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llvm-project/offload/include/Shared/Debug.h
Alex Duran d502ff0949
[OpenMP][Offload] Add support for lambdas with debug conditions (#172573) 
This PR adds a new set of debug macros that allow a certain code to be
only executed when certain debug conditions are met. This is useful to
guard things that are not strictly messages but compute and store things
that are related to those messages.

Strictly speaking the existing ODBG_OS could be used as well but that
requires a stream object to be created which is unnecessary in some
cases.

Example of how it works:

```cpp
ODBG_IF("Counters", [&](uint32_t Level) {
    someCounter++;
    if (Level == 2) moreDetailedCounter += f();
});
ODBG("Counters") << "Counter" =  someCounter 
                 << ODBG_IF(2) << "DetailedCounter" << moreDetailedCounter;
```
2025-12-17 09:30:55 +01:00

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//===-- Shared/Debug.h - Target independent OpenMP target RTL -- C++ ------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// Routines used to provide debug messages and information from libomptarget
// and plugin RTLs to the user.
//
// Each plugin RTL and libomptarget define TARGET_NAME and DEBUG_PREFIX for use
// when sending messages to the user. These indicate which RTL sent the message
//
// Debug and information messages are controlled by the environment variables
// LIBOMPTARGET_DEBUG and LIBOMPTARGET_INFO which is set upon initialization
// of libomptarget or the plugin RTL.
//
// To printf a pointer in hex with a fixed width of 16 digits and a leading 0x,
// use printf("ptr=" DPxMOD "...\n", DPxPTR(ptr));
//
// DPxMOD expands to:
// "0x%0*" PRIxPTR
// where PRIxPTR expands to an appropriate modifier for the type uintptr_t on a
// specific platform, e.g. "lu" if uintptr_t is typedef'd as unsigned long:
// "0x%0*lu"
//
// Ultimately, the whole statement expands to:
// printf("ptr=0x%0*lu...\n", // the 0* modifier expects an extra argument
// // specifying the width of the output
// (int)(2*sizeof(uintptr_t)), // the extra argument specifying the width
// // 8 digits for 32bit systems
// // 16 digits for 64bit
// (uintptr_t) ptr);
//
//===----------------------------------------------------------------------===//
#ifndef OMPTARGET_SHARED_DEBUG_H
#define OMPTARGET_SHARED_DEBUG_H
#include <atomic>
#include <cstdarg>
#include <mutex>
#include <string>
#include "llvm/ADT/StringExtras.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/circular_raw_ostream.h"
/// 32-Bit field data attributes controlling information presented to the user.
enum OpenMPInfoType : uint32_t {
// Print data arguments and attributes upon entering an OpenMP device kernel.
OMP_INFOTYPE_KERNEL_ARGS = 0x0001,
// Indicate when an address already exists in the device mapping table.
OMP_INFOTYPE_MAPPING_EXISTS = 0x0002,
// Dump the contents of the device pointer map at kernel exit or failure.
OMP_INFOTYPE_DUMP_TABLE = 0x0004,
// Indicate when an address is added to the device mapping table.
OMP_INFOTYPE_MAPPING_CHANGED = 0x0008,
// Print kernel information from target device plugins.
OMP_INFOTYPE_PLUGIN_KERNEL = 0x0010,
// Print whenever data is transferred to the device
OMP_INFOTYPE_DATA_TRANSFER = 0x0020,
// Print whenever data does not have a viable device counterpart.
OMP_INFOTYPE_EMPTY_MAPPING = 0x0040,
// Enable every flag.
