[Mesa-stable] [Mesa-dev] [PATCH] swr/rast: fix invalid sign masks in avx512 simdlib code

Cherniak, Bruce bruce.cherniak at intel.com
Thu Jan 4 19:31:01 UTC 2018


Reviewed-by: Bruce Cherniak <bruce.cherniak at intel.com>

> On Jan 4, 2018, at 10:33 AM, Tim Rowley <timothy.o.rowley at intel.com> wrote:
> 
> Should be 0x80000000 instead of 0x8000000.
> 
> Cc: mesa-stable at lists.freedesktop.org
> ---
> src/gallium/drivers/swr/rasterizer/common/simdlib_128_avx512.inl | 2 +-
> src/gallium/drivers/swr/rasterizer/common/simdlib_256_avx512.inl | 2 +-
> src/gallium/drivers/swr/rasterizer/common/simdlib_512_avx512.inl | 2 +-
> 3 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/src/gallium/drivers/swr/rasterizer/common/simdlib_128_avx512.inl b/src/gallium/drivers/swr/rasterizer/common/simdlib_128_avx512.inl
> index 66e8309610..b70a7691e2 100644
> --- a/src/gallium/drivers/swr/rasterizer/common/simdlib_128_avx512.inl
> +++ b/src/gallium/drivers/swr/rasterizer/common/simdlib_128_avx512.inl
> @@ -270,7 +270,7 @@ static SIMDINLINE Float SIMDCALL mask_i32gather_ps(Float old, float const* p, In
> {
>     __mmask16 m = 0xf;
>     m = _mm512_mask_test_epi32_mask(m, _mm512_castps_si512(__conv(mask)),
> -                                _mm512_set1_epi32(0x8000000));
> +                                _mm512_set1_epi32(0x80000000));
>     return __conv(_mm512_mask_i32gather_ps(
>                     __conv(old),
>                     m,
> diff --git a/src/gallium/drivers/swr/rasterizer/common/simdlib_256_avx512.inl b/src/gallium/drivers/swr/rasterizer/common/simdlib_256_avx512.inl
> index 3f93cfbd7f..3fcfd250f9 100644
> --- a/src/gallium/drivers/swr/rasterizer/common/simdlib_256_avx512.inl
> +++ b/src/gallium/drivers/swr/rasterizer/common/simdlib_256_avx512.inl
> @@ -271,7 +271,7 @@ static SIMDINLINE Float SIMDCALL mask_i32gather_ps(Float old, float const* p, In
> {
>     __mmask16 m = 0xff;
>     m = _mm512_mask_test_epi32_mask(m, _mm512_castps_si512(__conv(mask)),
> -                                _mm512_set1_epi32(0x8000000));
> +                                _mm512_set1_epi32(0x80000000));
>     return __conv(_mm512_mask_i32gather_ps(
>                     __conv(old),
>                     m,
> diff --git a/src/gallium/drivers/swr/rasterizer/common/simdlib_512_avx512.inl b/src/gallium/drivers/swr/rasterizer/common/simdlib_512_avx512.inl
> index c13b9f616a..8de62f2a7e 100644
> --- a/src/gallium/drivers/swr/rasterizer/common/simdlib_512_avx512.inl
> +++ b/src/gallium/drivers/swr/rasterizer/common/simdlib_512_avx512.inl
> @@ -540,7 +540,7 @@ static SIMDINLINE uint32_t SIMDCALL movemask_pd(Double a)
> }
> static SIMDINLINE uint32_t SIMDCALL movemask_ps(Float a)
> {
> -    __mmask16 m = _mm512_test_epi32_mask(castps_si(a), set1_epi32(0x8000000));
> +    __mmask16 m = _mm512_test_epi32_mask(castps_si(a), set1_epi32(0x80000000));
>     return static_cast<uint32_t>(m);
> }
> 
> -- 
> 2.14.1
> 
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