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b01bbdcc1a
so get rid of eh.selector.i64 and rename eh.selector.i32 to eh.selector. Likewise for eh.typeid.for. This aligns us with gcc, which always uses a 32 bit value for the selector on all platforms. My understanding is that the register allocator used to assert if the selector intrinsic size didn't match the pointer size, and this was the reason for introducing the two variants. However my testing shows that this is no longer the case (I fixed some bugs in selector lowering yesterday, and some more today in the fastisel path; these might have caused the original problems). git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@84106 91177308-0d34-0410-b5e6-96231b3b80d8
326 lines
12 KiB
C++
326 lines
12 KiB
C++
//===-- llvm/IntrinsicInst.h - Intrinsic Instruction Wrappers ---*- 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 classes that make it really easy to deal with intrinsic
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// functions with the isa/dyncast family of functions. In particular, this
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// allows you to do things like:
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//
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// if (MemCpyInst *MCI = dyn_cast<MemCpyInst>(Inst))
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// ... MCI->getDest() ... MCI->getSource() ...
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//
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// All intrinsic function calls are instances of the call instruction, so these
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// are all subclasses of the CallInst class. Note that none of these classes
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// has state or virtual methods, which is an important part of this gross/neat
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// hack working.
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//
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//===----------------------------------------------------------------------===//
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#ifndef LLVM_INTRINSICINST_H
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#define LLVM_INTRINSICINST_H
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#include "llvm/Constants.h"
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#include "llvm/Metadata.h"
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#include "llvm/Function.h"
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#include "llvm/Instructions.h"
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#include "llvm/Intrinsics.h"
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namespace llvm {
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/// IntrinsicInst - A useful wrapper class for inspecting calls to intrinsic
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/// functions. This allows the standard isa/dyncast/cast functionality to
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/// work with calls to intrinsic functions.
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class IntrinsicInst : public CallInst {
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IntrinsicInst(); // DO NOT IMPLEMENT
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IntrinsicInst(const IntrinsicInst&); // DO NOT IMPLEMENT
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void operator=(const IntrinsicInst&); // DO NOT IMPLEMENT
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public:
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/// getIntrinsicID - Return the intrinsic ID of this intrinsic.
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///
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Intrinsic::ID getIntrinsicID() const {
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return (Intrinsic::ID)getCalledFunction()->getIntrinsicID();
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}
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const IntrinsicInst *) { return true; }
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static inline bool classof(const CallInst *I) {
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if (const Function *CF = I->getCalledFunction())
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return CF->getIntrinsicID() != 0;
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return false;
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}
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static inline bool classof(const Value *V) {
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return isa<CallInst>(V) && classof(cast<CallInst>(V));
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}
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};
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/// DbgInfoIntrinsic - This is the common base class for debug info intrinsics
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///
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struct DbgInfoIntrinsic : public IntrinsicInst {
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const DbgInfoIntrinsic *) { return true; }
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static inline bool classof(const IntrinsicInst *I) {
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switch (I->getIntrinsicID()) {
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case Intrinsic::dbg_stoppoint:
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case Intrinsic::dbg_func_start:
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case Intrinsic::dbg_region_start:
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case Intrinsic::dbg_region_end:
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case Intrinsic::dbg_declare:
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return true;
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default: return false;
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}
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}
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static inline bool classof(const Value *V) {
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return isa<IntrinsicInst>(V) && classof(cast<IntrinsicInst>(V));
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}
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static Value *StripCast(Value *C);
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};
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/// DbgStopPointInst - This represents the llvm.dbg.stoppoint instruction.
