diff options
Diffstat (limited to 'contrib/llvm-project/compiler-rt/include/profile/InstrProfData.inc')
| -rw-r--r-- | contrib/llvm-project/compiler-rt/include/profile/InstrProfData.inc | 139 |
1 files changed, 124 insertions, 15 deletions
diff --git a/contrib/llvm-project/compiler-rt/include/profile/InstrProfData.inc b/contrib/llvm-project/compiler-rt/include/profile/InstrProfData.inc index a6913527e67f..f715505ba5e1 100644 --- a/contrib/llvm-project/compiler-rt/include/profile/InstrProfData.inc +++ b/contrib/llvm-project/compiler-rt/include/profile/InstrProfData.inc @@ -154,17 +154,7 @@ INSTR_PROF_RAW_HEADER(uint64_t, ValueKindLast, IPVK_Last) VALUE_PROF_FUNC_PARAM(uint64_t, TargetValue, Type::getInt64Ty(Ctx)) \ INSTR_PROF_COMMA VALUE_PROF_FUNC_PARAM(void *, Data, Type::getInt8PtrTy(Ctx)) INSTR_PROF_COMMA -#ifndef VALUE_RANGE_PROF VALUE_PROF_FUNC_PARAM(uint32_t, CounterIndex, Type::getInt32Ty(Ctx)) -#else /* VALUE_RANGE_PROF */ -VALUE_PROF_FUNC_PARAM(uint32_t, CounterIndex, Type::getInt32Ty(Ctx)) \ - INSTR_PROF_COMMA -VALUE_PROF_FUNC_PARAM(uint64_t, PreciseRangeStart, Type::getInt64Ty(Ctx)) \ - INSTR_PROF_COMMA -VALUE_PROF_FUNC_PARAM(uint64_t, PreciseRangeLast, Type::getInt64Ty(Ctx)) \ - INSTR_PROF_COMMA -VALUE_PROF_FUNC_PARAM(uint64_t, LargeValue, Type::getInt64Ty(Ctx)) -#endif /*VALUE_RANGE_PROF */ #undef VALUE_PROF_FUNC_PARAM #undef INSTR_PROF_COMMA /* VALUE_PROF_FUNC_PARAM end */ @@ -657,9 +647,9 @@ serializeValueProfDataFrom(ValueProfRecordClosure *Closure, /* Raw profile format version (start from 1). */ #define INSTR_PROF_RAW_VERSION 5 /* Indexed profile format version (start from 1). */ -#define INSTR_PROF_INDEX_VERSION 6 +#define INSTR_PROF_INDEX_VERSION 7 /* Coverage mapping format version (start from 0). */ -#define INSTR_PROF_COVMAP_VERSION 3 +#define INSTR_PROF_COVMAP_VERSION 4 /* Profile version is always of type uint64_t. Reserve the upper 8 bits in the * version for other variants of profile. We set the lowest bit of the upper 8 @@ -671,6 +661,7 @@ serializeValueProfDataFrom(ValueProfRecordClosure *Closure, #define GET_VERSION(V) ((V) & ~VARIANT_MASKS_ALL) #define VARIANT_MASK_IR_PROF (0x1ULL << 56) #define VARIANT_MASK_CSIR_PROF (0x1ULL << 57) +#define VARIANT_MASK_INSTR_ENTRY (0x1ULL << 58) #define INSTR_PROF_RAW_VERSION_VAR __llvm_profile_raw_version #define INSTR_PROF_PROFILE_RUNTIME_VAR __llvm_profile_runtime @@ -753,9 +744,9 @@ serializeValueProfDataFrom(ValueProfRecordClosure *Closure, #define INSTR_PROF_VALUE_PROF_FUNC __llvm_profile_instrument_target #define INSTR_PROF_VALUE_PROF_FUNC_STR \ INSTR_PROF_QUOTE(INSTR_PROF_VALUE_PROF_FUNC) -#define INSTR_PROF_VALUE_RANGE_PROF_FUNC __llvm_profile_instrument_range -#define INSTR_PROF_VALUE_RANGE_PROF_FUNC_STR \ - INSTR_PROF_QUOTE(INSTR_PROF_VALUE_RANGE_PROF_FUNC) +#define INSTR_PROF_VALUE_PROF_MEMOP_FUNC __llvm_profile_instrument_memop +#define INSTR_PROF_VALUE_PROF_MEMOP_FUNC_STR \ + INSTR_PROF_QUOTE(INSTR_PROF_VALUE_PROF_MEMOP_FUNC) /* InstrProfile per-function control data alignment. */ #define INSTR_PROF_DATA_ALIGNMENT 8 @@ -783,3 +774,121 @@ typedef struct InstrProfValueData { #endif #undef COVMAP_V2_OR_V3 + +#ifdef INSTR_PROF_VALUE_PROF_MEMOP_API + +#ifdef __cplusplus +#define INSTR_PROF_INLINE inline +#else +#define INSTR_PROF_INLINE +#endif + +/* The value range buckets (22 buckets) for the memop size value profiling