Simplify aggregate initilizer implementation. Use the CodeGenModule::EmitConstantExpr method when
possible. Fix mediabench/mpeg2/mpeg2dec test. llvm-svn: 47336
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@ -85,8 +85,6 @@ public:
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private:
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llvm::Constant *GetConstantInit(InitListExpr *E,
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const llvm::ArrayType *AType);
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void EmitNonConstInit(Expr *E, llvm::Value *Dest, const llvm::Type *DestType);
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};
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} // end anonymous namespace.
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@ -236,35 +234,6 @@ void AggExprEmitter::VisitConditionalOperator(const ConditionalOperator *E) {
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CGF.EmitBlock(ContBlock);
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}
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llvm::Constant *AggExprEmitter::GetConstantInit(InitListExpr *E,
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const llvm::ArrayType *AType) {
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std::vector<llvm::Constant*> ArrayElts;
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unsigned NumInitElements = E->getNumInits();
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const llvm::Type *ElementType = AType->getElementType();
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unsigned i;
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for (i = 0; i != NumInitElements; ++i) {
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if (InitListExpr *InitList = dyn_cast<InitListExpr>(E->getInit(i))) {
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assert(isa<llvm::ArrayType>(ElementType) && "Invalid initilizer");
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llvm::Constant *C =
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GetConstantInit(InitList, cast<llvm::ArrayType>(ElementType));
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if (!C) return NULL;
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ArrayElts.push_back(C);
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} else if (llvm::Constant *C =
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dyn_cast<llvm::Constant>(CGF.EmitScalarExpr(E->getInit(i))))
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ArrayElts.push_back(C);
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else
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return NULL;
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}
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// Remaining default initializers
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unsigned NumArrayElements = AType->getNumElements();
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for (/*Do not initialize i*/; i < NumArrayElements; ++i)
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ArrayElts.push_back(llvm::Constant::getNullValue(ElementType));
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return llvm::ConstantArray::get(AType, ArrayElts);
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}
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void AggExprEmitter::EmitNonConstInit(Expr *E, llvm::Value *DestPtr,
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const llvm::Type *DestType) {
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@ -309,17 +278,8 @@ void AggExprEmitter::EmitNonConstInit(Expr *E, llvm::Value *DestPtr,
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void AggExprEmitter::VisitInitListExpr(InitListExpr *E) {
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if (!E->getType()->isArrayType()) {
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CGF.WarnUnsupported(E, "aggregate init-list expression");
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return;
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}
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const llvm::PointerType *APType = cast<llvm::PointerType>(DestPtr->getType());
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const llvm::ArrayType *AType =
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cast<llvm::ArrayType>(APType->getElementType());
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llvm::Constant *V = GetConstantInit(E, AType);
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if (V) {
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if (E->isConstantExpr(CGF.CGM.getContext(), NULL)) {
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llvm::Constant *V = CGF.CGM.EmitConstantExpr(E);
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// Create global value to hold this array.
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V = new llvm::GlobalVariable(V->getType(), true,
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llvm::GlobalValue::InternalLinkage,
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@ -328,8 +288,19 @@ void AggExprEmitter::VisitInitListExpr(InitListExpr *E) {
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EmitAggregateCopy(DestPtr, V , E->getType());
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return;
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} else
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} else {
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if (!E->getType()->isArrayType()) {
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CGF.WarnUnsupported(E, "aggregate init-list expression");
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return;
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}
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const llvm::PointerType *APType =
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cast<llvm::PointerType>(DestPtr->getType());
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const llvm::ArrayType *AType =
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cast<llvm::ArrayType>(APType->getElementType());
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EmitNonConstInit(E, DestPtr, AType);
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}
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}
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//===----------------------------------------------------------------------===//
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@ -11,4 +11,5 @@ void f2() {
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int *c[2] = { &a[1][1], &b[2][2] };
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int *d[2][2] = { {&a[1][1], &b[2][2]}, {&a[0][0], &b[1][1]} };
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int *e[3][3] = { {&a[1][1], &b[2][2]}, {&a[0][0], &b[1][1]} };
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char ext[3][3] = {".Y",".U",".V"};
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}
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