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Refine which vtbl is refernced in VTTs.

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llvm-svn: 87043
This commit is contained in:
Mike Stump
2009-11-12 23:36:21 +00:00
parent e96b2111b1
commit 2b34bc5a96
1 changed files with 12 additions and 6 deletions
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18
clang/lib/CodeGen/CGVtable.cpp
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@@ -105,8 +105,8 @@ public:
return llvm::ConstantExpr::getBitCast(m, Ptr8Ty);
}
#define D1(x)
//#define D1(X) do { if (getenv("DEBUG")) { X; } } while (0)
//#define D1(x)
#define D1(X) do { if (getenv("DEBUG")) { X; } } while (0)
void GenerateVBaseOffsets(const CXXRecordDecl *RD, uint64_t Offset,
bool updateVBIndex, Index_t current_vbindex) {
@@ -775,6 +775,10 @@ class VTTBuilder {
uint64_t Offset) {
int64_t AddressPoint;
AddressPoint = (*CGM.AddressPoints[Class])[std::make_pair(RD, Offset)];
// FIXME: We can never have 0 address point. Do this for now so gepping
// retains the same structure.
if (AddressPoint == 0)
AddressPoint = 1;
D1(printf("XXX address point for %s in %s at offset %d was %d\n",
RD->getNameAsCString(), Class->getNameAsCString(),
(int)Offset, (int)AddressPoint));
@@ -809,18 +813,20 @@ class VTTBuilder {
BaseOffset = Offset + Layout.getBaseClassOffset(Base);
} else
BaseOffset = BLayout.getVBaseClassOffset(Base);
llvm::Constant *subvtbl = vtbl;
if ((Base->getNumVBases() || BaseMorallyVirtual)
&& !NonVirtualPrimaryBase) {
// FIXME: Slightly too many of these for __ZTT8test8_B2
llvm::Constant *init;
if (MorallyVirtual)
if (BaseMorallyVirtual)
init = BuildVtablePtr(vtbl, RD, Offset);
else
else {
init = CGM.getVtableInfo().getCtorVtable(Class, Base, BaseOffset);
subvtbl = dyn_cast<llvm::Constant>(init->getOperand(0));
}
Inits.push_back(init);
// vtbl = dyn_cast<llvm::Constant>(init->getOperand(0));
}
Secondary(Base, vtbl, BaseOffset, BaseMorallyVirtual);
Secondary(Base, subvtbl, BaseOffset, BaseMorallyVirtual);
}
}