InferAlignment.cpp File Reference

#include "llvm/Transforms/Scalar/InferAlignment.h"
#include "llvm/Analysis/AssumptionCache.h"
#include "llvm/Analysis/ValueTracking.h"
#include "llvm/IR/Instructions.h"
#include "llvm/IR/IntrinsicInst.h"
#include "llvm/Support/KnownBits.h"
#include "llvm/Transforms/Scalar.h"
#include "llvm/Transforms/Utils/Local.h"

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Functions
static bool	tryToImproveAlign (const DataLayout &DL, Instruction *I, function_ref< Align(Value *PtrOp, Align OldAlign, Align PrefAlign)> Fn)
bool	inferAlignment (Function &F, AssumptionCache &AC, DominatorTree &DT)

Function Documentation

inferAlignment()

bool inferAlignment	(	Function &	F,
		AssumptionCache &	AC,
		DominatorTree &	DT )

Definition at line 74 of file InferAlignment.cpp.

References Changed, llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::clear(), llvm::commonAlignment(), llvm::computeKnownBits(), llvm::KnownBits::countMinTrailingZeros(), DL, F, llvm::KnownBits::getBitWidth(), llvm::APInt::getLimitedValue(), llvm::Value::getType(), I, llvm::Value::MaxAlignmentExponent, llvm::Value::stripAndAccumulateConstantOffsets(), llvm::DenseMapBase< DerivedT, KeyT, ValueT, KeyInfoT, BucketT >::try_emplace(), llvm::tryEnforceAlignment(), and tryToImproveAlign().

Referenced by llvm::InferAlignmentPass::run().

tryToImproveAlign()

bool tryToImproveAlign ( const DataLayout & DL, Instruction * I, function_ref< Align(Value *PtrOp, Align OldAlign, Align PrefAlign)> Fn )

static

Definition at line 25 of file InferAlignment.cpp.

References llvm::cast(), DL, llvm::dyn_cast(), llvm::Type::getInt32Ty(), llvm::getLoadStoreAlignment(), llvm::getLoadStorePointerOperand(), llvm::getLoadStoreType(), I, II, llvm::setLoadStoreAlignment(), and llvm::Align::value().

Referenced by inferAlignment().