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From: Filip Kastl <pheeck@gcc.gnu.org> To: gcc-cvs@gcc.gnu.org Subject: [gcc(refs/users/pheeck/heads/sccp)] added call to update_gimple_stmt () Date: Wed, 7 Sep 2022 09:33:18 +0000 (GMT) [thread overview] Message-ID: <20220907093318.1B67A3858C00@sourceware.org> (raw) https://gcc.gnu.org/g:d0786c70d75b78a35e4cf723be921ccf09657bec commit d0786c70d75b78a35e4cf723be921ccf09657bec Author: Filip Kastl <filip.kastl@gmail.com> Date: Wed Sep 7 11:33:11 2022 +0200 added call to update_gimple_stmt () Diff: --- gcc/sccp.cc | 29 +++++++++++++++++++++++------ 1 file changed, 23 insertions(+), 6 deletions(-) diff --git a/gcc/sccp.cc b/gcc/sccp.cc index 32072c5d6d2..fd7f01db6b3 100644 --- a/gcc/sccp.cc +++ b/gcc/sccp.cc @@ -297,23 +297,40 @@ tarjan_compute_sccs (auto_vec<gphi *> &phis) static void replace_scc_by_value (vec<gphi *> scc, tree v) { + // DEBUG + if (scc.length () >= 3) + { + std::cerr << "Replacing scc of size " << scc.length () << std::endl; + } + for (gphi *phi : scc) { tree ssa_name = gimple_get_lhs (phi); // DEBUG unsigned vnum_get_replaced = SSA_NAME_VERSION (ssa_name); - unsigned vnum_replaced_by = SSA_NAME_VERSION (v); - std::cerr << "Replacing " << vnum_get_replaced << " by " << - vnum_replaced_by << std::endl; + if (TREE_CODE (v) == SSA_NAME) + { + unsigned vnum_replaced_by = SSA_NAME_VERSION (v); + std::cerr << "Replacing " << vnum_get_replaced << " by " << + vnum_replaced_by << std::endl; + } + else + { + std::cerr << "Replacing " << vnum_get_replaced << " by something" + << " that isn't an SSA name" << std::endl; + } /* Replace each occurence of phi by value v. */ use_operand_p use_p; imm_use_iterator iter; gimple *use_stmt; FOR_EACH_IMM_USE_STMT (use_stmt, iter, ssa_name) - FOR_EACH_IMM_USE_ON_STMT (use_p, iter) - SET_USE (use_p, v); + { + FOR_EACH_IMM_USE_ON_STMT (use_p, iter) + SET_USE (use_p, v); + update_stmt (use_stmt); + } } } @@ -463,7 +480,7 @@ public: unsigned pass_sccp::execute (function *) { - //debug_phis (); // DEBUG + debug_phis (); // DEBUG init_sccp (); auto_vec<gphi *> phis = get_all_phis ();
next reply other threads:[~2022-09-07 9:33 UTC|newest] Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-09-07 9:33 Filip Kastl [this message] 2023-02-15 10:14 Filip Kastl
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