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8f5a7d69cc
This replaces the __stack_pointer variable which was allocated in linear memory. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@296201 91177308-0d34-0410-b5e6-96231b3b80d8
108 lines
3.5 KiB
C++
108 lines
3.5 KiB
C++
//===-- llvm/CodeGen/MachineModuleInfoImpls.h -------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines object-file format specific implementations of
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// MachineModuleInfoImpl.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_CODEGEN_MACHINEMODULEINFOIMPLS_H
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#define LLVM_CODEGEN_MACHINEMODULEINFOIMPLS_H
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#include "llvm/CodeGen/ValueTypes.h"
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#include "llvm/CodeGen/MachineModuleInfo.h"
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namespace llvm {
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class MCSymbol;
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/// MachineModuleInfoMachO - This is a MachineModuleInfoImpl implementation
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/// for MachO targets.
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class MachineModuleInfoMachO : public MachineModuleInfoImpl {
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/// GVStubs - Darwin '$non_lazy_ptr' stubs. The key is something like
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/// "Lfoo$non_lazy_ptr", the value is something like "_foo". The extra bit
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/// is true if this GV is external.
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DenseMap<MCSymbol *, StubValueTy> GVStubs;
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/// ThreadLocalGVStubs - Darwin '$non_lazy_ptr' stubs. The key is something
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/// like "Lfoo$non_lazy_ptr", the value is something like "_foo". The extra
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/// bit is true if this GV is external.
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DenseMap<MCSymbol *, StubValueTy> ThreadLocalGVStubs;
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virtual void anchor(); // Out of line virtual method.
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public:
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MachineModuleInfoMachO(const MachineModuleInfo &) {}
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StubValueTy &getGVStubEntry(MCSymbol *Sym) {
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assert(Sym && "Key cannot be null");
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return GVStubs[Sym];
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}
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StubValueTy &getThreadLocalGVStubEntry(MCSymbol *Sym) {
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assert(Sym && "Key cannot be null");
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return ThreadLocalGVStubs[Sym];
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}
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/// Accessor methods to return the set of stubs in sorted order.
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SymbolListTy GetGVStubList() { return getSortedStubs(GVStubs); }
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SymbolListTy GetThreadLocalGVStubList() {
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return getSortedStubs(ThreadLocalGVStubs);
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}
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};
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/// MachineModuleInfoELF - This is a MachineModuleInfoImpl implementation
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/// for ELF targets.
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class MachineModuleInfoELF : public MachineModuleInfoImpl {
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/// GVStubs - These stubs are used to materialize global addresses in PIC
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/// mode.
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DenseMap<MCSymbol *, StubValueTy> GVStubs;
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virtual void anchor(); // Out of line virtual method.
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public:
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MachineModuleInfoELF(const MachineModuleInfo &) {}
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StubValueTy &getGVStubEntry(MCSymbol *Sym) {
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assert(Sym && "Key cannot be null");
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return GVStubs[Sym];
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}
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/// Accessor methods to return the set of stubs in sorted order.
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SymbolListTy GetGVStubList() { return getSortedStubs(GVStubs); }
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};
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/// MachineModuleInfoWasm - This is a MachineModuleInfoImpl implementation
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/// for Wasm targets.
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class MachineModuleInfoWasm : public MachineModuleInfoImpl {
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/// GVStubs - These stubs are used to materialize global addresses in PIC
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/// mode.
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std::vector<MVT> Globals;
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unsigned StackPointerGlobal;
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virtual void anchor(); // Out of line virtual method.
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public:
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MachineModuleInfoWasm(const MachineModuleInfo &)
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: StackPointerGlobal(-1U) {}
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void addGlobal(MVT VT) { Globals.push_back(VT); }
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const std::vector<MVT> &getGlobals() const { return Globals; }
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bool hasStackPointerGlobal() const {
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return StackPointerGlobal != -1U;
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}
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unsigned getStackPointerGlobal() const {
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assert(hasStackPointerGlobal() && "Stack ptr global hasn't been set");
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return StackPointerGlobal;
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}
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void setStackPointerGlobal(unsigned Global) { StackPointerGlobal = Global; }
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};
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} // end namespace llvm
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#endif
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