This patch rewrites the SVE FP comparisons so that they always use
unspecs and so that they have an additional operand to indicate
whether the predicate is known to be a PTRUE. It's part of a series
that rewrites the SVE FP patterns so that they can cope with non-PTRUE
predicates.
2019-08-14 Richard Sandiford <richard.sandiford@arm.com>
gcc/
* config/aarch64/iterators.md (UNSPEC_COND_FCMUO): New unspec.
(cmp_op): Handle it.
(SVE_COND_FP_CMP): Rename to...
(SVE_COND_FP_CMP_I0): ...this.
(SVE_FP_CMP): Remove.
* config/aarch64/aarch64-sve.md
(*fcm<SVE_FP_CMP:cmp_op><SVE_F:mode>): Replace with...
(*fcm<SVE_COND_FP_CMP_I0:cmp_op><SVE_F:mode>): ...this new pattern,
using unspecs to represent the comparison.
(*fcmuo<SVE_F:mode>): Use UNSPEC_COND_FCMUO.
(*fcm<cmp_op><mode>_and_combine, *fcmuo<mode>_and_combine): Update
accordingly.
* config/aarch64/aarch64.c (aarch64_emit_sve_ptrue_op): Delete.
(aarch64_unspec_cond_code): Move after integer code. Handle
UNORDERED.
(aarch64_emit_sve_predicated_cond): Replace with...
(aarch64_emit_sve_fp_cond): ...this new function.
(aarch64_emit_sve_or_conds): Replace with...
(aarch64_emit_sve_or_fp_conds): ...this new function.
(aarch64_emit_sve_inverted_cond): Replace with...
(aarch64_emit_sve_invert_fp_cond): ...this new function.
(aarch64_expand_sve_vec_cmp_float): Update accordingly.
From-SVN: r274421
