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InstrProf: Optionally generate coverage maps when profiling

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This adds the -profile-coverage-mapping option to swift, and teaches
SILGenProfiling to generate mappings from source ranges to counters.

Swift SVN r25266
This commit is contained in:
Justin Bogner
2015-02-13 08:42:15 +00:00
parent 186f03346a
commit d44090d29e
13 changed files with 614 additions and 3 deletions
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4
include/swift/Option/Options.td
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@@ -379,4 +379,8 @@ def profile_generate : Flag<["-"], "profile-generate">,
Flags<[FrontendOption, NoInteractiveOption]>,
HelpText<"Generate instrumented code to collect execution counts">;
def profile_coverage_mapping : Flag<["-"], "profile-coverage-mapping">,
Flags<[FrontendOption, NoInteractiveOption]>,
HelpText<"Generate coverage data for use with profiled execution counts">;
include "FrontendOptions.td"