diff options
Diffstat (limited to 'lib/IR/DataLayout.cpp')
| -rw-r--r-- | lib/IR/DataLayout.cpp | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/lib/IR/DataLayout.cpp b/lib/IR/DataLayout.cpp index 4d867efe1b3d..5468f47bbfe6 100644 --- a/lib/IR/DataLayout.cpp +++ b/lib/IR/DataLayout.cpp @@ -41,6 +41,7 @@ StructLayout::StructLayout(StructType *ST, const DataLayout &DL) { assert(!ST->isOpaque() && "Cannot get layout of opaque structs"); StructAlignment = 0; StructSize = 0; + IsPadded = false; NumElements = ST->getNumElements(); // Loop over each of the elements, placing them in memory. @@ -49,8 +50,10 @@ StructLayout::StructLayout(StructType *ST, const DataLayout &DL) { unsigned TyAlign = ST->isPacked() ? 1 : DL.getABITypeAlignment(Ty); // Add padding if necessary to align the data element properly. - if ((StructSize & (TyAlign-1)) != 0) + if ((StructSize & (TyAlign-1)) != 0) { + IsPadded = true; StructSize = RoundUpToAlignment(StructSize, TyAlign); + } // Keep track of maximum alignment constraint. StructAlignment = std::max(TyAlign, StructAlignment); @@ -64,8 +67,10 @@ StructLayout::StructLayout(StructType *ST, const DataLayout &DL) { // Add padding to the end of the struct so that it could be put in an array // and all array elements would be aligned correctly. - if ((StructSize & (StructAlignment-1)) != 0) + if ((StructSize & (StructAlignment-1)) != 0) { + IsPadded = true; StructSize = RoundUpToAlignment(StructSize, StructAlignment); + } } @@ -461,8 +466,8 @@ unsigned DataLayout::getAlignmentInfo(AlignTypeEnum AlignType, return ABIInfo ? Alignments[i].ABIAlign : Alignments[i].PrefAlign; // The best match so far depends on what we're looking for. - if (AlignType == INTEGER_ALIGN && - Alignments[i].AlignType == INTEGER_ALIGN) { + if (AlignType == INTEGER_ALIGN && + Alignments[i].AlignType == INTEGER_ALIGN) { // The "best match" for integers is the smallest size that is larger than // the BitWidth requested. if (Alignments[i].TypeBitWidth > BitWidth && (BestMatchIdx == -1 || |