From 12db0814023fa0f6a772e6e6cf0b256c2ab46b95 Mon Sep 17 00:00:00 2001 From: Tom de Vries Date: Mon, 18 Jan 2016 12:52:23 +0000 Subject: [PATCH] Allow pass_parallelize_loops to be run outside the loop pipeline 2016-01-18 Tom de Vries * tree-parloops.c (pass_parallelize_loops::execute): Allow pass_parallelize_loops to be run outside the loop pipeline. From-SVN: r232511 --- gcc/ChangeLog | 5 +++++ gcc/tree-parloops.c | 28 +++++++++++++++++++++++----- 2 files changed, 28 insertions(+), 5 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 8e2b6e6..19a9af1 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,8 @@ +2016-01-18 Tom de Vries + + * tree-parloops.c (pass_parallelize_loops::execute): Allow + pass_parallelize_loops to be run outside the loop pipeline. + 2016-01-18 Alan Lawrence * tree-scalar-evolution.c (follow_copies_to_constant): New. diff --git a/gcc/tree-parloops.c b/gcc/tree-parloops.c index 46d70ac..885103e 100644 --- a/gcc/tree-parloops.c +++ b/gcc/tree-parloops.c @@ -2844,23 +2844,41 @@ public: unsigned pass_parallelize_loops::execute (function *fun) { - if (number_of_loops (fun) <= 1) - return 0; - tree nthreads = builtin_decl_explicit (BUILT_IN_OMP_GET_NUM_THREADS); if (nthreads == NULL_TREE) return 0; + bool in_loop_pipeline = scev_initialized_p (); + if (!in_loop_pipeline) + loop_optimizer_init (LOOPS_NORMAL + | LOOPS_HAVE_RECORDED_EXITS); + + if (number_of_loops (fun) <= 1) + return 0; + + if (!in_loop_pipeline) + { + rewrite_into_loop_closed_ssa (NULL, TODO_update_ssa); + scev_initialize (); + } + + unsigned int todo = 0; if (parallelize_loops ()) { fun->curr_properties &= ~(PROP_gimple_eomp); checking_verify_loop_structure (); - return TODO_update_ssa; + todo |= TODO_update_ssa; + } + + if (!in_loop_pipeline) + { + scev_finalize (); + loop_optimizer_finalize (); } - return 0; + return todo; } } // anon namespace -- 2.7.4