On Mon, 15 Jan 2024 14:27:43 GMT, Emanuel Peter <epe...@openjdk.org> wrote:
>> Jatin Bhateja has updated the pull request with a new target base due to a >> merge or a rebase. The pull request now contains 12 commits: >> >> - Accelerating masked sub-word gathers for AVX2 targets, this gives >> additional 1.5-4x speedups over existing implementation. >> - Merge branch 'master' of http://github.com/openjdk/jdk into JDK-8318650 >> - Removing JDK-8321648 related changes. >> - Refined AVX3 implementation with integral gather. >> - Merge branch 'master' of http://github.com/openjdk/jdk into JDK-8318650 >> - Fix incorrect comment >> - Review comments resolutions. >> - Review comments resolutions. >> - Review comments resolutions. >> - Restricting masked sub-word gather to AVX512 target to align with >> integral gather support. >> - ... and 2 more: https://git.openjdk.org/jdk/compare/518ec971...de47076e > > src/hotspot/cpu/x86/c2_MacroAssembler_x86.cpp line 1900: > >> 1898: vgather8b(elem_ty, xtmp3, base, idx_base, rtmp, vlen_enc); >> 1899: } else { >> 1900: LP64_ONLY(vgather8b_masked(elem_ty, xtmp3, base, idx_base, mask, >> midx, rtmp, vlen_enc)); > > What happens if if not `LP64_ONLY`? 32bit skip over check is part of match_rule_supported_vector, https://github.com/openjdk/jdk/pull/16354/files#diff-d6a3624f0f0af65a98a47378a5c146eed5016ca09b4de1acd0a3acc823242e82R1921 ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/16354#discussion_r1452969364