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///
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struct DbgStopPointInst : public DbgInfoIntrinsic {
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Value *getLineValue() const { return const_cast<Value*>(getOperand(1)); }
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Value *getColumnValue() const { return const_cast<Value*>(getOperand(2)); }
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MDNode *getContext() const {
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return cast<MDNode>(getOperand(3));
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}
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unsigned getLine() const {
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return unsigned(cast<ConstantInt>(getOperand(1))->getZExtValue());
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}
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unsigned getColumn() const {
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return unsigned(cast<ConstantInt>(getOperand(2))->getZExtValue());
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}
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Value* getFileName() const;
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Value* getDirectory() const;
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const DbgStopPointInst *) { return true; }
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static inline bool classof(const IntrinsicInst *I) {
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return I->getIntrinsicID() == Intrinsic::dbg_stoppoint;
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}
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static inline bool classof(const Value *V) {
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return isa<IntrinsicInst>(V) && classof(cast<IntrinsicInst>(V));
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}
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};
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/// DbgFuncStartInst - This represents the llvm.dbg.func.start instruction.
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///
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struct DbgFuncStartInst : public DbgInfoIntrinsic {
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MDNode *getSubprogram() const { return cast<MDNode>(getOperand(1)); }
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const DbgFuncStartInst *) { return true; }
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static inline bool classof(const IntrinsicInst *I) {
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return I->getIntrinsicID() == Intrinsic::dbg_func_start;
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}
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static inline bool classof(const Value *V) {
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return isa<IntrinsicInst>(V) && classof(cast<IntrinsicInst>(V));
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}
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};
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/// DbgRegionStartInst - This represents the llvm.dbg.region.start
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/// instruction.
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struct DbgRegionStartInst : public DbgInfoIntrinsic {
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MDNode *getContext() const { return cast<MDNode>(getOperand(1)); }
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const DbgRegionStartInst *) { return true; }
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static inline bool classof(const IntrinsicInst *I) {
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return I->getIntrinsicID() == Intrinsic::dbg_region_start;
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}
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static inline bool classof(const Value *V) {
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return isa<IntrinsicInst>(V) && classof(cast<IntrinsicInst>(V));
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}
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};
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/// DbgRegionEndInst - This represents the llvm.dbg.region.end instruction.
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///
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struct DbgRegionEndInst : public DbgInfoIntrinsic {
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MDNode *getContext() const { return cast<MDNode>(getOperand(1)); }
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const DbgRegionEndInst *) { return true; }
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static inline bool classof(const IntrinsicInst *I) {
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return I->getIntrinsicID() == Intrinsic::dbg_region_end;
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}
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static inline bool classof(const Value *V) {
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return isa<IntrinsicInst>(V) && classof(cast<IntrinsicInst>(V));
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}
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};
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/// DbgDeclareInst - This represents the llvm.dbg.declare instruction.
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///
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struct DbgDeclareInst : public DbgInfoIntrinsic {
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Value *getAddress() const { return getOperand(1); }
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MDNode *getVariable() const { return cast<MDNode>(getOperand(2)); }
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const DbgDeclareInst *) { return true; }
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static inline bool classof(const IntrinsicInst *I) {
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return I->getIntrinsicID() == Intrinsic::dbg_declare;
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}
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static inline bool classof(const Value *V) {
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return isa<IntrinsicInst>(V) && classof(cast<IntrinsicInst>(V));
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}
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};
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/// MemIntrinsic - This is the common base class for memset/memcpy/memmove.
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///
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struct MemIntrinsic : public IntrinsicInst {
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Value *getRawDest() const { return const_cast<Value*>(getOperand(1)); }
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Value *getLength() const { return const_cast<Value*>(getOperand(3)); }
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ConstantInt *getAlignmentCst() const {
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return cast<ConstantInt>(const_cast<Value*>(getOperand(4)));
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}
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unsigned getAlignment() const {
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return getAlignmentCst()->getZExtValue();
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}
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/// getDest - This is just like getRawDest, but it strips off any cast
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/// instructions that feed it, giving the original input. The returned
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/// value is guaranteed to be a pointer.
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Value *getDest() const { return getRawDest()->stripPointerCasts(); }
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/// set* - Set the specified arguments of the instruction.
