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-rw-r--r--llvm/lib/Transforms/Scalar/SROA.cpp42
1 files changed, 22 insertions, 20 deletions
diff --git a/llvm/lib/Transforms/Scalar/SROA.cpp b/llvm/lib/Transforms/Scalar/SROA.cpp
index 1f9d08528ef..887818bfdde 100644
--- a/llvm/lib/Transforms/Scalar/SROA.cpp
+++ b/llvm/lib/Transforms/Scalar/SROA.cpp
@@ -3982,16 +3982,16 @@ bool SROA::splitAlloca(AllocaInst &AI, AllocaSlices &AS) {
if (!IsSorted)
std::sort(AS.begin(), AS.end());
- /// \brief Describes the allocas introduced by rewritePartition
- /// in order to migrate the debug info.
- struct Piece {
+ /// Describes the allocas introduced by rewritePartition in order to migrate
+ /// the debug info.
+ struct Fragment {
AllocaInst *Alloca;
uint64_t Offset;
uint64_t Size;
- Piece(AllocaInst *AI, uint64_t O, uint64_t S)
+ Fragment(AllocaInst *AI, uint64_t O, uint64_t S)
: Alloca(AI), Offset(O), Size(S) {}
};
- SmallVector<Piece, 4> Pieces;
+ SmallVector<Fragment, 4> Fragments;
// Rewrite each partition.
for (auto &P : AS.partitions()) {
@@ -4002,7 +4002,7 @@ bool SROA::splitAlloca(AllocaInst &AI, AllocaSlices &AS) {
uint64_t AllocaSize = DL.getTypeSizeInBits(NewAI->getAllocatedType());
// Don't include any padding.
uint64_t Size = std::min(AllocaSize, P.size() * SizeOfByte);
- Pieces.push_back(Piece(NewAI, P.beginOffset() * SizeOfByte, Size));
+ Fragments.push_back(Fragment(NewAI, P.beginOffset() * SizeOfByte, Size));
}
}
++NumPartitions;
@@ -4019,32 +4019,34 @@ bool SROA::splitAlloca(AllocaInst &AI, AllocaSlices &AS) {
auto *Expr = DbgDecl->getExpression();
DIBuilder DIB(*AI.getModule(), /*AllowUnresolved*/ false);
uint64_t AllocaSize = DL.getTypeSizeInBits(AI.getAllocatedType());
- for (auto Piece : Pieces) {
- // Create a piece expression describing the new partition or reuse AI's
+ for (auto Fragment : Fragments) {
+ // Create a fragment expression describing the new partition or reuse AI's
// expression if there is only one partition.
- auto *PieceExpr = Expr;
- if (Piece.Size < AllocaSize || Expr->isBitPiece()) {
+ auto *FragmentExpr = Expr;
+ if (Fragment.Size < AllocaSize || Expr->isFragment()) {
// If this alloca is already a scalar replacement of a larger aggregate,
- // Piece.Offset describes the offset inside the scalar.
- uint64_t Offset = Expr->isBitPiece() ? Expr->getBitPieceOffset() : 0;
- uint64_t Start = Offset + Piece.Offset;
- uint64_t Size = Piece.Size;
- if (Expr->isBitPiece()) {
- uint64_t AbsEnd = Expr->getBitPieceOffset() + Expr->getBitPieceSize();
+ // Fragment.Offset describes the offset inside the scalar.
+ uint64_t Offset =
+ Expr->isFragment() ? Expr->getFragmentOffsetInBits() : 0;
+ uint64_t Start = Offset + Fragment.Offset;
+ uint64_t Size = Fragment.Size;
+ if (Expr->isFragment()) {
+ uint64_t AbsEnd =
+ Expr->getFragmentOffsetInBits() + Expr->getFragmentSizeInBits();
if (Start >= AbsEnd)
// No need to describe a SROAed padding.
continue;
Size = std::min(Size, AbsEnd - Start);
}
- PieceExpr = DIB.createBitPieceExpression(Start, Size);
+ FragmentExpr = DIB.createFragmentExpression(Start, Size);
}
// Remove any existing dbg.declare intrinsic describing the same alloca.
- if (DbgDeclareInst *OldDDI = FindAllocaDbgDeclare(Piece.Alloca))
+ if (DbgDeclareInst *OldDDI = FindAllocaDbgDeclare(Fragment.Alloca))
OldDDI->eraseFromParent();
- DIB.insertDeclare(Piece.Alloca, Var, PieceExpr, DbgDecl->getDebugLoc(),
- &AI);
+ DIB.insertDeclare(Fragment.Alloca, Var, FragmentExpr,
+ DbgDecl->getDebugLoc(), &AI);
}
}
return Changed;
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