gcc/gcc tree-flow.h tree-dfa.c tree-cfg.c tree ...

[dberlin@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	ast-optimizer-branch
Changes by:	dberlin@gcc.gnu.org	2002-06-05 06:51:46

Modified files:
	gcc            : tree-flow.h tree-dfa.c tree-cfg.c 
	                 tree-ssa-pre.c ChangeLog 

Log message:
	2002-06-03  Daniel Berlin  <dberlin@dberlin.org>
	
	* tree-cfg.c (insert_before_*):  For insertion into FOR_INIT's, if
	we have an expression statement, transform into a compound
	expression.
	Pick the right place to insert a statement by iterating until we
	have a first_exec_stmt (first_non_decl_stmt) that is really the
	first executable non decl statement.
	(insert_after_*): Ditto.
	
	2002-06-03  Daniel Berlin  <dberlin@dberlin.org>
	
	* tree-ssa-pre.c: Update BB stuff to new basic block structure.
	Add some comments throughout (more coming, particularly describing
	the algorithm, rather than the implementation).
	(free_expr_info): Free refs as well.
	(defs_y_dom_x): Handle unary expressions as well.
	(insert_euse_in_preorder_dt_order_1): Use block of ref, not block
	of statement.
	Don't insert exit blocks if we hit them before hitting an
	occurrence (it's pointless).
	(rename_2): Return set of phi operands we touched, don't forget to
	free VARRAY's we allocated.
	(rename_1): Correct downsafety computation. Now get exact same
	results as Open64.
	Correct setting of has_real_use.
	(finalize_1): Fix up insertion.
	(code_motion): Fix up insertion.
	
	* tree-dfa.c (dump_varref):  Improve dumping of expression
	references.
	2002-06-03  Diego Novillo  <dnovillo@redhat.com>

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow.h.diff?cvsroot=gcc&only_with_tag=ast-optimizer-branch&r1=1.1.2.13&r2=1.1.2.14
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-dfa.c.diff?cvsroot=gcc&only_with_tag=ast-optimizer-branch&r1=1.1.2.21&r2=1.1.2.22
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-cfg.c.diff?cvsroot=gcc&only_with_tag=ast-optimizer-branch&r1=1.1.2.17&r2=1.1.2.18
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-pre.c.diff?cvsroot=gcc&only_with_tag=ast-optimizer-branch&r1=1.1.2.1&r2=1.1.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=ast-optimizer-branch&r1=1.10739.2.64&r2=1.10739.2.65