[AArch64] Use SVE binary immediate instructions for conditional arithmetic
This patch lets us use the immediate forms of FADD, FSUB, FSUBR, FMUL, FMAXNM and FMINNM for conditional arithmetic. (We already use them for normal unconditional arithmetic.) 2019-08-15 Richard Sandiford <richard.sandiford@arm.com> Kugan Vivekanandarajah <kugan.vivekanandarajah@linaro.org> gcc/ * config/aarch64/aarch64.c (aarch64_print_vector_float_operand): Print 2.0 naturally. (aarch64_sve_float_mul_immediate_p): Return true for 2.0. * config/aarch64/predicates.md (aarch64_sve_float_negated_arith_immediate): New predicate, renamed from aarch64_sve_float_arith_with_sub_immediate. (aarch64_sve_float_arith_with_sub_immediate): Test for both positive and negative constants. (aarch64_sve_float_arith_with_sub_operand): Redefine as a register or an aarch64_sve_float_arith_with_sub_immediate. * config/aarch64/constraints.md (vsN): Use aarch64_sve_float_negated_arith_immediate. * config/aarch64/iterators.md (SVE_COND_FP_BINARY_I1): New int iterator. (sve_pred_fp_rhs2_immediate): New int attribute. * config/aarch64/aarch64-sve.md (cond_<SVE_COND_FP_BINARY:optab><SVE_F:mode>): Use sve_pred_fp_rhs1_operand and sve_pred_fp_rhs2_operand. (*cond_<SVE_COND_FP_BINARY_I1:optab><SVE_F:mode>_2_const) (*cond_<SVE_COND_FP_BINARY_I1:optab><SVE_F:mode>_any_const) (*cond_add<SVE_F:mode>_2_const, *cond_add<SVE_F:mode>_any_const) (*cond_sub<mode>_3_const, *cond_sub<mode>_any_const): New patterns. gcc/testsuite/ * gcc.target/aarch64/sve/cond_fadd_1.c: New test. * gcc.target/aarch64/sve/cond_fadd_1_run.c: Likewise. * gcc.target/aarch64/sve/cond_fadd_2.c: Likewise. * gcc.target/aarch64/sve/cond_fadd_2_run.c: Likewise. * gcc.target/aarch64/sve/cond_fadd_3.c: Likewise. * gcc.target/aarch64/sve/cond_fadd_3_run.c: Likewise. * gcc.target/aarch64/sve/cond_fadd_4.c: Likewise. * gcc.target/aarch64/sve/cond_fadd_4_run.c: Likewise. * gcc.target/aarch64/sve/cond_fsubr_1.c: Likewise. * gcc.target/aarch64/sve/cond_fsubr_1_run.c: Likewise. * gcc.target/aarch64/sve/cond_fsubr_2.c: Likewise. * gcc.target/aarch64/sve/cond_fsubr_2_run.c: Likewise. * gcc.target/aarch64/sve/cond_fsubr_3.c: Likewise. * gcc.target/aarch64/sve/cond_fsubr_3_run.c: Likewise. * gcc.target/aarch64/sve/cond_fsubr_4.c: Likewise. * gcc.target/aarch64/sve/cond_fsubr_4_run.c: Likewise. * gcc.target/aarch64/sve/cond_fmaxnm_1.c: Likewise. * gcc.target/aarch64/sve/cond_fmaxnm_1_run.c: Likewise. * gcc.target/aarch64/sve/cond_fmaxnm_2.c: Likewise. * gcc.target/aarch64/sve/cond_fmaxnm_2_run.c: Likewise. * gcc.target/aarch64/sve/cond_fmaxnm_3.c: Likewise. * gcc.target/aarch64/sve/cond_fmaxnm_3_run.c: Likewise. * gcc.target/aarch64/sve/cond_fmaxnm_4.c: Likewise. * gcc.target/aarch64/sve/cond_fmaxnm_4_run.c: Likewise. * gcc.target/aarch64/sve/cond_fminnm_1.c: Likewise. * gcc.target/aarch64/sve/cond_fminnm_1_run.c: Likewise. * gcc.target/aarch64/sve/cond_fminnm_2.c: Likewise. * gcc.target/aarch64/sve/cond_fminnm_2_run.c: Likewise. * gcc.target/aarch64/sve/cond_fminnm_3.c: Likewise. * gcc.target/aarch64/sve/cond_fminnm_3_run.c: Likewise. * gcc.target/aarch64/sve/cond_fminnm_4.c: Likewise. * gcc.target/aarch64/sve/cond_fminnm_4_run.c: Likewise. * gcc.target/aarch64/sve/cond_fmul_1.c: Likewise. * gcc.target/aarch64/sve/cond_fmul_1_run.c: Likewise. * gcc.target/aarch64/sve/cond_fmul_2.c: Likewise. * gcc.target/aarch64/sve/cond_fmul_2_run.c: Likewise. * gcc.target/aarch64/sve/cond_fmul_3.c: Likewise. * gcc.target/aarch64/sve/cond_fmul_3_run.c: Likewise. * gcc.target/aarch64/sve/cond_fmul_4.c: Likewise. * gcc.target/aarch64/sve/cond_fmul_4_run.c: Likewise. Co-Authored-By: Kugan Vivekanandarajah <kuganv@linaro.org> From-SVN: r274508
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