sdk/runtime at c913b01ec0068eafd8c1ce5e5bbd71ae1801896a - sdk

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T

Alexander Markov 0380d3a90e [vm/compiler] Do not use specualtive unboxing for Phi instructions in AOT

When inserting Unbox instructions in SelectRepresentations pass, their
speculative mode depends on the instruction which uses corresponding
value. Phi instructions were using default kGuardInputs mode, which may
cause insertion of speculative Unbox instructions in AOT mode.
Such Unbox instructions may need deoptimization if type of an argument
changes during optimizations. Generating code for such Unbox
instructions causes assertion failure (in debug mode), or crash in
release mode.

The fix is to change speculative mode of Phi instructions in AOT, so
they won't cause speculative Unbox instructions.

Fixes https://github.com/dart-lang/sdk/issues/39747

Change-Id: Ic9c9957875fd775fe1c02f3666829f26dad64937
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/130063
Reviewed-by: Samir Jindel <sjindel@google.com>
Commit-Queue: Alexander Markov <alexmarkov@google.com>

2020-01-03 21:15:19 +00:00

bin

[VM/Runtime] Propagate error from Loader::InitForSnapshot instead of asserting

2020-01-02 23:00:36 +00:00

docs

[vm/tfa] Use pragma to pass type arguments to exact return types.

2020-01-03 14:08:19 +00:00

include

[VM/runtime] Remove support for loading URLs through service isolate

2019-12-27 17:30:05 +00:00

lib

[vm, timeline] Following switch from Duration events to Begin-End event pairs, avoid separate native call transitions to query the monotonic and thread clocks.