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llvm / scudo / 82fe97e0578ebd0799761c3914753cd52692da1e
commit82fe97e0578ebd0799761c3914753cd52692da1e[log] [tgz]
authorPeter Collingbourne <peter@pcc.me.uk>Wed Apr 21 19:13:36 2021 -0700
committerCopybara-Service <copybara-worker@google.com>Sun May 09 19:08:58 2021 -0700
treea76196e4b24ce60c47a21acb2d32a3402e06c2f2
parentd790cf4eae49b6e2c8ab9be448166c4126245374 [diff]
scudo: Obtain tag from pointer instead of loading it from memory. NFCI.

Since we already have a tagged pointer available to us, we can just
extract the tag from it and avoid an LDG instruction.

Differential Revision: https://reviews.llvm.org/D101014

GitOrigin-RevId: e4fa0b307f7fe2c3db7442c719f643287f08eed4
1 file changed
tree: a76196e4b24ce60c47a21acb2d32a3402e06c2f2
  1. benchmarks/
  2. fuzz/
  3. include/
  4. tests/
  5. tools/
  6. allocator_config.h
  7. atomic_helpers.h
  8. bytemap.h
  9. checksum.cpp
  10. checksum.h
  11. chunk.h
  12. combined.h
  13. common.cpp
  14. common.h
  15. crc32_hw.cpp
  16. flags.cpp
  17. flags.h
  18. flags.inc
  19. flags_parser.cpp
  20. flags_parser.h
  21. fuchsia.cpp
  22. fuchsia.h
  23. internal_defs.h
  24. LICENSE.TXT
  25. linux.cpp
  26. linux.h
  27. list.h
  28. local_cache.h
  29. memtag.h
  30. mutex.h
  31. options.h
  32. platform.h
  33. primary32.h
  34. primary64.h
  35. quarantine.h
  36. release.cpp
  37. release.h
  38. report.cpp
  39. report.h
  40. secondary.h
  41. size_class_map.h
  42. stack_depot.h
  43. stats.h
  44. string_utils.cpp
  45. string_utils.h
  46. tsd.h
  47. tsd_exclusive.h
  48. tsd_shared.h
  49. vector.h
  50. wrappers_c.cpp
  51. wrappers_c.h
  52. wrappers_c.inc
  53. wrappers_c_bionic.cpp
  54. wrappers_c_checks.h
  55. wrappers_cpp.cpp