return error(instrprof_error::truncated);
if ((Line++)->getAsInteger(10, NumCounters))
return error(instrprof_error::malformed);
+ if (NumCounters == 0)
+ return error(instrprof_error::malformed);
// Read each counter and fill our internal storage with the values.
Counts.clear();
// Get the raw data.
StringRef RawName(getName(Data->NamePtr), swap(Data->NameSize));
- auto RawCounts = makeArrayRef(getCounter(Data->CounterPtr),
- swap(Data->NumCounters));
+ uint32_t NumCounters = swap(Data->NumCounters);
+ if (NumCounters == 0)
+ return error(instrprof_error::malformed);
+ auto RawCounts = makeArrayRef(getCounter(Data->CounterPtr), NumCounters);
// Check bounds.
auto *NamesStartAsCounter = reinterpret_cast<const uint64_t *>(NamesStart);
RUN: not llvm-profdata show %p/Inputs/bad-hash.profdata 2>&1 | FileCheck %s --check-prefix=BAD-HASH
RUN: not llvm-profdata merge %p/Inputs/bad-hash.profdata %p/Inputs/bad-hash.profdata -o %t.out 2>&1 | FileCheck %s --check-prefix=BAD-HASH
BAD-HASH: error: {{.*}}bad-hash.profdata: Malformed profile data
+
+RUN: not llvm-profdata show %p/Inputs/no-counts.profdata 2>&1 | FileCheck %s --check-prefix=NO-COUNTS
+NO-COUNTS: error: {{.*}}no-counts.profdata: Malformed profile data
Func.Name.find(ShowFunction) != Func.Name.npos);
++TotalFunctions;
+ assert(Func.Counts.size() > 0 && "function missing entry counter");
if (Func.Counts[0] > MaxFunctionCount)
MaxFunctionCount = Func.Counts[0];