Thread: Avisynth+
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Old 12th January 2018, 15:41   #3860  |  Link
pinterf
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Join Date: Jan 2014
Posts: 2,309
Quote:
Originally Posted by pinterf View Post
Don't know if vmovntdqa reg,reg is valid or not but it seems to be not. The crash occurs in merge_avx2:

Code:
      00070	8d 40 20	 lea	 eax, DWORD PTR [eax+32]

      ; 70   :       __m256i src1  = _mm256_stream_load_si256(reinterpret_cast<__m256i*>(p1+x));

      00073	c5 fe 6f 40 e0	 vmovdqu ymm0, YMMWORD PTR [eax-32]
      00078	c4 e2 7d 2a c8	 vmovntdqa ymm1, ymm0            ****CRASH HERE! ILLEGAL INSTRUCTION VS15.5.1!!!****

      ; 71   :       __m256i src2  = _mm256_stream_load_si256(const_cast<__m256i*>(reinterpret_cast<const __m256i*>(p2+x)));
      0007d	c5 fe 6f 44 02 e0		 vmovdqu ymm0, YMMWORD PTR [edx+eax-32]
      00083	c4 e2 7d 2a c0	 vmovntdqa ymm0, ymm0
Will update to 15.5.2 and see what happens.

EDIT:
With VS 15.5.2 the code still fails. Replaced stream_load with normal load, it's O.K.
Two weeks ago I have reported it and made a minimal project for MS which still exhibited the problem. And they fixed. One less bug.
https://developercommunity.visualstu...tream-loa.html
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