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Rollup of 5 pull requests#61155

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Centril wants to merge 22 commits intorust-lang:masterrust-lang/rust:masterfrom Centril:rollup-rh5cd2yCentril/rust:rollup-rh5cd2yCopy head branch name to clipboard

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Commits on May 22, 2019

• Use a PathBuf instead of String for representing the pgo-use path internally.

  michaelwoerister

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• PGO: Check that pgo-use file actually exists. LLVM seems to only emit an easy-to-overlook warning otherwise.

  michaelwoerister

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  01a59a3

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• rustbuild: Also build compiler-rt when building LLDB. This allows clang-based run-make tests to use PGO.

  michaelwoerister

  committed
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• Add a smoketest for combining PGO with xLTO.

  michaelwoerister

  committed
  51463d0

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• Fix unit test after pgo-use change.

  michaelwoerister

  committed
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Commits on May 23, 2019

• Ship profiler with windows-gnu

  mati865

  committed
  1a35a1c

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• Avoid interning in resolve_place_op.

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  nnethercote

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Commits on May 24, 2019

• Avoid unnecessary internings.

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  nnethercote

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  f9c4a90

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• Pass symbols to ExtCtxt::std_path instead of strings.

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  nnethercote

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• Pre-intern "0", "1", ..., "9", and use where appropriate.

  nnethercote

  committed
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• Add ty_to_symbol methods.

  nnethercote

  committed
  eb962c2

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• Avoid some re-interning in to_lit_token.

  nnethercote

  committed
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• Use Symbol equality in is_ident_named.

  nnethercote

  committed
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• Use Symbol equality in check_ident_token.

  nnethercote

  committed
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• Use Symbol equality in may_begin_with and parse_nt.

  nnethercote

  committed
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• Don't arena-allocate static symbols.

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  nnethercote

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Commits on May 25, 2019

• Fix spelling in release notes

  aristocles-deploy

  committed
  fd19989

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• Rollup merge of rust-lang#61035 - nnethercote:avoid-more-symbol-interning, r=petrochenkov

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  Centril

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• Rollup merge of rust-lang#61036 - michaelwoerister:pgo-xlto-test, r=alexcrichton

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  Centril

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• Rollup merge of rust-lang#61077 - nnethercote:tweak-prefill, r=petrochenkov

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  Centril

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• Rollup merge of rust-lang#61080 - mati865:mingw_pgo, r=sanxiyn

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  Centril

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• Rollup merge of rust-lang#61149 - vishalsodani:master, r=Centril

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  Centril

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