7 Commits

Author SHA1 Message Date
River Riddle
7a7dcc171d Add support for generating reproducers on pass crash and failure.
This cl adds support for generating a .mlir file containing a reproducer for crashes and failures that happen during pass execution. The reproducer contains a comment detailing the configuration of the pass manager(e.g. the textual description of the pass pipeline that the pass manager was executing), along with the original input module.

Example Output:

// configuration: -pass-pipeline='func(cse, canonicalize), inline'
// note: verifyPasses=false

module {
  ...
}

PiperOrigin-RevId: 274088134
2019-10-10 19:36:54 -07:00
MLIR Team
ae6946ec11 Add ::printAsTextualPipeline to Pass and OpPassManager.
Allow printing out pipelines in a format that is as close as possible to the
textual pass pipeline format. Individual passes can override the print function
in order to format any options that may have been used to construct that pass.

PiperOrigin-RevId: 273813627
2019-10-09 13:49:17 -07:00
River Riddle
395ce4b41b NFC: Fully qualify use of std::string.
PiperOrigin-RevId: 273668957
2019-10-08 21:16:20 -07:00
MLIR Team
7446151236 Add Instance Specific Pass Options.
This allows individual passes to define options structs and for these options to be parsed per instance of the pass while building the pass pipeline from the command line provided textual specification.

The user can specify these per-instance pipeline options like so:
```
struct MyPassOptions : public PassOptions<MyPassOptions> {
  Option<int> exampleOption{*this, "flag-name", llvm:🆑:desc("...")};
  List<int> exampleListOption{*this, "list-flag-name", llvm:🆑:desc("...")};
};

static PassRegistration<MyPass, MyPassOptions> pass("my-pass", "description");
```

PiperOrigin-RevId: 273650140
2019-10-08 18:23:43 -07:00
River Riddle
d780bdef20 Publicly expose the functionality to parse a textual pass pipeline.
This allows for users other than those on the command line to apply a textual description of a pipeline to a given pass manager.

PiperOrigin-RevId: 269017028
2019-09-13 17:54:00 -07:00
River Riddle
9274ed66ef Refactor pass pipeline command line parsing to support explicit pipeline strings.
This allows for explicitly specifying the pipeline to add to the pass manager. This includes the nesting structure, as well as the passes/pipelines to run. A textual pipeline string is defined as a series of names, each of which may in itself recursively contain a nested pipeline description. A name is either the name of a registered pass, or pass pipeline, (e.g. "cse") or the name of an operation type (e.g. "func").

For example, the following pipeline:
$ mlir-opt foo.mlir -cse -canonicalize -lower-to-llvm

Could now be specified as:
$ mlir-opt foo.mlir -pass-pipeline='func(cse, canonicalize), lower-to-llvm'

This will allow for running pipelines on nested operations, like say spirv modules. This does not remove any of the current functionality, and in fact can be used in unison. The new option is available via 'pass-pipeline'.

PiperOrigin-RevId: 268954279
2019-09-13 12:10:31 -07:00
River Riddle
120509a6b2 Refactor PassTiming to support nested pipelines.
This is done via a new set of instrumentation hooks runBeforePipeline/runAfterPipeline, that signal the lifetime of a pass pipeline on a specific operation type. These hooks also provide the parent thread of the pipeline, allowing for accurate merging of timers running on different threads.

PiperOrigin-RevId: 267909193
2019-09-08 19:58:13 -07:00