[all-commits] [llvm/llvm-project] 98eb8a: Add a type_checked_load_relative to support relati...

[Arnold Schwaighofer via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 98eb8abff6ad5c2e2f95fd1189b35a24f2800b32
      https://github.com/llvm/llvm-project/commit/98eb8abff6ad5c2e2f95fd1189b35a24f2800b32
  Author: Arnold Schwaighofer <aschwaighofer at apple.com>
  Date:   2023-06-29 (Thu, 29 Jun 2023)

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

  Log Message:
  -----------
  Add a type_checked_load_relative to support relative function pointer tables

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.

Differential Revision: https://reviews.llvm.org/D143204