diff options
Diffstat (limited to 'llvm/lib/Analysis/BlockFrequencyInfo.cpp')
| -rw-r--r-- | llvm/lib/Analysis/BlockFrequencyInfo.cpp | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/llvm/lib/Analysis/BlockFrequencyInfo.cpp b/llvm/lib/Analysis/BlockFrequencyInfo.cpp index 2064be577f6..07a2a9229fd 100644 --- a/llvm/lib/Analysis/BlockFrequencyInfo.cpp +++ b/llvm/lib/Analysis/BlockFrequencyInfo.cpp @@ -55,7 +55,18 @@ cl::opt<unsigned> "function multiplied by this percent.")); // Command line option to turn on CFG dot dump after profile annotation. -cl::opt<bool> PGOViewCounts("pgo-view-counts", cl::init(false), cl::Hidden); +cl::opt<bool> + PGOViewCounts("pgo-view-counts", cl::init(false), cl::Hidden, + cl::desc("A boolean option to show CFG dag with " + "block profile counts and branch probabilities " + "right after PGO profile annotation step. The " + "profile counts are computed using branch " + "probabilities from the runtime profile data and " + "block frequency propagation algorithm. To view " + "the raw counts from the profile, use option " + "-pgo-view-raw-counts instead. To limit graph " + "display to only one function, use filtering option " + "-view-bfi-func-name.")); namespace llvm { |