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///
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void setDest(Value *Ptr) {
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assert(getRawDest()->getType() == Ptr->getType() &&
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"setDest called with pointer of wrong type!");
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setOperand(1, Ptr);
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}
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void setLength(Value *L) {
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assert(getLength()->getType() == L->getType() &&
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"setLength called with value of wrong type!");
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setOperand(3, L);
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}
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void setAlignment(Constant* A) {
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setOperand(4, A);
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}
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const Type *getAlignmentType() const {
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return getOperand(4)->getType();
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}
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const MemIntrinsic *) { return true; }
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static inline bool classof(const IntrinsicInst *I) {
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switch (I->getIntrinsicID()) {
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case Intrinsic::memcpy:
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case Intrinsic::memmove:
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case Intrinsic::memset:
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return true;
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default: return false;
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}
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}
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static inline bool classof(const Value *V) {
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return isa<IntrinsicInst>(V) && classof(cast<IntrinsicInst>(V));
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}
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};
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/// MemSetInst - This class wraps the llvm.memset intrinsic.
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///
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struct MemSetInst : public MemIntrinsic {
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/// get* - Return the arguments to the instruction.
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///
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Value *getValue() const { return const_cast<Value*>(getOperand(2)); }
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void setValue(Value *Val) {
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assert(getValue()->getType() == Val->getType() &&
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"setSource called with pointer of wrong type!");
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setOperand(2, Val);
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}
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const MemSetInst *) { return true; }
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static inline bool classof(const IntrinsicInst *I) {
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return I->getIntrinsicID() == Intrinsic::memset;
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}
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static inline bool classof(const Value *V) {
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return isa<IntrinsicInst>(V) && classof(cast<IntrinsicInst>(V));
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}
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};
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/// MemTransferInst - This class wraps the llvm.memcpy/memmove intrinsics.
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///
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struct MemTransferInst : public MemIntrinsic {
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/// get* - Return the arguments to the instruction.
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///
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Value *getRawSource() const { return const_cast<Value*>(getOperand(2)); }
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/// getSource - This is just like getRawSource, but it strips off any cast
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/// instructions that feed it, giving the original input. The returned
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/// value is guaranteed to be a pointer.
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Value *getSource() const { return getRawSource()->stripPointerCasts(); }
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void setSource(Value *Ptr) {
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assert(getRawSource()->getType() == Ptr->getType() &&
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"setSource called with pointer of wrong type!");
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setOperand(2, Ptr);
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}
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const MemTransferInst *) { return true; }
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static inline bool classof(const IntrinsicInst *I) {
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return I->getIntrinsicID() == Intrinsic::memcpy ||
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I->getIntrinsicID() == Intrinsic::memmove;
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}
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static inline bool classof(const Value *V) {
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return isa<IntrinsicInst>(V) && classof(cast<IntrinsicInst>(V));
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}
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};
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/// MemCpyInst - This class wraps the llvm.memcpy intrinsic.
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///
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struct MemCpyInst : public MemTransferInst {
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const MemCpyInst *) { return true; }
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static inline bool classof(const IntrinsicInst *I) {
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return I->getIntrinsicID() == Intrinsic::memcpy;
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}
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static inline bool classof(const Value *V) {
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return isa<IntrinsicInst>(V) && classof(cast<IntrinsicInst>(V));
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}
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};
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/// MemMoveInst - This class wraps the llvm.memmove intrinsic.
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///
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struct MemMoveInst : public MemTransferInst {
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const MemMoveInst *) { return true; }
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static inline bool classof(const IntrinsicInst *I) {
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return I->getIntrinsicID() == Intrinsic::memmove;
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}
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static inline bool classof(const Value *V) {
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return isa<IntrinsicInst>(V) && classof(cast<IntrinsicInst>(V));
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}
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};
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/// EHSelectorInst - This represents the llvm.eh.selector instruction.
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///
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struct EHSelectorInst : public IntrinsicInst {
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// Methods for support type inquiry through isa, cast, and dyn_cast:
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static inline bool classof(const EHSelectorInst *) { return true; }
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static inline bool classof(const IntrinsicInst *I) {
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return I->getIntrinsicID() == Intrinsic::eh_selector;
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}
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static inline bool classof(const Value *V) {
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return isa<IntrinsicInst>(V) && classof(cast<IntrinsicInst>(V));
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}
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};
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}
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#endif
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