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Fix has_cpuid implementation#492

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gnzlbg merged 11 commits intorust-lang:masterrust-lang/stdarch:masterfrom

gnzlbg:fix_has_cpuidgnzlbg/stdsimd:fix_has_cpuidCopy head branch name to clipboard

Jun 25, 2018

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Commits on Jun 23, 2018

• Fixes has_cpuid implementation

  Show description for 7f12738
  gnzlbg

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  7f12738

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• use inline assembly instead of the __{read,write}eflags intrinsics

  gnzlbg

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  a374f60

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• fix has_cpuid_test

  gnzlbg

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  f87c949

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• fix test and add comments

  gnzlbg

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  5760ad3

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• no need to save/restore ecx in the inline assembly because its already clobbered

  gnzlbg

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  b12aef6

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• fix the shift

  gnzlbg

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  277a49a

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Commits on Jun 24, 2018

• Use Stephen Checkoway solution

  gnzlbg

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  3605ad3

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• remove unnecessary shift

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  c70093b

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• remove unnecesary unsafe block

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  6ee5955

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• use and to test the 21st bit

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  9f9427e

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• hoist the and out of the inline assembly

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  1831237

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