| Message ID | 0e5fddf8-8605-a0d6-eede-1a8fcf12535c@codesourcery.com |
|---|---|
| State | New |
| Headers | show |
| Series | vect: Vectorize via libfuncs | expand |
On 6/13/23 09:55, Andrew Stubbs wrote: > Subject: > [PATCH] vect: Vectorize via libfuncs > From: > Andrew Stubbs <ams@codesourcery.com> > Date: > 6/13/23, 09:55 > > To: > "gcc-patches@gcc.gnu.org" <gcc-patches@gcc.gnu.org> > > > This patch allows vectorization when operators are available as > libfuncs, rather that only as insns. > > This will be useful for amdgcn where we plan to vectorize loops that > contain integer division or modulus, but don't want to generate inline > instructions for the division algorithm every time. > > The change should have not affect architectures that do not define > vector-mode libfuncs. > > OK for mainline? > > Andrew > > 230613-vect-allow-libfuncs.patch > > vect: vectorize via libfuncs > > This patch allows vectorization when the libfuncs are defined. > > gcc/ChangeLog: > > * tree-vect-generic.cc: Include optabs-libfuncs.h. > (get_compute_type): Check optab_libfunc. > * tree-vect-stmts.cc: Include optabs-libfuncs.h. > (vectorizable_operation): Check optab_libfunc. > > diff --git a/gcc/tree-vect-generic.cc b/gcc/tree-vect-generic.cc > index b7d4a919c55..4d784a70c0d 100644 > --- a/gcc/tree-vect-generic.cc > +++ b/gcc/tree-vect-generic.cc > @@ -44,6 +44,7 @@ along with GCC; see the file COPYING3. If not see > #include "gimple-fold.h" > #include "gimple-match.h" > #include "recog.h" /* FIXME: for insn_data */ > +#include "optabs-libfuncs.h" > > > /* Build a ternary operation and gimplify it. Emit code before GSI. > @@ -1714,7 +1715,8 @@ get_compute_type (enum tree_code code, optab op, tree type) > machine_mode compute_mode = TYPE_MODE (compute_type); > if (VECTOR_MODE_P (compute_mode)) > { > - if (op && optab_handler (op, compute_mode) != CODE_FOR_nothing) > + if (op && (optab_handler (op, compute_mode) != CODE_FOR_nothing > + || optab_libfunc (op, compute_mode))) Formatting nit. Bring the && down and align it under OP. That'll require re-indenting the optab_libfunc call as well. OK with that nit. jeff
diff --git a/gcc/tree-vect-generic.cc b/gcc/tree-vect-generic.cc index b7d4a919c55..4d784a70c0d 100644 --- a/gcc/tree-vect-generic.cc +++ b/gcc/tree-vect-generic.cc @@ -44,6 +44,7 @@ along with GCC; see the file COPYING3. If not see #include "gimple-fold.h" #include "gimple-match.h" #include "recog.h" /* FIXME: for insn_data */ +#include "optabs-libfuncs.h" /* Build a ternary operation and gimplify it. Emit code before GSI. @@ -1714,7 +1715,8 @@ get_compute_type (enum tree_code code, optab op, tree type) machine_mode compute_mode = TYPE_MODE (compute_type); if (VECTOR_MODE_P (compute_mode)) { - if (op && optab_handler (op, compute_mode) != CODE_FOR_nothing) + if (op && (optab_handler (op, compute_mode) != CODE_FOR_nothing + || optab_libfunc (op, compute_mode))) return compute_type; if (code == MULT_HIGHPART_EXPR && can_mult_highpart_p (compute_mode, diff --git a/gcc/tree-vect-stmts.cc b/gcc/tree-vect-stmts.cc index a7acc032d47..71a8cf2c6d4 100644 --- a/gcc/tree-vect-stmts.cc +++ b/gcc/tree-vect-stmts.cc @@ -56,6 +56,7 @@ along with GCC; see the file COPYING3. If not see #include "gimple-fold.h" #include "regs.h" #include "attribs.h" +#include "optabs-libfuncs.h" /* For lang_hooks.types.type_for_mode. */ #include "langhooks.h" @@ -6528,8 +6529,8 @@ vectorizable_operation (vec_info *vinfo, "no optab.\n"); return false; } - target_support_p = (optab_handler (optab, vec_mode) - != CODE_FOR_nothing); + target_support_p = (optab_handler (optab, vec_mode) != CODE_FOR_nothing + || optab_libfunc (optab, vec_mode)); } bool using_emulated_vectors_p = vect_emulated_vector_p (vectype);