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99cb989593
Summary: The target frame lowering's concrete type is always known in RegisterInfo, yet it's only sometimes devirtualized through a static_cast. This change adds an auto-generated static function <Target>GenRegisterInfo::getFrameLowering(const MachineFunction &MF) which does this devirtualization, and uses this function in all targets which can. This change was suggested by sunfish in D11070 for WebAssembly, I figure that I may as well improve the other targets while I'm here. Subscribers: sunfish, ted, llvm-commits, jfb Differential Revision: http://reviews.llvm.org/D11093 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@241921 91177308-0d34-0410-b5e6-96231b3b80d8
To-do ----- * Instruction encodings * Tailcalls * Investigate loop alignment * Add builtins