looks + * like: + * + * [0, 0] + * [1, 1] + * [2, 2] + * [3, 3] + * [4, 4] + * [5, 5] + * [6, 6] + * [7, 7] + * [8, 8] + * [9, 15] + * [16, 16] + * [17, 31] + * [32, 32] + * [33, 63] + * [64, 64] + * [65, 127] + * [128, 128] + * [129, 255] + * [256, 256] + * [257, 511] + * [512, 512] + * [513, UINT64_MAX] + * + * Each range has a 'representative value' which is the lower end value of the + * range and used to store in the runtime profile data records and the VP + * metadata. For example, it's 2 for [2, 2] and 64 for [65, 127]. + */ + +/* + * Clz and Popcount. This code was copied from + * compiler-rt/lib/fuzzer/{FuzzerBuiltins.h,FuzzerBuiltinsMsvc.h} and + * llvm/include/llvm/Support/MathExtras.h. + */ +#if defined(_MSC_VER) && !defined(__clang__) + +#include <intrin.h> +INSTR_PROF_VISIBILITY INSTR_PROF_INLINE +int InstProfClzll(unsigned long long X) { + unsigned long LeadZeroIdx = 0; +#if !defined(_M_ARM64) && !defined(_M_X64) + // Scan the high 32 bits. + if (_BitScanReverse(&LeadZeroIdx, (unsigned long)(X >> 32))) + return (int)(63 - (LeadZeroIdx + 32)); // Create a bit offset + // from the MSB. + // Scan the low 32 bits. + if (_BitScanReverse(&LeadZeroIdx, (unsigned long)(X))) + return (int)(63 - LeadZeroIdx); +#else + if (_BitScanReverse64(&LeadZeroIdx, X)) return 63 - LeadZeroIdx; +#endif + return 64; +} +INSTR_PROF_VISIBILITY INSTR_PROF_INLINE +int InstProfPopcountll(unsigned long long X) { + // This code originates from https://reviews.llvm.org/rG30626254510f. + unsigned long long v = X; + v = v - ((v >> 1) & 0x5555555555555555ULL); + v = (v & 0x3333333333333333ULL) + ((v >> 2) & 0x3333333333333333ULL); + v = (v + (v >> 4)) & 0x0F0F0F0F0F0F0F0FULL; + return (int)((unsigned long long)(v * 0x0101010101010101ULL) >> 56); +} + +#else + +INSTR_PROF_VISIBILITY INSTR_PROF_INLINE +int InstProfClzll(unsigned long long X) { return __builtin_clzll(X); } +INSTR_PROF_VISIBILITY INSTR_PROF_INLINE +int InstProfPopcountll(unsigned long long X) { return __builtin_popcountll(X); } + +#endif /* defined(_MSC_VER) && !defined(__clang__) */ + +/* Map an (observed) memop size value to the representative value of its range. + * For example, 5 -> 5, 22 -> 17, 99 -> 65, 256 -> 256, 1001 -> 513. */ +INSTR_PROF_VISIBILITY INSTR_PROF_INLINE uint64_t +InstrProfGetRangeRepValue(uint64_t Value) { + if (Value <= 8) + // The first ranges are individually tracked. Use the value as is. + return Value; + else if (Value >= 513) + // The last range is mapped to its lowest value. + return 513; + else if (InstProfPopcountll(Value) == 1) + // If it's a power of two, use it as is. + return Value; + else + // Otherwise, take to the previous power of two + 1. + return (1 << (64 - InstProfClzll(Value) - 1)) + 1; +} + +/* Return true if the range that an (observed) memop size value belongs to has + * only a single value in the range. For example, 0 -> true, 8 -> true, 10 -> + * false, 64 -> true, 100 -> false, 513 -> false. */ +INSTR_PROF_VISIBILITY INSTR_PROF_INLINE unsigned +InstrProfIsSingleValRange(uint64_t Value) { + if (Value <= 8) + // The first ranges are individually tracked. + return 1; + else if (InstProfPopcountll(Value) == 1) + // If it's a power of two, there's only one value. + return 1; + else + // Otherwise, there's more than one value in the range. + return 0; +} + +#endif /* INSTR_PROF_VALUE_PROF_MEMOP_API */ |