Implement type checks for leaf IL instructions using the instruction tag
instead of per-type virtual functions, which scale quadratically with the number of IL instructions.
out/ReleaseX64/exe.stripped/gen_snapshot 7601248 -> 6890640 (-9.3%)
TEST=ci
Change-Id: I3d9c84c67e6ab0f3020ebb02068451e6f1c150f7
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/388043
Reviewed-by: Alexander Aprelev <aam@google.com>
Commit-Queue: Ryan Macnak <rmacnak@google.com>
Renames `ReturnInstr` to `DartReturnInstr`, and introduces a new
`ReturnBaseInstr` to be the common parent of `DartReturnInstr` and
`NativeReturnInstr`. (Before this CL, `NativeReturnInstr` was a
subtype of `ReturnInstr`.)
In a follow up CL, the `NativeReturnInstr` will get up to two inputs.
https://dart-review.googlesource.com/c/sdk/+/354226
Therefore, the `ReturnBaseInstr` does not inherit from `TemplateInstr`
with 1 input, but instead only inherits from `Instruction`.
TEST=SDK build
TEST=*_il_test.dart
Change-Id: I017eb7802ae6c902b64f1cda20edf4a11408dbe1
Cq-Include-Trybots: luci.dart.try:vm-aot-linux-debug-x64-try
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/358904
Reviewed-by: Tess Strickland <sstrickl@google.com>
Commit-Queue: Daco Harkes <dacoharkes@google.com>
If the left-hand side of the store is an allocation and no GC-triggering
instructions have been executed since, it is safe to elide the store barrier.
This gives a 1.4% code size reduction on Flutter Gallery ARM32.
Change-Id: Ib7227d3ef9d798d5e30f238f3f789f9a2e637d6a
Cq-Include-Trybots: luci.dart.try: vm-kernel-optcounter-threshold-linux-release-x64-try,vm-kernel-precomp-linux-debug-x64-try,vm-kernel-precomp-linux-release-simarm-try,vm-kernel-precomp-linux-release-simarm64-try,vm-kernel-precomp-linux-release-x64-try,vm-kernel-precomp-win-release-x64-try
Reviewed-on: https://dart-review.googlesource.com/64687
Commit-Queue: Samir Jindel <sjindel@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Ryan Macnak <rmacnak@google.com>
We add two things:
* --print_instruction_stats makes compiler dump per IL instruction size
breakdown (how many bytes of code were produced from specific instruction
kinds). This was largely implemented by kustermann@ in
https://codereview.chromium.org/2584613002/ and this CL does only few changes
to the original implementation, namely more uniform handling of slow-path code
and puts statistics object into RawInstructions (which has free space due to
alignment) instead of RawCode.
* --print_instructions_sizes_to=symbols.json makes compiler dump per Instruction
object size breakdown into a JSON file. This JSON file can later be processed
with pkg/vm/tool/run_binary_size_analysis.dart script to produce interactive
binary size diagram similar to runtime/third_party/binary_size tool.
Change-Id: Ied4965b9a0a91b3025eefbe981ecd47cdcf782d6
Reviewed-on: https://dart-review.googlesource.com/50501
Commit-Queue: Vyacheslav Egorov <vegorov@google.com>
Reviewed-by: Alexander Markov <alexmarkov@google.com>
Reviewed-by: Martin Kustermann <kustermann@google.com>
Ryan Macnak