[PATCH] D113001: [NVPTX] Copy machine operand flags in TII::insertBranch

[Andrew Savonichev via Phabricator via llvm-commits]

asavonic created this revision.
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Before this patch, flags such as undef were dropped by TII::insertBranch 
(used by BranchFolding pass), resulting in the following error from 
machine verifier:

  - Bad machine code: Reading virtual register without a def ***
- function:    hoge
- basic block: %bb.0 bb (0x562e9c240e68)
- instruction: CBranch %2:int1regs, %bb.3          // <--- no undef flag
- operand 0:   %2:int1regs


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D113001

Files:
  llvm/lib/Target/NVPTX/NVPTXInstrInfo.cpp
  llvm/test/CodeGen/NVPTX/branch-fold.ll
  llvm/test/CodeGen/NVPTX/branch-fold.mir

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