From cac5a7e871f1f346b317894359ad06fa7bd67fba Mon Sep 17 00:00:00 2001 From: Vladimir Marko Date: Mon, 22 Feb 2016 10:39:50 +0000 Subject: Optimizing: Improve const-string code generation. For strings in the boot image, use either direct pointers or pc-relative addresses. For other strings, use PC-relative access to the dex cache arrays for AOT and direct address of the string's dex cache slot for JIT. For aosp_flounder-userdebug: - 32-bit boot.oat: -692KiB (-0.9%) - 64-bit boot.oat: -948KiB (-1.1%) - 32-bit dalvik cache total: -900KiB (-0.9%) - 64-bit dalvik cache total: -3672KiB (-1.5%) (contains more files than the 32-bit dalvik cache) For aosp_flounder-userdebug forced to compile PIC: - 32-bit boot.oat: -380KiB (-0.5%) - 64-bit boot.oat: -928KiB (-1.0%) - 32-bit dalvik cache total: -468KiB (-0.4%) - 64-bit dalvik cache total: -1928KiB (-0.8%) (contains more files than the 32-bit dalvik cache) Bug: 26884697 Change-Id: Iec7266ce67e6fedc107be78fab2e742a8dab2696 --- runtime/class_linker.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'runtime/class_linker.h') diff --git a/runtime/class_linker.h b/runtime/class_linker.h index 886f586704..b4b7f34967 100644 --- a/runtime/class_linker.h +++ b/runtime/class_linker.h @@ -247,6 +247,12 @@ class ClassLinker { Handle dex_cache) SHARED_REQUIRES(Locks::mutator_lock_); + // Find a String with the given index from the DexFile, storing the + // result in the DexCache if found. Return null if not found. + mirror::String* LookupString(const DexFile& dex_file, uint32_t string_idx, + Handle dex_cache) + SHARED_REQUIRES(Locks::mutator_lock_); + // Resolve a Type with the given index from the DexFile, storing the // result in the DexCache. The referrer is used to identity the // target DexCache and ClassLoader to use for resolution. -- cgit v1.2.3-59-g8ed1b