EmulateWideInt.cpp File Reference (original) (raw)

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static std::pair< APInt, APInt >	getHalves (const APInt &value, unsigned newBitWidth)
	Returns N bottom and N top bits from value, where N = newBitWidth. More...

static Type	reduceInnermostDim (VectorType type)
	Returns the type with the last (innermost) dimension reduced to x1. More...

static Value	extractLastDimSlice (ConversionPatternRewriter &rewriter, Location loc, Value input, int64_t lastOffset)
	Extracts the input vector slice with elements at the last dimension offset by lastOffset. More...

static std::pair< Value, Value >	extractLastDimHalves (ConversionPatternRewriter &rewriter, Location loc, Value input)
	Extracts two vector slices from the input whose type is vector<...x2T>, with the first element at offset 0 and the second element at offset 1. More...

static Value	dropTrailingX1Dim (ConversionPatternRewriter &rewriter, Location loc, Value input)

static Value	appendX1Dim (ConversionPatternRewriter &rewriter, Location loc, Value input)
	Performs a vector shape cast to append an x1 dimension. More...

static Value	insertLastDimSlice (ConversionPatternRewriter &rewriter, Location loc, Value source, Value dest, int64_t lastOffset)
	Inserts the source vector slice into the dest vector at offset lastOffset in the last dimension. More...

static Value	constructResultVector (ConversionPatternRewriter &rewriter, Location loc, VectorType resultType, ValueRange resultComponents)
	Constructs a new vector of type resultType by creating a series of insertions of resultComponents, each at the next offset of the last vector dimension. More...

◆ GEN_PASS_DEF_ARITHEMULATEWIDEINT

#define GEN_PASS_DEF_ARITHEMULATEWIDEINT

◆ appendX1Dim()

◆ constructResultVector()

◆ dropTrailingX1Dim()

◆ extractLastDimHalves()

Extracts two vector slices from the input whose type is vector<...x2T>, with the first element at offset 0 and the second element at offset 1.

Definition at line 90 of file EmulateWideInt.cpp.

References extractLastDimSlice().

◆ extractLastDimSlice()

◆ getHalves()

static std::pair<APInt, APInt> getHalves ( const APInt & value, unsigned newBitWidth )	static

Returns N bottom and N top bits from value, where N = newBitWidth.

Treats value as a 2*N bits-wide integer. The bottom bits are returned in the first pair element, while the top bits in the second one.

Definition at line 41 of file EmulateWideInt.cpp.

◆ insertLastDimSlice()

◆ reduceInnermostDim()

static Type reduceInnermostDim ( VectorType type)	static

Returns the type with the last (innermost) dimension reduced to x1.

Scalarizes 1D vector inputs to match how we extract/insert vector values, e.g.:

vector<3x2xi16> --> vector<3x1xi16>
vector<2xi16> --> i16

Definition at line 53 of file EmulateWideInt.cpp.

References mlir::get().