[PATCH] D143204: Add a type_checked_load_relative to support relative function pointer tables

[Arnold Schwaighofer via Phabricator via llvm-commits]

aschwaighofer created this revision.
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This adds a type_checked_load_relative intrinsic whose semantics it is to
load a relative function pointer.

A relative function pointer is a pointer to a 32bit value that when
added to its address yields the address of the function.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D143204

Files:
  llvm/docs/LangRef.rst
  llvm/include/llvm/IR/Intrinsics.td
  llvm/lib/Analysis/ModuleSummaryAnalysis.cpp
  llvm/lib/Analysis/TypeMetadataUtils.cpp
  llvm/lib/LTO/LTO.cpp
  llvm/lib/Transforms/IPO/GlobalDCE.cpp
  llvm/lib/Transforms/IPO/GlobalSplit.cpp
  llvm/lib/Transforms/IPO/ThinLTOBitcodeWriter.cpp
  llvm/lib/Transforms/IPO/WholeProgramDevirt.cpp
  llvm/test/Transforms/WholeProgramDevirt/devirt-single-impl-check-relative.ll

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