When enabling the early swift driver on Windows, these tests need to be
adjusted for the new driver name that is reported. Add an additional
spelling for the driver to accommodate that for the testsuite.
Build swift-frontend as the primary Swift binary, and have
swift/swiftc/etc. symlink over to it. This is a step toward allowing
swift-driver to replace the swift and swiftc binaries.
Clang 8 or 9 seems to have changed from EXE to exe. Allow both
capitalizations (which is not important in Windows) as a workaround.
Maybe in the future we can remove the uppercase option.
Summary:
The following two invocations of `swiftc` behave differently, despite
their only difference being the `-g` option:
```
swiftc foo.swift bar.o baz.swiftmodule -o foo
swiftc -g foo.swift bar.o baz.swiftmodule -o foo
```
The first invocation compiles `foo.swift`, links it with `bar.o`, and
passes the AST information from `baz.swiftmodule` to the linker. The
second invocation results in the following error:
```
<unknown>:0: error: cannot load module 'baz' as 'foo'
```
The source of the problem is that the driver determines whether to
generate a module based on the debug info level that has been
requested, and merges all .swiftmodule inputs if a module is being
generated.
Modify this behavior to instead pass .swiftmodule inputs directly to the
linker if our output is to be linked. This results in both the `swiftc` and
the `swiftc -g` invocations above succeeding.
Test Plan:
1. `utils/build-script --test` passes.
2. After cloning https://github.com/modocache/SR-2660 and modifying its
`build-driver.sh` to point at the local Swift source build
directory, running `build-driver.sh` succeeds, and lldb is able to
print descriptions with accurate debug info.
The "Tool" abstraction wasn't buying us enough to deserve the added
complexity. Now a ToolChain turns Actions into Jobs, and every helper
tool is searched for relative to Swift first. Much simpler.
Swift SVN r31563
Previously we treated this the same as the inputs to the linker, but this
was problematic for a few reasons:
- Backend jobs don't produce
- .o inputs never produce .swiftmodule files (obviously).
So now we:
- explicitly track what can produce a swiftmodule
- don't run module merging if there's nothing to merge
- allow linking without a swiftmodule even under -g
Which gets us closer to being able to run the entire test suite with -g.
rdar://problem/22332569
Swift SVN r31376
Add -whole-module-optimization option as synonym of
-force-single-frontend-invocation (for now). Add support for
-output-file-map when using -whole-module-optimization with multiple
input files -- the key for the single output file's map is the empty string.
<rdar://problem/18603795>
Swift SVN r23625
This was being staged as -emit-reference-dependencies, but it's affecting
a lot more than that. Eventually for command line builds this should also
preserve intermediate build outputs (like .o and .swiftmodule) for use in
later builds, rather than putting them in $TMPDIR and deleting them after.
This option is still hidden.
Swift SVN r23295
This just adds another possible output kind and forwards it to the frontend.
Note that in builds without an output map, this will just dump the dependencies
next to the output file, which is a temp file whose name is chosen randomly.
That's not so useful, but we can fix it later.
Part of rdar://problem/15353101
Swift SVN r23220
Most of the tests just got moved to swiftc, but some of them were
duplicated to apply to both swiftc and swift. A handful still use the
existing 'swift' because they are for the existing '-i' syntax.
Note: this means config.swift_driver now uses the staging symlink
'swifti'. The only thing preventing us from dropping the 'i' and getting
rid of the old interface is that Xcode hasn't moved to swiftc yet
<rdar://problem/17769327>.
Swift SVN r20467
This produces output similar to "clang -ccc-print-bindings".
Also added several tests to ensure that "swift_driver -driver-print-bindings"
behaves as expected.
Swift SVN r10935
