kc3-lang/libjpeg-turbo/simd

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• Hash : d5f281b7
  Author :
  Date : 2018-09-28T15:46:35
  

  SIMD: Fix c000001d exception on Win 7 w/o SP1
  
  Apparently Windows 7 without SP1 has O/S support for XSAVE but not for
  YMM registers, and this exposed a bug in our usage of xgetbv.  The test
  instruction will set ZF only if none of the bits match between the two
  operarands, so in effect, we were enabling AVX2 instructions if the O/S
  supported XSAVE and the CPU supported AVX2 but the O/S only supported
  XMM registers.  This bug was not exposed on, for instance, Windows XP or
  RHEL 5 because those O/S's do not support XSAVE.
  
  Fixes #288
  

• Files

• CMakeLists.txt
• arm/
• arm64/
• gas-preprocessor.in
• i386/
• jsimd.h
• loongson/
• mips/
• nasm/
• powerpc/
• x86_64/

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