From fffbab82e7fd15ef695159746a0ce7b9ac906778 Mon Sep 17 00:00:00 2001 From: Richard Sandiford Date: Wed, 30 Aug 2017 11:10:28 +0000 Subject: [17/77] Add an int_mode_for_size helper function This patch adds a wrapper around mode_for_size for cases in which the mode class is MODE_INT (the commonest case). The return type can then be an opt_scalar_int_mode instead of a machine_mode. 2017-08-30 Richard Sandiford Alan Hayward David Sherwood gcc/ * machmode.h (int_mode_for_size): New function. * builtins.c (set_builtin_user_assembler_name): Use int_mode_for_size instead of mode_for_size. * calls.c (save_fixed_argument_area): Likewise. Make use of BLKmode explicit. * combine.c (expand_field_assignment): Use int_mode_for_size instead of mode_for_size. (make_extraction): Likewise. (simplify_shift_const_1): Likewise. (simplify_comparison): Likewise. * dojump.c (do_jump): Likewise. * dwarf2out.c (mem_loc_descriptor): Likewise. * emit-rtl.c (init_derived_machine_modes): Likewise. * expmed.c (flip_storage_order): Likewise. (convert_extracted_bit_field): Likewise. * expr.c (copy_blkmode_from_reg): Likewise. * graphite-isl-ast-to-gimple.c (max_mode_int_precision): Likewise. * internal-fn.c (expand_mul_overflow): Likewise. * lower-subreg.c (simple_move): Likewise. * optabs-libfuncs.c (init_optabs): Likewise. * simplify-rtx.c (simplify_unary_operation_1): Likewise. * tree.c (vector_type_mode): Likewise. * tree-ssa-strlen.c (handle_builtin_memcmp): Likewise. * tree-vect-data-refs.c (vect_lanes_optab_supported_p): Likewise. * tree-vect-generic.c (expand_vector_parallel): Likewise. * tree-vect-stmts.c (vectorizable_load): Likewise. (vectorizable_store): Likewise. gcc/ada/ * gcc-interface/decl.c (gnat_to_gnu_entity): Use int_mode_for_size instead of mode_for_size. (gnat_to_gnu_subprog_type): Likewise. * gcc-interface/utils.c (make_type_from_size): Likewise. Co-Authored-By: Alan Hayward Co-Authored-By: David Sherwood From-SVN: r251469 --- gcc/optabs-libfuncs.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'gcc/optabs-libfuncs.c') diff --git a/gcc/optabs-libfuncs.c b/gcc/optabs-libfuncs.c index 1346310..151a473 100644 --- a/gcc/optabs-libfuncs.c +++ b/gcc/optabs-libfuncs.c @@ -858,8 +858,10 @@ init_optabs (void) /* The ffs function operates on `int'. Fall back on it if we do not have a libgcc2 function for that width. */ if (INT_TYPE_SIZE < BITS_PER_WORD) - set_optab_libfunc (ffs_optab, mode_for_size (INT_TYPE_SIZE, MODE_INT, 0), - "ffs"); + { + scalar_int_mode mode = int_mode_for_size (INT_TYPE_SIZE, 0).require (); + set_optab_libfunc (ffs_optab, mode, "ffs"); + } /* Explicitly initialize the bswap libfuncs since we need them to be valid for things other than word_mode. */ -- cgit v1.1