On Mon, Dec 12, 2011 at 02:16:04PM +0200, Ira Rosen wrote: > Michael Zolotukhin <michael.v.zolotuk...@gmail.com> wrote on 12/12/2011 > 01:57:09 PM: > > > > > By the way, how could we check if '-mprefer-avx128' was specified from > > target-supports.exp? > > > > If I understand your question correctly, you can use check-flags (see > check_effective_target_arm_fp16_ok_nocache for example).
The problem is that -mprefer-avx128/-mno-prefer-avx128 has a default determined by -march/-mtune, some CPU tuning turn on -mprefer-avx128 by default. Jakub