rs6000: Add escape-newline support for builtins files

rs6000: Add escape-newline support for builtins files

2021-11-08  Bill Schmidt  <wschmidt@linux.ibm.com>

gcc/
	* config/rs6000/rs6000-builtin-new.def (VEC_INIT_V16QI): Use
	escape-newline support.
	(VEC_INIT_V4SI): Likewise.
	(VEC_INIT_V8HI): Likewise.
	(PACK_V1TI): Likewise.
	(DIVDEU): Likewise.
	(VFIRSTMISMATCHOREOSINDEX_V16QI): Likewise.
	(VFIRSTMISMATCHOREOSINDEX_V8HI): Likewise.
	(VFIRSTMISMATCHOREOSINDEX_V4SI): Likewise.
	(CMPRB2): Likewise.
	(VSTDCP): Likewise.
	(VSIEDP): Likewise.
	(FMAF128_ODD): Likewise.
	(VSCEQPUO): Likewise.
	(VSIEQP): Likewise.
	(VSIEQPF): Likewise.
	(VSTDCQP): Likewise.
	(PACK_TD): Likewise.
	(TABORTDC): Likewise.
	(TABORTDCI): Likewise.
	(SE_LXVRBX): Likewise.
	(SE_LXVRHX): Likewise.
	(SE_LXVRWX): Likewise.
	(SE_LXVRDX): Likewise.
	(VREPLACE_UN_UV2DI): Likewise.
	(VREPLACE_UN_UV4SI): Likewise.
	(VREPLACE_UN_V2DI): Likewise.
	(VREPLACE_ELT_UV2DI): Likewise.
	(VREPLACE_ELT_V2DI): Likewise.
	(ZE_LXVRBX): Likewise.
	(ZE_LXVRHX): Likewise.
	(ZE_LXVRWX): Likewise.
	(ZE_LXVRDX): Likewise.
	(CFUGED): Likewise.
	(CNTLZDM): Likewise.
	(CNTTZDM): Likewise.
	(PDEPD): Likewise.
	(PEXTD): Likewise.
	(PMXVBF16GER2): Likewise.
	(PMXVBF16GER2_INTERNAL): Likewise.
	(PMXVBF16GER2NN): Likewise.
	(PMXVBF16GER2NN_INTERNAL): Likewise.
	(PMXVBF16GER2NP): Likewise.
	(PMXVBF16GER2NP_INTERNAL): Likewise.
	(PMXVBF16GER2PN): Likewise.
	(PMXVBF16GER2PN_INTERNAL): Likewise.
	(PMXVBF16GER2PP): Likewise.
	(PMXVBF16GER2PP_INTERNAL): Likewise.
	(PMXVF16GER2): Likewise.
	(PMXVF16GER2_INTERNAL): Likewise.
	(PMXVF16GER2NN): Likewise.
	(PMXVF16GER2NN_INTERNAL): Likewise.
	(PMXVF16GER2NP): Likewise.
	(PMXVF16GER2NP_INTERNAL): Likewise.
	(PMXVF16GER2PN): Likewise.
	(PMXVF16GER2PN_INTERNAL): Likewise.
	(PMXVF16GER2PP): Likewise.
	(PMXVF16GER2PP_INTERNAL): Likewise.
	(PMXVF32GER_INTERNAL): Likewise.
	(PMXVF32GERNN): Likewise.
	(PMXVF32GERNN_INTERNAL): Likewise.
	(PMXVF32GERNP): Likewise.
	(PMXVF32GERNP_INTERNAL): Likewise.
	(PMXVF32GERPN): Likewise.
	(PMXVF32GERPN_INTERNAL): Likewise.
	(PMXVF32GERPP): Likewise.
	(PMXVF32GERPP_INTERNAL): Likewise.
	(PMXVF64GER): Likewise.
	(PMXVF64GER_INTERNAL): Likewise.
	(PMXVF64GERNN): Likewise.
	(PMXVF64GERNN_INTERNAL): Likewise.
	(PMXVF64GERNP): Likewise.
	(PMXVF64GERNP_INTERNAL): Likewise.
	(PMXVF64GERPN): Likewise.
	(PMXVF64GERPN_INTERNAL): Likewise.
	(PMXVF64GERPP): Likewise.
	(PMXVF64GERPP_INTERNAL): Likewise.
	(PMXVI16GER2): Likewise.
	(PMXVI16GER2_INTERNAL): Likewise.
	(PMXVI16GER2PP): Likewise.
	(PMXVI16GER2PP_INTERNAL): Likewise.
	(PMXVI16GER2S): Likewise.
	(PMXVI16GER2S_INTERNAL): Likewise.
	(PMXVI16GER2SPP): Likewise.
	(PMXVI16GER2SPP_INTERNAL): Likewise.
	(PMXVI4GER8): Likewise.
	(PMXVI4GER8_INTERNAL): Likewise.
	(PMXVI4GER8PP): Likewise.
	(PMXVI4GER8PP_INTERNAL): Likewise.
	(PMXVI8GER4): Likewise.
	(PMXVI8GER4_INTERNAL): Likewise.
	(PMXVI8GER4PP): Likewise.
	(PMXVI8GER4PP_INTERNAL): Likewise.
	(PMXVI8GER4SPP): Likewise.
	(PMXVI8GER4SPP_INTERNAL): Likewise.
	* config/rs6000/rs6000-gen-builtins.c (MAXLINES): New macro.
	(linebuf): Increase size.
	(lines): New variable.
	(lastline): Likewise.
	(real_line_pos): New function.
	(diag): Change signature.
	(bif_diag): Change signature; support escape-newline handling.
	(ovld_diag): Likewise.
	(fatal): Move earlier.
	(consume_whitespace): Adjust diag call.
	(advance_line): Add escape-newline handling; call fatal.
	(safe_inc_pos): Adjust diag call.
	(match_identifier): Likewise.
	(match_integer): Likewise.
	(match_to_right_bracket): Call fatal instead of diag; adjust diag
	call.
	(match_basetype): Adjust diag calls.
	(match_bracketed_pair): Likewise.
	(match_const_restriction): Likewise.
	(match_type): Likewise.
	(parse_args): Likewise.
	(parse_bif_attrs): Likewise.
	(complete_vector_type): Likewise.
	(complete_base_type): Likewise.
	(parse_prototype): Likewise.
	(parse_bif_entry): Likewise.
	(parse_bif_stanza): Likewise.
	(parse_ovld_entry): Likewise.
	(parse_ovld_stanza): Likewise.
	(main): Allocate buffers for lines[].