[PATCH] D48674: SelectionDAGBuilder, mach-o: Skip trap after noreturn call (for Mach-O)

[Matthias Braun via Phabricator via llvm-commits]

MatzeB created this revision.
MatzeB added reviewers: t.p.northover, rnk, ab.
Herald added a subscriber: mcrosier.
Herald added a reviewer: javed.absar.

Add NoTrapAfterNoreturn target option which skips emission of traps
behind noreturn calls even if TrapUnreachable is enabled.

rdar://41530228


Repository:
  rL LLVM

https://reviews.llvm.org/D48674

Files:
  include/llvm/Target/TargetOptions.h
  lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
  lib/Target/AArch64/AArch64TargetMachine.cpp
  lib/Target/ARM/ARMTargetMachine.cpp
  lib/Target/X86/X86TargetMachine.cpp
  test/CodeGen/X86/unreachable-trap.ll

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