[PATCH 05/16] Fix several check-simd interaction issues

[Matthias Kretz]

From: Matthias Kretz <kretz@kde.org>

libstdc++-v3/ChangeLog:
	* testsuite/experimental/simd/driver.sh (verify_test): Print
	test output on run xfail. Do not repeat lines from the log that
	were already printed on stdout.
	(test_selector): Make the compiler flags pattern usable as a
	substring selector.
	(toplevel): Trap on SIGINT and remove the log and sum files.
	Call timout with --foreground to quickly terminate on SIGINT.
	* testsuite/experimental/simd/generate_makefile.sh: Simplify run
	targets via target patterns. Default DRIVEROPTS to -v for run
	targets. Remove log and sum files after completion of the run
	target (so that it's always recompiled).
	Place help text into text file for reasonable 'make help'
	performance.
---
 .../testsuite/experimental/simd/driver.sh     | 16 +++--
 .../experimental/simd/generate_makefile.sh    | 70 +++++++++----------
 2 files changed, 44 insertions(+), 42 deletions(-)


--
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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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