diff options
Diffstat (limited to 'contrib/llvm/include/llvm/Instruction.h')
| -rw-r--r-- | contrib/llvm/include/llvm/Instruction.h | 26 |
1 files changed, 3 insertions, 23 deletions
diff --git a/contrib/llvm/include/llvm/Instruction.h b/contrib/llvm/include/llvm/Instruction.h index 934e890151f0..9c5ac4430f89 100644 --- a/contrib/llvm/include/llvm/Instruction.h +++ b/contrib/llvm/include/llvm/Instruction.h @@ -143,7 +143,7 @@ public: /// getMetadata - Get the metadata of given kind attached to this Instruction. /// If the metadata is not found then return null. - MDNode *getMetadata(const char *Kind) const { + MDNode *getMetadata(StringRef Kind) const { if (!hasMetadata()) return 0; return getMetadataImpl(Kind); } @@ -168,7 +168,7 @@ public: /// node. This updates/replaces metadata if already present, or removes it if /// Node is null. void setMetadata(unsigned KindID, MDNode *Node); - void setMetadata(const char *Kind, MDNode *Node); + void setMetadata(StringRef Kind, MDNode *Node); /// setDebugLoc - Set the debug location information for this instruction. void setDebugLoc(const DebugLoc &Loc) { DbgLoc = Loc; } @@ -185,7 +185,7 @@ private: // These are all implemented in Metadata.cpp. MDNode *getMetadataImpl(unsigned KindID) const; - MDNode *getMetadataImpl(const char *Kind) const; + MDNode *getMetadataImpl(StringRef Kind) const; void getAllMetadataImpl(SmallVectorImpl<std::pair<unsigned,MDNode*> > &)const; void getAllMetadataOtherThanDebugLocImpl(SmallVectorImpl<std::pair<unsigned, MDNode*> > &) const; @@ -244,26 +244,6 @@ public: return mayWriteToMemory() || mayThrow(); } - /// isSafeToSpeculativelyExecute - Return true if the instruction does not - /// have any effects besides calculating the result and does not have - /// undefined behavior. - /// - /// This method never returns true for an instruction that returns true for - /// mayHaveSideEffects; however, this method also does some other checks in - /// addition. It checks for undefined behavior, like dividing by zero or - /// loading from an invalid pointer (but not for undefined results, like a - /// shift with a shift amount larger than the width of the result). It checks - /// for malloc and alloca because speculatively executing them might cause a - /// memory leak. It also returns false for instructions related to control - /// flow, specifically terminators and PHI nodes. - /// - /// This method only looks at the instruction itself and its operands, so if - /// this method returns true, it is safe to move the instruction as long as - /// the correct dominance relationships for the operands and users hold. - /// However, this method can return true for instructions that read memory; - /// for such instructions, moving them may change the resulting value. - bool isSafeToSpeculativelyExecute() const; - /// clone() - Create a copy of 'this' instruction that is identical in all /// ways except the following: /// * The instruction has no parent |