From 5f40b3cbe2e4164e80252cc4f2234cdb5ea6da39 Mon Sep 17 00:00:00 2001
From: Zdenek Dvorak <ook@ucw.cz>
Date: Sat, 15 Sep 2007 23:53:45 +0200
Subject: tree-parloops.c: New file.

	* tree-parloops.c: New file.
	* tree-ssa-operands.h (free_stmt_operands): Declare.
	* tree-ssa-loop-manip.c (split_loop_exit_edge): Return the new basic
	block.
	* tree-pass.h (pass_parallelize_loops): Declare.
	* omp-low.c (expand_omp_parallel, expand_omp_for): Update SSA form for
	virtual operands.
	(build_omp_regions_1): Allow analysing just a single OMP region and
	its subregions.
	( build_omp_regions_root, omp_expand_local): New functions.
	(build_omp_regions): Add argument to build_omp_regions_1 call.
	* builtins.def (DEF_GOMP_BUILTIN): Initialize OMP builtins when
	autoparallelization is run.
	* timevar.def (TV_TREE_PARALLELIZE_LOOPS): New.
	* tree-ssa-loop.c (gate_tree_parallelize_loops, tree_parallelize_loops,
	pass_parallelize_loops): New.
	* common.opt (ftree-parallelize-loops): New.
	* tree-flow.h (omp_expand_local, tree_duplicate_sese_tail,
	parallelize_loops): Declare.
	(add_phi_args_after_copy, split_loop_exit_edge): Declaration changed.
	* Makefile.in (tree-parloops.o): Added.
	* tree-cfg.c (add_phi_args_after_copy_edge, tree_duplicate_sese_tail):
	New functions.
	(add_phi_args_after_copy_bb): Use add_phi_args_after_copy_edge.
	(add_phi_args_after_copy): Call add_phi_args_after_copy_edge for
	one extra edge as well.
	(tree_duplicate_sese_region): Add argument to add_phi_args_after_copy.
	Use VEC_free to free doms vector.
	(move_block_to_fn): Update loop info. Remove phi nodes for virtual
	operands.  Recompute operand caches in the new function.
	(move_sese_region_to_fn): Update loop info.
	* passes.c (init_optimization_passes): Add pass_parallelize_loops.
	* tree-ssa-operands.c (free_stmt_operands): New function.

	* doc/passes.texi: Document autoparallelization.
	* doc/invoke.texi (-ftree-parallelize-loops): New option.

	* gcc.dg/tree-ssa/parallelization-1.c: New test.

From-SVN: r128517
---
 gcc/passes.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'gcc/passes.c')

diff --git a/gcc/passes.c b/gcc/passes.c
index 0bcb7c7b302..74f48a83401 100644
--- a/gcc/passes.c
+++ b/gcc/passes.c
@@ -629,6 +629,7 @@ init_optimization_passes (void)
 	      NEXT_PASS (pass_dce_loop);
 	    }
 	  NEXT_PASS (pass_complete_unroll);
+	  NEXT_PASS (pass_parallelize_loops);
 	  NEXT_PASS (pass_loop_prefetch);
 	  NEXT_PASS (pass_iv_optimize);
 	  NEXT_PASS (pass_tree_loop_done);
-- 
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