From 71bf7b43380eb445973f32a7f789d9670f8cc97d Mon Sep 17 00:00:00 2001
From: Aart Bik <ajcbik@google.com>
Date: Wed, 16 Nov 2016 10:17:46 -0800
Subject: Optimizations around escape analysis. With tests.

Details:
(1) added new intrinsics
(2) implemented optimizations
      more !can be null information
      more null check removals
      replace return-this uses with incoming parameter
      remove dead StringBuffer/Builder calls (with escape analysis)
(3) Fixed exposed bug in CanBeMoved()

Performance gain:
This improves CafeineString by about 360%
(removes null check from first loop, eliminates second loop completely)

Test: test-art-host

Change-Id: Iaf16a1b9cab6a7386f43d71c6b51dd59600e81c1
---
 compiler/optimizing/intrinsics_mips.cc | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'compiler/optimizing/intrinsics_mips.cc')

diff --git a/compiler/optimizing/intrinsics_mips.cc b/compiler/optimizing/intrinsics_mips.cc
index 7c81588cda..9b5d7a02dd 100644
--- a/compiler/optimizing/intrinsics_mips.cc
+++ b/compiler/optimizing/intrinsics_mips.cc
@@ -2497,6 +2497,12 @@ UNIMPLEMENTED_INTRINSIC(MIPS, MathTanh)
 
 UNIMPLEMENTED_INTRINSIC(MIPS, StringStringIndexOf);
 UNIMPLEMENTED_INTRINSIC(MIPS, StringStringIndexOfAfter);
+UNIMPLEMENTED_INTRINSIC(MIPS, StringBufferAppend);
+UNIMPLEMENTED_INTRINSIC(MIPS, StringBufferLength);
+UNIMPLEMENTED_INTRINSIC(MIPS, StringBufferToString);
+UNIMPLEMENTED_INTRINSIC(MIPS, StringBuilderAppend);
+UNIMPLEMENTED_INTRINSIC(MIPS, StringBuilderLength);
+UNIMPLEMENTED_INTRINSIC(MIPS, StringBuilderToString);
 
 // 1.8.
 UNIMPLEMENTED_INTRINSIC(MIPS, UnsafeGetAndAddInt)
-- 
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