gcc/gcc ChangeLog Makefile.in expr.c fold-cons ...

[bonzini@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	bonzini@gcc.gnu.org	2005-05-17 09:55:45

Modified files:
	gcc            : ChangeLog Makefile.in expr.c fold-const.c 
	                 tree-optimize.c tree-pass.h 
	gcc/doc        : passes.texi 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.dg: fold-div-1.c 
	gcc/testsuite/gcc.dg/tree-ssa: recip-1.c recip-2.c 

Log message:
	gcc:
	2005-05-17  Paolo Bonzini  <bonzini@gnu.org>
	
	* Makefile.in: Add tree-ssa-math-opts.c.
	* expr.c (expand_expr_real_1) <case RDIV_EXPR>: Never emit as a*(1/b).
	* fold-const.c (distribute_real_division): New.
	(fold_binary) <case PLUS_EXPR, case MINUS_EXPR>: Use it.
	* tree-pass.h (pass_cse_reciprocals): New.
	* tree-optimize.c (init_tree_optimization_passes): Run it.
	* tree-ssa-math-opts.c: New file.
	* doc/passes.texi: Document the new pass.
	
	gcc/testsuite:
	2005-05-17  Paolo Bonzini  <bonzini@gnu.org>
	
	* gcc.dg/fold-div-1.c, gcc.dg/recip-1.c, gcc.dg/recip-2.c: New.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.8815&r2=2.8816
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/Makefile.in.diff?cvsroot=gcc&r1=1.1485&r2=1.1486
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/expr.c.diff?cvsroot=gcc&r1=1.789&r2=1.790
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fold-const.c.diff?cvsroot=gcc&r1=1.580&r2=1.581
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-optimize.c.diff?cvsroot=gcc&r1=2.95&r2=2.96
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/tree-pass.h.diff?cvsroot=gcc&r1=2.34&r2=2.35
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/doc/passes.texi.diff?cvsroot=gcc&r1=1.53&r2=1.54
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5483&r2=1.5484
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/fold-div-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/recip-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/recip-2.c.diff?cvsroot=gcc&r1=NONE&r2=1.1