gcc/gcc ChangeLog expr.c simplify-rtx.c testsu ...

[jakub@gcc.gnu.org]

CVSROOT:	/cvs/gcc
Module name:	gcc
Branch: 	gcc-3_4-rhl-branch
Changes by:	jakub@gcc.gnu.org	2004-08-16 16:42:16

Modified files:
	gcc            : ChangeLog expr.c simplify-rtx.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.c-torture/execute: 20040629-1.c 20040705-1.c 
	                                     20040705-2.c 20040709-1.c 
	                                     20040709-2.c 

Log message:
	2004-07-09  Jakub Jelinek  <jakub@redhat.com>
	
	* expr.c (expand_assignment): Reenable bitfield += optimizations.
	Use alias set 0 for memory, do proper mode calculations and adjust
	address for memories.
	
	* gcc.c-torture/execute/20040709-1.c: New test.
	* gcc.c-torture/execute/20040709-2.c: New test.
	
	2004-07-05  Jakub Jelinek  <jakub@redhat.com>
	
	* expr.c (expand_assignment): Disable the bitfield += optimizations.
	
	* gcc.c-torture/execute/20040629-1.c (FIELDS1, FIELDS2): Define to
	nothing if not yet defined.  Use it in b, c and d type definitions.
	* gcc.c-torture/execute/20040705-1.c: New test.
	* gcc.c-torture/execute/20040705-2.c: New test.
	
	2004-07-01  Jakub Jelinek  <jakub@redhat.com>
	
	* expr.c (expand_assignment): Optimize bitfld += cst for 1 bit
	bitfields as well.  STRIP_NOPS from src operand and PLUS_EXPR's
	first operand.  Don't optimize if the bitfield is volatile.
	
	2004-06-29  Jakub Jelinek  <jakub@redhat.com>
	
	* simplify-rtx.c (simplify_binary_operation): Simplify
	((A & N) + B) & M -> (A + B) & M if M is pow2 minus 1 constant and
	N has at least all bits in M set as well.
	
	PR tree-optimization/15310
	* expr.c (expand_assignment): Optimize += or -= on a bit field in
	most significant bits.
	
	* gcc.c-torture/execute/20040629-1.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=2.2326.2.399.2.26&r2=2.2326.2.399.2.27
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/expr.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=1.615.4.11.2.2&r2=1.615.4.11.2.3
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/simplify-rtx.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=1.172.4.1.2.1&r2=1.172.4.1.2.2
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=1.3389.2.170.2.13&r2=1.3389.2.170.2.14
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20040629-1.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=NONE&r2=1.2.14.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20040705-1.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=NONE&r2=1.1.14.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20040705-2.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=NONE&r2=1.1.14.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20040709-1.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=NONE&r2=1.1.12.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20040709-2.c.diff?cvsroot=gcc&only_with_tag=gcc-3_4-rhl-branch&r1=NONE&r2=1.1.12.1