RFR: 8341510: Optimize StackMapGenerator::processFieldInstructions

[Chen Liang]

On Fri, 4 Oct 2024 02:47:12 GMT, Shaojin Wen <swen at openjdk.org> wrote:

> A small optimization to reduce CodeSize, codeSize reduced from 164 to 140.
> 
> 1. Use local currentFrame to avoid multiple getfields
> 2. Use decStack instead of popStack to reduce array access in popStack
> 3. Call Util.fieldTypeSymbol to pass in type instead of nameAndType

src/java.base/share/classes/jdk/internal/classfile/impl/Util.java line 234:

> 232:     }
> 233: 
> 234:     public static MethodTypeDesc methodTypeSymbol(NameAndTypeEntry nat) {

Can you remove this method too, since we have a Utf8Entry version?

-------------

PR Review Comment: https://git.openjdk.org/jdk/pull/21345#discussion_r1787156100