From c7b6a7587f215e913cec9ed523bf32bb0405fd3f Mon Sep 17 00:00:00 2001 From: Jan Hubicka Date: Wed, 14 Oct 2020 11:44:30 +0200 Subject: Support ofsetted parameters in local modref 2020-10-14 Jan Hubicka * doc/invoke.texi: (ipa-jump-function-lookups): Document param. * ipa-modref.c (merge_call_side_effects): Use unadjusted_ptr_and_unit_offset. * ipa-prop.c (unadjusted_ptr_and_unit_offset): New function. * ipa-prop.h (unadjusted_ptr_and_unit_offset): Declare. * params.opt: (-param-ipa-jump-function-lookups): New. --- gcc/ipa-modref.c | 18 +++++++++++++++--- 1 file changed, 15 insertions(+), 3 deletions(-) (limited to 'gcc/ipa-modref.c') diff --git a/gcc/ipa-modref.c b/gcc/ipa-modref.c index 771a0a8..a6dfe1f 100644 --- a/gcc/ipa-modref.c +++ b/gcc/ipa-modref.c @@ -531,6 +531,10 @@ merge_call_side_effects (modref_summary *cur_summary, for (unsigned i = 0; i < gimple_call_num_args (stmt); i++) { tree op = gimple_call_arg (stmt, i); + bool offset_known; + poly_int64 offset; + + offset_known = unadjusted_ptr_and_unit_offset (op, &op, &offset); if (TREE_CODE (op) == SSA_NAME && SSA_NAME_IS_DEFAULT_DEF (op) && TREE_CODE (SSA_NAME_VAR (op)) == PARM_DECL) @@ -547,15 +551,23 @@ merge_call_side_effects (modref_summary *cur_summary, index++; } parm_map[i].parm_index = index; - parm_map[i].parm_offset_known = true; - parm_map[i].parm_offset = 0; + parm_map[i].parm_offset_known = offset_known; + parm_map[i].parm_offset = offset; } else if (points_to_local_or_readonly_memory_p (op)) parm_map[i].parm_index = -2; else parm_map[i].parm_index = -1; if (dump_file) - fprintf (dump_file, " %i", parm_map[i].parm_index); + { + fprintf (dump_file, " %i", parm_map[i].parm_index); + if (parm_map[i].parm_offset_known) + { + fprintf (dump_file, " offset:"); + print_dec ((poly_int64_pod)parm_map[i].parm_offset, + dump_file, SIGNED); + } + } } if (dump_file) fprintf (dump_file, "\n"); -- cgit v1.1