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#include "llvm/Transforms/IPO/SCCP.h"
#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/Transforms/IPO.h"
#include "llvm/Transforms/Scalar/SCCP.h"
using namespace llvm;
PreservedAnalyses IPSCCPPass::run(Module &M, ModuleAnalysisManager &AM) {
const DataLayout &DL = M.getDataLayout();
auto &TLI = AM.getResult<TargetLibraryAnalysis>(M);
if (!runIPSCCP(M, DL, &TLI))
return PreservedAnalyses::all();
return PreservedAnalyses::none();
}
namespace {
//===--------------------------------------------------------------------===//
//
/// IPSCCP Class - This class implements interprocedural Sparse Conditional
/// Constant Propagation.
///
class IPSCCPLegacyPass : public ModulePass {
public:
static char ID;
IPSCCPLegacyPass() : ModulePass(ID) {
initializeIPSCCPLegacyPassPass(*PassRegistry::getPassRegistry());
}
bool runOnModule(Module &M) override {
if (skipModule(M))
return false;
const DataLayout &DL = M.getDataLayout();
const TargetLibraryInfo *TLI =
&getAnalysis<TargetLibraryInfoWrapperPass>().getTLI();
return runIPSCCP(M, DL, TLI);
}
void getAnalysisUsage(AnalysisUsage &AU) const override {
AU.addRequired<TargetLibraryInfoWrapperPass>();
}
};
} // end anonymous namespace
char IPSCCPLegacyPass::ID = 0;
INITIALIZE_PASS_BEGIN(IPSCCPLegacyPass, "ipsccp",
"Interprocedural Sparse Conditional Constant Propagation",
false, false)
INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfoWrapperPass)
INITIALIZE_PASS_END(IPSCCPLegacyPass, "ipsccp",
"Interprocedural Sparse Conditional Constant Propagation",
false, false)
// createIPSCCPPass - This is the public interface to this file.
ModulePass *llvm::createIPSCCPPass() { return new IPSCCPLegacyPass(); }
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