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When a label is parsed, check if there is type information available for the label. If so, check if the symbol is a function. If the symbol is a function and we are in thumb mode and no explicit thumb_func has been emitted, adjust the symbol data to indicate that the function definition is a thumb function. The application of this inferencing is improved value handling in the object file (the required thumb bit is set on symbols which are thumb functions). It also helps improve compatibility with binutils. The one complication that arises from this handling is the MCAsmStreamer. The default implementation of getOrCreateSymbolData in MCStreamer does not support tracking the symbol data. In order to support the semantics of thumb functions, track symbol data in assembly streamer. Although O(n) in number of labels in the TU, this is already done in various other streamers and as such the memory overhead is not a practical concern in this scenario. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@204544 91177308-0d34-0410-b5e6-96231b3b80d8 |
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.. | ||
Analysis | ||
AsmParser | ||
Bitcode | ||
CodeGen | ||
DebugInfo | ||
ExecutionEngine | ||
IR | ||
IRReader | ||
LineEditor | ||
Linker | ||
LTO | ||
MC | ||
Object | ||
Option | ||
ProfileData | ||
Support | ||
TableGen | ||
Target | ||
Transforms | ||
CMakeLists.txt | ||
LLVMBuild.txt | ||
Makefile |