================
@@ -319,6 +319,29 @@ static cl::opt<unsigned> PGOFunctionCriticalEdgeThreshold(
cl::desc("Do not instrument functions with the number of critical edges "
" greater than this threshold."));
+static cl::opt<uint64_t> ColdFuncCoverageMaxEntryCount(
+ "cold-function-coverage-max-entry-count", cl::init(0), cl::Hidden,
+ cl::desc("When enabling cold function coverage instrumentation, skip "
+ "instrumenting the function whose entry count is above the given "
+ "value"));
+
+static cl::opt<InstrColdFuncCovMode> InstrumentColdFunctionCoverageMode(
+ "instrument-cold-function-coverage-mode",
+ cl::init(InstrColdFuncCovMode::Conservative), cl::Hidden,
+ cl::desc("Control whether to instrument unprofiled functions for cold "
+ "function coverage."),
+ cl::values(
+ clEnumValN(InstrColdFuncCovMode::Conservative, "conservative",
+ "Assume unprofiled functions are not cold, skip "
+ "instrumenting them."),
+ clEnumValN(InstrColdFuncCovMode::Optimistic, "optimistic",
+ "Treat unprofiled functions as cold and instrument
them.")));
+
+cl::opt<bool> InstrumentColdFunctionCoverage(
+ "instrument-cold-function-coverage", cl::init(false), cl::Hidden,
----------------
WenleiHe wrote:
We already have `pgo-function-entry-coverage` flag to ask for coverage. Ideally
we want flags to be orthogonal and not overlap. So how about
`pgo-instrument-cold-function-only` (add `pgo-` prefix to be consistent)?
https://github.com/llvm/llvm-project/pull/109837
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