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llvm-mirror/lib/XRay/CMakeLists.txt
Dean Michael Berris 76f5aab534 [XRay] Use FDR Records+Visitors for Trace Loading
Summary:
In this change, we overhaul the implementation for loading
`llvm::xray::Trace` objects from files by using the combination of
specific FDR Record types and visitors breaking up the logic to
reconstitute an execution trace from flight-data recorder mode traces.

This change allows us to handle out-of-temporal order blocks as written
in files, and more consistently recreate an execution trace spanning
multiple blocks and threads. To do this, we use the `WallclockRecord`
associated with each block to maintain temporal order of blocks, before
attempting to recreate an execution trace.

The new addition in this change is the `TraceExpander` type which can be
thought of as a decompression/decoding routine. This allows us to
maintain the state of an execution environment (thread+process) and
create `XRayRecord` instances that fit nicely into the `Trace`
container. We don't have a specific unit test for the TraceExpander
type, since the end-to-end tests for the `llvm-xray convert` tools
already cover precisely this codepath.

This change completes the refactoring started with D50441.

Depends on D51911.

Reviewers: mboerger, eizan

Subscribers: mgorny, hiraditya, mgrang, llvm-commits

Differential Revision: https://reviews.llvm.org/D51912

llvm-svn: 341906
2018-09-11 06:45:59 +00:00

29 lines
493 B
CMake

add_llvm_library(LLVMXRay
BlockIndexer.cpp
BlockPrinter.cpp
BlockVerifier.cpp
FDRRecordProducer.cpp
FDRRecords.cpp
FDRTraceExpander.cpp
FDRTraceWriter.cpp
FileHeaderReader.cpp
InstrumentationMap.cpp
LogBuilderConsumer.cpp
Profile.cpp
RecordInitializer.cpp
RecordPrinter.cpp
Trace.cpp
ADDITIONAL_HEADER_DIRS
${LLVM_MAIN_INCLUDE_DIR}/llvm/ADT
${LLVM_MAIN_INCLUDE_DIR}/llvm/XRay
DEPENDS
LLVMSupport
LLVMObject
LINK_LIBS
LLVMSupport
LLVMObject
)