vec-init-4.c: New runtime tests for various vector short/char initializations.

vec-init-4.c: New runtime tests for various vector short/char initializations.

2016-08-29  Michael Meissner  <meissner@linux.vnet.ibm.com>

	* gcc.target/powerpc/vec-init-4.c: New runtime tests for various
	vector short/char initializations.
	* gcc.target/powerpc/vec-init-5.c: Likewise.
	* gcc.target/powerpc/vec-init-6.c: New compile time test for
	vector initialization optimizations.
	* gcc.target/powerpc/vec-init-7.c: Likewise.
	* gcc.target/powerpc/vec-init-8.c: New runtime tests for various
	vector float/double initializations.
	* gcc.target/powerpc/vec-init-9.c: Likewise.

From-SVN: r239837