On Tue, 29 Sep 2026 06:37:31 GMT, Quan Anh Mai <[email protected]> wrote:
>> Jatin Bhateja has refreshed the contents of this pull request, and previous >> commits have been removed. The incremental views will show differences >> compared to the previous content of the PR. The pull request contains two >> new commits since the last revision: >> >> - Rename vector_shift_gfni to vector_byte_shift_gfni >> - 8393068: Optimize uniform vector byte shift operations using x86 GFNI >> instruction > > src/hotspot/cpu/x86/c2_MacroAssembler_x86.cpp line 1372: > >> 1370: } >> 1371: >> 1372: void C2_MacroAssembler::vshiftb_gfni(int opcode, XMMRegister dst, >> XMMRegister src, XMMRegister shift, > > Please add mathematical proof to this implementation. Hi @merykitty , I have now added a comment with required details. ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/33113#discussion_r4141369441
