I think David got rid of that limitation.
The related warning in compiler-rt does not reflect this:
PROF_WARN("%%m specifier can only be specified once at the end of %s.\n",
...);
Fixed the warning in r272685.
thanks,
vedant
> On Jun 13, 2016, at 8:13 PM, Sean Silva <chisophu...@gmail.com> wrote:
>
>
>
> On Mon, Jun 13, 2016 at 5:42 PM, Vedant Kumar via cfe-commits
> <cfe-commits@lists.llvm.org> wrote:
> Author: vedantk
> Date: Mon Jun 13 19:42:12 2016
> New Revision: 272604
>
> URL: http://llvm.org/viewvc/llvm-project?rev=272604&view=rev
> Log:
> [docs] Coverage: Document the profile merge pool specifier
>
> Modified:
> cfe/trunk/docs/SourceBasedCodeCoverage.rst
>
> Modified: cfe/trunk/docs/SourceBasedCodeCoverage.rst
> URL:
> http://llvm.org/viewvc/llvm-project/cfe/trunk/docs/SourceBasedCodeCoverage.rst?rev=272604&r1=272603&r2=272604&view=diff
> ==============================================================================
> --- cfe/trunk/docs/SourceBasedCodeCoverage.rst (original)
> +++ cfe/trunk/docs/SourceBasedCodeCoverage.rst Mon Jun 13 19:42:12 2016
> @@ -78,6 +78,14 @@ directory structure will be created. Ad
>
> * "%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.
>
> There's also a limitation on the position IIRC (has to be at end).
>
> -- Sean Silva
>
> +
> .. code-block:: console
>
> # Step 2: Run the program.
>
>
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