optimization/8423

optimization/8423

[dnovillo]

The following reply was made to PR optimization/8423; it has been noted by GNATS.

From: dnovillo@gcc.gnu.org
To: gcc-gnats@gcc.gnu.org
Cc:  
Subject: optimization/8423
Date: 2 Nov 2002 22:58:54 -0000

 CVSROOT:	/cvs/gcc
 Module name:	gcc
 Changes by:	dnovillo@gcc.gnu.org	2002-11-02 14:58:54
 
 Modified files:
 	gcc/testsuite  : ChangeLog 
 Added files:
 	gcc/testsuite/gcc.c-torture/execute: builtin-constant.c 
 
 Log message:
 	PR optimization/8423
 	* gcc.c-torture/execute/builtin-constant.c: New test.
 
 Patches:
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.2196&r2=1.2197
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/builtin-constant.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
 

optimization/8423

[sayle]

The following reply was made to PR optimization/8423; it has been noted by GNATS.

From: sayle@gcc.gnu.org
To: gcc-gnats@gcc.gnu.org
Cc:  
Subject: optimization/8423
Date: 23 Jan 2003 02:57:26 -0000

 CVSROOT:	/cvs/gcc
 Module name:	gcc
 Changes by:	sayle@gcc.gnu.org	2003-01-23 02:57:26
 
 Modified files:
 	gcc            : ChangeLog cse.c simplify-rtx.c gcse.c 
 	                 builtins.c rtl.h toplev.c flags.h 
 
 Log message:
 	PR optimization/8423
 	* cse.c (fold_rtx): Only eliminate a CONSTANT_P_RTX to 1 when
 	its argument is constant, or 0 if !flag_gcse.
 	* simplify-rtx.c (simplify_rtx): Convert CONSTANT_P_RTX to 1
 	if it's argument is constant.
 	* gcse.c (want_to_gcse_p): Ignore CONSTANT_P_RTX nodes.
 	(hash_scan_set): Don't record CONSTANT_P_RTX expressions.
 	(do_local_cprop): Don't propagate CONSTANT_P_RTX constants.
 	* builtins.c (purge_builtin_constant_p): New function to force
 	instantiation of any remaining CONSTANT_P_RTX nodes.
 	* rtl.h (purge_builtin_constant_p): Prototype here.
 	* toplev.c (rest_of_compilation): Invoke purge_builtin_constant_p
 	pass after GCSE and before loop.
 	(flag_gcse): No longer static.
 	* flags.h (flag_gcse): Prototype here.
 
 Patches:
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=1.16446&r2=1.16447
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cse.c.diff?cvsroot=gcc&r1=1.246&r2=1.247
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/simplify-rtx.c.diff?cvsroot=gcc&r1=1.128&r2=1.129
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/gcse.c.diff?cvsroot=gcc&r1=1.227&r2=1.228
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/builtins.c.diff?cvsroot=gcc&r1=1.167&r2=1.168
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/rtl.h.diff?cvsroot=gcc&r1=1.380&r2=1.381
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/toplev.c.diff?cvsroot=gcc&r1=1.697&r2=1.698
 http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/flags.h.diff?cvsroot=gcc&r1=1.94&r2=1.95