LowerTypes.cpp File Reference

#include "circt/Dialect/FIRRTL/FIRRTLAttributes.h"
#include "circt/Dialect/FIRRTL/FIRRTLOps.h"
#include "circt/Dialect/FIRRTL/FIRRTLTypes.h"
#include "circt/Dialect/FIRRTL/FIRRTLUtils.h"
#include "circt/Dialect/FIRRTL/FIRRTLVisitors.h"
#include "circt/Dialect/FIRRTL/Passes.h"
#include "circt/Dialect/HW/HWAttributes.h"
#include "circt/Dialect/HW/HWOpInterfaces.h"
#include "circt/Support/Debug.h"
#include "mlir/IR/ImplicitLocOpBuilder.h"
#include "mlir/IR/Threading.h"
#include "mlir/Pass/Pass.h"
#include "llvm/ADT/APSInt.h"
#include "llvm/ADT/BitVector.h"
#include "llvm/Support/Debug.h"
#include "circt/Dialect/FIRRTL/Passes.h.inc"

Include dependency graph for LowerTypes.cpp:

Go to the source code of this file.

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

Macros
#define	DEBUG_TYPE   "firrtl-lower-types"
#define	GEN_PASS_DEF_LOWERFIRRTLTYPES

Functions
static FIRRTLType	mapLoweredType (FIRRTLType type, FIRRTLBaseType fieldType)
	Return fieldType or fieldType as same ref as type. More...
static Type	mapLoweredType (Type type, FIRRTLBaseType fieldType)
	Return fieldType or fieldType as same ref as type. More...
static bool	isOneDimVectorType (FIRRTLType type)
	Return true if the type is a 1d vector type or ground type. More...
static bool	containsBundleType (FIRRTLType type)
	Return true if the type has a bundle type as subtype. More...
static bool	isPreservableAggregateType (Type type, PreserveAggregate::PreserveMode mode)
	Return true if we can preserve the type. More...
static bool	peelType (Type type, SmallVectorImpl< FlatBundleFieldEntry > &fields, PreserveAggregate::PreserveMode mode)
	Peel one layer of an aggregate type into its components. More...
static bool	isNotSubAccess (Operation *op)
	Return if something is not a normal subaccess. More...
static SmallVector< Operation * >	getSAWritePath (Operation *op)
	Look through and collect subfields leading to a subaccess. More...
static MemOp	cloneMemWithNewType (ImplicitLocOpBuilder *b, MemOp op, FlatBundleFieldEntry field)
	Clone memory for the specified field. Returns null op on error. More...
static Value	cloneAccess (ImplicitLocOpBuilder *builder, Operation *op, Value rhs)

Macro Definition Documentation

DEBUG_TYPE

#define DEBUG_TYPE   "firrtl-lower-types"

Definition at line 46 of file LowerTypes.cpp.

GEN_PASS_DEF_LOWERFIRRTLTYPES

#define GEN_PASS_DEF_LOWERFIRRTLTYPES

Definition at line 50 of file LowerTypes.cpp.

Function Documentation

cloneAccess()

static Value cloneAccess ( ImplicitLocOpBuilder *  builder, Operation *  op, Value  rhs  )

static

Definition at line 843 of file LowerTypes.cpp.

cloneMemWithNewType()

static MemOp cloneMemWithNewType ( ImplicitLocOpBuilder *  b, MemOp  op, FlatBundleFieldEntry  field  )

static

Clone memory for the specified field. Returns null op on error.

Definition at line 231 of file LowerTypes.cpp.

References circt::firrtl::Annotation::getDict(), circt::firrtl::Annotation::getFieldID(), circt::hw::FieldIdImpl::getMaxFieldID(), and circt::firrtl::Annotation::setMember().

containsBundleType()

static bool containsBundleType ( FIRRTLType  type )

static

Return true if the type has a bundle type as subtype.

Definition at line 120 of file LowerTypes.cpp.

References circt::firrtl::FIRRTLTypeSwitch< T, ResultT >::Case().

Referenced by isPreservableAggregateType().

getSAWritePath()

static SmallVector<Operation *> getSAWritePath ( Operation *  op )

static

Look through and collect subfields leading to a subaccess.

Definition at line 217 of file LowerTypes.cpp.

References isNotSubAccess().

isNotSubAccess()

static bool isNotSubAccess ( Operation *  op )

static

Return if something is not a normal subaccess.

Non-normal includes zero-length vectors and constant indexes (which are really subindexes).

Definition at line 207 of file LowerTypes.cpp.

Referenced by getSAWritePath().

isOneDimVectorType()

static bool isOneDimVectorType ( FIRRTLType  type )

static

Return true if the type is a 1d vector type or ground type.

Definition at line 107 of file LowerTypes.cpp.

References circt::firrtl::FIRRTLTypeSwitch< T, ResultT >::Case().

Referenced by isPreservableAggregateType().

isPreservableAggregateType()

static bool isPreservableAggregateType ( Type  type, PreserveAggregate::PreserveMode  mode  )

static

Return true if we can preserve the type.

Definition at line 131 of file LowerTypes.cpp.

References circt::firrtl::PreserveAggregate::All, containsBundleType(), circt::firrtl::hasZeroBitWidth(), isOneDimVectorType(), circt::firrtl::PreserveAggregate::None, circt::firrtl::PreserveAggregate::OneDimVec, and circt::firrtl::PreserveAggregate::Vec.

Referenced by peelType().

mapLoweredType() [1/2]

static FIRRTLType mapLoweredType ( FIRRTLType  type, FIRRTLBaseType  fieldType  )

static

Return fieldType or fieldType as same ref as type.

Definition at line 94 of file LowerTypes.cpp.

References circt::firrtl::mapBaseType().

Referenced by mapLoweredType().

mapLoweredType() [2/2]

static Type mapLoweredType ( Type  type, FIRRTLBaseType  fieldType  )

static

Return fieldType or fieldType as same ref as type.

Definition at line 99 of file LowerTypes.cpp.

References mapLoweredType().

peelType()

static bool peelType ( Type  type, SmallVectorImpl< FlatBundleFieldEntry > &  fields, PreserveAggregate::PreserveMode  mode  )

static

Peel one layer of an aggregate type into its components.

Type may be complex, but empty, in which case fields is empty, but the return is true.

Definition at line 170 of file LowerTypes.cpp.

References circt::firrtl::FIRRTLTypeSwitch< T, ResultT >::Case(), and isPreservableAggregateType().