HWIMDeadCodeElim.cpp File Reference

#include "circt/Dialect/HW/HWInstanceGraph.h"
#include "circt/Dialect/HW/HWOpInterfaces.h"
#include "circt/Dialect/HW/HWOps.h"
#include "circt/Dialect/HW/HWPasses.h"
#include "circt/Support/Utils.h"
#include "mlir/IR/BuiltinAttributes.h"
#include "mlir/IR/Iterators.h"
#include "mlir/Interfaces/SideEffectInterfaces.h"
#include "llvm/ADT/DenseMapInfoVariant.h"
#include "llvm/ADT/PostOrderIterator.h"
#include "llvm/ADT/SmallVector.h"
#include <variant>
#include "circt/Dialect/HW/Passes.h.inc"

Include dependency graph for HWIMDeadCodeElim.cpp:

Go to the source code of this file.

Namespaces
namespace	circt
	The InstanceGraph op interface, see InstanceGraphInterface.td for more details.
namespace	circt::hw

Macros
#define	DEBUG_TYPE   "hw-imdeadcodeelim"
#define	GEN_PASS_DEF_IMDEADCODEELIM

Functions
static bool	hasUnknownSideEffect (Operation *op)
static InstanceOp	cloneWithErasedPorts (InstanceOp &instance, const llvm::BitVector &inErasures, const llvm::BitVector &outErasures)
	Clone instance, but with ports deleted according to the inErasures and outErasures BitVectors.
static InstanceOp	cloneWithErasePortsAndReplaceUses (InstanceOp &instance, const llvm::BitVector &inErasures, const llvm::BitVector &outErasures)
	Static method for cloning instance of type InstanceOp with in- and output ports erased based on inErasures and outErasures respectively.

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "hw-imdeadcodeelim"

Definition at line 22 of file HWIMDeadCodeElim.cpp.

GEN_PASS_DEF_IMDEADCODEELIM

#define GEN_PASS_DEF_IMDEADCODEELIM

Definition at line 26 of file HWIMDeadCodeElim.cpp.

Function Documentation

cloneWithErasedPorts()

InstanceOp cloneWithErasedPorts ( InstanceOp & instance, const llvm::BitVector & inErasures, const llvm::BitVector & outErasures )

static

Clone instance, but with ports deleted according to the inErasures and outErasures BitVectors.

Definition at line 105 of file HWIMDeadCodeElim.cpp.

References assert(), and circt::removeElementsAtIndices().

Referenced by cloneWithErasePortsAndReplaceUses().

cloneWithErasePortsAndReplaceUses()

InstanceOp cloneWithErasePortsAndReplaceUses ( InstanceOp & instance, const llvm::BitVector & inErasures, const llvm::BitVector & outErasures )

static

Static method for cloning instance of type InstanceOp with in- and output ports erased based on inErasures and outErasures respectively.

The users of the results of the instance are also updated.

Definition at line 152 of file HWIMDeadCodeElim.cpp.

References cloneWithErasedPorts().

hasUnknownSideEffect()

bool hasUnknownSideEffect ( Operation * op )

static

Definition at line 89 of file HWIMDeadCodeElim.cpp.