[Bug middle-end/19857] [4.0 Regression] alignment check of SSE constant fails in simple test program

[cvs-commit at gcc dot gnu dot org]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-02-16 13:54 -------
Subject: Bug 19857

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	jakub@gcc.gnu.org	2005-02-16 13:54:31

Modified files:
	gcc            : ChangeLog convert.c fold-const.c 
	gcc/testsuite  : ChangeLog 
Added files:
	gcc/testsuite/gcc.c-torture/execute: 20050215-1.c 
	gcc/testsuite/gcc.dg/tree-ssa: 20050215-1.c 

Log message:
	PR middle-end/19857
	* fold-const.c (fold): Don't optimize (T)(x & cst) to
	(T)x & (T)cst if (T)cst overflows.
	* convert.c (convert_to_integer) <case POINTER_TYPE>: Pass
	TYPE_UNSIGNED (type) as type_for_size's UNSIGNEDP argument.
	
	* gcc.dg/tree-ssa/20050215-1.c: New test.
	* gcc.c-torture/execute/20050215-1.c: New test.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.7491&r2=2.7492
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/convert.c.diff?cvsroot=gcc&r1=1.54&r2=1.55
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/fold-const.c.diff?cvsroot=gcc&r1=1.512&r2=1.513
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/ChangeLog.diff?cvsroot=gcc&r1=1.5039&r2=1.5040
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.c-torture/execute/20050215-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/testsuite/gcc.dg/tree-ssa/20050215-1.c.diff?cvsroot=gcc&r1=NONE&r2=1.1



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=19857