[PATCH] D79537: Add NoMerge MIFlag to avoid MIR branch folding

[Zequan Wu via Phabricator via llvm-commits]

zequanwu updated this revision to Diff 263312.
zequanwu added a comment.
Herald added subscribers: luismarques, apazos, sameer.abuasal, pzheng, s.egerton, lenary, Jim, jocewei, PkmX, the_o, brucehoult, MartinMosbeck, rogfer01, edward-jones, zzheng, MaskRay, niosHD, sabuasal, simoncook, johnrusso, rbar, asb, kbarton, nemanjai.

Handle `nomerge` flag in `LowerCall` at targets AArch64, ARM, PowerPC, RISCV, and add test cases for each target.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D79537/new/

https://reviews.llvm.org/D79537

Files:
  llvm/include/llvm/CodeGen/MachineInstr.h
  llvm/include/llvm/CodeGen/SelectionDAG.h
  llvm/include/llvm/CodeGen/TargetLowering.h
  llvm/lib/CodeGen/BranchFolding.cpp
  llvm/lib/CodeGen/MIRPrinter.cpp
  llvm/lib/CodeGen/MachineInstr.cpp
  llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
  llvm/lib/Target/AArch64/AArch64ISelLowering.cpp
  llvm/lib/Target/ARM/ARMISelLowering.cpp
  llvm/lib/Target/PowerPC/PPCISelLowering.cpp
  llvm/lib/Target/PowerPC/PPCISelLowering.h
  llvm/lib/Target/RISCV/RISCVISelLowering.cpp
  llvm/lib/Target/X86/X86ISelLowering.cpp
  llvm/test/CodeGen/AArch64/nomerge.ll
  llvm/test/CodeGen/ARM/nomerge.ll
  llvm/test/CodeGen/PowerPC/nomerge.ll
  llvm/test/CodeGen/RISCV/nomerge.ll
  llvm/test/CodeGen/X86/nomerge.ll

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