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Import llvm::SmallPtrSet.

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This commit is contained in:
Peter Johnson
2015-08-27 22:16:56 -07:00
parent 330ba39939
commit 86445b6670
4 changed files with 768 additions and 2 deletions
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5
include/llvm/DenseMapInfo.h
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@@ -14,6 +14,7 @@
#ifndef LLVM_ADT_DENSEMAPINFO_H
#define LLVM_ADT_DENSEMAPINFO_H
#include "llvm/PointerLikeTypeTraits.h"
#include "llvm/type_traits.h"
namespace llvm {
@@ -31,12 +32,12 @@ template<typename T>
struct DenseMapInfo<T*> {
static inline T* getEmptyKey() {
uintptr_t Val = static_cast<uintptr_t>(-1);
Val <<= 2;
Val <<= PointerLikeTypeTraits<T*>::NumLowBitsAvailable;
return reinterpret_cast<T*>(Val);
}
static inline T* getTombstoneKey() {
uintptr_t Val = static_cast<uintptr_t>(-2);
Val <<= 2;
Val <<= PointerLikeTypeTraits<T*>::NumLowBitsAvailable;
return reinterpret_cast<T*>(Val);
}
static unsigned getHashValue(const T *PtrVal) {