95ab7582f0
This patch fixes the following issues: (1) The strong definition of the merge hook function was not working which breaks the online value profile merging. This patch removes the weak attribute of VPMergeHook and assigns the value dynamically. (2) Truncate the proifle file so that we don't have garbage data at the end of the file. (3) Add new __llvm_profile_instrument_target_value() interface to do the value profile update in batch. This is needed as the original incremental by 1 in __llvm_profile_instrument_target() is too slow for online merge. Differential Revision: https://reviews.llvm.org/D44847 llvm-svn: 328987
133 lines
4.6 KiB
C
133 lines
4.6 KiB
C
/*===- InstrProfilingPort.h- Support library for PGO instrumentation ------===*\
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|*
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|* The LLVM Compiler Infrastructure
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|*
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|* This file is distributed under the University of Illinois Open Source
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|* License. See LICENSE.TXT for details.
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|*
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\*===----------------------------------------------------------------------===*/
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/* This header must be included after all others so it can provide fallback
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definitions for stuff missing in system headers. */
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#ifndef PROFILE_INSTRPROFILING_PORT_H_
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#define PROFILE_INSTRPROFILING_PORT_H_
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#ifdef _MSC_VER
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#define COMPILER_RT_ALIGNAS(x) __declspec(align(x))
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#define COMPILER_RT_VISIBILITY
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/* FIXME: selectany does not have the same semantics as weak. */
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#define COMPILER_RT_WEAK __declspec(selectany)
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/* Need to include <windows.h> */
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#define COMPILER_RT_ALLOCA _alloca
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/* Need to include <stdio.h> and <io.h> */
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#define COMPILER_RT_FTRUNCATE(f,l) _chsize(_fileno(f),l)
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#define COMPILER_RT_ALWAYS_INLINE __forceinline
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#elif __GNUC__
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#define COMPILER_RT_ALIGNAS(x) __attribute__((aligned(x)))
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#define COMPILER_RT_VISIBILITY __attribute__((visibility("hidden")))
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#define COMPILER_RT_WEAK __attribute__((weak))
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#define COMPILER_RT_ALLOCA __builtin_alloca
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#define COMPILER_RT_FTRUNCATE(f,l) ftruncate(fileno(f),l)
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#define COMPILER_RT_ALWAYS_INLINE inline __attribute((always_inline))
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#endif
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#if defined(__APPLE__)
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#define COMPILER_RT_SEG "__DATA,"
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#else
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#define COMPILER_RT_SEG ""
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#endif
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#ifdef _MSC_VER
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#define COMPILER_RT_SECTION(Sect) __declspec(allocate(Sect))
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#else
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#define COMPILER_RT_SECTION(Sect) __attribute__((section(Sect)))
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#endif
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#define COMPILER_RT_MAX_HOSTLEN 128
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#ifdef __ORBIS__
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#define COMPILER_RT_GETHOSTNAME(Name, Len) ((void)(Name), (void)(Len), (-1))
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#else
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#define COMPILER_RT_GETHOSTNAME(Name, Len) lprofGetHostName(Name, Len)
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#endif
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#if COMPILER_RT_HAS_ATOMICS == 1
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#ifdef _MSC_VER
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#include <windows.h>
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#if _MSC_VER < 1900
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#define snprintf _snprintf
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#endif
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#if defined(_WIN64)
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#define COMPILER_RT_BOOL_CMPXCHG(Ptr, OldV, NewV) \
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(InterlockedCompareExchange64((LONGLONG volatile *)Ptr, (LONGLONG)NewV, \
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(LONGLONG)OldV) == (LONGLONG)OldV)
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#define COMPILER_RT_PTR_FETCH_ADD(DomType, PtrVar, PtrIncr) \
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(DomType *)InterlockedExchangeAdd64((LONGLONG volatile *)&PtrVar, \
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(LONGLONG)sizeof(DomType) * PtrIncr)
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#else /* !defined(_WIN64) */
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#define COMPILER_RT_BOOL_CMPXCHG(Ptr, OldV, NewV) \
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(InterlockedCompareExchange((LONG volatile *)Ptr, (LONG)NewV, (LONG)OldV) == \
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(LONG)OldV)
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#define COMPILER_RT_PTR_FETCH_ADD(DomType, PtrVar, PtrIncr) \
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(DomType *)InterlockedExchangeAdd((LONG volatile *)&PtrVar, \
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(LONG)sizeof(DomType) * PtrIncr)
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#endif
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#else /* !defined(_MSC_VER) */
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#define COMPILER_RT_BOOL_CMPXCHG(Ptr, OldV, NewV) \
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__sync_bool_compare_and_swap(Ptr, OldV, NewV)
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#define COMPILER_RT_PTR_FETCH_ADD(DomType, PtrVar, PtrIncr) \
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(DomType *)__sync_fetch_and_add((long *)&PtrVar, sizeof(DomType) * PtrIncr)
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#endif
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#else /* COMPILER_RT_HAS_ATOMICS != 1 */
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#include "InstrProfilingUtil.h"
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#define COMPILER_RT_BOOL_CMPXCHG(Ptr, OldV, NewV) \
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lprofBoolCmpXchg((void **)Ptr, OldV, NewV)
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#define COMPILER_RT_PTR_FETCH_ADD(DomType, PtrVar, PtrIncr) \
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(DomType *)lprofPtrFetchAdd((void **)&PtrVar, sizeof(DomType) * PtrIncr)
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#endif
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#if defined(_WIN32)
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#define DIR_SEPARATOR '\\'
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#define DIR_SEPARATOR_2 '/'
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#else
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#define DIR_SEPARATOR '/'
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#endif
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#ifndef DIR_SEPARATOR_2
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#define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
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#else /* DIR_SEPARATOR_2 */
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#define IS_DIR_SEPARATOR(ch) \
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(((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
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#endif /* DIR_SEPARATOR_2 */
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#define PROF_ERR(Format, ...) \
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fprintf(stderr, "LLVM Profile Error: " Format, __VA_ARGS__);
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#define PROF_WARN(Format, ...) \
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fprintf(stderr, "LLVM Profile Warning: " Format, __VA_ARGS__);
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#define PROF_NOTE(Format, ...) \
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fprintf(stderr, "LLVM Profile Note: " Format, __VA_ARGS__);
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#ifndef MAP_FILE
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#define MAP_FILE 0
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#endif
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#ifndef O_BINARY
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#define O_BINARY 0
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#endif
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#if defined(__FreeBSD__)
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#include <inttypes.h>
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#include <sys/types.h>
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#else /* defined(__FreeBSD__) */
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#include <inttypes.h>
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#include <stdint.h>
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#endif /* defined(__FreeBSD__) && defined(__i386__) */
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#endif /* PROFILE_INSTRPROFILING_PORT_H_ */
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