OMP_INFOTYPE_ALL = 0xffffffff,
};
inline std::atomic<uint32_t> &getInfoLevelInternal() {
static std::atomic<uint32_t> InfoLevel;
static std::once_flag Flag{};
std::call_once(Flag, []() {
if (char *EnvStr = getenv("LIBOMPTARGET_INFO"))
InfoLevel.store(std::stoi(EnvStr));
});
return InfoLevel;
}
inline uint32_t getInfoLevel() { return getInfoLevelInternal().load(); }
#undef USED
#undef GCC_VERSION
#ifndef __STDC_FORMAT_MACROS
#define __STDC_FORMAT_MACROS
#endif
#include <inttypes.h>
#undef __STDC_FORMAT_MACROS
#define DPxMOD "0x%0*" PRIxPTR
#define DPxPTR(ptr) ((int)(2 * sizeof(uintptr_t))), ((uintptr_t)(ptr))
#define GETNAME2(name) #name
#define GETNAME(name) GETNAME2(name)
/// Print a generic message string from libomptarget or a plugin RTL
#define MESSAGE0(_str) \
do { \
fprintf(stderr, GETNAME(TARGET_NAME) " message: %s\n", _str); \
} while (0)
/// Print a printf formatting string message from libomptarget or a plugin RTL
#define MESSAGE(_str, ...) \
do { \
fprintf(stderr, GETNAME(TARGET_NAME) " message: " _str "\n", __VA_ARGS__); \
} while (0)
/// Print fatal error message with an error string and error identifier
#define FATAL_MESSAGE0(_num, _str) \
do { \
fprintf(stderr, GETNAME(TARGET_NAME) " fatal error %d: %s\n", (int)_num, \
_str); \
abort(); \
} while (0)
/// Print fatal error message with a printf string and error identifier
#define FATAL_MESSAGE(_num, _str, ...) \
do { \
fprintf(stderr, GETNAME(TARGET_NAME) " fatal error %d: " _str "\n", \
(int)_num, __VA_ARGS__); \
abort(); \
} while (0)
/// Print a generic error string from libomptarget or a plugin RTL
#define FAILURE_MESSAGE(...) \
do { \
fprintf(stderr, GETNAME(TARGET_NAME) " error: "); \
fprintf(stderr, __VA_ARGS__); \
} while (0)
/// Print a generic information string used if LIBOMPTARGET_INFO=1
#define INFO_MESSAGE(_num, ...) INFO_MESSAGE_TO(stderr, _num, __VA_ARGS__)
#define INFO_MESSAGE_TO(_stdDst, _num, ...) \
do { \
fprintf(_stdDst, GETNAME(TARGET_NAME) " device %d info: ", (int)_num); \
fprintf(_stdDst, __VA_ARGS__); \
} while (0)
/// Emit a message giving the user extra information about the runtime if
#define INFO(_flags, _id, ...) \
do { \
if (::llvm::offload::debug::isDebugEnabled()) { \
DP(__VA_ARGS__); \
} else if (getInfoLevel() & _flags) { \
INFO_MESSAGE(_id, __VA_ARGS__); \
} \
} while (false)
#define DUMP_INFO(toStdOut, _flags, _id, ...) \
do { \
if (toStdOut) { \
INFO_MESSAGE_TO(stdout, _id, __VA_ARGS__); \
} else { \
INFO(_flags, _id, __VA_ARGS__); \
} \
} while (false)
namespace llvm::offload::debug {
/// A raw_ostream that tracks `\n` and print the prefix after each
/// newline. Based on raw_ldbg_ostream from Support/DebugLog.h
class LLVM_ABI odbg_ostream final : public raw_ostream {
public:
enum IfLevel : uint32_t;
enum OnlyLevel : uint32_t;
private:
std::string Prefix;
raw_ostream &Os;
uint32_t BaseLevel;
bool ShouldPrefixNextString;
bool ShouldEmitNewLineOnDestruction;
bool NeedEndNewLine = false;
/// If the stream is muted, writes to it are ignored
bool Muted = false;
/// Split the line on newlines and insert the prefix before each
/// newline. Forward everything to the underlying stream.
void write_impl(const char *Ptr, size_t Size) final {
if (Muted)
return;
NeedEndNewLine = false;
auto Str = StringRef(Ptr, Size);
auto Eol = Str.find('\n');
// Handle `\n` occurring in the string, ensure to print the prefix at the
// beginning of each line.
while (Eol != StringRef::npos) {
// Take the line up to the newline (including the newline).
StringRef Line = Str.take_front(Eol + 1);
if (!Line.empty())
writeWithPrefix(Line);
// We printed a newline, record here to print a prefix.
