This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug target/59968] Unused BT patterns
- From: "hjl.tools at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 28 Jan 2014 16:18:04 +0000
- Subject: [Bug target/59968] Unused BT patterns
- Auto-submitted: auto-generated
- References: <bug-59968-4 at http dot gcc dot gnu dot org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59968
H.J. Lu <hjl.tools at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |areg.melikadamyan at gmail dot com
| |, kirill.yukhin at intel dot com
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
For
int bar1;
void
__attribute__((noinline))
foo1 (int y)
{
bar1 |= 1 << y;
}
we generate:
movl $1, %eax
movl %edi, %ecx
sall %cl, %eax
orl %eax, bar1(%rip)
ret
I am expecting:
bts %edi, bar1(%rip)
ret