JitArm64: Reimplement Force25BitPrecision #11181
Merged
+57
−32
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Outdated suggestions cannot be applied.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.
The previous implementation of Force25BitPrecision was essentially a translation of the x86-64 implementation. It worked, but we can make a more efficient implementation by using an AArch64 instruction I don't believe x86-64 has an equivalent of: URSHR. The latency is the same as before, but the instruction count and register count are both reduced.