rs6000.c (rs6000_gimple_fold_builtin): Add handling for early expansion of vec_eqv.

rs6000.c (rs6000_gimple_fold_builtin): Add handling for early expansion of vec_eqv.

[gcc]

2017-06-08  Will Schmidt  <will_schmidt@vnet.ibm.com>

	* config/rs6000/rs6000.c (rs6000_gimple_fold_builtin): Add handling
	for early expansion of vec_eqv.

[gcc/testsuite]

2017-06-08  Will Schmidt  <will_schmidt@vnet.ibm.com>

	* testsuite/gcc.target/powerpc/fold-vec-logical-eqv-char.c: New.
	* testsuite/gcc.target/powerpc/fold-vec-logical-eqv-float.c: New.
	* testsuite/gcc.target/powerpc/fold-vec-logical-eqv-floatdouble.c: New.
	* testsuite/gcc.target/powerpc/fold-vec-logical-eqv-int.c: New.
	* testsuite/gcc.target/powerpc/fold-vec-logical-eqv-longlong.c: New.
	* testsuite/gcc.target/powerpc/fold-vec-logical-eqv-short.c: New.

From-SVN: r249040