[PATCH] D67201: [Windows] Replace TrapUnreachable with an int3 insertion pass

[Reid Kleckner via Phabricator via llvm-commits]

rnk created this revision.
rnk added reviewers: probinson, hans, mstorsjo.
Herald added subscribers: jfb, hiraditya, mgorny.
Herald added a project: LLVM.

This is an alternative to D66980 <https://reviews.llvm.org/D66980>, which was reverted. Instead of
inserting a pseudo instruction that optionally expands to nothing, add a
pass that inserts int3 when appropriate after basic block layout.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D67201

Files:
  llvm/lib/Target/X86/CMakeLists.txt
  llvm/lib/Target/X86/X86.h
  llvm/lib/Target/X86/X86AvoidTrailingCall.cpp
  llvm/lib/Target/X86/X86TargetMachine.cpp
  llvm/test/CodeGen/WinEH/wineh-noret-cleanup.ll
  llvm/test/CodeGen/X86/br-fold.ll
  llvm/test/CodeGen/X86/catchpad-lifetime.ll
  llvm/test/CodeGen/X86/catchpad-regmask.ll
  llvm/test/CodeGen/X86/catchret-regmask.ll
  llvm/test/CodeGen/X86/empty-function.ll
  llvm/test/CodeGen/X86/funclet-layout.ll
  llvm/test/CodeGen/X86/noreturn-call-win64.ll
  llvm/test/CodeGen/X86/pr24374.ll
  llvm/test/CodeGen/X86/trap.ll
  llvm/test/CodeGen/X86/unreachable-trap.ll
  llvm/test/CodeGen/X86/win64-eh-empty-block.ll
  llvm/test/CodeGen/X86/win64_call_epi.ll
  llvm/test/CodeGen/X86/win64_eh.ll
  llvm/test/CodeGen/X86/wineh-coreclr.ll
  llvm/test/DebugInfo/COFF/local-variable-gap.ll

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