Code

Add basic PGO support.#48346

Code

Merged

bors merged 18 commits intorust-lang:masterrust-lang/rust:masterfrom emilio:pgoemilio/rust:pgoCopy head branch name to clipboardMar 26, 2018

+212-10

Commits

Commits on Mar 25, 2018

• profiler-builtins: define COMPILER_RT_HAS_UNAME on non-msvc platforms.

  Show description for e8a1575
  emilio

  committed
  e8a1575

• session: Add two tracked, exclusive codegen options for PGO profile usage and generation.

  Show description for 804f959
  emilio

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  804f959

• rustc_metadata: Load the profiler runtime if we're generating PGO profile data.

  Show description for 50a3872
  emilio

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  50a3872

• rustc_llvm: rustc_trans: Thread the PGO config down to the pass manager builder.

  Show description for 324ca7a
  emilio

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  324ca7a

• rustc_trans: disable probestack when using pgo-gen.

  Show description for 99127ab
  emilio

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  99127ab

• rustc_trans: Fix PGO generation linking on Linux by adding the relevant linker commands.

  Show description for 9c61c72
  emilio

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  9c61c72

• Test that pgo-gen works properly.

  Show description for e2183d3
  emilio

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  e2183d3

• profiler_builtins: Add missing ProfilingNameVar file to the profiler build.

  Show description for aaeb40a
  emilio

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  aaeb40a

• librustc_llvm: Show PGO diagnostics properly.

  Show description for a95c8c6
  emilio

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  a95c8c6

• librustc_trans: disable profiling pre-inlining.

  Show description for 036e0d7
  emilio

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  036e0d7

• librustc: Convert -C pgo-gen and -C pgo-use into -Z flags.

  Show description for 688275a
  emilio

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  688275a

• librustc_trans: Gate the preinliner with another -Z flag.

  Show description for e31addf
  emilio

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  e31addf

• librustc_trans: Turn PGO diagnostics into warnings.

  Show description for 8a4cebd
  emilio

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  8a4cebd

• librustc_trans: Mark some profiler symbols as exported to avoid LTO removing them.

  emilio

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  4053e25

• try to fix the build on older LLVM versions.

  emilio

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  e155ecd

• Move linker code to the Linker trait instead.

  emilio

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  96b8729

• pgo: Move the tests to run-make-fulldeps, and make the profile file be in the tmp directory properly.

  emilio

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  5af2f80

• pgo: Blindly try to fix Windows build.

  emilio

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  1e1d907