On Mon, Jul 1, 2013 at 8:01 PM, Sriraman Tallam <tmsri...@google.com> wrote:
> So, something like the patch attached?
>
> * config/i386/i386.c (ix86_option_override_internal): Turn
> on all -mavx target flags by default as they are dependent
> on AVX anyway.
Yes, but please also add:
Index: i386.c
===================================================================
--- i386.c (revision 200579)
+++ i386.c (working copy)
@@ -2578,7 +2578,7 @@ static const char *const cpu_names[TARGET_CPU_DEFA
static bool
gate_insert_vzeroupper (void)
{
- return TARGET_VZEROUPPER;
+ return TARGET_AVX && TARGET_VZEROUPPER;
}
static unsigned int
so we won't trigger vzeroupper insertion pass for non-AVX targets.
Uros.
