[PATCH] D134548: [NVPTX] Fix a segfault for bitcasted calls with byval params

[Luke Drummond via Phabricator via llvm-commits]

ldrumm created this revision.
ldrumm added reviewers: jholewinski, kovdan01, tra.
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  `getFunctionParamOptimizedAlign` was being passed a null function
    argument when getting the callee of a bitcasted function symbol. This is
    because `CallBase::getCalledFunction` does not look through bitcasts.
    
    There is already code to handle this case in
    `NVPTXTargetLowering::getArgumentAlignment`, which is now hoisted into
    an NVPTX util.
    
    The alignment computation now gracefully handles computing alignment of
    virtual functions with a check for null.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D134548

Files:
  llvm/lib/Target/NVPTX/NVPTXISelLowering.cpp
  llvm/lib/Target/NVPTX/NVPTXUtilities.cpp
  llvm/lib/Target/NVPTX/NVPTXUtilities.h
  llvm/test/CodeGen/NVPTX/call_bitcast_byval.ll

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