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authorRichard Sandiford <richard.sandiford@linaro.org>2017-08-30 11:10:28 +0000
committerRichard Sandiford <rsandifo@gcc.gnu.org>2017-08-30 11:10:28 +0000
commitfffbab82e7fd15ef695159746a0ce7b9ac906778 (patch)
tree1029fb2ff65fd47b432f0cdae4a809c11325b13b /gcc/optabs-libfuncs.c
parentbf862c537bfd76233e3938cb3811f0fa2d27de25 (diff)
[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 <richard.sandiford@linaro.org> Alan Hayward <alan.hayward@arm.com> David Sherwood <david.sherwood@arm.com> 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 <alan.hayward@arm.com> Co-Authored-By: David Sherwood <david.sherwood@arm.com> From-SVN: r251469
Diffstat (limited to 'gcc/optabs-libfuncs.c')
-rw-r--r--gcc/optabs-libfuncs.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/gcc/optabs-libfuncs.c b/gcc/optabs-libfuncs.c
index 13463102f61..151a473a66b 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. */