tree a0986041a6b488ca686aa845352007c07736edd6
parent 62fd0d967a138085939f2c7e51f33c14b1725396
author Scott Todd <scott.todd0@gmail.com> 1706650551 -0800
committer GitHub <noreply@github.com> 1706650551 -0800
gpgsig -----BEGIN PGP SIGNATURE-----
 
 wsFcBAABCAAQBQJluWu3CRC1aQ7uu5UhlAAAESMQACBA+11/p9uWLJ7wCwEnYpSe
 2LXqLra5vWc/FBaUWaGwJEL+Ay7gvmb7PvkRRQw/oiNAJkIYTZRp0FcrlaAuh0ee
 f5N1cp6ebPyXdoROoGvEse5sCC67bDDdq2l1WNnOcY/KA4htdfYDuMYx1syCyQOJ
 8qbv6ayjLZCMkSuqxtJuNcn5/I82LlDjpP8SfkHMKp9KU+WnGbSEl4S7qW16lrvv
 LjH2dchFx+WsiIyFfEbDSHdYFEAeO8aXYgtUJq/D6LdGIFa8gAb/Q3VAycxgJ74V
 IZwopfyZVWk70zGjqt/vx5k3hB5GRCkytZ1kYBhBe7O//pGgXYQBRr8QurLJMefA
 UAwd3MAISIXmKe0nJScPsTnz32DrhPLy9ZQMINolFY0DiYF1R3roTg7W/JKussCy
 ta4xd5Tp1rkiHIdYSMF1gSxPjR+zmoKwG8WehOhByE0HwY6Dx/vevDvbb7IxTEPQ
 qSmmZSaHSeGN4JoL2eIBuiIP6Gc/wyd6sLjiKOOdajJQydZEWOD6gcv4zqj8X0wZ
 fCDbR2E+hAz3wCDNDGPaEQvVGCApopenG9812ZABFlC0j4V06O69FMkY6AnyJX/d
 UnPPh0gpExvoIJHAXt6Rrb19lamHlbpq0Ga0QSGeLjvv7W+M3y0Xyx/XFeIpPIgR
 S/7hYMbyMlnVXmaHGtJK
 =dE7n
 -----END PGP SIGNATURE-----
 

Allow using iree_lit_test without building the compiler. (#16267)

Progress on https://github.com/openxla/iree/issues/16203.

* Install more tools that are used for lit tests
* Import those installed tools
* Filter based on tools existing (imported or built) rather than based
on building the compiler
* Add tests subdirectory _after_ tools are imported/defined

Now I can run more tests from a build that imports compiler tools rather
than build them from source:
```
cmake -G Ninja -B ../iree-build-rt/ . \
  -DIREE_BUILD_COMPILER=OFF \
  -DIREE_HOST_BIN_DIR=D:\dev\projects\iree-build\install\bin \
  -DLLVM_EXTERNAL_LIT=D:\dev\projects\iree\third_party\llvm-project\llvm\utils\lit\lit.py
cmake --build ../iree-build-rt
cmake --build --target iree-test-deps
ctest --test-dir ../iree-build-rt
```

New failures that I see are:

* `iree/tests/e2e/regression/libm_linking.mlir.test`
* WindowsLinkerTool looks for `lld-link`, which we don't install. That
appears to be a copy of `lld`, which is different from IREE's `iree-lld`
(which complains with `Expected -flavor <gnu|link|darwin|wasm>` when I
try to use it in that test)
* `iree/samples/custom_module/dynamic/test/example.mlir.test`
* Not sure what's happening here - this passes in my regular build and
works when run standalone but segfaults when run under ctest in the
installed test suite