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Add some functionality to the IntrinsicInst class and some comments
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@25289 91177308-0d34-0410-b5e6-96231b3b80d8
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@ -30,6 +30,9 @@
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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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@ -40,6 +43,23 @@ namespace llvm {
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/// casts from the specified value, returning the original uncasted value.
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/// Note that the returned value is guaranteed to have pointer type.
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static Value *StripPointerCasts(Value *Ptr);
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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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