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Use REP MOVSQ/STOSQ on x86_64#365

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Merged

alexcrichton merged 10 commits intorust-lang:masterrust-lang/compiler-builtins:masterfrom josephlr:ermsbjosephlr/compiler-builtins:ermsbCopy head branch name to clipboardOct 24, 2020

+423-39

Commits

Commits on Oct 15, 2020

• mem: Move mem* functions to separate directory

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• memcpy: Create separate memcpy.rs file

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• benches: Add benchmarks for mem* functions

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• mem: Add REP MOVSB/STOSB implementations

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Commits on Oct 17, 2020

• mem: Add documentations for REP string insturctions

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• Use quad-word rep string instructions

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Commits on Oct 23, 2020

• Prevent panic when compiled in debug mode

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• Add tests for mem* functions

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Commits on Oct 24, 2020

• Add build/test with the "asm" feature

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• Add byte length to Bencher

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