Enable unaligned loads on x86-64.
Commit Message
Hi, as I mentioned before in header optimization thread its now disabled
on x86-64 but on for x86.
So just enable that by copying generic bits/string.h header there.
OK to commit?
* sysdeps/x86_64/bits/string.h: New file.
Comments
On 05/28/2015 01:40 AM, Ondřej Bílka wrote:
> Hi, as I mentioned before in header optimization thread its now disabled
> on x86-64 but on for x86.
>
> So just enable that by copying generic bits/string.h header there.
>
> OK to commit?
Um... x86 is the shared directory for x86_64 and i386.
Is the existing header really not being found?
r~
On Thu, May 28, 2015 at 09:43:31AM -0700, Richard Henderson wrote:
> On 05/28/2015 01:40 AM, Ondřej Bílka wrote:
> > Hi, as I mentioned before in header optimization thread its now disabled
> > on x86-64 but on for x86.
> >
> > So just enable that by copying generic bits/string.h header there.
> >
> > OK to commit?
>
> Um... x86 is the shared directory for x86_64 and i386.
> Is the existing header really not being found?
>
Didn't see it. Now there is problem that provided assembly versions were
optimized for 486 and have terible performance in lines of current
strcmp builtin.
new file mode 100644
@@ -0,0 +1,14 @@
+/* This file should provide inline versions of string functions.
+
+ Surround GCC-specific parts with #ifdef __GNUC__, and use `__extern_inline'.
+
+ This file should define __STRING_INLINES if functions are actually defined
+ as inlines. */
+
+#ifndef _BITS_STRING_H
+#define _BITS_STRING_H 1
+
+/* On x86-64 we can access unaligned multi-byte variables. */
+#define _STRING_ARCH_unaligned 1
+
+#endif /* bits/string.h */