//===----------------------------------------------------------------------===//
//
// This file implements a custom inliner that handles only functions that
-// are markes as "always inline".
+// are marked as "always inline".
//
//===----------------------------------------------------------------------===//
#include "llvm/Module.h"
#include "llvm/Type.h"
#include "llvm/Analysis/CallGraph.h"
+#include "llvm/Analysis/InlineCost.h"
#include "llvm/Support/CallSite.h"
-#include "llvm/Support/Compiler.h"
#include "llvm/Transforms/IPO.h"
#include "llvm/Transforms/IPO/InlinerPass.h"
-#include "llvm/Transforms/Utils/InlineCost.h"
+#include "llvm/Target/TargetData.h"
#include "llvm/ADT/SmallPtrSet.h"
using namespace llvm;
namespace {
// AlwaysInliner only inlines functions that are mark as "always inline".
- class VISIBILITY_HIDDEN AlwaysInliner : public Inliner {
+ class AlwaysInliner : public Inliner {
// Functions that are never inlined
- SmallPtrSet<const Function*, 16> NeverInline;
+ SmallPtrSet<const Function*, 16> NeverInline;
InlineCostAnalyzer CA;
public:
- // Use extremely low threshold.
- AlwaysInliner() : Inliner(&ID, -2000000000) {}
+ // Use extremely low threshold.
+ AlwaysInliner() : Inliner(ID, -2000000000) {
+ initializeAlwaysInlinerPass(*PassRegistry::getPassRegistry());
+ }
static char ID; // Pass identification, replacement for typeid
- int getInlineCost(CallSite CS) {
+ InlineCost getInlineCost(CallSite CS) {
return CA.getInlineCost(CS, NeverInline);
}
float getInlineFudgeFactor(CallSite CS) {
return CA.getInlineFudgeFactor(CS);
}
+ void resetCachedCostInfo(Function *Caller) {
+ CA.resetCachedCostInfo(Caller);
+ }
+ void growCachedCostInfo(Function* Caller, Function* Callee) {
+ CA.growCachedCostInfo(Caller, Callee);
+ }
+ virtual bool doFinalization(CallGraph &CG) {
+ return removeDeadFunctions(CG, &NeverInline);
+ }
virtual bool doInitialization(CallGraph &CG);
+ void releaseMemory() {
+ CA.clear();
+ }
};
}
char AlwaysInliner::ID = 0;
-static RegisterPass<AlwaysInliner>
-X("always-inline", "Inliner that handles always_inline functions");
+INITIALIZE_PASS_BEGIN(AlwaysInliner, "always-inline",
+ "Inliner for always_inline functions", false, false)
+INITIALIZE_AG_DEPENDENCY(CallGraph)
+INITIALIZE_PASS_END(AlwaysInliner, "always-inline",
+ "Inliner for always_inline functions", false, false)
Pass *llvm::createAlwaysInlinerPass() { return new AlwaysInliner(); }
-// doInitialization - Initializes the vector of functions that have not
+// doInitialization - Initializes the vector of functions that have not
// been annotated with the "always inline" attribute.
bool AlwaysInliner::doInitialization(CallGraph &CG) {
-
+ CA.setTargetData(getAnalysisIfAvailable<TargetData>());
+
Module &M = CG.getModule();
-
+
for (Module::iterator I = M.begin(), E = M.end();
I != E; ++I)
- if (!I->isDeclaration() && I->getNotes() != FN_NOTE_AlwaysInline)
+ if (!I->isDeclaration() && !I->hasFnAttr(Attribute::AlwaysInline))
NeverInline.insert(I);
return false;
}
-