gcc/gcc ChangeLog combine.c defaults.h fold-co ...

[rth@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	rth@gcc.gnu.org	2003-02-05 22:37:54

Modified files:
	gcc            : ChangeLog combine.c defaults.h fold-const.c 
	                 simplify-rtx.c 
	gcc/config/alpha: alpha.h 
	gcc/config/arm : arm-protos.h arm.c arm.h arm.md 
	gcc/doc        : rtl.texi tm.texi 

Log message:
	* defaults.h (CLZ_DEFINED_VALUE_AT_ZERO): New.
	(CTZ_DEFINED_VALUE_AT_ZERO): New.
	* doc/rtl.texi, doc/tm.texi: Document them.
	
	* combine.c (nonzero_bits) [CLZ, CTZ]: Handle the definedness
	of the value at zero properly.
	* fold-const.c (tree_expr_nonnegative_p): Likewise.
	* simplify-rtx.c (simplify_unary_operation): Likewise.
	
	* config/alpha/alpha.h (CLZ_DEFINED_VALUE_AT_ZERO): New.
	(CTZ_DEFINED_VALUE_AT_ZERO): New.
	
	* config/arm/arm.c (TARGET_INIT_BUILTINS): Remove.
	(TARGET_EXPAND_BUILTIN): Remove.
	(def_builtin, arm_init_builtins, arm_expand_builtin): Remove.
	* config/arm/arm.h (CLZ_DEFINED_VALUE_AT_ZERO): New.
	(enum arm_builtins): Remove.
	* config/arm/arm.md (UNSPEC_CLZ): Remove.
	(clzsi2): Rename from clz; use clz instead of unspec.
	(ctzsi2): New.
	* config/arm/arm-protos.h: Update.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=1.16632&r2=1.16633
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/combine.c.diff?cvsroot=gcc&r1=1.335&r2=1.336
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/defaults.h.diff?cvsroot=gcc&r1=1.101&r2=1.102
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fold-const.c.diff?cvsroot=gcc&r1=1.233&r2=1.234
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/simplify-rtx.c.diff?cvsroot=gcc&r1=1.133&r2=1.134
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/alpha/alpha.h.diff?cvsroot=gcc&r1=1.191&r2=1.192
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/arm/arm-protos.h.diff?cvsroot=gcc&r1=1.46&r2=1.47
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/arm/arm.c.diff?cvsroot=gcc&r1=1.256&r2=1.257
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/arm/arm.h.diff?cvsroot=gcc&r1=1.180&r2=1.181
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/config/arm/arm.md.diff?cvsroot=gcc&r1=1.117&r2=1.118
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/doc/rtl.texi.diff?cvsroot=gcc&r1=1.47&r2=1.48
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/doc/tm.texi.diff?cvsroot=gcc&r1=1.198&r2=1.199