[all-commits] [llvm/llvm-project] 1b7886: [X32][CET] Fix handling of indirect branches

[Harald van Dijk via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 1b788607f549321ef1e8343554b432db07ba3fe6
      https://github.com/llvm/llvm-project/commit/1b788607f549321ef1e8343554b432db07ba3fe6
  Author: Harald van Dijk <harald at gigawatt.nl>
  Date:   2021-04-29 (Thu, 29 Apr 2021)

  Changed paths:
    M llvm/lib/Target/X86/X86ISelDAGToDAG.cpp
    M llvm/test/CodeGen/X86/indirect-branch-tracking.ll

  Log Message:
  -----------
  [X32][CET] Fix handling of indirect branches

As X32 uses 32-bit pointers without having 32-bit indirect branch
instructions, we need to fix up indirect branches by extending the
branch targets to 64 bits. This was already done for BRIND but not yet
for NT_BRIND. The same logic works for both, so this applies that
existing logic to NT_BRIND as well.

Reviewed By: MaskRay

Differential Revision: https://reviews.llvm.org/D101499