ShouldPrefixNextString = true;
Str = Str.drop_front(Eol + 1);
Eol = Str.find('\n');
}
if (!Str.empty()) {
writeWithPrefix(Str);
NeedEndNewLine = true;
}
}
void emitPrefix() { Os.write(Prefix.c_str(), Prefix.size()); }
void writeWithPrefix(StringRef Str) {
if (ShouldPrefixNextString) {
emitPrefix();
ShouldPrefixNextString = false;
}
Os.write(Str.data(), Str.size());
}
public:
explicit odbg_ostream(std::string Prefix, raw_ostream &Os, uint32_t BaseLevel,
bool ShouldPrefixNextString = true,
bool ShouldEmitNewLineOnDestruction = true)
: Prefix(std::move(Prefix)), Os(Os), BaseLevel(BaseLevel),
ShouldPrefixNextString(ShouldPrefixNextString),
ShouldEmitNewLineOnDestruction(ShouldEmitNewLineOnDestruction) {
SetUnbuffered();
}
~odbg_ostream() final {
if (ShouldEmitNewLineOnDestruction && NeedEndNewLine)
Os << '\n';
}
odbg_ostream(const odbg_ostream &) = delete;
odbg_ostream &operator=(const odbg_ostream &) = delete;
odbg_ostream(odbg_ostream &&other) : Os(other.Os) {
Prefix = std::move(other.Prefix);
BaseLevel = other.BaseLevel;
ShouldPrefixNextString = other.ShouldPrefixNextString;
ShouldEmitNewLineOnDestruction = other.ShouldEmitNewLineOnDestruction;
NeedEndNewLine = other.NeedEndNewLine;
Muted = other.Muted;
}
/// Forward the current_pos method to the underlying stream.
uint64_t current_pos() const final { return Os.tell(); }
/// Some of the `<<` operators expect an lvalue, so we trick the type
/// system.
odbg_ostream &asLvalue() { return *this; }
void shouldMute(const IfLevel Filter) { Muted = Filter > BaseLevel; }
void shouldMute(const OnlyLevel Filter) { Muted = BaseLevel != Filter; }
};
/// dbgs - Return a circular-buffered debug stream.
[[maybe_unused]] static llvm::raw_ostream &dbgs() {
// Do one-time initialization in a thread-safe way.
static struct dbgstream {
llvm::circular_raw_ostream strm;
dbgstream() : strm(llvm::errs(), "*** Debug Log Output ***\n", 0) {}
} thestrm;
return thestrm.strm;
}
#ifdef OMPTARGET_DEBUG
struct DebugFilter {
StringRef Type;
uint32_t Level;
};
struct DebugSettings {
bool Enabled = false;
uint32_t DefaultLevel = 1;
llvm::SmallVector<DebugFilter> Filters;
};
[[maybe_unused]] static DebugFilter parseDebugFilter(StringRef Filter) {
size_t Pos = Filter.find(':');
if (Pos == StringRef::npos)
return {Filter, 1};
StringRef Type = Filter.slice(0, Pos);
uint32_t Level = 1;
if (Filter.slice(Pos + 1, Filter.size()).getAsInteger(10, Level))
Level = 1;
return {Type, Level};
}
[[maybe_unused]] static DebugSettings &getDebugSettings() {
static DebugSettings Settings;
static std::once_flag Flag{};
std::call_once(Flag, []() {
// Eventually, we probably should allow the upper layers to set
// debug settings directly according to their own env var or
// other methods.
// For now, mantain compatibility with existing libomptarget env var
// and add a liboffload independent one.
