This is part 2/2 for contributing PPC64LE support for X86 SSE3 instrisics.

This is part 2/2 for contributing PPC64LE support for X86 SSE3 instrisics.

This is part 2/2 for contributing PPC64LE support for X86 SSE3
instrisics. This patch includes testsuite/gcc.target tests for the
intrinsics defined in pmmintrin.h.

Tested on POWER8 ppc64le and ppc64 (-m64 and -m32, the latter only reporting
10 new unsupported tests.)

[gcc/testsuite]

2018-10-09  Paul A. Clarke  <pc@us.ibm.com>

	* gcc.target/powerpc/sse3-check.h: New file.
	* gcc.target/powerpc/sse3-addsubps.c: New file.
	* gcc.target/powerpc/sse3-addsubpd.c: New file.
	* gcc.target/powerpc/sse3-haddps.c: New file.
	* gcc.target/powerpc/sse3-hsubps.c: New file.
	* gcc.target/powerpc/sse3-haddpd.c: New file.
	* gcc.target/powerpc/sse3-hsubpd.c: New file.
	* gcc.target/powerpc/sse3-lddqu.c: New file.
	* gcc.target/powerpc/sse3-movsldup.c: New file.
	* gcc.target/powerpc/sse3-movshdup.c: New file.
	* gcc.target/powerpc/sse3-movddup.c: New file.
	* gcc.target/powerpc/pr37191.c: New file.

From-SVN: r264992