A small optimization to simplify the implementation logic of
LambdaForm$BasicType#basicType method can reduce the call stack and reduce the
overall bytecode size.
Below is the compiler log
* baseline
@ 1 java.lang.invoke.LambdaForm$BasicType::basicType (8 bytes) inline
@ 1 sun.invoke.util.Wrapper::basicTypeChar (18 bytes) inline
@ 1 java.lang.Class::isPrimitive (0 bytes) intrinsic
@ 11 sun.invoke.util.Wrapper::forPrimitiveType (122 bytes) failed to
inline: callee is too large
@ 14 sun.invoke.util.Wrapper::basicTypeChar (5 bytes) inline
* current
java.lang.invoke.LambdaForm$BasicType::basicType (59 bytes) failed to inline:
callee is too large
-------------
Commit messages:
- from @liach's suggestion
- optimize LambdaForm#basicType(Class)
Changes: https://git.openjdk.org/jdk/pull/20759/files
Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=20759&range=00
Issue: https://bugs.openjdk.org/browse/JDK-8339241
Stats: 6 lines in 1 file changed: 5 ins; 0 del; 1 mod
Patch: https://git.openjdk.org/jdk/pull/20759.diff
Fetch: git fetch https://git.openjdk.org/jdk.git pull/20759/head:pull/20759
PR: https://git.openjdk.org/jdk/pull/20759
