[PATCH] D149864: [M68k] Add new calling convention M68k_RTD

[Min-Yih Hsu via Phabricator via llvm-commits]

myhsu created this revision.
myhsu added reviewers: 0x59616e, RKSimon, craig.topper.
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`M68k_RTD` is really similar to X86's stdcall, in which callee pops the arguments from the stack.
This patch also improves how ExpandPseudo Pass handles popping stack at function returns in the absent of the RTD instruction.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D149864

Files:
  llvm/include/llvm/IR/CallingConv.h
  llvm/lib/Target/M68k/M68kExpandPseudo.cpp
  llvm/lib/Target/M68k/M68kISelLowering.cpp
  llvm/test/CodeGen/M68k/CConv/rtd-call.ll
  llvm/test/CodeGen/M68k/CConv/rtd-ret.ll

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