[Bug optimization/13724] Bad code generated for unsigned int -> long long multiplication

Fri Jan 23 02:03:00 GMT 2004

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2004-01-23 02:03 -------
Subject: Bug 13724

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	sayle@gcc.gnu.org	2004-01-23 02:03:26

Modified files:
	gcc            : ChangeLog cse.c 

Log message:
	2004-01-22  Paolo Bonzini  <bonzini@gnu.org>
	
	PR optimization/13724
	* cse.c (fold_rtx) <SUBREG>:  Fold a SUBREG to zero if it
	represents the zero bits produced by a ZERO_EXTEND operation.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/ChangeLog.diff?cvsroot=gcc&r1=2.2424&r2=2.2425
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/gcc/cse.c.diff?cvsroot=gcc&r1=1.279&r2=1.280


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=13724