[PATCH] D54210: [Hexagon] Implement noreturn optimization

[Brendon Cahoon via Phabricator via llvm-commits]

bcahoon created this revision.
bcahoon added reviewers: kparzysz, sgundapa.
Herald added subscribers: llvm-commits, hiraditya.

Eliminate the stack in functions with the noreturn nounwind attributes, and the noreturn-stack-elim target feature is enabled. This reduces the code size and stack space needed for noreturn functions.


Repository:
  rL LLVM

https://reviews.llvm.org/D54210

Files:
  llvm/lib/Target/Hexagon/Hexagon.td
  llvm/lib/Target/Hexagon/HexagonFrameLowering.cpp
  llvm/lib/Target/Hexagon/HexagonFrameLowering.h
  llvm/lib/Target/Hexagon/HexagonSubtarget.h
  llvm/test/CodeGen/Hexagon/noreturn-stack-elim.ll

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