Eric Milles created GROOVY-10031:
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Summary: Compiler writes multianewarray instruction for all
non-initializer array allocations
Key: GROOVY-10031
URL: https://issues.apache.org/jira/browse/GROOVY-10031
Project: Groovy
Issue Type: Improvement
Components: bytecode
Reporter: Eric Milles
Assignee: Eric Milles
{{AsmClassGenerator#visitArrayExpression}} chooses the
[multianewarray|https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-6.html#jvms-6.5.multianewarray]
instruction for all size-based array allocations. The
[anewarray|https://docs.oracle.com/javase/specs/jvms/se8/html/jvms-6.html#jvms-6.5.anewarray]
instruction is available for one-dimensional arrays.
{code:groovy}
String[] strings = new String[0]
// n iconst_0
// n+1 multianewarray java.lang.String[]
// vs.
// n iconst_0
// n+1 anewarray java.lang.String
{code}
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