swr: [rasterizer] Backend code adjustments

Reviewed-by: Bruce Cherniak <[email protected]>

1 files changed, 9 insertions, 0 deletions

diff --git a/src/gallium/drivers/swr/rasterizer/common/simdintrin.h b/src/gallium/drivers/swr/rasterizer/common/simdintrin.h
index ea79902a002..562408db8db 100644
--- a/src/gallium/drivers/swr/rasterizer/common/simdintrin.h
+++ b/src/gallium/drivers/swr/rasterizer/common/simdintrin.h
@@ -660,6 +660,15 @@ simdscalar vMask(int32_t mask)
 }
 
 INLINE
+simdscalari vMaski(int32_t mask)
+{
+    __m256i vec = _mm256_set1_epi32(mask);
+    const __m256i bit = _mm256_set_epi32(0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01);
+    vec = _simd_and_si(vec, bit);
+    return _simd_cmplt_epi32(_mm256_setzero_si256(), vec);
+}
+
+INLINE
 void _simd_mov(simdscalar &r, unsigned int rlane, simdscalar& s, unsigned int slane)
 {
     OSALIGNSIMD(float) rArray[KNOB_SIMD_WIDTH], sArray[KNOB_SIMD_WIDTH];