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llvm-mirror/lib/Support/CMakeLists.txt
Daniel Sanders f521e30212 [globalisel][tablegen] Generate rule coverage and use it to identify untested rules
Summary:
This patch adds a LLVM_ENABLE_GISEL_COV which, like LLVM_ENABLE_DAGISEL_COV,
causes TableGen to instrument the generated table to collect rule coverage
information. However, LLVM_ENABLE_GISEL_COV goes a bit further than
LLVM_ENABLE_DAGISEL_COV. The information is written to files
(${CMAKE_BINARY_DIR}/gisel-coverage-* by default). These files can then be
concatenated into ${LLVM_GISEL_COV_PREFIX}-all after which TableGen will
read this information and use it to emit warnings about untested rules.

This technique could also be used by SelectionDAG and can be further
extended to detect hot rules and give them priority over colder rules.

Usage:
* Enable LLVM_ENABLE_GISEL_COV in CMake
* Build the compiler and run some tests
* cat gisel-coverage-[0-9]* > gisel-coverage-all
* Delete lib/Target/*/*GenGlobalISel.inc*
* Build the compiler

Known issues:
* ${LLVM_GISEL_COV_PREFIX}-all must be generated as a manual
  step due to a lack of a portable 'cat' command. It should be the
  concatenation of all ${LLVM_GISEL_COV_PREFIX}-[0-9]* files.
* There's no mechanism to discard coverage information when the ruleset
  changes

Depends on D39742

Reviewers: ab, qcolombet, t.p.northover, aditya_nandakumar, rovka

Reviewed By: rovka

Subscribers: vsk, arsenm, nhaehnle, mgorny, kristof.beyls, javed.absar, igorb, llvm-commits

Differential Revision: https://reviews.llvm.org/D39747

llvm-svn: 318356
2017-11-16 00:46:35 +00:00

154 lines
3.0 KiB
CMake

set(system_libs)
if( MSVC OR MINGW )
# libuuid required for FOLDERID_Profile usage in lib/Support/Windows/Path.inc.
set(system_libs ${system_libs} psapi shell32 ole32 uuid)
elseif( CMAKE_HOST_UNIX )
if( HAVE_LIBRT )
set(system_libs ${system_libs} rt)
endif()
if( HAVE_LIBDL )
set(system_libs ${system_libs} ${CMAKE_DL_LIBS})
endif()
if( HAVE_BACKTRACE )
set(system_libs ${system_libs} ${Backtrace_LIBRARIES})
endif()
if(LLVM_ENABLE_TERMINFO)
if(HAVE_TERMINFO)
set(system_libs ${system_libs} ${TERMINFO_LIBS})
endif()
endif()
if( LLVM_ENABLE_THREADS AND HAVE_LIBATOMIC )
set(system_libs ${system_libs} atomic)
endif()
set(system_libs ${system_libs} ${LLVM_PTHREAD_LIB})
if ( LLVM_ENABLE_ZLIB AND HAVE_LIBZ )
set(system_libs ${system_libs} z)
endif()
if( UNIX AND NOT (BEOS OR HAIKU) )
set(system_libs ${system_libs} m)
endif()
endif( MSVC OR MINGW )
add_llvm_library(LLVMSupport
AMDGPUMetadata.cpp
APFloat.cpp
APInt.cpp
APSInt.cpp
ARMBuildAttrs.cpp
ARMAttributeParser.cpp
ARMWinEH.cpp
Allocator.cpp
BinaryStreamError.cpp
BinaryStreamReader.cpp
BinaryStreamRef.cpp
BinaryStreamWriter.cpp
BlockFrequency.cpp
BranchProbability.cpp
CachePruning.cpp
circular_raw_ostream.cpp
Chrono.cpp
COM.cpp
CodeGenCoverage.cpp
CommandLine.cpp
Compression.cpp
ConvertUTF.cpp
ConvertUTFWrapper.cpp
CrashRecoveryContext.cpp
DataExtractor.cpp
Debug.cpp
DebugCounter.cpp
DeltaAlgorithm.cpp
DAGDeltaAlgorithm.cpp
Error.cpp
ErrorHandling.cpp
FileUtilities.cpp
FileOutputBuffer.cpp
FoldingSet.cpp
FormattedStream.cpp
FormatVariadic.cpp
GlobPattern.cpp
GraphWriter.cpp
Hashing.cpp
IntEqClasses.cpp
IntervalMap.cpp
JamCRC.cpp
KnownBits.cpp
LEB128.cpp
LineIterator.cpp
Locale.cpp
LockFileManager.cpp
LowLevelType.cpp
ManagedStatic.cpp
MathExtras.cpp
MemoryBuffer.cpp
MD5.cpp
NativeFormatting.cpp
Options.cpp
Parallel.cpp
PluginLoader.cpp
PrettyStackTrace.cpp
RandomNumberGenerator.cpp
Regex.cpp
ScaledNumber.cpp
ScopedPrinter.cpp
SHA1.cpp
SmallPtrSet.cpp
SmallVector.cpp
SourceMgr.cpp
SpecialCaseList.cpp
Statistic.cpp
StringExtras.cpp
StringMap.cpp
StringPool.cpp
StringSaver.cpp
StringRef.cpp
SystemUtils.cpp
TarWriter.cpp
TargetParser.cpp
ThreadPool.cpp
Timer.cpp
ToolOutputFile.cpp
TrigramIndex.cpp
Triple.cpp
Twine.cpp
Unicode.cpp
YAMLParser.cpp
YAMLTraits.cpp
raw_os_ostream.cpp
raw_ostream.cpp
regcomp.c
regerror.c
regexec.c
regfree.c
regstrlcpy.c
xxhash.cpp
# System
Atomic.cpp
DynamicLibrary.cpp
Errno.cpp
Host.cpp
Memory.cpp
Mutex.cpp
Path.cpp
Process.cpp
Program.cpp
RWMutex.cpp
Signals.cpp
TargetRegistry.cpp
ThreadLocal.cpp
Threading.cpp
Valgrind.cpp
Watchdog.cpp
ADDITIONAL_HEADER_DIRS
Unix
Windows
${LLVM_MAIN_INCLUDE_DIR}/llvm/ADT
${LLVM_MAIN_INCLUDE_DIR}/llvm/Support
${Backtrace_INCLUDE_DIRS}
LINK_LIBS ${system_libs}
)
set_property(TARGET LLVMSupport PROPERTY LLVM_SYSTEM_LIBS "${system_libs}")