[PATCH] D107435: [PowerPC][RFC][1/n] Fix always unreachable `llvm_unreachable` path

[Kai Luo via Phabricator via llvm-commits]

lkail created this revision.
lkail added reviewers: jsji, shchenz, nemanjai, PowerPC.
Herald added subscribers: kbarton, hiraditya.
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This is the first step to enable PPC64 support huge frame size(>4G). `int x; !isInt<32>(x);` should be always evaluated false, so the guard code for frame size is impossible to hit.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D107435

Files:
  llvm/lib/Target/PowerPC/PPCFrameLowering.cpp
  llvm/lib/Target/PowerPC/PPCFrameLowering.h
  llvm/test/CodeGen/PowerPC/huge-frame-size.ll

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