commit e585964df42e9fd2fab6f209810cb03e1b261ab1
author Nicolas Geoffray <ngeoffray@google.com> Fri Jan 08 18:09:36 2021 +0000
committer Nicolas Geoffray <ngeoffray@google.com> Mon Jan 25 09:22:46 2021 +0000
tree 35edc923e92389e4fcb0518289aacb72339f1247
parent 1bcd7cd823826e95827ea2d666291f56fcccb368

When entering nterp, take a fast path for instance calls with 1 argument.

Such methods only take 'this' as an argument and we don't need to fetch
the shorty.

We can make this optimization when doing nterp->compiled as a follow-up,
by checking that the next instruction after the invoke is not
move-result(-wide).

Test: test.py
Bug: 112676029
Change-Id: Ibc7b4d4ca1c636f4ad6572484e0990ccdbd63293

tools/cpp-define-generator/art_method.def

diff --git a/tools/cpp-define-generator/art_method.def b/tools/cpp-define-generator/art_method.def
index 7b5606f..c2e18b1 100644
--- a/tools/cpp-define-generator/art_method.def
+++ b/tools/cpp-define-generator/art_method.def
@@ -25,6 +25,8 @@
            art::kAccStatic)
 ASM_DEFINE(ART_METHOD_IMT_MASK,
            art::ImTable::kSizeTruncToPowerOfTwo - 1)
+ASM_DEFINE(ART_METHOD_IS_STATIC_FLAG_BIT,
+           art::MostSignificantBit(art::kAccStatic))
 ASM_DEFINE(ART_METHOD_DECLARING_CLASS_OFFSET,
            art::ArtMethod::DeclaringClassOffset().Int32Value())
 ASM_DEFINE(ART_METHOD_JNI_OFFSET_32,