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Optimize matches#60730

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bors merged 7 commits intorust-lang:masterrust-lang/rust:masterfrom

matthewjasper:optimize-false-edgesmatthewjasper/rust:optimize-false-edgesCopy head branch name to clipboard

Jun 16, 2019

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Commits on Jun 12, 2019

• Make `FalseEdges` always have two targets

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• Avoid unnecessary false edges in MIR match lowering

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Commits on Jun 13, 2019

• Create fewer basic blocks in match MIR lowering

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• Call str::eq and <[T]>::eq for match comparisons

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• Generate MIR thats easier for llvm for str matches

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• Add some more comments on how TestKind works

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• Add a test for simple matches

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