Looks good to me.
2011/6/18 Berg, Michael <michael.b...@amd.com>
> All: The attached file enables flag for support to toggle emit of the
> vzeroupper instruction on BD. In some instances performance enhances by
> not emitting the instructions, we currently emit the instruction by default
> to handle avoiding merge conflicts in the upper 128bits of ymm
> instructions. This can happen when transitioning between SSE and
> AVX/XOP/FMA instructions.****
>
> The flag is –CG:noavx_clear=on, and is off by default.****
>
>
> ****
>
> These changes pass the following:****
>
> a.) No compile time failure for x86 build.****
>
> b.) The gcc regression test suite on x86/Linux with no new
> failures. ****
>
> c.) The SPEC2006 test suite at with current AMD 1 copy config at
> both base and peak.****
>
> ** **
>
> m****
>
> ** **
>
>
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--
Regards,
Lai Jian-Xin
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