jit: Implement register allocation #418
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Implement the register allocator with linear-scan register allocation. The "reg_table" is removed and integrated to the "host_reg" for convenience of accessing the vm register by the "reg_idx". The performance comparsion is shown below: * x86-64 | Metric | Original | w/ reg-alloc | SpeedUp | |-----------+----------------+----------------+---------| | dhrystone | 14060 DMIPS | 15225 DMIPS | +8.29% | | coremark | 3874 iters/s | 3828 iters/s | -1.19% | | aes | 0.0297 s | 0.0323 s | -8.75% | | nqueens | 2.16 s | 2.05 s | +5.09% | | stream | 29.6 s | 27.6 s | +6.76% |
jserv
reviewed
Apr 26, 2024
jserv
reviewed
Apr 26, 2024
jserv
reviewed
Apr 26, 2024
jserv
requested changes
Apr 26, 2024
Is it better to use |
Yes, to avoid unintended symbol conflicts, let's stick to the requested naming scheme across compilation units. |
jserv
reviewed
Apr 26, 2024
qwe661234
reviewed
Apr 27, 2024
jserv
changed the title
jserv
reviewed
Apr 29, 2024
jserv
reviewed
Apr 29, 2024
|
Thank @vacantron for contributing! |
vestata
pushed a commit
to vestata/rv32emu
that referenced
this pull request
Jan 24, 2025
This commit implements the register allocator using linear-scan register allocation. The "reg_table" has been removed and integrated into the "host_reg" for easier access to the VM register by the "reg_idx". The performance comparison is shown below: (x86-64) | Metric | Original | w/ reg-alloc | SpeedUp | |-----------+----------------+----------------+---------| | dhrystone | 14060 DMIPS | 15225 DMIPS | +8.29% | | coremark | 3874 iters/s | 3828 iters/s | -1.19% | | aes | 0.0297 s | 0.0323 s | -8.75% | | nqueens | 2.16 s | 2.05 s | +5.09% | | stream | 29.6 s | 27.6 s | +6.76% |
# for free
to join this conversation on GitHub.
Already have an account?
# to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Implement the register allocator with linear-scan register allocation. The
reg_tableis removed and integrated to thehost_regfor convenience of accessing the vm register by thereg_idx.The performance comparsion is shown below: