[PATCH] D146164: Fix nomerge attribute not working with __builtin_trap().

[Zequan Wu via Phabricator via cfe-commits]

zequanwu created this revision.
zequanwu added reviewers: hans, craig.topper.
Herald added subscribers: pengfei, hiraditya.
Herald added a project: All.
zequanwu requested review of this revision.
Herald added projects: clang, LLVM.
Herald added subscribers: llvm-commits, cfe-commits.

1. It fixes the problem that `llvm.trap()` not getting the nomerge attribute.
2. It sets nomerge flag for the node if the instruction has nomerge arrtibute.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D146164

Files:
  clang/lib/CodeGen/CGExpr.cpp
  clang/test/CodeGen/attr-nomerge.cpp
  llvm/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
  llvm/test/CodeGen/X86/nomerge.ll

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