[PATCH] D69536: Recommit "Add a heap alloc site marker field to the ExtraInfo in MachineInstrs"

[Amy Huang via Phabricator via llvm-commits]

akhuang created this revision.
akhuang added a reviewer: rnk.
Herald added subscribers: llvm-commits, hiraditya, MatzeB.
Herald added a project: LLVM.

Fixes some things from original commit at https://reviews.llvm.org/D69136. The main
change is that the heap alloc marker is always stored as ExtraInfo in the machine
instruction instead of in the PointerSumType because it cannot hold more than
4 pointer types.

Add instruction marker to MachineInstr ExtraInfo. This does almost the
same thing as Pre/PostInstrSymbols, except that it doesn't create a label until
printing instructions. This allows for labels to be put around instructions that
are deleted/duplicated somewhere.
Use this marker to track heap alloc site call instructions.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D69536

Files:
  llvm/include/llvm/CodeGen/MachineFunction.h
  llvm/include/llvm/CodeGen/MachineInstr.h
  llvm/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
  llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.cpp
  llvm/lib/CodeGen/AsmPrinter/CodeViewDebug.h
  llvm/lib/CodeGen/MachineFunction.cpp
  llvm/lib/CodeGen/MachineInstr.cpp
  llvm/lib/CodeGen/SelectionDAG/FastISel.cpp
  llvm/lib/CodeGen/SelectionDAG/ScheduleDAGSDNodes.cpp
  llvm/test/CodeGen/X86/label-heapallocsite.ll
  llvm/test/CodeGen/X86/taildup-heapallocsite.ll
  llvm/unittests/CodeGen/MachineInstrTest.cpp

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