char *Env = getenv("LIBOMPTARGET_DEBUG");
if (!Env) {
Env = getenv("LIBOFFLOAD_DEBUG");
if (!Env)
return;
}
StringRef EnvRef(Env);
if (EnvRef == "0")
return;
Settings.Enabled = true;
if (EnvRef.equals_insensitive("all"))
return;
if (!EnvRef.getAsInteger(10, Settings.DefaultLevel))
return;
Settings.DefaultLevel = 1;
for (auto &FilterSpec : llvm::split(EnvRef, ',')) {
if (FilterSpec.empty())
continue;
Settings.Filters.push_back(parseDebugFilter(FilterSpec));
}
});
return Settings;
}
inline bool isDebugEnabled() { return getDebugSettings().Enabled; }
[[maybe_unused]] static bool
shouldPrintDebug(const char *Component, const char *Type, uint32_t &Level) {
const auto &Settings = getDebugSettings();
if (!Settings.Enabled)
return false;
if (Settings.Filters.empty()) {
if (Level <= Settings.DefaultLevel) {
Level = Settings.DefaultLevel;
return true;
}
return false;
}
for (const auto &DT : Settings.Filters) {
if (DT.Level < Level)
continue;
if (DT.Type.equals_insensitive(Type) ||
DT.Type.equals_insensitive(Component)) {
Level = DT.Level;
return true;
}
}
return false;
}
/// Compute the prefix for the debug log in the form of:
/// "Component --> "
[[maybe_unused]] static std::string computePrefix(StringRef Component,
StringRef DebugType) {
std::string Prefix;
raw_string_ostream OsPrefix(Prefix);
OsPrefix << Component << " --> ";
return OsPrefix.str();
}
static inline raw_ostream &operator<<(raw_ostream &Os,
const odbg_ostream::IfLevel Filter) {
odbg_ostream &Dbg = static_cast<odbg_ostream &>(Os);
Dbg.shouldMute(Filter);
return Dbg;
}
static inline raw_ostream &operator<<(raw_ostream &Os,
const odbg_ostream::OnlyLevel Filter) {
odbg_ostream &Dbg = static_cast<odbg_ostream &>(Os);
Dbg.shouldMute(Filter);
return Dbg;
}
#define ODBG_BASE(Stream, Component, Prefix, Type, Level) \
for (uint32_t RealLevel = (Level), \
_c = llvm::offload::debug::isDebugEnabled() && \
llvm::offload::debug::shouldPrintDebug( \
(Component), (Type), RealLevel); \
_c; _c = 0) \
::llvm::offload::debug::odbg_ostream{ \
::llvm::offload::debug::computePrefix((Prefix), (Type)), (Stream), \
RealLevel, /*ShouldPrefixNextString=*/true, \
/*ShouldEmitNewLineOnDestruction=*/true} \
.asLvalue()
#define ODBG_STREAM(Stream, Type, Level) \
ODBG_BASE(Stream, GETNAME(TARGET_NAME), DEBUG_PREFIX, Type, Level)
#define ODBG_0() ODBG_2("default", 1)
#define ODBG_1(Type) ODBG_2(Type, 1)
#define ODBG_2(Type, Level) \
ODBG_STREAM(llvm::offload::debug::dbgs(), Type, Level)
#define ODBG_SELECT(Type, Level, NArgs, ...) ODBG_##NArgs
// Print a debug message of a certain type and verbosity level. If no type
// or level is provided, "default" and "1" are assumed respectively.
// Usage examples:
// ODBG("type1", 2) << "This is a level 2 message of type1";
// ODBG("Init") << "This is a default level of the init type";
// ODBG() << "This is a level 1 message of the default type";
// ODBG("Init", 3) << NumDevices << " were initialized";
// ODBG("Kernel") << "Launching " << KernelName << " on device " << DeviceId;
#define ODBG(...) ODBG_SELECT(__VA_ARGS__ __VA_OPT__(, ) 2, 1, 0)(__VA_ARGS__)
// Filter the next elements in the debug stream if the current debug level is
// lower than specified level. Example:
// ODBG("Mapping", 2) << "level 2 info "
// << ODBG_IF_LEVEL(3) << " level 3 info" << Arg
// << ODBG_IF_LEVEL(4) << " level 4 info" << &Arg
// << ODBG_RESET_LEVEL() << " more level 2 info";
#define ODBG_IF_LEVEL(Level) \
static_cast<llvm::offload::debug::odbg_ostream::IfLevel>(Level)
// Filter the next elements in the debug stream if the current debug level is
// not exactly the specified level. Example:
// ODBG() << "Starting computation "
// << ODBG_ONLY_LEVEL(1) << "on a device"
// << ODBG_ONLY_LEVEL(2) << "and mapping data on device" << DeviceId;
// << ODBG_ONLY_LEVEL(3) << dumpDetailedMappingInfo(DeviceId);
