#include "llvm/Pass.h"
namespace llvm {
- class LibCallInfo;
- struct LibCallFunctionInfo;
-
- /// LibCallAliasAnalysis - Alias analysis driven from LibCallInfo.
- struct LibCallAliasAnalysis : public FunctionPass, public AliasAnalysis {
- static char ID; // Class identification
-
- LibCallInfo *LCI;
-
- explicit LibCallAliasAnalysis(LibCallInfo *LC = nullptr)
- : FunctionPass(ID), LCI(LC) {
- initializeLibCallAliasAnalysisPass(*PassRegistry::getPassRegistry());
- }
- explicit LibCallAliasAnalysis(char &ID, LibCallInfo *LC)
- : FunctionPass(ID), LCI(LC) {
- initializeLibCallAliasAnalysisPass(*PassRegistry::getPassRegistry());
- }
- ~LibCallAliasAnalysis() override;
-
- ModRefResult getModRefInfo(ImmutableCallSite CS,
- const MemoryLocation &Loc) override;
-
- ModRefResult getModRefInfo(ImmutableCallSite CS1,
- ImmutableCallSite CS2) override {
- // TODO: Could compare two direct calls against each other if we cared to.
- return AliasAnalysis::getModRefInfo(CS1, CS2);
- }
-
- void getAnalysisUsage(AnalysisUsage &AU) const override;
-
- bool runOnFunction(Function &F) override;
-
- /// getAdjustedAnalysisPointer - This method is used when a pass implements
- /// an analysis interface through multiple inheritance. If needed, it
- /// should override this to adjust the this pointer as needed for the
- /// specified pass info.
- void *getAdjustedAnalysisPointer(const void *PI) override {
- if (PI == &AliasAnalysis::ID)
- return (AliasAnalysis*)this;
- return this;
- }
-
- private:
- ModRefResult AnalyzeLibCallDetails(const LibCallFunctionInfo *FI,
- ImmutableCallSite CS,
- const MemoryLocation &Loc);
- };
-} // namespace llvm
+
+class LibCallInfo;
+struct LibCallFunctionInfo;
+
+/// Alias analysis driven from LibCallInfo.
+struct LibCallAliasAnalysis : public FunctionPass, public AliasAnalysis {
+ static char ID; // Class identification
+
+ LibCallInfo *LCI;
+
+ explicit LibCallAliasAnalysis(LibCallInfo *LC = nullptr)
+ : FunctionPass(ID), LCI(LC) {
+ initializeLibCallAliasAnalysisPass(*PassRegistry::getPassRegistry());
+ }
+ explicit LibCallAliasAnalysis(char &ID, LibCallInfo *LC)
+ : FunctionPass(ID), LCI(LC) {
+ initializeLibCallAliasAnalysisPass(*PassRegistry::getPassRegistry());
+ }
+ ~LibCallAliasAnalysis() override;
+
+ ModRefInfo getModRefInfo(ImmutableCallSite CS,
+ const MemoryLocation &Loc) override;
+
+ ModRefInfo getModRefInfo(ImmutableCallSite CS1,
+ ImmutableCallSite CS2) override {
+ // TODO: Could compare two direct calls against each other if we cared to.
+ return AliasAnalysis::getModRefInfo(CS1, CS2);
+ }
+
+ void getAnalysisUsage(AnalysisUsage &AU) const override;
+
+ bool runOnFunction(Function &F) override;
+
+ /// This method is used when a pass implements an analysis interface through
+ /// multiple inheritance.
+ ///
+ /// If needed, it should override this to adjust the this pointer as needed
+ /// for the specified pass info.
+ void *getAdjustedAnalysisPointer(const void *PI) override {
+ if (PI == &AliasAnalysis::ID)
+ return (AliasAnalysis *)this;
+ return this;
+ }
+
+private:
+ ModRefInfo AnalyzeLibCallDetails(const LibCallFunctionInfo *FI,
+ ImmutableCallSite CS,
+ const MemoryLocation &Loc);
+};
+
+/// Create an alias analysis pass that knows about the semantics of a set of
+/// libcalls specified by LCI.
+///
+/// The newly constructed pass takes ownership of the pointer that is provided.
+FunctionPass *createLibCallAliasAnalysisPass(LibCallInfo *LCI);
+
+} // End of llvm namespace
#endif