//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "inline"
#include "llvm/Transforms/IPO.h"
+#include "llvm/Analysis/AssumptionCache.h"
#include "llvm/Analysis/CallGraph.h"
#include "llvm/Analysis/InlineCost.h"
+#include "llvm/Analysis/TargetLibraryInfo.h"
#include "llvm/IR/CallSite.h"
#include "llvm/IR/CallingConv.h"
#include "llvm/IR/DataLayout.h"
using namespace llvm;
+#define DEBUG_TYPE "inline"
+
namespace {
/// \brief Actual inliner pass implementation.
InlineCostAnalysis *ICA;
public:
- SimpleInliner() : Inliner(ID), ICA(0) {
+ SimpleInliner() : Inliner(ID), ICA(nullptr) {
initializeSimpleInlinerPass(*PassRegistry::getPassRegistry());
}
SimpleInliner(int Threshold)
- : Inliner(ID, Threshold, /*InsertLifetime*/ true), ICA(0) {
+ : Inliner(ID, Threshold, /*InsertLifetime*/ true), ICA(nullptr) {
initializeSimpleInlinerPass(*PassRegistry::getPassRegistry());
}
void getAnalysisUsage(AnalysisUsage &AU) const override;
};
+static int computeThresholdFromOptLevels(unsigned OptLevel,
+ unsigned SizeOptLevel) {
+ if (OptLevel > 2)
+ return 275;
+ if (SizeOptLevel == 1) // -Os
+ return 75;
+ if (SizeOptLevel == 2) // -Oz
+ return 25;
+ return 225;
+}
+
} // end anonymous namespace
char SimpleInliner::ID = 0;
INITIALIZE_PASS_BEGIN(SimpleInliner, "inline",
"Function Integration/Inlining", false, false)
+INITIALIZE_PASS_DEPENDENCY(AssumptionCacheTracker)
INITIALIZE_PASS_DEPENDENCY(CallGraphWrapperPass)
INITIALIZE_PASS_DEPENDENCY(InlineCostAnalysis)
+INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfoWrapperPass)
INITIALIZE_PASS_END(SimpleInliner, "inline",
"Function Integration/Inlining", false, false)
return new SimpleInliner(Threshold);
}
+Pass *llvm::createFunctionInliningPass(unsigned OptLevel,
+ unsigned SizeOptLevel) {
+ return new SimpleInliner(
+ computeThresholdFromOptLevels(OptLevel, SizeOptLevel));
+}
+
bool SimpleInliner::runOnSCC(CallGraphSCC &SCC) {
ICA = &getAnalysis<InlineCostAnalysis>();
return Inliner::runOnSCC(SCC);