> Summary of changes: > - Intrinsify Math.round(float) and Math.round(double) APIs. > - Extend auto-vectorizer to infer vector operations on encountering scalar IR > nodes for above intrinsics. > - Test creation using new IR testing framework. > > Following are the performance number of a JMH micro included with the patch > > Test System: Intel(R) Xeon(R) Platinum 8380 CPU @ 2.30GHz (Icelake Server) > > | | BASELINE AVX2 | WithOpt AVX2 | Gain (opt/baseline) | Baseline AVX3 | > Withopt AVX3 | Gain (opt/baseline) > -- | -- | -- | -- | -- | -- | -- | -- > Benchmark | ARRAYLEN | Score (ops/ms) | Score (ops/ms) | | Score (ops/ms) | > Score (ops/ms) | > FpRoundingBenchmark.test_round_double | 1024 | 518.532 | 1364.066 | > 2.630630318 | 512.908 | 4292.11 | 8.368186887 > FpRoundingBenchmark.test_round_double | 2048 | 270.137 | 830.986 | > 3.076165057 | 273.159 | 2459.116 | 9.002507697 > FpRoundingBenchmark.test_round_float | 1024 | 752.436 | 7780.905 | > 10.34095259 | 752.49 | 9506.694 | 12.63364829 > FpRoundingBenchmark.test_round_float | 2048 | 389.499 | 4113.046 | > 10.55983712 | 389.63 | 4863.673 | 12.48279907 > > Kindly review and share your feedback. > > Best Regards, > Jatin
Jatin Bhateja has updated the pull request incrementally with one additional commit since the last revision: 8279508: Adding a test for scalar intrinsification. ------------- Changes: - all: https://git.openjdk.java.net/jdk/pull/7094/files - new: https://git.openjdk.java.net/jdk/pull/7094/files/0fe01504..575d2935 Webrevs: - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7094&range=01 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7094&range=00-01 Stats: 2 lines in 2 files changed: 2 ins; 0 del; 0 mod Patch: https://git.openjdk.java.net/jdk/pull/7094.diff Fetch: git fetch https://git.openjdk.java.net/jdk pull/7094/head:pull/7094 PR: https://git.openjdk.java.net/jdk/pull/7094
