kc3-lang/libjpeg-turbo/simd

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• Hash : 74e6ea45
  Author :
  Date : 2021-01-05T20:23:11
  

  Neon: Fix Huffman enc. error w/Visual Studio+Clang
  
  The GNU builtin function __builtin_clzl() accepts an unsigned long
  argument, which is 8 bytes wide on LP64 systems (most Un*x systems,
  including Mac) but 4 bytes wide on LLP64 systems (Windows.)  This caused
  the Neon intrinsics implementation of Huffman encoding to produce
  mathematically incorrect results when compiled using Visual Studio with
  Clang.
  
  This commit changes all invocations of __builtin_clzl() in the Neon SIMD
  extensions to __builtin_clzll(), which accepts an unsigned long long
  argument that is guaranteed to be 8 bytes wide on all systems.
  
  Fixes #480
  Closes #490
  

• Files

• CMakeLists.txt
• arm/
• i386/
• jsimd.h
• mips/
• mips64/
• nasm/
• powerpc/
• x86_64/

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  Git SSH	git@git.kmx.io:kc3-lang/libjpeg-turbo.git
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