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[2/2] i386: Assume Skylake for unknown models with clflushopt

Message ID 20170616214249.21194-2-mattst88@gmail.com
State New
Headers show

Commit Message

Matt Turner June 16, 2017, 9:42 p.m. UTC 
gcc/
	* config/i386/driver-i386.c (host_detect_local_cpu): Assume
	skylake for unknown models with clflushopt.
---
 gcc/config/i386/driver-i386.c | 3 +++
 1 file changed, 3 insertions(+)

Comments

Uros Bizjak June 18, 2017, 5:57 p.m. UTC | #1 
On Fri, Jun 16, 2017 at 11:42 PM, Matt Turner <mattst88@gmail.com> wrote:
> gcc/
>         * config/i386/driver-i386.c (host_detect_local_cpu): Assume
>         skylake for unknown models with clflushopt.

Also OK.

Thanks,
Uros.

> ---
>  gcc/config/i386/driver-i386.c | 3 +++
>  1 file changed, 3 insertions(+)
>
> diff --git a/gcc/config/i386/driver-i386.c b/gcc/config/i386/driver-i386.c
> index 09faad0af0e..570c49031bd 100644
> --- a/gcc/config/i386/driver-i386.c
> +++ b/gcc/config/i386/driver-i386.c
> @@ -797,6 +797,9 @@ const char *host_detect_local_cpu (int argc, const char **argv)
>               /* Assume Knights Landing.  */
>               if (has_avx512f)
>                 cpu = "knl";
> +             /* Assume Skylake.  */
> +             else if (has_clflushopt)
> +               cpu = "skylake";
>               /* Assume Broadwell.  */
>               else if (has_adx)
>                 cpu = "broadwell";
> --
> 2.13.0
>
diff mbox

Patch

diff --git a/gcc/config/i386/driver-i386.c b/gcc/config/i386/driver-i386.c
index 09faad0af0e..570c49031bd 100644
--- a/gcc/config/i386/driver-i386.c
+++ b/gcc/config/i386/driver-i386.c
@@ -797,6 +797,9 @@  const char *host_detect_local_cpu (int argc, const char **argv)
 	      /* Assume Knights Landing.  */
 	      if (has_avx512f)
 		cpu = "knl";
+	      /* Assume Skylake.  */
+	      else if (has_clflushopt)
+		cpu = "skylake";
 	      /* Assume Broadwell.  */
 	      else if (has_adx)
 		cpu = "broadwell";