#define ODBG_ONLY_LEVEL(Level) \
static_cast<llvm::offload::debug::odbg_ostream::OnlyLevel>(Level)
// Reset the level back to the original level after ODBG_IF_LEVEL or
// ODBG_ONLY_LEVEL have been used
#define ODBG_RESET_LEVEL() \
static_cast<llvm::offload::debug::odbg_ostream::IfLevel>(0)
// helper templates to support lambdas with different number of arguments
template <typename LambdaTy> struct LambdaHelper {
template <typename FuncTy, typename RetTy, typename... Args>
static constexpr size_t CountArgs(RetTy (FuncTy::*)(Args...)) {
return sizeof...(Args);
}
template <typename FuncTy, typename RetTy, typename... Args>
static constexpr size_t CountArgs(RetTy (FuncTy::*)(Args...) const) {
return sizeof...(Args);
}
static constexpr size_t NArgs = CountArgs(&LambdaTy::operator());
};
template <typename LambdaTy> struct LambdaOs : public LambdaHelper<LambdaTy> {
static void dispatch(LambdaTy func, llvm::raw_ostream &Os, uint32_t Level) {
if constexpr (LambdaHelper<LambdaTy>::NArgs == 2)
func(Os, Level);
else
func(Os);
}
};
#define ODBG_OS_BASE(Stream, Component, Prefix, Type, Level, Callback) \
if (::llvm::offload::debug::isDebugEnabled()) { \
uint32_t RealLevel = (Level); \
if (::llvm::offload::debug::shouldPrintDebug((Component), (Type), \
RealLevel)) { \
::llvm::offload::debug::odbg_ostream OS{ \
::llvm::offload::debug::computePrefix((Prefix), (Type)), (Stream), \
RealLevel, /*ShouldPrefixNextString=*/true, \
/*ShouldEmitNewLineOnDestruction=*/true}; \
auto F = Callback; \
::llvm::offload::debug::LambdaOs<decltype(F)>::dispatch(F, OS, \
RealLevel); \
} \
}
#define ODBG_OS_STREAM(Stream, Type, Level, Callback) \
ODBG_OS_BASE(Stream, GETNAME(TARGET_NAME), DEBUG_PREFIX, Type, Level, \
Callback)
#define ODBG_OS_3(Type, Level, Callback) \
ODBG_OS_STREAM(llvm::offload::debug::dbgs(), Type, Level, Callback)
#define ODBG_OS_2(Type, Callback) ODBG_OS_3(Type, 1, Callback)
#define ODBG_OS_1(Callback) ODBG_OS_2("default", Callback)
#define ODBG_OS_SELECT(Type, Level, Callback, NArgs, ...) ODBG_OS_##NArgs
// Print a debug message of a certain type and verbosity level using a callback
// to emit the message. If no type or level is provided, "default" and "1 are
// assumed respectively.
#define ODBG_OS(...) \
ODBG_OS_SELECT(__VA_ARGS__ __VA_OPT__(, ) 3, 2, 1)(__VA_ARGS__)
// helper templates to support lambdas with different number of arguments
template <typename LambdaTy> struct LambdaIf : public LambdaHelper<LambdaTy> {
static void dispatch(LambdaTy func, uint32_t Level) {
if constexpr (LambdaHelper<LambdaTy>::NArgs == 1)
func(Level);
else
func();
}
};
#define ODBG_IF_BASE(Type, Level, Callback) \
if (::llvm::offload::debug::isDebugEnabled()) { \
uint32_t RealLevel = (Level); \
if (::llvm::offload::debug::shouldPrintDebug(GETNAME(TARGET_NAME), (Type), \
RealLevel)) { \
auto F = Callback; \
::llvm::offload::debug::LambdaIf<decltype(F)>::dispatch(F, RealLevel); \
} \
}
#define ODBG_IF_3(Type, Level, Callback) ODBG_IF_BASE(Type, Level, Callback)
#define ODBG_IF_2(Type, Callback) ODBG_IF_3(Type, 1, Callback)
#define ODBG_IF_1(Callback) ODBG_IF_2("default", Callback)
#define ODBG_IF_SELECT(Type, Level, Callback, NArgs, ...) ODBG_IF_##NArgs
#define ODBG_IF(...) \
ODBG_IF_SELECT(__VA_ARGS__ __VA_OPT__(, ) 3, 2, 1)(__VA_ARGS__)
#else
inline bool isDebugEnabled() { return false; }
#define ODBG_NULL \
for (bool _c = false; _c; _c = false) \
::llvm::nulls()
// Don't print anything if debugging is disabled
#define ODBG_BASE(Stream, Component, Prefix, Type, Level) ODBG_NULL
#define ODBG_STREAM(Stream, Type, Level) ODBG_NULL
#define ODBG_IF_LEVEL(Level) 0
#define ODBG_ONLY_LEVEL(Level) 0
#define ODBG_RESET_LEVEL() 0
#define ODBG(...) ODBG_NULL
#define ODBG_OS_BASE(Stream, Component, Prefix, Type, Level, Callback)
#define ODBG_OS_STREAM(Stream, Type, Level, Callback)
#define ODBG_OS(...)
