> An aarch64 implementation of the MontgomeryIntegerPolynomial256.mult() method > and IntegerPolynomial.conditionalAssign(). Since 64-bit multiplication is not > supported on Neon and manually performing this operation with 32-bit limbs is > slower than with GPRs, a hybrid neon/gpr approach is used. Neon instructions > are used to compute intermediate values used in the last two iterations of > the main "loop", while the GPRs compute the first few iterations. At the > method level this improves performance by ~9% and at the API level roughly 5%. > > > > --------- > - [x] I confirm that I make this contribution in accordance with the [OpenJDK > Interim AI Policy](https://openjdk.org/legal/ai).
Ferenc Rakoczi has updated the pull request incrementally with one additional commit since the last revision: Unite x86 and aarch64 for UseIntPolyIntrinsics for AOTCache. ------------- Changes: - all: https://git.openjdk.org/jdk/pull/30941/files - new: https://git.openjdk.org/jdk/pull/30941/files/2c244066..5b495b00 Webrevs: - full: https://webrevs.openjdk.org/?repo=jdk&pr=30941&range=10 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=30941&range=09-10 Stats: 3 lines in 1 file changed: 1 ins; 2 del; 0 mod Patch: https://git.openjdk.org/jdk/pull/30941.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/30941/head:pull/30941 PR: https://git.openjdk.org/jdk/pull/30941
