Begin handling union bitfields.
Note, this is just beginning.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@50835 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenTypes.cpp b/lib/CodeGen/CodeGenTypes.cpp
index 751cd3a..1544050 100644
--- a/lib/CodeGen/CodeGenTypes.cpp
+++ b/lib/CodeGen/CodeGenTypes.cpp
@@ -593,12 +593,14 @@
unsigned PrimaryEltNo = 0;
std::pair<uint64_t, unsigned> PrimaryElt =
CGT.getContext().getTypeInfo(FieldDecls[0]->getType());
- CGT.addFieldInfo(FieldDecls[0], 0);
+ if (FieldDecls[0]->isBitField())
+ placeBitField(FieldDecls[0]);
+ else
+ CGT.addFieldInfo(FieldDecls[0], 0);
unsigned Size = FieldDecls.size();
for(unsigned i = 1; i != Size; ++i) {
const FieldDecl *FD = FieldDecls[i];
- assert (!FD->isBitField() && "Bit fields are not yet supported");
std::pair<uint64_t, unsigned> EltInfo =
CGT.getContext().getTypeInfo(FD->getType());
@@ -611,7 +613,10 @@
}
// In union, each field gets first slot.
- CGT.addFieldInfo(FD, 0);
+ if (FD->isBitField())
+ placeBitField(FD);
+ else
+ CGT.addFieldInfo(FD, 0);
}
std::vector<const llvm::Type*> Fields;
diff --git a/test/CodeGen/union.c b/test/CodeGen/union.c
index 4d32abd..b47e697 100644
--- a/test/CodeGen/union.c
+++ b/test/CodeGen/union.c
@@ -26,3 +26,8 @@
int f3(value v) {
return *v.j;
}
+
+enum E9 { one, two };
+union S65 { enum E9 a:62; } ; union S65 s65;
+void fS65() { enum E9 e = s65.a; }
+