[PATCH 0/3] Improve and document stdx::simd testsuite

[Matthias Kretz]

As discussed a long time ago on IRC, this improves (i.e. decreases by default) 
the verbosity of make check-simd, gives more verbosity options, and finally 
documents how the simd testsuite is used and how it works. In addition, after 
PR98834 was resolved, remove the -fno-tree-vrp workaround.

Tested on x86_64-linux (and more).


Matthias Kretz (3):
  libstdc++: Remove -fno-tree-vrp after PR98834 was resolved
  libstdc++: Improve output verbosity options and default
  libstdc++: Document simd testsuite

 libstdc++-v3/testsuite/Makefile.am            |   3 +-
 libstdc++-v3/testsuite/Makefile.in            |   3 +-
 .../testsuite/experimental/simd/README.md     | 257 ++++++++++++++++++
 .../testsuite/experimental/simd/driver.sh     | 137 +++++++---
 .../experimental/simd/generate_makefile.sh    |  33 ++-
 5 files changed, 380 insertions(+), 53 deletions(-)
 create mode 100644 libstdc++-v3/testsuite/experimental/simd/README.md

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 Dr. Matthias Kretz                           https://mattkretz.github.io
 GSI Helmholtz Centre for Heavy Ion Research               https://gsi.de
 std::experimental::simd              https://github.com/VcDevel/std-simd
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