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Rollup of 10 pull requests #60091

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@Centril Centril commented Apr 18, 2019

Successful merges:

Failed merges:

r? @ghost

koalatux and others added 30 commits April 16, 2019 20:41
The documentation for `rchunks_exact` said it started at the beginning
of the slice, bit it actually starts at the end of the slice.

In addition, there were a couple of "of the slice of the slice"
duplicate phrases going on for `rchunks_exact` and `rchunks_exact_mut`.

This fixes rust-lang#60068.
…, r=wesleywiser

Implement event filtering for self-profiler.

This is a first sketch for event filtering in the self-profiler, something that we'll want in order to keep profiling overhead low in the common case. The PR contains the commits from rust-lang#59515 and, for the moment, is meant for performance testing.

r? @wesleywiser
implement specialized nth_back() for Bytes, Fuse and Enumerate

Hi,

After my first PR has been successfully merged, here is my second pull request :-)

Also this PR contains some specializations for the problem discussed in rust-lang#54054.
…lexcrichton

Add codegen test for PGO instrumentation.

This PR adds a codegen test that makes sure that LLVM actually generates instrumentation code when we enable PGO instrumentation in `rustc`.

The second commit updates a test case to the new commandline option syntax introduced in rust-lang#59874. Without the fix the test still works, but it confusingly creates a directory called `test.profraw`, which usually is the name of the _file_ where profiling data is collected.
Simplify the returning of a Result a bit
whitelist RTM x86 target cpu feature

This PR adds support for intels restricted transactional memory cpu feature. I mostly copied what was done for the [movbe](rust-lang#57999) feature.

rust-lang/stdarch#718
Point at try `?` on errors affecting the err match arm of the desugared code

Fix rust-lang#59980.
Fix small errors in docs for `rchunks_exact` and `rchunks_exact_mut`.

The documentation for `rchunks_exact` said it started at the beginning
of the slice, bit it actually starts at the end of the slice.

In addition, there were a couple of "of the slice of the slice"
duplicate phrases going on for `rchunks_exact` and `rchunks_exact_mut`.

This fixes rust-lang#60068.
@Centril Centril closed this Apr 18, 2019
@Centril Centril deleted the rollup-bmsklr9 branch April 18, 2019 19:41
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Your PR failed on Travis (raw log). Through arcane magic we have determined that the following fragments from the build log may contain information about the problem.

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@Centril Centril added the rollup A PR which is a rollup label Oct 24, 2019
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