16e74fd489
New change on top of [reviewed patch](https://github.com/llvm/llvm-project/pull/81691) are [in commits after this one](d0757f46b3). Previous commits are restored from the remote branch with timestamps. 1. Fix build breakage for non-ELF platforms, by defining the missing functions {`__llvm_profile_begin_vtables`, `__llvm_profile_end_vtables`, `__llvm_profile_begin_vtabnames `, `__llvm_profile_end_vtabnames`} everywhere. * Tested on mac laptop (for darwins) and Windows. Specifically, functions in `InstrProfilingPlatformWindows.c` returns `NULL` to make it more explicit that type prof isn't supported; see comments for the reason. * For the rest (AIX, other), mostly follow existing examples (like this [one](f95b2f1acf)) 2. Rename `__llvm_prf_vtabnames` -> `__llvm_prf_vns` for shorter section name, and make returned pointers [const](a825d2a4ec (diff-4de780ce726d76b7abc9d3353aef95013e7b21e7bda01be8940cc6574fb0b5ffR120-R121)) **Original Description** * Raw profile format - Header: records the byte size of compressed vtable names, and the number of profiled vtable entries (call it `VTableProfData`). Header also records padded bytes of each section. - Payload: adds a section for compressed vtable names, and a section to store `VTableProfData`. Both sections are padded so the size is a multiple of 8. * Indexed profile format - Header: records the byte offset of compressed vtable names. - Payload: adds a section to store compressed vtable names. This section is used by `llvm-profdata` to show the list of vtables profiled for an instrumented site. [The originally reviewed patch](https://github.com/llvm/llvm-project/pull/66825) will have profile reader/write change and llvm-profdata change. - To ensure this PR has all the necessary profile format change along with profile version bump, created a copy of the originally reviewed patch in https://github.com/llvm/llvm-project/pull/80761. The copy doesn't have profile format change, but it has the set of tests which covers type profile generation, profile read and profile merge. Tests pass there. rfc in https://discourse.llvm.org/t/rfc-dynamic-type-profiling-and-optimizations-in-llvm/74600 --------- Co-authored-by: modiking <modiking213@gmail.com>
86 lines
3.5 KiB
Plaintext
86 lines
3.5 KiB
Plaintext
// Header
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//
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// INSTR_PROF_RAW_HEADER(uint64_t, Magic, __llvm_profile_get_magic())
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// INSTR_PROF_RAW_HEADER(uint64_t, Version, __llvm_profile_get_version())
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// INSTR_PROF_RAW_HEADER(uint64_t, BinaryIdsSize, __llvm_write_binary_ids(NULL))
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// INSTR_PROF_RAW_HEADER(uint64_t, DataSize, DataSize)
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// INSTR_PROF_RAW_HEADER(uint64_t, CountersSize, CountersSize)
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// INSTR_PROF_RAW_HEADER(uint64_t, NumBitmaskBytes, NumBitmaskBytes)
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// INSTR_PROF_RAW_HEADER(uint64_t, NamesSize, NamesSize)
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// INSTR_PROF_RAW_HEADER(uint64_t, CountersDelta, (uintptr_t)CountersBegin)
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// INSTR_PROF_RAW_HEADER(uint64_t, BitmaskDelta, (uintptr_t)BitmaskBegin)
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// INSTR_PROF_RAW_HEADER(uint64_t, NamesDelta, (uintptr_t)NamesBegin)
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// INSTR_PROF_RAW_HEADER(uint64_t, VNamesSize, VNamesSize)
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// INSTR_PROF_RAW_HEADER(uint64_t, NumVTables, NumVTables)
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// INSTR_PROF_RAW_HEADER(uint64_t, ValueKindLast, IPVK_Last)
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RUN: printf '\201rforpl\377' > %t.profraw
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RUN: printf '\12\0\0\0\0\0\0\0' >> %t.profraw
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// There will be 2 20-byte binary IDs, so the total Binary IDs size will be 64 bytes.
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// 2 * 8 binary ID sizes
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// + 2 * 20 binary IDs (of size 20)
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// + 2 * 4 binary ID paddings
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// --------
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// = 64 bytes
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RUN: printf '\100\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\2\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\3\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\20\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\0\0\4\0\1\0\0\0' >> %t.profraw
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RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\0\0\4\0\2\0\0\0' >> %t.profraw
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RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
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// Binary IDs - There are only two in this case that are 20 bytes.
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RUN: printf '\24\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\0\1\2\3\4\5\6\7' >> %t.profraw
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RUN: printf '\0\1\2\3\4\5\6\7' >> %t.profraw
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RUN: printf '\0\1\2\3\0\0\0\0' >> %t.profraw
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RUN: printf '\24\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\1\1\1\1\1\1\1\1' >> %t.profraw
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RUN: printf '\2\2\2\2\2\2\2\2' >> %t.profraw
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RUN: printf '\3\3\3\3\0\0\0\0' >> %t.profraw
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// Data Section
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//
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// struct ProfData {
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// #define INSTR_PROF_DATA(Type, LLVMType, Name, Initializer) \
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// Type Name;
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// #include "llvm/ProfileData/InstrProfData.inc"
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// };
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RUN: printf '\254\275\030\333\114\302\370\134' >> %t.profraw
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RUN: printf '\1\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\0\0\4\0\1\0\0\0' >> %t.profraw
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RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\1\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\067\265\035\031\112\165\023\344' >> %t.profraw
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RUN: printf '\02\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\xc8\xff\3\0\1\0\0\0' >> %t.profraw
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RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\02\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\0\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\023\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\067\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\101\0\0\0\0\0\0\0' >> %t.profraw
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RUN: printf '\7\0foo\1bar\0\0\0\0\0\0\0' >> %t.profraw
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// RUN: llvm-profdata show --binary-ids %t.profraw | FileCheck %s
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// CHECK: Instrumentation level: Front-end
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// CHECK: Binary IDs:
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// CHECK-NEXT: 0001020304050607000102030405060700010203
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// CHECK-NEXT: 0101010101010101020202020202020203030303
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