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76f5aab534
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
29 lines
493 B
CMake
29 lines
493 B
CMake
add_llvm_library(LLVMXRay
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BlockIndexer.cpp
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BlockPrinter.cpp
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BlockVerifier.cpp
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FDRRecordProducer.cpp
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FDRRecords.cpp
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FDRTraceExpander.cpp
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FDRTraceWriter.cpp
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FileHeaderReader.cpp
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InstrumentationMap.cpp
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LogBuilderConsumer.cpp
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Profile.cpp
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RecordInitializer.cpp
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RecordPrinter.cpp
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Trace.cpp
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ADDITIONAL_HEADER_DIRS
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${LLVM_MAIN_INCLUDE_DIR}/llvm/ADT
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${LLVM_MAIN_INCLUDE_DIR}/llvm/XRay
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DEPENDS
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LLVMSupport
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LLVMObject
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LINK_LIBS
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LLVMSupport
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LLVMObject
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)
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