src/llvm-project/llvm/test/tools/llvm-profdata/malformed-num-counters-zero.test

// Header
//
// INSTR_PROF_RAW_HEADER(uint64_t, Magic, __llvm_profile_get_magic())
// INSTR_PROF_RAW_HEADER(uint64_t, Version, __llvm_profile_get_version())
// INSTR_PROF_RAW_HEADER(uint64_t, BinaryIdsSize, __llvm_write_binary_ids(NULL))
// INSTR_PROF_RAW_HEADER(uint64_t, DataSize, DataSize)
// INSTR_PROF_RAW_HEADER(uint64_t, CountersSize, CountersSize)
// INSTR_PROF_RAW_HEADER(uint64_t, NumBitmaskBytes, NumBitmaskBytes)
// INSTR_PROF_RAW_HEADER(uint64_t, NamesSize,  NamesSize)
// INSTR_PROF_RAW_HEADER(uint64_t, CountersDelta, (uintptr_t)CountersBegin)
// INSTR_PROF_RAW_HEADER(uint64_t, BitmaskDelta, (uintptr_t)BitmaskBegin)
// INSTR_PROF_RAW_HEADER(uint64_t, NamesDelta, (uintptr_t)NamesBegin)
// INSTR_PROF_RAW_HEADER(uint64_t, ValueKindLast, IPVK_Last)

RUN: printf '\201rforpl\377' > %t.profraw
RUN: printf '\11\0\0\0\0\0\0\0' >> %t.profraw
RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
RUN: printf '\1\0\0\0\0\0\0\0' >> %t.profraw
RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
RUN: printf '\1\0\0\0\0\0\0\0' >> %t.profraw
RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
RUN: printf '\10\0\0\0\0\0\0\0' >> %t.profraw
RUN: printf '\0\0\4\0\1\0\0\0' >> %t.profraw
RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
RUN: printf '\0\0\4\0\2\0\0\0' >> %t.profraw
RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw

// Data Section
//
// struct ProfData {
// #define INSTR_PROF_DATA(Type, LLVMType, Name, Initializer) \
//    Type Name;
// #include "llvm/ProfileData/InstrProfData.inc"
// };

RUN: printf '\254\275\030\333\114\302\370\134' >> %t.profraw
RUN: printf '\1\0\0\0\0\0\0\0' >> %t.profraw
RUN: printf '\0\0\4\0\1\0\0\0' >> %t.profraw
RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw

// Make two copies for another test.
RUN: cp %t.profraw %t-bad.profraw
RUN: cp %t.profraw %t-good.profraw

// Make NumCounters = 0 so that we get "number of counters is zero" error message
RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw

RUN: printf '\023\0\0\0\0\0\0\0' >> %t.profraw
RUN: printf '\3\0foo\0\0\0' >> %t.profraw

RUN: not llvm-profdata show %t.profraw 2>&1 | FileCheck %s --check-prefix=ZERO
ZERO: malformed instrumentation profile data: number of counters is zero

// Test a counter value greater than 2^56.
RUN: printf '\1\0\0\0\0\0\0\0' >> %t-bad.profraw
RUN: printf '\0\0\0\0\0\0\0\0' >> %t-bad.profraw
// Counter value is 72057594037927937
RUN: printf '\1\0\0\0\0\0\0\1' >> %t-bad.profraw
RUN: printf '\3\0foo\0\0\0' >> %t-bad.profraw

RUN: printf '\1\0\0\0\0\0\0\0' >> %t-good.profraw
RUN: printf '\0\0\0\0\0\0\0\0' >> %t-good.profraw
// Counter value is 72057594037927937
RUN: printf '\1\0\0\0\0\0\0\0' >> %t-good.profraw
RUN: printf '\3\0foo\0\0\0' >> %t-good.profraw

// llvm-profdata fails if there is a warning for any input file under default failure mode (any).
RUN: not llvm-profdata merge %t-bad.profraw %t-good.profraw -o %t.profdata 2>&1 | FileCheck %s --check-prefix=ANY
ANY: {{.*}} excessively large counter value suggests corrupted profile data: 72057594037927937

// -failure-mode=all only fails if there is a warning for every input file.
RUN: not llvm-profdata merge %t-bad.profraw -failure-mode=all -o %t.profdata 2>&1 | FileCheck %s --check-prefix=ALL-ERR
ALL-ERR: {{.*}} excessively large counter value suggests corrupted profile data: 72057594037927937

RUN: llvm-profdata merge %t-bad.profraw %t-good.profraw -failure-mode=all -o %t.profdata 2>&1 | FileCheck %s --check-prefix=ALL-WARN
ALL-WARN: {{.*}} excessively large counter value suggests corrupted profile data: 72057594037927937

// -failure-mode=warn does not fail at all. It only prints warnings.
RUN: llvm-profdata merge %t-bad.profraw -failure-mode=warn -o %t.profdata 2>&1 | FileCheck %s --check-prefix=WARN
WARN: {{.*}} excessively large counter value suggests corrupted profile data: 72057594037927937