Prefer linalg::qr over qr in the C++ API

[lezcano]

Fixes #60060

Also adds torch::linalg::qr to the C++ API, as it was missing.

[facebook-github-bot]

💊 CI failures summary and remediations

As of commit 7b85943 (more details on the Dr. CI page and at hud.pytorch.org/pr/60529):

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• 2/3 failures possibly* introduced in this PR
  • 1/2 non-scanned failure(s)
• 1/3 broken upstream at merge base 90cd57e from Jun 22 until Jun 23

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🕵️ 1 new failure recognized by patterns

The following CI failures do not appear to be due to upstream breakages:

pytorch_macos_10_13_py3_test (1/1)

Step: "Test" (full log | diagnosis details | 🔁 rerun)

Jun 23 12:10:42 RuntimeError: test_quantization failed!

Jun 23 12:10:42 Generated XML report: test-reports/dist-gloo/test_quantization/TEST-quantization.core.test_quantized_op.TestQNNPackOps-20210623120743.xml
Jun 23 12:10:42 Generated XML report: test-reports/dist-gloo/test_quantization/TEST-quantization.fx.test_quantize_fx.TestQuantizeFx-20210623120743.xml
Jun 23 12:10:42 Generated XML report: test-reports/dist-gloo/test_quantization/TEST-quantization.fx.test_quantize_fx.TestQuantizeFxOps-20210623120743.xml
Jun 23 12:10:42 Generated XML report: test-reports/dist-gloo/test_quantization/TEST-quantization.eager.test_quantize_eager_ptq.TestQuantizeONNXExport-20210623120743.xml
Jun 23 12:10:42 Generated XML report: test-reports/dist-gloo/test_quantization/TEST-quantization.core.test_quantized_op.TestQuantizedEmbeddingOps-20210623120743.xml
Jun 23 12:10:42 Traceback (most recent call last):
Jun 23 12:10:42   File "test/run_test.py", line 1313, in <module>
Jun 23 12:10:42     main()
Jun 23 12:10:42   File "test/run_test.py", line 1292, in main
Jun 23 12:10:42     raise RuntimeError(err_message)
Jun 23 12:10:42 RuntimeError: test_quantization failed!
Jun 23 12:10:42 + cleanup
Jun 23 12:10:42 + retcode=1
Jun 23 12:10:42 + set +x


Exited with code exit status 1

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🚧 1 fixed upstream failure:

These were probably caused by upstream breakages that were already fixed.

Please rebase on the viable/strict branch (expand for instructions)

If your commit is older than viable/strict, run these commands:

git fetch https://github.com/pytorch/pytorch viable/strict
git rebase FETCH_HEAD

• pytorch_bazel_test from Jun 22 until Jun 23 (21479ad - 56481f9)
  • 🔁 rerun

---

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[mruberry]

Awesome. Thanks @lezcano!

[facebook-github-bot]

@mruberry has imported this pull request. If you are a Facebook employee, you can view this diff on Phabricator.

[lezcano]

ping @mruberry

[facebook-github-bot]

@mruberry merged this pull request in af5a0df.