//===----------------------------------------------------------------------===//
#include "llvm/Transforms/Utils/ValueMapper.h"
-#include "llvm/DerivedTypes.h" // For getNullValue(Type::Int32Ty)
+#include "llvm/Type.h"
#include "llvm/Constants.h"
#include "llvm/Function.h"
-#include "llvm/IntrinsicInst.h"
#include "llvm/Metadata.h"
#include "llvm/ADT/SmallVector.h"
-#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
Value *llvm::MapValue(const Value *V, ValueMapTy &VM) {
// NOTE: VMSlot can be invalidated by any reference to VM, which can grow the
// DenseMap. This includes any recursive calls to MapValue.
- // Global values and metadata do not need to be seeded into the ValueMap if
- // they are using the identity mapping.
- if (isa<GlobalValue>(V) || isa<InlineAsm>(V) || isa<MetadataBase>(V))
+ // Global values and non-function-local metadata do not need to be seeded into
+ // the ValueMap if they are using the identity mapping.
+ if (isa<GlobalValue>(V) || isa<InlineAsm>(V) || isa<MDString>(V) ||
+ (isa<MDNode>(V) && !cast<MDNode>(V)->isFunctionLocal()))
return VMSlot = const_cast<Value*>(V);
+ if (const MDNode *MD = dyn_cast<MDNode>(V)) {
+ SmallVector<Value*, 4> Elts;
+ for (unsigned i = 0, e = MD->getNumOperands(); i != e; ++i)
+ Elts.push_back(MD->getOperand(i) ? MapValue(MD->getOperand(i), VM) : 0);
+ return VM[V] = MDNode::get(V->getContext(), Elts.data(), Elts.size());
+ }
+
Constant *C = const_cast<Constant*>(dyn_cast<Constant>(V));
if (C == 0) return 0;
return VM[V] = C;
}
- if (BlockAddress *BA = dyn_cast<BlockAddress>(C)) {
- Function *F = cast<Function>(MapValue(BA->getFunction(), VM));
- BasicBlock *BB = cast_or_null<BasicBlock>(MapValue(BA->getBasicBlock(),VM));
- return VM[V] = BlockAddress::get(F, BB ? BB : BA->getBasicBlock());
- }
-
- llvm_unreachable("Unknown type of constant!");
- return 0;
+ BlockAddress *BA = cast<BlockAddress>(C);
+ Function *F = cast<Function>(MapValue(BA->getFunction(), VM));
+ BasicBlock *BB = cast_or_null<BasicBlock>(MapValue(BA->getBasicBlock(),VM));
+ return VM[V] = BlockAddress::get(F, BB ? BB : BA->getBasicBlock());
}
/// RemapInstruction - Convert the instruction operands from referencing the
assert(V && "Referenced value not in value map!");
*op = V;
}
-
- // Map llvm.dbg.declare instruction's first operand, which points to
- // alloca instruction through MDNode. Since MDNodes are not counted as normal
- // uses, this will fall through cracks otherwise.
- const DbgDeclareInst *DDI = dyn_cast<DbgDeclareInst>(I);
- if (!DDI) return;
-
- Value *AddrInsn = DDI->getAddress();
- if (!AddrInsn) return;
-
- ValueMapTy::iterator VMI = ValueMap.find(AddrInsn);
- if (VMI == ValueMap.end()) return;
-
- Value *Elts[] = { VMI->second };
- MDNode *NewAddr = MDNode::get(AddrInsn->getContext(), Elts, 1);
- I->setOperand(1, NewAddr);
}