Commit: 6f48bfc7a872c106e631cda0e23d2f61d6d944d2
Author: Sergey Sharybin
Date: Wed Nov 21 13:51:18 2018 +0100
Branches: master
https://developer.blender.org/rB6f48bfc7a872c106e631cda0e23d2f61d6d944d2
Cycles: Cleanup, use utility function
Replaces inlined platform-specific code.
===================================================================
M intern/cycles/kernel/geom/geom_triangle_intersect.h
===================================================================
diff --git a/intern/cycles/kernel/geom/geom_triangle_intersect.h
b/intern/cycles/kernel/geom/geom_triangle_intersect.h
index 558f08205a2..fa686d8a223 100644
--- a/intern/cycles/kernel/geom/geom_triangle_intersect.h
+++ b/intern/cycles/kernel/geom/geom_triangle_intersect.h
@@ -234,12 +234,7 @@ ccl_device_inline int ray_triangle_intersect8(
if((mask_final & prim_num_mask) == 0) {
return false;
}
- unsigned long i = 0;
-#if defined(_MSC_VER)
- unsigned char res = _BitScanForward(&i, (unsigned
long)mask_final);
-#else
- i = __builtin_ffs(mask_final)-1;
-#endif
+ const int i = __bsf(mask_final);
__m256 inv_den_256 = _mm256_rcp_ps(den_256);
U_256 = _mm256_mul_ps(U_256, inv_den_256);
V_256 = _mm256_mul_ps(V_256, inv_den_256);
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