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kernel / pub / scm / linux / kernel / git / palmer / sparse / 99bf609861c3bc9ba313a81642988da92838c9e2
commit99bf609861c3bc9ba313a81642988da92838c9e2[log] [tgz]
authorLuc Van Oostenryck <luc.vanoostenryck@gmail.com>Sat Mar 13 14:03:20 2021 +0100
committerLuc Van Oostenryck <luc.vanoostenryck@gmail.com>Sun Apr 18 23:45:41 2021 +0200
treedb342d7d500b04e2029f175a87ac952401db6728
parenteb4cdd21b7d0cedbbeff7f70e24473706ccce5a6 [diff]
TRUNC(x) {==,!=} C --> AND(x,M) {==,!=} C

It's not 100% clear than this is indeed a simplification but:
1) from a pure instruction count point of view, it doesn't make
   things worst
2) in most place where it applies, the masking is made redundant
   and is thus eliminated

Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
1 file changed
tree: db342d7d500b04e2029f175a87ac952401db6728
  1. compat/
  2. Documentation/
  3. gvpr/
  4. validation/
  5. .gitignore
  6. allocate.c
  7. allocate.h
  8. ast-inspect.c
  9. ast-inspect.h
  10. ast-model.c
  11. ast-model.h
  12. ast-view.c
  13. ast-view.h
  14. bitmap.h
  15. bits.h
  16. builtin.c
  17. builtin.h
  18. c2xml.c
  19. cgcc
  20. cgcc.1
  21. char.c
  22. char.h
  23. compat-bsd.c
  24. compat-cygwin.c
  25. compat-linux.c
  26. compat-mingw.c
  27. compat-solaris.c
  28. compat.h
  29. compile-i386.c
  30. compile.c
  31. compile.h
  32. cse.c
  33. cse.h
  34. ctags.c
  35. dissect.c
  36. dissect.h
  37. dominate.c
  38. dominate.h
  39. evaluate.c
  40. evaluate.h
  41. example.c
  42. expand.c
  43. expand.h
  44. expression.c
  45. expression.h
  46. FAQ
  47. flow.c
  48. flow.h
  49. flowgraph.c
  50. flowgraph.h
  51. gcc-attr-list.h
  52. gdbhelpers
  53. graph.c
  54. ident-list.h
  55. inline.c
  56. ir.c
  57. ir.h
  58. lib.c
  59. lib.h
  60. LICENSE
  61. linearize.c
  62. linearize.h
  63. liveness.c
  64. liveness.h
  65. machine.h
  66. Makefile
  67. memops.c
  68. obfuscate.c
  69. opcode.c
  70. opcode.def
  71. opcode.h
  72. optimize.c
  73. optimize.h
  74. options.c
  75. options.h
  76. parse.c
  77. parse.dtd
  78. parse.h
  79. pre-process.c
  80. predefine.c
  81. ptrlist.c
  82. ptrlist.h
  83. ptrmap.c
  84. ptrmap.h
  85. README
  86. scope.c
  87. scope.h
  88. semind.1
  89. semind.c
  90. show-parse.c
  91. simplify.c
  92. simplify.h
  93. sort.c
  94. sparse-llvm-dis
  95. sparse-llvm.c
  96. sparse.1
  97. sparse.c
  98. sparsec
  99. sparsei
  100. ssa.c
  101. ssa.h
  102. sset.c
  103. sset.h
  104. stats.c
  105. storage.c
  106. storage.h
  107. symbol.c
  108. symbol.h
  109. target-alpha.c
  110. target-arm.c
  111. target-arm64.c
  112. target-bfin.c
  113. target-default.c
  114. target-h8300.c
  115. target-m68k.c
  116. target-microblaze.c
  117. target-mips.c
  118. target-nds32.c
  119. target-nios2.c
  120. target-openrisc.c
  121. target-ppc.c
  122. target-riscv.c
  123. target-s390.c
  124. target-sh.c
  125. target-sparc.c
  126. target-x86.c
  127. target-xtensa.c
  128. target.c
  129. target.h
  130. test-dissect.c
  131. test-inspect.c
  132. test-lexing.c
  133. test-linearize.c
  134. test-parsing.c
  135. test-show-type.c
  136. test-sort.c
  137. test-unssa.c
  138. token.h
  139. tokenize.c
  140. unssa.c
  141. utils.c
  142. utils.h
  143. version.c