tree 5c45f4ae53aab3f530284a97dc328b4e38ce7c94
parent 9c11b56296b8cffc94b0b854ce6cff7e014b8d57
author Ian Rogers <irogers@google.com> 1380165974 -0700
committer Ian Rogers <irogers@google.com> 1380254905 -0700

Introduce Signature type to avoid string comparisons.

Method resolution currently creates strings to then compare with strings formed
from methods in other dex files. The temporary strings are purely created for
the sake of comparisons. This change creates a new Signature type that
represents a method signature but not as a string. This type supports
comparisons and so can be used when searching for methods in resolution.

With this change malloc is no longer the hottest method during dex2oat (now its
memset) and allocations during verification have been reduced. The verifier is
commonly what is populating the dex cache for methods and fields not declared
in the dex file itself.

Change-Id: I5ef0542823fbcae868aaa4a2457e8da7df0e9dae