rs6000.c (output_vec_const_move): Handle little-endian code generation.

rs6000.c (output_vec_const_move): Handle little-endian code generation.

	gcc/
	* config/rs6000/rs6000.c (output_vec_const_move): Handle
	little-endian code generation.
	* config/rs6000/spe.md (spe_evmergehi): Rename to...
	(vec_perm00_v2si): ... this.  Handle little-endian code
	generation.
	(spe_evmergehilo): Rename to...
	(vec_perm01_v2si): ... this.  Handle little-endian code
	generation.
	(spe_evmergelo): Rename to...
	(vec_perm11_v2si): ... this.  Handle little-endian code
	generation.
	(spe_evmergelohi): Rename to...
	(vec_perm10_v2si): ... this.  Handle little-endian code
	generation.
	(spe_evmergehi, spe_evmergehilo): New expanders.
	(spe_evmergelo, spe_evmergelohi): Likewise.
	(*frob_<SPE64:mode>_<DITI:mode>): Handle little-endian code
	generation.
	(*frob_tf_ti): Likewise.
	(*frob_<mode>_di_2): Likewise.
	(*frob_tf_di_8_2): Likewise.
	(*frob_di_<mode>): Likewise.
	(*frob_ti_tf): Likewise.
	(*frob_<DITI:mode>_<SPE64:mode>_2): Likewise.
	(*frob_ti_<mode>_8_2): Likewise.
	(*frob_ti_tf_2): Likewise.
	(mov_si<mode>_e500_subreg0): Rename to...
	(mov_si<mode>_e500_subreg0_be): ... this.  Restrict to the big
	endianness only.
	(*mov_si<mode>_e500_subreg0_le): New instruction pattern.
	(*mov_si<mode>_e500_subreg0_elf_low): Rename to...
	(*mov_si<mode>_e500_subreg0_elf_low_be): ... this.  Restrict to
	the big endianness only.
	(*mov_si<mode>_e500_subreg0_elf_low_le): New instruction pattern.
	(*mov_si<mode>_e500_subreg0_2): Rename to...
	(*mov_si<mode>_e500_subreg0_2_be): ... this.  Restrict to the
	big big endianness only.
	(*mov_si<mode>_e500_subreg0_2_le): New instruction pattern.
	(*mov_si<mode>_e500_subreg4): Rename to...
	(*mov_si<mode>_e500_subreg4_be): ... this.  Restrict to the big
	endianness only.
	(mov_si<mode>_e500_subreg4_le): New instruction pattern.
	(*mov_si<mode>_e500_subreg4_elf_low): Rename to...
	(*mov_si<mode>_e500_subreg4_elf_low_be): ... this.  Restrict to
	the big endianness only.
	(*mov_si<mode>_e500_subreg4_elf_low_le): New instruction/splitter
	pattern.
	(*mov_si<mode>_e500_subreg4_2): Rename to...
	(*mov_si<mode>_e500_subreg4_2_be): ... this.  Restrict to the big
	endianness only.
	(*mov_si<mode>_e500_subreg4_2_le): New instruction pattern.
	(*mov_sitf_e500_subreg8): Rename to...
	(*mov_sitf_e500_subreg8_be): ... this.  Restrict to the big
	endianness only.
	(*mov_sitf_e500_subreg8_le): New instruction pattern.
	(*mov_sitf_e500_subreg8_2): Rename to...
	(*mov_sitf_e500_subreg8_2_be): ... this.  Restrict to the big
	endianness only.
	(*mov_sitf_e500_subreg8_2_le): New instruction pattern.
	(*mov_sitf_e500_subreg12): Rename to...
	(*mov_sitf_e500_subreg12_be): ... this.  Restrict to the big
	endianness only.
	(*mov_sitf_e500_subreg12_le): New instruction pattern.
	(*mov_sitf_e500_subreg12_2): Rename to...
	(*mov_sitf_e500_subreg12_2_be): ... this.  Restrict to the big
	endianness only.
	(*mov_sitf_e500_subreg12_2_le): New instruction pattern.

	gcc/testsuite/
	* gcc.target/powerpc/spe-evmerge.c: New file.

From-SVN: r212335