https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106253
--- Comment #8 from CVS Commits <cvs-commit at gcc dot gnu.org> --- The trunk branch has been updated by Richard Sandiford <rsand...@gcc.gnu.org>: https://gcc.gnu.org/g:00eab0c654e09c8a0f1b1a3b1c7bff8764e64991 commit r13-1647-g00eab0c654e09c8a0f1b1a3b1c7bff8764e64991 Author: Richard Sandiford <richard.sandif...@arm.com> Date: Tue Jul 12 14:09:44 2022 +0100 Add internal functions for iround etc. [PR106253] The PR is about the aarch64 port using an ACLE built-in function to vectorise a scalar function call, even though the ECF_* flags for the ACLE function didn't match the ECF_* flags for the scalar call. To some extent that kind of difference is inevitable, since the ACLE intrinsics are supposed to follow the behaviour of the underlying instruction as closely as possible. Also, using target-specific builtins has the drawback of limiting further gimple optimisation, since the gimple optimisers won't know what the function does. We handle several other maths functions, including round, floor and ceil, by defining directly-mapped internal functions that are linked to the associated built-in functions. This has two main advantages: - it means that, internally, we are not restricted to the set of scalar types that happen to have associated C/C++ functions - the functions (and thus the underlying optabs) extend naturally to vectors This patch takes the same approach for the remaining functions handled by aarch64_builtin_vectorized_function. gcc/ PR target/106253 * predict.h (insn_optimization_type): Declare. * predict.cc (insn_optimization_type): New function. * internal-fn.def (IFN_ICEIL, IFN_IFLOOR, IFN_IRINT, IFN_IROUND) (IFN_LCEIL, IFN_LFLOOR, IFN_LRINT, IFN_LROUND, IFN_LLCEIL) (IFN_LLFLOOR, IFN_LLRINT, IFN_LLROUND): New internal functions. * internal-fn.cc (unary_convert_direct): New macro. (expand_convert_optab_fn): New function. (expand_unary_convert_optab_fn): New macro. (direct_unary_convert_optab_supported_p): Likewise. * optabs.cc (expand_sfix_optab): Pass insn_optimization_type to convert_optab_handler. * config/aarch64/aarch64-protos.h (aarch64_builtin_vectorized_function): Delete. * config/aarch64/aarch64-builtins.cc (aarch64_builtin_vectorized_function): Delete. * config/aarch64/aarch64.cc (TARGET_VECTORIZE_BUILTIN_VECTORIZED_FUNCTION): Delete. * config/i386/i386.cc (ix86_optab_supported_p): Handle lround_optab. * config/i386/i386.md (lround<X87MODEF:mode><SWI248x:mode>2): Remove optimize_insn_for_size_p test. gcc/testsuite/ PR target/106253 * gcc.target/aarch64/vect_unary_1.c: Add tests for iroundf, llround, iceilf, llceil, ifloorf, llfloor, irintf and llrint. * gfortran.dg/vect/pr106253.f: New test.
