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authorRich Kadel <richkadel@google.com>2020-12-07 17:41:53 -0800
committerRich Kadel <richkadel@google.com>2020-12-07 17:56:19 -0800
commit95c268f64d71427b00b46fde8fbf499d380e9409 (patch)
treea1b1f59b22bf6944a7cb50c634851e48f3425c22 /compiler/rustc_llvm/llvm-wrapper/CoverageMappingWrapper.cpp
parentb5ff9c3d052c2c3d5f26076362f38643f6e48680 (diff)
downloadrust-95c268f64d71427b00b46fde8fbf499d380e9409.tar.gz
rust-95c268f64d71427b00b46fde8fbf499d380e9409.zip
Fixes to Rust coverage
Fixes: #79725

Some macros can create a situation where `fn_sig_span` and `body_span`
map to different files.

New documentation on coverage tests incorrectly assumed multiple test
binaries could just be listed at the end of the `llvm-cov` command,
but it turns out each binary needs a `--object` prefix.

This PR fixes the bug and updates the documentation to correct that
issue. It also fixes a few other minor issues in internal implementation
comments, and adds documentation on getting coverage results for doc
tests.
Diffstat (limited to 'compiler/rustc_llvm/llvm-wrapper/CoverageMappingWrapper.cpp')
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