sdk/runtime at 577bb2dc7ea6dd830fa2be116fb1d6a6b29709fa - sdk

Files

T

Vyacheslav Egorov 2c97d724df [VM, JIT] Lower CloneContext into AllocateUninitializedContext.

CloneContext is implemented as a runtime call so it is considerably slower
than AllocateContext which leads to performance issues in loops that capture
iteration variables in for loops.

Lowering CloneContext into AllocateUninitializedContext and a sequence of
explicit load&store instructions both improves the performance by avoiding
the runtime call and also makes CloneContext semantics exposed to store-load
forwarding and allocation sinking.

PutIfAbsent benchmark from issue #31113 is improved by 5x, while 
ForInGeneratedLoop benchmark is improved by 8x.

Bug: https://github.com/dart-lang/sdk/issues/31113
Change-Id: I03fdede75f1a85fda92487aa8f9307ce06f23903
Reviewed-on: https://dart-review.googlesource.com/16280
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>

2017-10-25 11:09:29 +00:00

bin

[VM] Make "Hello, World!" run in strong mode (through DFE).

2017-10-24 11:43:48 +00:00

include

[kernel] Always disable reified generic functions in the Kernel FE.

2017-10-24 15:21:28 +00:00

lib

[VM] Make "Hello, World!" run in strong mode (through DFE).

2017-10-24 11:43:48 +00:00

observatory

Reapply "[vm] Add a simple compactor."