Provide secondary entry points for `EntryDiscriminator` call info field
in YAML profile.
Increases BAT section size to:
- large binary: 39655300 bytes (1.03x the original),
- medium binary: 3834328 bytes (0.65x),
- small binary: 924 bytes (0.64x).
Depends on: https://github.com/llvm/llvm-project/pull/76911
Test Plan:
- Updated bolt-address-translation{,-yaml}.test
- Added openssl test: https://github.com/rafaelauler/bolt-tests/pull/30
Reviewers: dcci, rafaelauler, maksfb, ayermolo
Reviewed By: rafaelauler
Pull Request: https://github.com/llvm/llvm-project/pull/86218
YAML profile reader checks the number of basic blocks in regular,
no-stale-matching mode. Add it to BAT.
This increases the size of BAT section to:
- large binary: 39583080 bytes (1.02x of the original),
- medium binary: 3816492 bytes (0.64x),
- small binary: 920 bytes (0.64x, no change due to alignment).
Test Plan: Updated bolt-address-translation-yaml.test
Reviewers: rafaelauler, ayermolo, maksfb, dcci
Reviewed By: rafaelauler
Pull Request: https://github.com/llvm/llvm-project/pull/86045
Add input basic block index to BAT metadata. This addresses the case
where some basic blocks are eliminated, and output index is not equal
to the input block index. These indices are used in non-stale-matching
mode.
Increases BAT section size to:
- large binary: 39521512 bytes (1.02x original),
- medium binary: 3799988 bytes (0.64x),
- small binary: 920 bytes (0.64x).
Test Plan:
Updated bolt-address-translation{,-yaml}.test
Pull Request: https://github.com/llvm/llvm-project/pull/86044
Relax assumptions that YAML output is not supported in BAT mode.
Set up basic infrastructure for emitting YAML for functions not covered
by BAT, such as from `.bolt.org.text` section (code identical to input binary
sans external refs), or non-rewritten functions in non-relocation mode (where
the function stays in the same section but BAT mapping is not emitted).
This diff only produces YAML profile for non-BAT functions (skipped,
non-simple). YAML profile for BAT functions is added in follow-up diffs:
- https://github.com/llvm/llvm-project/pull/76911 emits YAML profile with
internal control flow information only (branch profile),
- https://github.com/llvm/llvm-project/pull/76896 adds cross-function profile
(calls profile).
Test Plan: Added bolt/test/X86/bolt-address-translation-yaml.test
Reviewers: ayermolo, dcci, maksfb, rafaelauler
Reviewed By: rafaelauler
Pull Request: https://github.com/llvm/llvm-project/pull/76910
Encode BRANCHENTRY bits as bitmask for deduplicated entries.
Reduces BAT section size:
- large binary: to 11834216 bytes (0.31x original),
- medium binary: to 1565584 bytes (0.26x original),
- small binary: to 336 bytes (0.23x original).
Test Plan: Updated bolt/test/X86/bolt-address-translation.test
Make output function addresses be delta-encoded wrt last offset in the
previous function. This reduces the deltas in function start addresses.
Test Plan:
Reduces BAT section size to:
- large binary: 12218860 bytes (0.32x original),
- medium binary: 1606580 bytes (0.27x original),
- small binary: 404 bytes (0.28x original),
Reviewers: rafaelauler
Reviewed By: rafaelauler
Pull Request: https://github.com/llvm/llvm-project/pull/76904
Reduces BAT section size:
- large binary: to 12283500 bytes (0.32x original size),
- medium binary: to 1616020 bytes (0.27x original size),
- small binary: to 404 bytes (0.28x original size).
Test Plan: Updated bolt/test/X86/bolt-address-translation.test
Further reduce the size of BAT section:
- large binary: to 12716312 bytes (0.33x original),
- medium binary: to 1649472 bytes (0.28x original),
- small binary: to 428 bytes (0.30x original).
Test Plan: Updated bolt/test/X86/bolt-address-translation.test
This change further reduces the size of BAT:
- large binary: to 13073904 bytes (0.34x original),
- medium binary: to 1703116 bytes (0.29x original),
- small binary: to 436 bytes (0.30x original).
Test Plan: Updated bolt/test/X86/bolt-address-translation.test
