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gh-9595-luajit-fixes.md

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bugfix/luajit

Backported patches from the vanilla LuaJIT trunk (gh-9595). The following issues were fixed as part of this activity:

  • No side traces are recorded now after disabling the JIT via jit.off().
  • Fixed handling of instable boolean types in TDUP load forwarding.
  • Fixed a crash during the restoration of the sunk TNEW with a huge array part.
  • Fixed stack-buffer-overflow for string.format() with %g modifier and length modifier.
  • Fixed recording of setmetatable() with nil as the second argument.
  • Fixed recording of select() in case with negative first argument.
  • Fixed use-def analysis for child upvalues.
  • Added the cc file type for saving bytecode.
  • Fixed C file generation in jit.bcsave.
  • Fixed trace error handling during trace stitching.
  • Fixed recording of the __concat metamethod for vararg or protected frames.
  • Fixed recording of a side trace returning to a lower frame with a maximum possible frame size.
  • Fixed debug.setmetatable() and lua_setmetatable() with enabled jit.dump().
  • Fixed recording of side traces with a down-recursion.