//
//===----------------------------------------------------------------------===//
-#define DEBUG_TYPE "inline-cost"
#include "llvm/Analysis/InlineCost.h"
#include "llvm/ADT/STLExtras.h"
#include "llvm/ADT/SetVector.h"
using namespace llvm;
+#define DEBUG_TYPE "inline-cost"
+
STATISTIC(NumCallsAnalyzed, "Number of call sites analyzed");
namespace {
void disableSROA(Value *V);
void accumulateSROACost(DenseMap<Value *, int>::iterator CostIt,
int InstructionCost);
- bool handleSROACandidate(bool IsSROAValid,
- DenseMap<Value *, int>::iterator CostIt,
- int InstructionCost);
bool isGEPOffsetConstant(GetElementPtrInst &GEP);
bool accumulateGEPOffset(GEPOperator &GEP, APInt &Offset);
bool simplifyCallSite(Function *F, CallSite CS);
SROACostSavings += InstructionCost;
}
-/// \brief Helper for the common pattern of handling a SROA candidate.
-/// Either accumulates the cost savings if the SROA remains valid, or disables
-/// SROA for the candidate.
-bool CallAnalyzer::handleSROACandidate(bool IsSROAValid,
- DenseMap<Value *, int>::iterator CostIt,
- int InstructionCost) {
- if (IsSROAValid) {
- accumulateSROACost(CostIt, InstructionCost);
- return true;
- }
-
- disableSROA(CostIt);
- return false;
-}
-
/// \brief Check whether a GEP's indices are all constant.
///
/// Respects any simplified values known during the analysis of this callsite.
/// no constant offsets applied.
ConstantInt *CallAnalyzer::stripAndComputeInBoundsConstantOffsets(Value *&V) {
if (!DL || !V->getType()->isPointerTy())
- return 0;
+ return nullptr;
unsigned IntPtrWidth = DL->getPointerSizeInBits();
APInt Offset = APInt::getNullValue(IntPtrWidth);
do {
if (GEPOperator *GEP = dyn_cast<GEPOperator>(V)) {
if (!GEP->isInBounds() || !accumulateGEPOffset(*GEP, Offset))
- return 0;
+ return nullptr;
V = GEP->getPointerOperand();
} else if (Operator::getOpcode(V) == Instruction::BitCast) {
V = cast<Operator>(V)->getOperand(0);