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| author | Diego Novillo <dnovillo@google.com> | 2015-05-22 16:05:07 +0000 |
|---|---|---|
| committer | Diego Novillo <dnovillo@google.com> | 2015-05-22 16:05:07 +0000 |
| commit | e0d289efbdbd918a9fd3e685b14ef48f0c8f28bd (patch) | |
| tree | f076bee8ec331b991c751075fff03d77f8f34db4 /clang/docs/UsersManual.rst | |
| parent | 91d8cfd6989e52c9b979652b1d367e1e9c9ff39a (diff) | |
| download | bcm5719-llvm-e0d289efbdbd918a9fd3e685b14ef48f0c8f28bd.tar.gz bcm5719-llvm-e0d289efbdbd918a9fd3e685b14ef48f0c8f28bd.zip | |
Add clarifying note that sampling-based profiles cannot be used for code coverage.
llvm-svn: 238031
Diffstat (limited to 'clang/docs/UsersManual.rst')
| -rw-r--r-- | clang/docs/UsersManual.rst | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/clang/docs/UsersManual.rst b/clang/docs/UsersManual.rst index 50d5d019255..2a6fc82a90d 100644 --- a/clang/docs/UsersManual.rst +++ b/clang/docs/UsersManual.rst @@ -1290,6 +1290,10 @@ If you are not using Linux Perf to collect profiles, you will need to write a conversion tool from your profiler to LLVM's format. This section explains the file format expected by the backend. +NOTE: This format is not intended to be used for code coverage. For that, +you need to use Clang's instrumentation based profiling +(``-fprofile-instr-generate``). + Sample profiles are written as ASCII text. The file is divided into sections, which correspond to each of the functions executed at runtime. Each section has the following format (taken from |
