On Wed, 30 Apr 2025 22:26:30 GMT, Chen Liang <li...@openjdk.org> wrote:
>> In offline discussion, we noted that the documentation on this annotation >> does not recommend minimizing the intrinsified section and moving whatever >> can be done in Java to Java; thus I prepared this documentation update, to >> shrink a "TLDR" essay to something concise for readers, such as pointing to >> that list at `vmIntrinsics.hpp` instead of "a list". > > Chen Liang 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 eight additional commits since > the last revision: > > - Move intrinsic to be a subsection; just one most common function of the > annotation > - Merge branch 'master' of https://github.com/openjdk/jdk into > doc/intrinsic-candidate > - Merge branch 'master' of https://github.com/openjdk/jdk into > doc/intrinsic-candidate > - Update > src/java.base/share/classes/jdk/internal/vm/annotation/IntrinsicCandidate.java > > Co-authored-by: Raffaello Giulietti <raffaello.giulie...@oracle.com> > - Shorter first sentence > - Updates, thanks to John > - Refine validation and defensive copying > - 8355223: Improve documentation on @IntrinsicCandidate src/java.base/share/classes/jdk/internal/vm/annotation/IntrinsicCandidate.java line 50: > 48: * For example, the bytecodes of a candidate method may be executed by > lower > 49: * compilation tiers of VM execution, while higher compilation tiers may > replace > 50: * the bytecodes with specialized assembly code and/or compiler IR. > Therefore, > while higher compilation tiers may replace the bytecodes with specialized > assembly code and/or compiler IR Is there ever a case, where for a `@IntrinsicCandidate` method, the runtime will choose to execute the instrinsic for that method for a certain duration and then at a later point in time replace the intrinsic with compiler generated code? In other words, once the runtime executes the intrinsic implementation for a `@IntrinsicCandidate` method, will the method's implementation be switched to anything else during the lifetime of an application? ------------- PR Review Comment: https://git.openjdk.org/jdk/pull/24777#discussion_r2097016882
