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| author | Vedant Kumar <vsk@apple.com> | 2016-06-14 00:42:12 +0000 |
|---|---|---|
| committer | Vedant Kumar <vsk@apple.com> | 2016-06-14 00:42:12 +0000 |
| commit | f3300c9f7489fc6a42c78c16bf8fbed9ba84dcd1 (patch) | |
| tree | a7d5d36ca79b7acb1b94144c25e4f4995f05f99b /clang/docs/SourceBasedCodeCoverage.rst | |
| parent | 7d5a57cbfce1cb5567c7bc9c5c4c018eaf5cf392 (diff) | |
| download | bcm5719-llvm-f3300c9f7489fc6a42c78c16bf8fbed9ba84dcd1.tar.gz bcm5719-llvm-f3300c9f7489fc6a42c78c16bf8fbed9ba84dcd1.zip | |
[docs] Coverage: Document the profile merge pool specifier
llvm-svn: 272604
Diffstat (limited to 'clang/docs/SourceBasedCodeCoverage.rst')
| -rw-r--r-- | clang/docs/SourceBasedCodeCoverage.rst | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/clang/docs/SourceBasedCodeCoverage.rst b/clang/docs/SourceBasedCodeCoverage.rst index ff43c931ea2..95b2eb692ba 100644 --- a/clang/docs/SourceBasedCodeCoverage.rst +++ b/clang/docs/SourceBasedCodeCoverage.rst @@ -78,6 +78,14 @@ directory structure will be created. Additionally, the following special * "%h" expands out to the hostname of the machine running the program. +* "%Nm" expands out to the instrumented binary's signature. When this pattern + is specified, the runtime creates a pool of N raw profiles which are used for + on-line profile merging. The runtime takes care of selecting a raw profile + from the pool, locking it, and updating it before the program exits. If N is + not specified (i.e the pattern is "%m"), it's assumed that ``N = 1``. N must + be between 1 and 9. The merge pool specifier can only occur once per filename + pattern. + .. code-block:: console # Step 2: Run the program. |
