I am going to add the code in a bit that does the notifications. I tried to pass
down the builder instead of the pass manager. I also tried not to change the
formatting.
rdar://42301529
SingleValueInstruction gets added to the worklist, causing cast assert at https://github.com/apple/swift/blame/master/lib/SILOptimizer/Utils/ConstantFolding.cpp#L1585.
One such example inst is the following (in the tensorflow branch), which produces a SILValue of type
MultipleValueInstructionResult, so ValueBase::getDefiningInstruction() still
returns a valid inst for it, even though that graph_op inst is not a SingleValueInstruction.
```
%94 = graph_op "Fill,i,i"(%73 : $TensorHandle<Int32>, %85 : $TensorHandle<Float>) {T: $Float, index_type: $Int32, __device: "/device:CPU:0"} : $TensorHandle<Float>
```
The same fix has been merged into the tensorflow branch: https://github.com/apple/swift/pull/18272
floating point literals to integers (<rdar://39730762>).
Add test cases for checking the correctness of the diagnostics.
Contains tests specific to x86 and non-x86 architectures.
Correct format:
```
//===--- Name of file - Description ----------------------------*- Lang -*-===//
```
Notes:
* Comment line should be exactly 80 chars.
* Padding: Pad with dashes after "Description" to reach 80 chars.
* "Name of file", "Description" and "Lang" are all optional.
* In case of missing "Lang": drop the "-*-" markers.
* In case of missing space: drop one, two or three dashes before "Name of file".
(libraries now)
It has been generally agreed that we need to do this reorg, and now
seems like the perfect time. Some major pass reorganization is in the
works.
This does not have to be the final word on the matter. The consensus
among those working on the code is that it's much better than what we
had and a better starting point for future bike shedding.
Note that the previous organization was designed to allow separate
analysis and optimization libraries. It turns out this is an
artificial distinction and not an important goal.
