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8340587: Optimize StackMapGenerator$Frame::checkAssignableTo

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Reviewed-by: liach
This commit is contained in:
Shaojin Wen 2024-09-25 02:32:29 +00:00
parent 9bcc7b66de
commit 2d38af61e4
1 changed files with 7 additions and 3 deletions
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10
src/java.base/share/classes/jdk/internal/classfile/impl/StackMapGenerator.java
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@ -1095,11 +1095,15 @@ public final class StackMapGenerator {
}
void checkAssignableTo(Frame target) {
int localsSize = this.localsSize;
int stackSize = this.stackSize;
if (target.flags == -1) {
target.locals = locals == null ? null : Arrays.copyOf(locals, localsSize);
target.locals = locals == null ? null : locals.clone();
target.localsSize = localsSize;
target.stack = stack == null ? null : Arrays.copyOf(stack, stackSize);
target.stackSize = stackSize;
if (stackSize > 0) {
target.stack = stack.clone();
target.stackSize = stackSize;
}
target.flags = flags;
target.dirty = true;
} else {