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skia / external / github.com / lua / lua / 9b37a4695ebf50b37b5b4fb279ae948f23b5b6a0
commit9b37a4695ebf50b37b5b4fb279ae948f23b5b6a0[log] [tgz]
authorRoberto Ierusalimschy <roberto@inf.puc-rio.br>Tue Mar 19 10:53:18 2019 -0300
committerRoberto Ierusalimschy <roberto@inf.puc-rio.br>Tue Mar 19 10:53:18 2019 -0300
tree2a6b0f6c1c2eb962bb383175eb0a67ea81a4564d
parent1e0c73d5b643707335b06abd2546a83d9439d14c [diff]
New semantics for the integer 'for' loop

The numerical 'for' loop over integers now uses a precomputed counter
to control its number of iteractions. This change eliminates several
weird cases caused by overflows (wrap-around) in the control variable.
(It also ensures that every integer loop halts.)

Also, the special opcodes for the usual case of step==1 were removed.
(The new code is already somewhat complex for the usual case,
but efficient.)
10 files changed
tree: 2a6b0f6c1c2eb962bb383175eb0a67ea81a4564d
  1. manual/
  2. testes/
  3. all
  4. bugs
  5. lapi.c
  6. lapi.h
  7. lauxlib.c
  8. lauxlib.h
  9. lbaselib.c
  10. lcode.c
  11. lcode.h
  12. lcorolib.c
  13. lctype.c
  14. lctype.h
  15. ldblib.c
  16. ldebug.c
  17. ldebug.h
  18. ldo.c
  19. ldo.h
  20. ldump.c
  21. lfunc.c
  22. lfunc.h
  23. lgc.c
  24. lgc.h
  25. linit.c
  26. liolib.c
  27. ljumptab.h
  28. llex.c
  29. llex.h
  30. llimits.h
  31. lmathlib.c
  32. lmem.c
  33. lmem.h
  34. loadlib.c
  35. lobject.c
  36. lobject.h
  37. lopcodes.c
  38. lopcodes.h
  39. lopnames.h
  40. loslib.c
  41. lparser.c
  42. lparser.h
  43. lprefix.h
  44. lstate.c
  45. lstate.h
  46. lstring.c
  47. lstring.h
  48. lstrlib.c
  49. ltable.c
  50. ltable.h
  51. ltablib.c
  52. ltests.c
  53. ltests.h
  54. ltm.c
  55. ltm.h
  56. lua.c
  57. lua.h
  58. luaconf.h
  59. lualib.h
  60. lundump.c
  61. lundump.h
  62. lutf8lib.c
  63. lvm.c
  64. lvm.h
  65. lzio.c
  66. lzio.h
  67. makefile