[PATCH], Add PowerPC vec_extract tests

[Michael Meissner <meissner at linux dot vnet dot ibm dot com>]

I am preparing to submit patches to enhance vec_extract for 64-bit power8 and
power9 systems shortly.  As part of my work, I added executable tests to test
all vector types, and doing both constant and variable vector extracts from
each vector type.

Because these are just new tests and not compiler changes, I verified that the
new tests run correctly with a current bootstrapped compiler on both a big
endian power7 system and a little endian power8 system.  Can I install these
tests on the trunk?

2016-07-21  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* gcc.target/powerpc/vec-extract.h: New files to check the
	vec_extract built-in functions for all vector types, testing
	accessing each element, both with constant and variable element
	numbers.
	* gcc.target/powerpc/vec-extract-v16qi.c: Likewise.
	* gcc.target/powerpc/vec-extract-v16qiu.c: Likewise.
	* gcc.target/powerpc/vec-extract-v2df.c: Likewise.
	* gcc.target/powerpc/vec-extract-v2di.c: Likewise.
	* gcc.target/powerpc/vec-extract-v4sf.c: Likewise.
	* gcc.target/powerpc/vec-extract-v4si.c: Likewise.
	* gcc.target/powerpc/vec-extract-v4siu.c: Likewise.
	* gcc.target/powerpc/vec-extract-v8hi.c: Likewise.
	* gcc.target/powerpc/vec-extract-v8hiu.c: Likewise.

-- 
Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA
email: meissner@linux.vnet.ibm.com, phone: +1 (978) 899-4797

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