PATCH: PR target/44844: Wrong _rdrand_uXX intrinsic implementation

[Uros Bizjak]

On Tue, Jul 6, 2010 at 7:46 PM, H.J. Lu <hongjiu.lu@intel.com> wrote:

> This patch adds a loop to rdrand<mode> to check if the carry flag is
> valid as specified by RDRAND spec.  Tested on Linux/x86-64.  OK to
> install?

> gcc/
>
> 2010-07-06  H.J. Lu  <hongjiu.lu@intel.com>
>
>        PR target/44844
>        * config/i386/i386.md (rdrand<mode>): Changed to expand to
>        retry if the carry flag isn't valid.
>        (rdrand<mode>_1): New.
>
> gcc/testsuite/
>
> 2010-07-06  H.J. Lu  <hongjiu.lu@intel.com>
>
>        PR target/44844
>        * gcc.target/i386/rdrand-1.c: Scan "jnc".
>        * gcc.target/i386/rdrand-2.c: Likewise.
>        * gcc.target/i386/rdrand-3.c: Likewise.

OK for mainline.

Thanks,
Uros.