[PATCH] D62532: [AIX] Implement function descriptor on SDAG

[Xiangling Liao via Phabricator via llvm-commits]

Xiangling_L created this revision.
Xiangling_L added reviewers: hubert.reinterpretcast, sfertile, jasonliu, hfinkel.
Xiangling_L added a project: LLVM.
Herald added subscribers: jsji, kbarton, hiraditya, nemanjai.

On AIX, for direct function call target, we create proper MCSymbol SDNode(e.g . ".foo") while constructing SDAG to replace original TargetGlobalAddress SDNode. Then down the path, we can take advantage of this MCSymbol.

And since -stop-after llc option is used to test MIR results in the LIT testcase, to be able to get a MCSymbolXCOFF in SDAG layer, an option "-init-MC" is added to use together with -stop-after/-stop-before option to force llc doing the target object file lowering.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D62532

Files:
  llvm/include/llvm/CodeGen/TargetPassConfig.h
  llvm/include/llvm/MC/MCSymbol.h
  llvm/include/llvm/MC/MCSymbolXCOFF.h
  llvm/lib/CodeGen/LLVMTargetMachine.cpp
  llvm/lib/CodeGen/SelectionDAG/FastISel.cpp
  llvm/lib/CodeGen/TargetPassConfig.cpp
  llvm/lib/MC/MCContext.cpp
  llvm/lib/Target/PowerPC/PPC.h
  llvm/lib/Target/PowerPC/PPCFastISel.cpp
  llvm/lib/Target/PowerPC/PPCISelLowering.cpp
  llvm/lib/Target/PowerPC/PPCInstr64Bit.td
  llvm/lib/Target/PowerPC/PPCInstrInfo.td
  llvm/test/CodeGen/PowerPC/test_call_aix.ll

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