtin_unreachable();
  57. + if (n == 2)
  58. + __builtin_unreachable();
  59. + if (n == 3)
  60. + __builtin_unreachable();
  61. + if (n & 0x2)
  62. + __builtin_unreachable();
  63. + if (n == 4)
  64. + __builtin_unreachable();
  65. + if (n == 5)
  66. + __builtin_unreachable();
  67. + if (n & 0x4)
  68. + __builtin_unreachable();
  69. + if (n == 6)
  70. + __builtin_unreachable();
  71. + if (n == 7)
  72. + __builtin_unreachable();
  73. + if (n <8)
  74. + dead (n);
  75. + if (n != m)
  76. + __builtin_unreachable();
  77. + alive (n);
  78. + alive (m);
  79. +}
  80. +
  81. +/* { dg-final { scan-tree-dump-not "dead" "vrp1" } } */
  82. +/* { dg-final { scan-tree-dump-times "builtin_unreachable" 1 "vrp1" } } */
  83. +/* { dg-final { scan-tree-dump-not "builtin_unreachable" "vrp2" } } */
  84. +/* { dg-final { scan-tree-dump-times "fff8" 4 "vrp2" } } */
  85. --
  86. 2.25.1