diff options
| -rw-r--r-- | lib/Support/ValueHolder.cpp | 16 | ||||
| -rw-r--r-- | support/lib/Support/ValueHolder.cpp | 16 |
2 files changed, 32 insertions, 0 deletions
diff --git a/lib/Support/ValueHolder.cpp b/lib/Support/ValueHolder.cpp new file mode 100644 index 0000000..e0806b5 --- /dev/null +++ b/lib/Support/ValueHolder.cpp @@ -0,0 +1,16 @@ +//===-- ValueHolder.cpp - Wrapper for Value implementation ----------------===// +// +// This class defines a simple subclass of User, which keeps a pointer to a +// Value, which automatically updates when Value::replaceAllUsesWith is called. +// This is useful when you have pointers to Value's in your pass, but the +// pointers get invalidated when some other portion of the algorithm is +// replacing Values with other Values. +// +//===----------------------------------------------------------------------===// + +#include "llvm/Support/ValueHolder.h" +#include "llvm/Type.h" + +ValueHolder::ValueHolder(Value *V) : User(Type::TypeTy, Value::TypeVal) { + Operands.push_back(Use(V, this)); +} diff --git a/support/lib/Support/ValueHolder.cpp b/support/lib/Support/ValueHolder.cpp new file mode 100644 index 0000000..e0806b5 --- /dev/null +++ b/support/lib/Support/ValueHolder.cpp @@ -0,0 +1,16 @@ +//===-- ValueHolder.cpp - Wrapper for Value implementation ----------------===// +// +// This class defines a simple subclass of User, which keeps a pointer to a +// Value, which automatically updates when Value::replaceAllUsesWith is called. +// This is useful when you have pointers to Value's in your pass, but the +// pointers get invalidated when some other portion of the algorithm is +// replacing Values with other Values. +// +//===----------------------------------------------------------------------===// + +#include "llvm/Support/ValueHolder.h" +#include "llvm/Type.h" + +ValueHolder::ValueHolder(Value *V) : User(Type::TypeTy, Value::TypeVal) { + Operands.push_back(Use(V, this)); +} |