//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "inline"
#include "llvm/Transforms/IPO.h"
#include "llvm/Analysis/CallGraph.h"
#include "llvm/Analysis/InlineCost.h"
+#include "llvm/IR/CallSite.h"
#include "llvm/IR/CallingConv.h"
#include "llvm/IR/DataLayout.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Type.h"
-#include "llvm/Support/CallSite.h"
#include "llvm/Transforms/IPO/InlinerPass.h"
using namespace llvm;
+#define DEBUG_TYPE "inline"
+
namespace {
-/// \brief Actaul inliner pass implementation.
+/// \brief Actual inliner pass implementation.
///
/// The common implementation of the inlining logic is shared between this
/// inliner pass and the always inliner pass. The two passes use different cost
static char ID; // Pass identification, replacement for typeid
- InlineCost getInlineCost(CallSite CS) {
+ InlineCost getInlineCost(CallSite CS) override {
return ICA->getInlineCost(CS, getInlineThreshold(CS));
}
- virtual bool runOnSCC(CallGraphSCC &SCC);
- virtual void getAnalysisUsage(AnalysisUsage &AU) const;
+ bool runOnSCC(CallGraphSCC &SCC) override;
+ 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_AG_DEPENDENCY(CallGraph)
+INITIALIZE_PASS_DEPENDENCY(CallGraphWrapperPass)
INITIALIZE_PASS_DEPENDENCY(InlineCostAnalysis)
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);