On Mon, 30 Sep 2024 21:14:50 GMT, Shaojin Wen <[email protected]> wrote:
>> Some DirectCodeBuilder related optimizations to improve startup and running
>> performance:
>> 1. Merge calls, merge writeU1 and writeU2 into writeU3
>> 2. Merge calls, merge writeU1 and writeIndex operations
>> 3. Directly use writeU1 instead of writeBytecode
>> 4. Rewrite the implementation of load and store
>
> Shaojin Wen has updated the pull request incrementally with two additional
> commits since the last revision:
>
> - optimize MethodTypeDescImpl::descriptorString
> - Remove redundant requireNonNull
src/java.base/share/classes/jdk/internal/classfile/impl/SplitConstantPool.java
line 103:
> 101: @Override
> 102: public <T extends PoolEntry> T entryByIndex(int index, Class<T> cls)
> {
> 103: Objects.requireNonNull(cls);
I think this was added because we want the NPE to be thrown before IAE if index
is 0 but cls is null. It might be fine one way or another.
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PR Review Comment: https://git.openjdk.org/jdk/pull/21243#discussion_r1781881645
