gcc/gcc ChangeLog fold-const.c tree-flow.h tre ...

[phython@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	phython@gcc.gnu.org	2005-07-20 20:26:11

Modified files:
	gcc            : ChangeLog fold-const.c tree-flow.h 
	                 tree-ssa-dom.c tree-vrp.c tree.h 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.dg: fold-alloca-1.c 

Log message:
	2005-07-20  James A. Morrison  <phython@gcc.gnu.org>
	
	* tree.h (tree_expr_nonzero_p): Export.
	* fold-const.c (tree_expr_nonzero_p): Likewise.
	Return true for CALL_EXPRs that are alloca calls.
	(fold_binary): Use omit_one_operand when checking EQ_EXPRs or NE_EXPRs
	against zero.
	* tree-flow.h (expr_computes_nonzero): Remove.
	* tree-vrp.c (expr_computes_nonzero): Remove.
	(vrp_expr_computes_nonzero): Use tree_expr_nonzero_p.
	(extract_range_from_unary_expr): Likewise.
	* tree-ssa-dom.c (record_equivalences_from_stmt): Use
	tree_expr_nonzero_p.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.9489&r2=2.9490
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fold-const.c.diff?cvsroot=gcc&r1=1.605&r2=1.606
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-flow.h.diff?cvsroot=gcc&r1=2.127&r2=2.128
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-ssa-dom.c.diff?cvsroot=gcc&r1=2.123&r2=2.124
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-vrp.c.diff?cvsroot=gcc&r1=2.41&r2=2.42
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree.h.diff?cvsroot=gcc&r1=1.747&r2=1.748
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5788&r2=1.5789
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/fold-alloca-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1