[all-commits] [llvm/llvm-project] 5e4063: [BOLT][BTI] Add MCPlusBuilder::addBTItoBBStart

[Gergely Bálint via All-commits]

  Branch: refs/heads/users/bgergely0/bolt-add-bti-to-bb
  Home:   https://github.com/llvm/llvm-project
  Commit: 5e40637d178f9f8d003ae02ab0fba2800aa8dbf6
      https://github.com/llvm/llvm-project/commit/5e40637d178f9f8d003ae02ab0fba2800aa8dbf6
  Author: Gergely Balint <gergely.balint at arm.com>
  Date:   2025-12-04 (Thu, 04 Dec 2025)

  Changed paths:
    M bolt/include/bolt/Core/MCPlusBuilder.h
    M bolt/lib/Target/AArch64/AArch64MCPlusBuilder.cpp
    M bolt/unittests/Core/MCPlusBuilder.cpp

  Log Message:
  -----------
  [BOLT][BTI] Add MCPlusBuilder::addBTItoBBStart

This function contains most of the logic for BTI:
- it takes the BasicBlock and the instruction used to jump to it.
- then it checks if the first non-pseudo instruction is a sufficient
landing pad for the used call.
- if not, it generates the correct BTI instruction.

Also introduce the isBTIVariantCoveringCall helper to simplify the logic.


  Commit: bb5e556c6d61464813261e195e5d599da8bfb310
      https://github.com/llvm/llvm-project/commit/bb5e556c6d61464813261e195e5d599da8bfb310
  Author: Gergely Balint <gergely.balint at arm.com>
  Date:   2025-12-05 (Fri, 05 Dec 2025)

  Changed paths:
    M bolt/include/bolt/Core/MCPlusBuilder.h
    M bolt/lib/Target/AArch64/AArch64MCPlusBuilder.cpp
    M bolt/unittests/Core/MCPlusBuilder.cpp

  Log Message:
  -----------
  [BOLT][BTI] rename addBTItoBBStart to insertBTI


Compare: https://github.com/llvm/llvm-project/compare/103728d47762...bb5e556c6d61

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