On Tue, 14 Mar 2023 13:59:48 GMT, Matias Saavedra Silva <matsa...@openjdk.org> wrote:
>> The current structure used to store the resolution information for >> invokedynamic, ConstantPoolCacheEntry, is difficult to interpret due to its >> ambigious fields f1 and f2. This structure can hold information for fields, >> methods, and invokedynamics and each of its fields can hold different types >> of values depending on the entry. >> >> This enhancement proposes a new structure to exclusively contain >> invokedynamic information in a manner that is easy to interpret and easy to >> extend. Resolved invokedynamic entries will be stored in an array in the >> constant pool cache and the operand of the invokedynamic bytecode will be >> rewritten to be the index into this array. >> >> Any areas that previously accessed invokedynamic data from >> ConstantPoolCacheEntry will be replaced with accesses to this new array and >> structure. Verified with tier1-9 tests. >> >> The PPC was provided by @reinrich and the RISCV port was provided by >> @DingliZhang and @zifeihan. >> >> This change supports the following platforms: x86, aarch64, PPC, and RISCV > > Matias Saavedra Silva has updated the pull request with a new target base due > to a merge or a rebase. The incremental webrev excludes the unrelated changes > brought in by the merge/rebase. The pull request contains five additional > commits since the last revision: > > - Typo in comment > - Merge branch 'master' into resolvedIndyEntry_8301995 > - Interpreter optimization and comments > - PPC and RISCV port > - 8301995: Move invokedynamic resolution information out of the cpCache src/hotspot/cpu/aarch64/interp_masm_aarch64.cpp line 1843: > 1841: ldr(cache, Address(rcpool, > in_bytes(ConstantPoolCache::invokedynamic_entries_offset()))); > 1842: // Scale the index to be the entry index * > sizeof(ResolvedInvokeDynamicInfo) > 1843: mov(tmp, sizeof(ResolvedIndyEntry)); The tmp register is not used here, is it redundant? ------------- PR: https://git.openjdk.org/jdk/pull/12778
