backport: re PR target/89424 (__builtin_vec_ext_v1ti (v, i) results in ICE with varia...

backport: re PR target/89424 (__builtin_vec_ext_v1ti (v, i) results in ICE with variable i (RS6000))

gcc/ChangeLog:

2019-05-07  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	Backport from mainline.
	2019-05-06  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	PR target/89424
	* config/rs6000/rs6000.c (rs6000_expand_vector_extract): Add
	handling of V1TImode.

gcc/testsuite/ChangeLog:

2019-05-07  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	Backport from mainline.
	2019-05-06  Kelvin Nilsen  <kelvin@gcc.gnu.org>

	PR target/89424
	* gcc.target/powerpc/pr89424-0.c: New test.
	* gcc.target/powerpc/vsx-builtin-13a.c: Define macro PR89424 to
	enable testing of newly patched capability.
	* gcc.target/powerpc/vsx-builtin-13b.c: Likewise.
	* gcc.target/powerpc/vsx-builtin-20a.c: Likewise.
	* gcc.target/powerpc/vsx-builtin-20b.c: Likewise.

From-SVN: r270969