#define ODBG_IF_BASE(Type, Level, Callback)
#define ODBG_IF(...)
#endif
} // namespace llvm::offload::debug
namespace llvm::omp::target::debug {
using namespace llvm::offload::debug;
enum OmpDebugLevel : uint32_t {
ODL_Default = 1,
ODL_Error = ODL_Default,
ODL_Detailed = 2,
ODL_Verbose = 3,
ODL_VeryVerbose = 4,
ODL_Dumping = 5
};
/* Debug types to use in libomptarget */
constexpr const char *ODT_Init = "Init";
constexpr const char *ODT_Mapping = "Mapping";
constexpr const char *ODT_Kernel = "Kernel";
constexpr const char *ODT_DataTransfer = "DataTransfer";
constexpr const char *ODT_Sync = "Sync";
constexpr const char *ODT_Deinit = "Deinit";
constexpr const char *ODT_Error = "Error";
constexpr const char *ODT_KernelArgs = "KernelArgs";
constexpr const char *ODT_MappingExists = "MappingExists";
constexpr const char *ODT_DumpTable = "DumpTable";
constexpr const char *ODT_MappingChanged = "MappingChanged";
constexpr const char *ODT_PluginKernel = "PluginKernel";
constexpr const char *ODT_EmptyMapping = "EmptyMapping";
constexpr const char *ODT_Device = "Device";
constexpr const char *ODT_Interface = "Interface";
constexpr const char *ODT_Alloc = "Alloc";
static inline odbg_ostream reportErrorStream() {
#ifdef OMPTARGET_DEBUG
if (::llvm::offload::debug::isDebugEnabled()) {
uint32_t RealLevel = ODL_Error;
if (::llvm::offload::debug::shouldPrintDebug(GETNAME(TARGET_NAME),
(ODT_Error), RealLevel))
return odbg_ostream{
::llvm::offload::debug::computePrefix(DEBUG_PREFIX, ODT_Error),
::llvm::offload::debug::dbgs(), RealLevel};
else
return odbg_ostream{"", ::llvm::nulls(), 1};
}
#endif
return odbg_ostream{GETNAME(TARGET_NAME) " error: ",
::llvm::offload::debug::dbgs(), ODL_Error};
}
#ifdef OMPTARGET_DEBUG
// Deprecated debug print macros
[[maybe_unused]] static std::string formatToStr(const char *format, ...) {
va_list args;
va_start(args, format);
size_t len = std::vsnprintf(NULL, 0, format, args);
va_end(args);
llvm::SmallVector<char, 128> vec(len + 1);
va_start(args, format);
std::vsnprintf(&vec[0], len + 1, format, args);
va_end(args);
return &vec[0];
}
// helper macro to support old DP and REPORT macros with printf syntax
#define FORMAT_TO_STR(Format, ...) \
::llvm::omp::target::debug::formatToStr(Format __VA_OPT__(, ) __VA_ARGS__)
#define DP(...) ODBG() << FORMAT_TO_STR(__VA_ARGS__);
#define REPORT_INT_OLD(...) \
do { \
if (::llvm::offload::debug::isDebugEnabled()) { \
ODBG(::llvm::omp::target::debug::ODT_Error, \
::llvm::omp::target::debug::ODL_Error) \
<< FORMAT_TO_STR(__VA_ARGS__); \
} else { \
FAILURE_MESSAGE(__VA_ARGS__); \
} \
} while (false)
// Define default format for pointers
static inline raw_ostream &operator<<(raw_ostream &Os, void *Ptr) {
Os << ::llvm::format(DPxMOD, DPxPTR(Ptr));
return Os;
}
#else
#define DP(...) \
{ \
}
#define REPORT_INT_OLD(...) FAILURE_MESSAGE(__VA_ARGS__);
#endif // OMPTARGET_DEBUG
// This is used for the new style REPORT macro
#define REPORT_INT() ::llvm::omp::target::debug::reportErrorStream()
// Make REPORT compatible with old and new syntax
#define REPORT(...) REPORT_INT##__VA_OPT__(_OLD)(__VA_ARGS__)
} // namespace llvm::omp::target::debug
#endif // OMPTARGET_SHARED_DEBUG_H
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