[GPU][DT] Add e2e matmul tests for GPU data tiling

[Max191]

This adds some matmul e2e tests for GPU data tiling on gfx94* chips.

This depends on:
#18626
#18623
#18624
#18625

[bjacob]

This CMakeLists.txt is autogenerated from BUILD.bazel so update that. Might create opportunity to factor testcases with list comprehensions, see other tests in that file.

[hanhanW]

This CMakeLists.txt is autogenerated from BUILD.bazel so update that. Might create opportunity to factor testcases with list comprehensions, see other tests in that file.

This is not true in this directory. The AMDGPU matmul test suites are only available in CMakeLists.txt now. @ScottTodd has been working on some cleanups for e2e tests, but this part is not done yet.

iree/tests/e2e/matmul/CMakeLists.txt

Lines 2254 to 2256 in ff1b8b0

	### BAZEL_TO_CMAKE_PRESERVES_ALL_CONTENT_BELOW_THIS_LINE ###
	# To distinguish between CDNA(gfx9) and RDNA3(gfx11)

[ScottTodd]

This CMakeLists.txt is autogenerated from BUILD.bazel so update that. Might create opportunity to factor testcases with list comprehensions, see other tests in that file.

This is not true in this directory. The AMDGPU matmul test suites are only available in CMakeLists.txt now. @ScottTodd has been working on some cleanups for e2e tests, but this part is not done yet.

iree/tests/e2e/matmul/CMakeLists.txt

Lines 2254 to 2256 in ff1b8b0

	### BAZEL_TO_CMAKE_PRESERVES_ALL_CONTENT_BELOW_THIS_LINE ###
	# To distinguish between CDNA(gfx9) and RDNA3(gfx11)

Yeah I have plans to move these matmul tests to https://github.com/iree-org/iree-test-suites/tree/main/linalg_ops/matmul, with some incremental refactoring work on iree-org/iree-test-suites#22. No ETA on the work there - far too backlogged. I haven't looked specifically at testing variants like different GPUs or flags yet.

[bjacob]

@ScottTodd , is iree-test-suites going to be a new submodule in IREE? After the tests get moved there, will they still be run as part of just doing ctest in my IREE build?

[ScottTodd]

@ScottTodd , is iree-test-suites going to be a new submodule in IREE? After the tests get moved there, will they still be run as part of just doing ctest in my IREE build?

TBD, but likely not a submodule. The separate repository gives us a place to put more files without bloating this repository, so keeping it optional is a design goal.

I have a draft of an integration here: #18291 . Workflows separately git checkout the test suite then follow the steps in the README to build the standalone CMake project (pointing at the already built IREE packages to test) and run the tests. I also tossed around some ideas for a CMake subproject instead of something fully standalone, to preserve the existing ergonomics, but I'm finding that fairly limiting and want to make a clean cut if possible.