This was just a wrapper around SmallVector that optionally owned the Job pointers
in it. Now that all Jobs are owned by the Compilation, we don't have to worry
about this any more.
No functionality change.
Swift SVN r29668
Previously, we would process all of a job's dependencies separately before
even scheduling it, and we wouldn't interleave dependencies from different
jobs. This meant (a) more overhead than necessary, and more importantly
(b) -embed-bitcode builds weren't being parallelized.
rdar://problem/21129029
Swift SVN r29665
...not if it's newer than its output .o file. This handles cases where the
object file is generated too quickly (rdar://problem/19404140) or when you
revert to a previous version of the file, mtime intact (rdar://problem/19720146).
There's a lot of test churn here; the only real new test is the backwards
mtime update in one-way.swift.
Swift SVN r29584
If certain command-line arguments change, the results of the last
compilation aren't reusable, i.e. we can't do an incremental build.
Do a full rebuild when we detect that this happens.
(Which command-line options? Conservatively assume all of them, /except/
those with the new DoesNotAffectIncrementalBuild flag in Options.td.)
Swift SVN r24385
This is important because we might get part-way through the full
compilation, overwriting swiftdeps files as we go, and then encounter an
error. We don't want to lose information about any decls that have been
removed since the previous compile, so we propagate forward the information
we already have by saving it to a "build record" file.
More simply, this is necessary to track when a file is removed from a target.
The next commit will handle reading in this file at the start of a build.
Swift SVN r23968
...and rename Command to Job (previously the name of the base class).
We never generated job lists directly contained in other job lists, so
let's not even worry about this case. We may some day need to break Job
out into separate subclasses (Clang has Command and FallbackCommand in
addition to JobList), but we should be able to keep the list separate.
No intended functionality change.
Swift SVN r23144
Instead, if we can't schedule a command, record why it was blocked. When the
blocking command completes, we then try to reschedule everything that was
blocked on it.
This is also more robust for cross-job-list dependencies---things like the
link job depending on the merge-module job and both depending on compile jobs.
Swift SVN r23143
This level is selected by -parseable-output. This flag is only accepted by
swiftc, since it does not make sense for any of the interactive modes.
(Currently, this level prints out the same information as Verbose, with a
"Command: " string prepended.)
Additionally, in Compilation::performJobs, set RequiresBufferedOutput to true if
parseable output was requested, since parseable output will require buffered
output.
Part of <rdar://problem/15958329>.
Swift SVN r20872
Previously, Verbose output was not produced for this case; it is now, and this
is achieved by making performSingleCommand() a private method on Compilation
instead of a static function.
Swift SVN r20850
If a temporary file is mentioned in the output map, it is also preserved.
We can make a nicer -save-temps later, but for now this will at least stop
leaving random files in /var/tmp.
<rdar://problem/16874893>
Swift SVN r17850
Added a TaskSignalledCallback to TaskQueue, which will be called instead of
TaskFinishedCallback if the task exited abnormally.
In Unix/TaskQueue.inc, check WIFSIGNALED if the task did not pass WIFEXITED,
and call the TaskSignalledCallback if necessary. In Default/TaskQueue.inc, check
for a return code of -2; if present, call the TaskSignalledCallback instead of
the TaskFinishedCallback.
Updated Compilation to pass a TaskSignalledCallback.
Added diagnostics to indicate when a command signalled as well as when a command
failed with either poor diagnostics or a non-1 exit code. (These match Clang’s
diagnostics.) Added tests to ensure these diagnostics are emitted when the
frontend crashes or fails an assertion (if assertions are available).
This fixes <rdar://problem/16012199>.
Swift SVN r13654
Added an OutputLevel enum, which is used by Compilation to determine what kind
of output it should emit when performing Jobs.
In Driver::buildCompilation(), set the default OutputLevel for the Compilation
to Normal, but set it to Verbose if -v was passed. This means that, by default,
the driver will only print subtask output; this matches Clang's behavior.
Swift SVN r13255
Added DiagnosticsDriver.def and DiagnosticsDriver.h for driver-only diagnostics.
(Diagnostics which are shared with the frontend remain in
DiagnosticsFrontend.{def,h}.)
Added a DiagnosticEngine& to Compilation, so that it can emit diagnostics for
events which occur while performing Jobs.
Replaced all of the locations where we were manually printing error messages to
emitting real diagnostics, adding diagnostics if necessary.
Updated Driver::buildCompilation() so that it fails early if any errors were
encountered.
Updated test/Driver/actions.swift to pass a -module-name for multi-input tests.
Swift SVN r13175
Across recursive calls to performJobsInList(), keep track of ScheduledCommands
and FinishedCommands, so we can do the following:
- Don’t schedule a Command which is already scheduled (since it may be
scheduled as a peer before we try to schedule it as an input).
- Don’t schedule a Command whose inputs have not all finished.
Swift SVN r12444
This instructs the driver to skip task execution by using a DummyTaskQueue in Compilation::performJobsInList().
This option should generally only be used for testing, as DummyTaskQueue may provide fake buffered output.
Swift SVN r12350
In Compilation, perform Jobs by scheduling Commands which need to be run (currently
all Commands, but this can be refined later) on TaskQueues by doing the following:
1. Perform all inputs to all Jobs in the current JobList. (Treat a JobList as its
own inputs for scheduling purposes.)
2. After each Command's inputs run, check to see if that Command needs to run.
If so, schedule it for execution. (Currently, all Commands always need to run.)
3. Set up a TaskFinishedCallback which will check to see if any other Commands need
to run as a result of executing a particular Command. (Currently, all Commands
depend on all other Commands.) If a Command needs to run and it is not already
scheduled for execution, schedule it for execution.
4. Ask the TaskQueue to execute. (This will call the TaskFinishedCallback as
necessary).
Swift SVN r12060
Actual execution of Jobs is still performed under-the-covers by JobList::run(), but this abstraction will allow the Compilation to execute Jobs in parallel.
Swift SVN r11334
The driver does not yet support parallel execution, but this sets the Compilation up with the necessary information to execute commands in parallel.
Swift SVN r11333
- Added a couple of new targets:
- libswiftDriver, which contains most of the driver implementation
- swift_driver, which produces the actual executable
- Added centralized version information into libswiftBasic.
- Added a new "Driver Design & Internals" document, which currently describes
the high-level design of the Swift driver.
- Implemented an early version of the functionality of the driver, including
versions of the Parse, Pipeline, Bind, Translate, and Execute driver stages.
Parse, Pipeline, and Bind are largely implemented; Translate and Execute are
early placeholders. (Translate produces "swift_driver --version" and "ld -v"
commands, while Execute performs all subtasks sequentially, rather than in
parallel.)
This is just the starting point for the Swift driver. Tests for the existing
behavior are forthcoming.
Swift SVN r10933
