81869cc06c19d5e549d369ff86d581efb87cf2b8 - LeafOS-Project/android_art

commit	81869cc06c19d5e549d369ff86d581efb87cf2b8	[log] [tgz]
author	Santiago Aboy Solanes <solanes@google.com>	Thu Apr 06 16:13:44 2023 +0100
committer	Santiago Aboy Solanes <solanes@google.com>	Fri Apr 14 13:52:59 2023 +0000
tree	2551a10e80f17b713e326a3f73f438ff4bbf6909
parent	77bbd1d06fc0d074eb53f88005c4c549351963ec [diff]

Coalesce Return/ReturnVoid instructions

We do this to avoid generating the exit frame code several times.

We don't create new Return/ReturnVoid instructions after the
inliner, and CodeSinking looks like a logical place to add this
optimization.

Locally, speed-compiling in Pixel 5:
 * system server: -516.05KB (1.1%)
 * SystemUIGoogle: -216.50KB (0.8%)
 * AGSA: -3021.91KB (0.93%)

Bug: 203237752
Bug: 188926997
Bug: 194133637
Test: art/test/testrunner/testrunner.py --host --64 --optimizing -b
Change-Id: Ib149382462efac82a0bbc114cbdbc773e1a5228c

compiler/optimizing/code_sinking.cc[diff]
compiler/optimizing/code_sinking.h[diff]
test/2262-checker-return-sinking/expected-stderr.txt[Added - diff]
test/2262-checker-return-sinking/expected-stdout.txt[Added - diff]
test/2262-checker-return-sinking/info.txt[Added - diff]
test/2262-checker-return-sinking/src/Main.java[Added - diff]

6 files changed