This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug rtl-optimization/17935] [4.0 Regression] Two consecutive movzbl are generated
- From: "pinskia at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 11 Oct 2004 17:24:45 -0000
- Subject: [Bug rtl-optimization/17935] [4.0 Regression] Two consecutive movzbl are generated
- References: <20041011163842.17935.kazu@cs.umass.edu>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Additional Comments From pinskia at gcc dot gnu dot org 2004-10-11 17:24 -------
Confirmed, this is 4.0 Regression again.
3.4.0 gives:
bar:
movl 4(%esp), %eax
xorl %edx, %edx
testb $1, (%eax)
jne .L2
movl 8(%esp), %ecx
testb $1, (%ecx)
jne .L2
movb $1, %dl
.p2align 2,,3
.L2:
movzbl %dl, %eax
ret
--
What |Removed |Added
----------------------------------------------------------------------------
Severity|enhancement |minor
Status|UNCONFIRMED |NEW
Ever Confirmed| |1
Known to fail| |4.0.0
Known to work| |3.4.0
Last reconfirmed|0000-00-00 00:00:00 |2004-10-11 17:24:44
date| |
Summary|Two consecutive movzbl are |[4.0 Regression] Two
|generated |consecutive movzbl are
| |generated
Target Milestone|--- |4.0.0
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=17935