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aa5b9c0f6f
be deleted. This will be reapplied as soon as possible and before the 3.6 branch date at any rate. Approved by Jim Grosbach, Lang Hames, Rafael Espindola. This reverts commits r215111, 215115, 215116, 215117, 215136. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@215154 91177308-0d34-0410-b5e6-96231b3b80d8
80 lines
3.0 KiB
C++
80 lines
3.0 KiB
C++
//===-- X86JITInfo.h - X86 implementation of the JIT interface --*- 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 contains the X86 implementation of the TargetJITInfo class.
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//
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//===----------------------------------------------------------------------===//
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#ifndef X86JITINFO_H
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#define X86JITINFO_H
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#include "llvm/CodeGen/JITCodeEmitter.h"
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#include "llvm/IR/Function.h"
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#include "llvm/Target/TargetJITInfo.h"
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namespace llvm {
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class X86Subtarget;
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class X86JITInfo : public TargetJITInfo {
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uintptr_t PICBase;
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char *TLSOffset;
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bool useSSE;
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public:
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explicit X86JITInfo(bool UseSSE);
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/// replaceMachineCodeForFunction - Make it so that calling the function
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/// whose machine code is at OLD turns into a call to NEW, perhaps by
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/// overwriting OLD with a branch to NEW. This is used for self-modifying
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/// code.
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///
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void replaceMachineCodeForFunction(void *Old, void *New) override;
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/// emitGlobalValueIndirectSym - Use the specified JITCodeEmitter object
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/// to emit an indirect symbol which contains the address of the specified
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/// ptr.
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void *emitGlobalValueIndirectSym(const GlobalValue* GV, void *ptr,
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JITCodeEmitter &JCE) override;
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// getStubLayout - Returns the size and alignment of the largest call stub
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// on X86.
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StubLayout getStubLayout() override;
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/// emitFunctionStub - Use the specified JITCodeEmitter object to emit a
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/// small native function that simply calls the function at the specified
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/// address.
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void *emitFunctionStub(const Function* F, void *Target,
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JITCodeEmitter &JCE) override;
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/// getPICJumpTableEntry - Returns the value of the jumptable entry for the
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/// specific basic block.
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uintptr_t getPICJumpTableEntry(uintptr_t BB, uintptr_t JTBase) override;
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/// getLazyResolverFunction - Expose the lazy resolver to the JIT.
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LazyResolverFn getLazyResolverFunction(JITCompilerFn) override;
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/// relocate - Before the JIT can run a block of code that has been emitted,
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/// it must rewrite the code to contain the actual addresses of any
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/// referenced global symbols.
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void relocate(void *Function, MachineRelocation *MR,
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unsigned NumRelocs, unsigned char* GOTBase) override;
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/// allocateThreadLocalMemory - Each target has its own way of
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/// handling thread local variables. This method returns a value only
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/// meaningful to the target.
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char* allocateThreadLocalMemory(size_t size) override;
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/// setPICBase / getPICBase - Getter / setter of PICBase, used to compute
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/// PIC jumptable entry.
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void setPICBase(uintptr_t Base) { PICBase = Base; }
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uintptr_t getPICBase() const { return PICBase; }
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};
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}
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#endif
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