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-rw-r--r--clang/lib/AST/RecordLayoutBuilder.cpp5
1 files changed, 4 insertions, 1 deletions
diff --git a/clang/lib/AST/RecordLayoutBuilder.cpp b/clang/lib/AST/RecordLayoutBuilder.cpp
index ae67c3b3945..49c3b585109 100644
--- a/clang/lib/AST/RecordLayoutBuilder.cpp
+++ b/clang/lib/AST/RecordLayoutBuilder.cpp
@@ -1269,12 +1269,15 @@ void RecordLayoutBuilder::LayoutFields(const RecordDecl *D) {
// ignored:
else if (Context.ZeroBitfieldFollowsNonBitfield(FD, LastFD))
continue;
- else if (Context.BitfieldFollowsBitfield(FD, LastFD)) {
+ else if (Context.BitfieldFollowsBitfield(FD, LastFD) ||
+ Context.BitfieldFollowsNoneBitfield(FD, LastFD)) {
// Adjacent bit fields are packed into the same 1-, 2-, or
// 4-byte allocation unit if the integral types are the same
// size and if the next bit field fits into the current
// allocation unit without crossing the boundary imposed by the
// common alignment requirements of the bit fields.
+ // Also, establish a new alignment for a bitfield following
+ // a non-bitfield if size of their types differ.
std::pair<uint64_t, unsigned> FieldInfo =
Context.getTypeInfo(FD->getType());
uint64_t TypeSize = FieldInfo.first;
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